@article{SanchezNayaStepanenkoMandeletal.2021,
  author    = {Sanchez-Naya, Roberto and Stepanenko, Vladimir and Mandel, Karl and Beuerle, Florian},
  title     = {Modulation of Crystallinity and Optical Properties in Composite Materials Combining Iron Oxide Nanoparticles and Dye-Containing Covalent Organic Frameworks},
  series = {Organic Materials},
  volume    = {3},
  journal   = {Organic Materials},
  doi       = {10.1055/s-0040-1722655},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-231480},
  pages     = {17-24},
  year      = {2021},
  abstract  = {Two series of organic-inorganic composite materials were synthesized through solvothermal imine condensation between diketopyrrolopyrrole dialdehyde DPP-1 and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (TAPP) in the presence of varying amounts of either amino- or carboxy-functionalized superparamagnetic iron oxide nanoparticles (FeO). Whereas high FeO loading induced cross-linking of the inorganic nanoparticles by amorphous imine polymers, a lower FeO content resulted in the formation of crystalline covalent organic framework domains. All hybrid materials were analyzed by magnetization measurements, powder X-ray diffraction, electron microscopy, IR, and UV/Vis absorption spectroscopy. Crystallinity, chromophore stacking, and visible absorption features are directly correlated to the mass fraction of the components, thus allowing for a fine-tuning of materials properties.},
  language  = {en}
}
@article{LewerentzHoffmannSarmentoCabral2021,
  author    = {Lewerentz, Anne and Hoffmann, Markus and Sarmento Cabral, Juliano},
  title     = {Depth diversity gradients of macrophytes: Shape, drivers, and recent shifts},
  series = {Ecology and Evolution},
  volume    = {11},
  journal   = {Ecology and Evolution},
  number    = {20},
  doi       = {10.1002/ece3.8089},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260280},
  pages     = {13830-13845},
  year      = {2021},
  abstract  = {Investigating diversity gradients helps to understand biodiversity drivers and threats. However, one diversity gradient is rarely assessed, namely how plant species distribute along the depth gradient of lakes. Here, we provide the first comprehensive characterization of depth diversity gradient (DDG) of alpha, beta, and gamma species richness of submerged macrophytes across multiple lakes. We characterize the DDG for additive richness components (alpha, beta, gamma), assess environmental drivers, and address temporal change over recent years. We take advantage of yet the largest dataset of macrophyte occurrence along lake depth (274 depth transects across 28 deep lakes) as well as of physiochemical measurements (12 deep lakes from 2006 to 2017 across Bavaria), provided publicly online by the Bavarian State Office for the Environment. We found a high variability in DDG shapes across the study lakes. The DDGs for alpha and gamma richness are predominantly hump-shaped, while beta richness shows a decreasing DDG. Generalized additive mixed-effect models indicate that the depth of the maximum richness (Dmax) is influenced by light quality, light quantity, and layering depth, whereas the respective maximum alpha richness within the depth gradient (Rmax) is significantly influenced by lake area only. Most observed DDGs seem generally stable over recent years. However, for single lakes we found significant linear trends for Rmax and Dmax going into different directions. The observed hump-shaped DDGs agree with three competing hypotheses: the mid-domain effect, the mean-disturbance hypothesis, and the mean-productivity hypothesis. The DDG amplitude seems driven by lake area (thus following known species-area relationships), whereas skewness depends on physiochemical factors, mainly water transparency and layering depth. Our results provide insights for conservation strategies and for mechanistic frameworks to disentangle competing explanatory hypotheses for the DDG.},
  language  = {en}
}
@article{HorderGuazaLasherasGrummeletal.2021,
  author    = {Horder, Hannes and Guaza Lasheras, Mar and Grummel, Nadine and Nadernezhad, Ali and Herbig, Johannes and Erg{\"u}n, S{\"u}leyman and Teßmar, J{\"o}rg and Groll, J{\"u}rgen and Fabry, Ben and Bauer-Kreisel, Petra and Blunk, Torsten},
  title     = {Bioprinting and differentiation of adipose-derived stromal cell spheroids for a 3D breast cancer-adipose tissue model},
  series = {Cells},
  volume    = {10},
  journal   = {Cells},
  number    = {4},
  doi       = {10.3390/cells10040803},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-236496},
  year      = {2021},
  abstract  = {Biofabrication, including printing technologies, has emerged as a powerful approach to the design of disease models, such as in cancer research. In breast cancer, adipose tissue has been acknowledged as an important part of the tumor microenvironment favoring tumor progression. Therefore, in this study, a 3D-printed breast cancer model for facilitating investigations into cancer cell-adipocyte interaction was developed. First, we focused on the printability of human adipose-derived stromal cell (ASC) spheroids in an extrusion-based bioprinting setup and the adipogenic differentiation within printed spheroids into adipose microtissues. The printing process was optimized in terms of spheroid viability and homogeneous spheroid distribution in a hyaluronic acid-based bioink. Adipogenic differentiation after printing was demonstrated by lipid accumulation, expression of adipogenic marker genes, and an adipogenic ECM profile. Subsequently, a breast cancer cell (MDA-MB-231) compartment was printed onto the adipose tissue constructs. After nine days of co-culture, we observed a cancer cell-induced reduction of the lipid content and a remodeling of the ECM within the adipose tissues, with increased fibronectin, collagen I and collagen VI expression. Together, our data demonstrate that 3D-printed breast cancer-adipose tissue models can recapitulate important aspects of the complex cell-cell and cell-matrix interplay within the tumor-stroma microenvironment},
  language  = {en}
}
@article{StetterWeidnerLillaetal.2021,
  author    = {Stetter, Christian and Weidner, Franziska and Lilla, Nadine and Weiland, Judith and Kunze, Ekkehard and Ernestus, Ralf-Ingo and Muellenbach, Ralf Michael and Westermaier, Thomas},
  title     = {Therapeutic hypercapnia for prevention of secondary ischemia after severe subarachnoid hemorrhage: physiological responses to continuous hypercapnia},
  series = {Scientific Reports},
  volume    = {11},
  journal   = {Scientific Reports},
  number    = {1},
  doi       = {10.1038/s41598-021-91007-7},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260779},
  pages     = {11715},
  year      = {2021},
  abstract  = {Temporary hypercapnia has been shown to increase cerebral blood flow (CBF) and might be used as a therapeutical tool in patients with severe subarachnoid hemorrhage (SAH). It was the aim of this study was to investigate the optimum duration of hypercapnia. This point is assumed to be the time at which buffer systems become active, cause an adaptation to changes of the arterial partial pressure of carbon dioxide (PaCO2) and annihilate a possible therapeutic effect. In this prospective interventional study in a neurosurgical ICU the arterial partial pressure of carbon dioxide (PaCO\(_2\)) was increased to a target range of 55 mmHg for 120 min by modification of the respiratory minute volume (RMV) one time a day between day 4 and 14 in 12 mechanically ventilated poor-grade SAH-patients. Arterial blood gases were measured every 15 min. CBF and brain tissue oxygen saturation (StiO\(_2\)) were the primary and secondary end points. Intracranial pressure (ICP) was controlled by an external ventricular drainage. Under continuous hypercapnia (PaCO\(_2\) of 53.17 ± 5.07), CBF was significantly elevated between 15 and 120 min after the start of hypercapnia. During the course of the trial intervention, cardiac output also increased significantly. To assess the direct effect of hypercapnia on brain perfusion, the increase of CBF was corrected by the parallel increase of cardiac output. The maximum direct CBF enhancing effect of hypercapnia of 32\% was noted at 45 min after the start of hypercapnia. Thereafter, the CBF enhancing slowly declined. No relevant adverse effects were observed. CBF and StiO\(_2\) reproducibly increased by controlled hypercapnia in all patients. After 45 min, the curve of CBF enhancement showed an inflection point when corrected by cardiac output. It is concluded that 45 min might be the optimum duration for a therapeutic use and may provide an optimal balance between the benefits of hypercapnia and risks of a negative rebound effect after return to normal ventilation parameters.},
  language  = {en}
}
@article{StarkPickelOsterbergKaufmannetal.2021,
  author    = {Stark, Toralf and Pickel, Susanne and Osterberg-Kaufmann, Norma and Mohamad-Klotzbach, Christoph},
  title     = {„Dysfunktionale Demokratie(n): Merkmale, Ursachen und Folgen". Digitale Jahrestagung des AK Demokratieforschung der DVPW am 11. M{\"a}rz 2021},
  series = {Zeitschrift f{\"u}r Vergleichende Politikwissenschaft},
  volume    = {15},
  journal   = {Zeitschrift f{\"u}r Vergleichende Politikwissenschaft},
  number    = {1},
  issn      = {1865-2654},
  doi       = {10.1007/s12286-021-00482-9},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-270084},
  pages     = {137-141},
  year      = {2021},
  abstract  = {Kein Abstract vorhanden.},
  language  = {de}
}
@article{MarincolaLiongSchoenetal.2021,
  author    = {Marincola, Gabriella and Liong, Olivia and Schoen, Christoph and Abouelfetouh, Alaa and Hamdy, Aisha and Wencker, Freya D. R. and Marciniak, Tessa and Becker, Karsten and K{\"o}ck, Robin and Ziebuhr, Wilma},
  title     = {Antimicrobial Resistance Profiles of Coagulase-Negative Staphylococci in Community-Based Healthy Individuals in Germany},
  series = {Frontiers in Public Health},
  volume    = {9},
  journal   = {Frontiers in Public Health},
  issn      = {2296-2565},
  doi       = {10.3389/fpubh.2021.684456},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-240881},
  year      = {2021},
  abstract  = {Coagulase-negative staphylococci (CoNS) are common opportunistic pathogens, but also ubiquitous human and animal commensals. Infection-associated CoNS from healthcare environments are typically characterized by pronounced antimicrobial resistance (AMR) including both methicillin- and multidrug-resistant isolates. Less is known about AMR patterns of CoNS colonizing the general population. Here we report on AMR in commensal CoNS recovered from 117 non-hospitalized volunteers in a region of Germany with a high livestock density. Among the 69 individuals colonized with CoNS, 29 had reported contacts to either companion or farm animals. CoNS were selectively cultivated from nasal swabs, followed by species definition by 16S rDNA sequencing and routine antibiotic susceptibility testing. Isolates displaying phenotypic AMR were further tested by PCR for presence of selected AMR genes. A total of 127 CoNS were isolated and Staphylococcus epidermidis (75\%) was the most common CoNS species identified. Nine isolates (7\%) were methicillin-resistant (MR) and carried the mecA gene, with seven individuals (10\%) being colonized with at least one MR-CoNS isolate. While resistance against gentamicin, phenicols and spectinomycin was rare, high resistance rates were found against tetracycline (39\%), erythromycin (33\%) and fusidic acid (24\%). In the majority of isolates, phenotypic resistance could be associated with corresponding AMR gene detection. Multidrug-resistance (MDR) was observed in 23\% (29/127) of the isolates, with 33\% (23/69) of the individuals being colonized with MDR-CoNS. The combined data suggest that MR- and MDR-CoNS are present in the community, with previous animal contact not significantly influencing the risk of becoming colonized with such isolates.},
  language  = {en}
}
@article{RauchSalzwedelBjarnasonWehrensetal.2021,
  author    = {Rauch, Bernhard and Salzwedel, Annett and Bjarnason-Wehrens, Birna and Albus, Christian and Meng, Karin and Schmid, Jean-Paul and Benzer, Werner and Hackbusch, Matthes and Jensen, Katrin and Schwaab, Bernhard and Altenberger, Johann and Benjamin, Nicola and Bestehorn, Kurt and Bongarth, Christa and D{\"o}rr, Gesine and Eichler, Sarah and Einwang, Hans-Peter and Falk, Johannes and Glatz, Johannes and Gielen, Stephan and Grilli, Maurizio and Gr{\"u}nig, Ekkehard and Guha, Manju and Hermann, Matthias and Hoberg, Eike and H{\"o}fer, Stefan and Kaemmerer, Harald and Ladwig, Karl-Heinz and Mayer-Berger, Wolfgang and Metzendorf, Maria-Inti and Nebel, Roland and Neidenbach, Rhoia Clara and Niebauer, Josef and Nixdorff, Uwe and Oberhoffer, Renate and Reibis, Rona and Reiss, Nils and Saure, Daniel and Schlitt, Axel and V{\"o}ller, Heinz and K{\"a}nel, Roland von and Weinbrenner, Susanne and Westphal, Ronja},
  title     = {Cardiac rehabilitation in German speaking countries of Europe — evidence-based guidelines from Germany, Austria and Switzerland LLKardReha-DACH — Part 1},
  series = {Journal of Clinical Medicine},
  volume    = {10},
  journal   = {Journal of Clinical Medicine},
  number    = {10},
  issn      = {2077-0383},
  doi       = {10.3390/jcm10102192},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239709},
  year      = {2021},
  abstract  = {Background: Although cardiovascular rehabilitation (CR) is well accepted in general, CR-attendance and delivery still considerably vary between the European countries. Moreover, clinical and prognostic effects of CR are not well established for a variety of cardiovascular diseases. Methods: The guidelines address all aspects of CR including indications, contents and delivery. By processing the guidelines, every step was externally supervised and moderated by independent members of the "Association of the Scientific Medical Societies in Germany" (AWMF). Four meta-analyses were performed to evaluate the prognostic effect of CR after acute coronary syndrome (ACS), after coronary bypass grafting (CABG), in patients with severe chronic systolic heart failure (HFrEF), and to define the effect of psychological interventions during CR. All other indications for CR-delivery were based on a predefined semi-structured literature search and recommendations were established by a formal consenting process including all medical societies involved in guideline generation. Results: Multidisciplinary CR is associated with a significant reduction in all-cause mortality in patients after ACS and after CABG, whereas HFrEF-patients (left ventricular ejection fraction <40\%) especially benefit in terms of exercise capacity and health-related quality of life. Patients with other cardiovascular diseases also benefit from CR-participation, but the scientific evidence is less clear. There is increasing evidence that the beneficial effect of CR strongly depends on "treatment intensity" including medical supervision, treatment of cardiovascular risk factors, information and education, and a minimum of individually adapted exercise volume. Additional psychologic interventions should be performed on the basis of individual needs. Conclusions: These guidelines reinforce the substantial benefit of CR in specific clinical indications, but also describe remaining deficits in CR-delivery in clinical practice as well as in CR-science with respect to methodology and presentation.},
  language  = {en}
}
@article{FriedmannAngeliMeierjohann2021,
  author    = {Friedmann Angeli, Jos{\´e} Pedro and Meierjohann, Svenja},
  title     = {NRF2-dependent stress defense in tumor antioxidant control and immune evasion},
  series = {Pigment Cell \& Melanoma Research},
  volume    = {34},
  journal   = {Pigment Cell \& Melanoma Research},
  number    = {2},
  doi       = {10.1111/pcmr.12946},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-224536},
  pages     = {268 -- 279},
  year      = {2021},
  abstract  = {The transcription factor NRF2 is known as the master regulator of the oxidative stress response. Tumor entities presenting oncogenic activation of NRF2, such as lung adenocarcinoma, are associated with drug resistance, and accumulating evidence demonstrates its involvement in immune evasion. In other cancer types, the KEAP1/NRF2 pathway is not commonly mutated, but NRF2 is activated by other means such as radiation, oncogenic activity, cytokines, or other pro-oxidant triggers characteristic of the tumor niche. The obvious effect of stress-activated NRF2 is the protection from oxidative or electrophilic damage and the adaptation of the tumor metabolism to changing conditions. However, data from melanoma also reveal a role of NRF2 in modulating differentiation and suppressing anti-tumor immunity. This review summarizes the function of NRF2 in this tumor entity and discusses the implications for current tumor therapies.},
  language  = {en}
}
@article{CullmannJahnSpindleretal.2021,
  author    = {Cullmann, Katharina and Jahn, Magdalena and Spindler, Markus and Schenk, Franziska and Manukjan, Georgi and Mucci, Adele and Steinemann, Doris and Boller, Klaus and Schulze, Harald and Bender, Markus and Moritz, Thomas and Modlich, Ute},
  title     = {Forming megakaryocytes from murine-induced pluripotent stem cells by the inducible overexpression of supporting factors},
  series = {Research and Practice in Thrombosis and Haemostasis},
  volume    = {5},
  journal   = {Research and Practice in Thrombosis and Haemostasis},
  number    = {1},
  doi       = {10.1002/rth2.12453},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-224565},
  pages     = {111 -- 124},
  year      = {2021},
  abstract  = {Background Platelets are small anucleate cells that circulate in the blood in a resting state but can be activated by external cues. In case of need, platelets from blood donors can be transfused. As an alternative source, platelets can be produced from induced pluripotent stem cells (iPSCs); however, recovered numbers are low. Objectives To optimize megakaryocyte (MK) and platelet output from murine iPSCs, we investigated overexpression of the transcription factors GATA-binding factor 1 (GATA1); nuclear factor, erythroid 2; and pre-B-cell leukemia transcription factor 1 (Pbx1) and a hyperactive variant of the small guanosine triphosphatase RhoA (RhoAhc). Methods To avoid off-target effects, we generated iPSCs carrying the reverse tetracycline-responsive transactivator M2 (rtTA-M2) in the Rosa26 locus and expressed the factors from Tet-inducible gammaretroviral vectors. Differentiation of iPSCs was initiated by embryoid body (EB) formation. After EB dissociation, early hematopoietic progenitors were enriched and cocultivated on OP9 feeder cells with thrombopoietin and stem cell factor to induce megakaryocyte (MK) differentiation. Results Overexpression of GATA1 and Pbx1 increased MK output 2- to 2.5-fold and allowed prolonged collection of MK. Cytologic and ultrastructural analyses identified typical MK with enlarged cells, multilobulated nuclei, granule structures, and an internal membrane system. However, GATA1 and Pbx1 expression did not improve MK maturation or platelet release, although in vitro-generated platelets were functional in spreading on fibrinogen or collagen-related peptide. Conclusion We demonstrate that the use of rtTA-M2 transgenic iPSCs transduced with Tet-inducible retroviral vectors allowed for gene expression at later time points during differentiation. With this strategy we could identify factors that increased in vitro MK production.},
  language  = {en}
}
@article{GenestLindstroemSchereretal.2021,
  author    = {Genest, Franca and Lindstr{\"o}m, Sarah and Scherer, Sophia and Schneider, Michael and Seefried, Lothar},
  title     = {Feasibility of simple exercise interventions for men with osteoporosis - A prospective randomized controlled pilot study},
  series = {Bone Reports},
  volume    = {15},
  journal   = {Bone Reports},
  doi       = {10.1016/j.bonr.2021.101099},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-261434},
  year      = {2021},
  abstract  = {Background Aging is associated with progressive loss of musculoskeletal performance. Exercise interventions can improve physical function in the elderly but there is a paucity of comparative assessments in order to understand what specific goals can be achieved particularly with less demanding exercise interventions readily accessible for untrained men. Methods Prospective randomized, controlled, single center exploratory trial to compare four distinct exercise interventions, i.e. Resistance Training (RT), Whole Body Vibration Exercise (WBV), Qi Gong (QG) and wearing a Spinal orthosis (SO) for 6 months in men at risk for osteoporosis aged 65-90 years. Primary endpoint was change in isometric one repetition maximum force trunk strength for extension (TSE) and flexion (TSF) compared to baseline, secondary endpoints covered key parameters of geriatric functional assessment, including Handgrip Strength (HS), Chair-Rise-Test (CRT), Usual Gait Speed (UGS) and Timed-Up-and-Go (TUG). Results Altogether 47 men (mean age 77 ±6.1 years) were randomized to RT, (n = 11) WBV (n = 13), QG (n = 10) and SO(n = 13). RT, defined as reference exercise intervention, lead to significant improvements for TSE (p = 0.009) and TSF (p = 0.013) and was significantly superior in the between-group analysis for TSE (p = 0.038). Vibration exercise caused sign. Improvements in TSE (p = 0.014) and CRT (p = 0.005), the Spinal orthosis improved CRT (p = 0.003) and Gait Speed (p = 0.027), while the QG intervention did not attain any sig. Developments. Subgroup analyses revealed most pronounced musculoskeletal progress in vulnerable patients (age ≥ 80 years, pre-sarcopenia, multimorbidity ≥3chronic diseases). Irrespective of the type of exercise, participants ≥80 years experienced significant gains in TSE (p = 0.029) and CRT (p = 0.017). Presarcopenic subjects (Skeletal muscle Index (SMI) ≤10.75 kg/m2) improved in TSE (p = 0.003), CRT (p = 0.001) and UGS (p = 0.016). Multimorbid participants achieved sig. Gains in TSE (p < 0.001), TSF (p = 0.002), UGS (p = 0.036) and HS (p = 0.046). Conclusions In this exploratory trial we found that simple exercise interventions are feasible in elderly men eliciting specific benefits, i.e. improvements are attained in those tasks addressed with the respective exercise modality. While targeted resistance training is superior in increasing TSE, alternative simple exercise interventions also appear to elicit beneficial effects, even in vulnerable patients, i.e. those with low muscle mass, above 80 years of age or multimorbidity.},
  language  = {en}
}
@article{KuzkinaBargarSchmittetal.2021,
  author    = {Kuzkina, Anastasia and Bargar, Connor and Schmitt, Daniela and R{\"o}ßle, Jonas and Wang, Wen and Schubert, Anna-Lena and Tatsuoka, Curtis and Gunzler, Steven A. and Zou, Wen-Quan and Volkmann, Jens and Sommer, Claudia and Doppler, Kathrin and Chen, Shu G.},
  title     = {Diagnostic value of skin RT-QuIC in Parkinson's disease: a two-laboratory study},
  series = {NPJ Parkinson's Disease},
  volume    = {7},
  journal   = {NPJ Parkinson's Disease},
  number    = {1},
  doi       = {10.1038/s41531-021-00242-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260451},
  year      = {2021},
  abstract  = {Skin alpha-synuclein deposition is considered a potential biomarker for Parkinson's disease (PD). Real-time quaking-induced conversion (RT-QuIC) is a novel, ultrasensitive, and efficient seeding assay that enables the detection of minute amounts of alpha-synuclein aggregates. We aimed to determine the diagnostic accuracy, reliability, and reproducibility of alpha-synuclein RT-QuIC assay of skin biopsy for diagnosing PD and to explore its correlation with clinical markers of PD in a two-center inter-laboratory comparison study. Patients with clinically diagnosed PD (n = 34), as well as control subjects (n = 30), underwent skin punch biopsy at multiple sites (neck, lower back, thigh, and lower leg). The skin biopsy samples (198 in total) were divided in half to be analyzed by RT-QuIC assay in two independent laboratories. The a-synuclein RT-QuIC assay of multiple skin biopsies supported the clinical diagnosis of PD with a diagnostic accuracy of 88.9\% and showed a high degree of inter-rater agreement between the two laboratories (92.2\%). Higher alpha-synuclein seeding activity in RT-QuIC was shown in patients with longer disease duration and more advanced disease stage and correlated with the presence of REM sleep behavior disorder, cognitive impairment, and constipation. The alpha-synuclein RT-QuIC assay of minimally invasive skin punch biopsy is a reliable and reproducible biomarker for Parkinson's disease. Moreover, alpha-synuclein RT-QuIC seeding activity in the skin may serve as a potential indicator of progression as it correlates with the disease stage and certain non-motor symptoms.},
  language  = {en}
}
@article{HahnBeudertGutmannetal.2021,
  author    = {Hahn, Lukas and Beudert, Matthias and Gutmann, Marcus and Keßler, Larissa and Stahlhut, Philipp and Fischer, Lena and Karakaya, Emine and Lorson, Thomas and Thievessen, Ingo and Detsch, Rainer and L{\"u}hmann, Tessa and Luxenhofer, Robert},
  title     = {From Thermogelling Hydrogels toward Functional Bioinks: Controlled Modification and Cytocompatible Crosslinking},
  series = {Macromolecular Bioscience},
  volume    = {21},
  journal   = {Macromolecular Bioscience},
  number    = {10},
  doi       = {10.1002/mabi.202100122},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257542},
  year      = {2021},
  abstract  = {Hydrogels are key components in bioink formulations to ensure printability and stability in biofabrication. In this study, a well-known Diels-Alder two-step post-polymerization modification approach is introduced into thermogelling diblock copolymers, comprising poly(2-methyl-2-oxazoline) and thermoresponsive poly(2-n-propyl-2-oxazine). The diblock copolymers are partially hydrolyzed and subsequently modified by acid/amine coupling with furan and maleimide moieties. While the thermogelling and shear-thinning properties allow excellent printability, trigger-less cell-friendly Diels-Alder click-chemistry yields long-term shape-fidelity. The introduced platform enables easy incorporation of cell-binding moieties (RGD-peptide) for cellular interaction. The hydrogel is functionalized with RGD-peptides using thiol-maleimide chemistry and cell proliferation as well as morphology of fibroblasts seeded on top of the hydrogels confirm the cell adhesion facilitated by the peptides. Finally, bioink formulations are tested for biocompatibility by incorporating fibroblasts homogenously inside the polymer solution pre-printing. After the printing and crosslinking process good cytocompatibility is confirmed. The established bioink system combines a two-step approach by physical precursor gelation followed by an additional chemical stabilization, offering a broad versatility for further biomechanical adaptation or bioresponsive peptide modification.},
  language  = {en}
}
@article{WillekeJansonZinketal.2021,
  author    = {Willeke, Kristina and Janson, Patrick and Zink, Katharina and Stupp, Carolin and Kittel-Schneider, Sarah and Bergh{\"o}fer, Anne and Ewert, Thomas and King, Ryan and Heuschmann, Peter U. and Zapf, Andreas and Wildner, Manfred and Keil, Thomas},
  title     = {Occurrence of mental illness and mental health risks among the self-employed: a systematic review},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {16},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph18168617},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245085},
  year      = {2021},
  abstract  = {We aimed to systematically identify and evaluate all studies of good quality that compared the occurrence of mental disorders in the self-employed versus employees. Adhering to the Cochrane guidelines, we conducted a systematic review and searched three major medical databases (MEDLINE, Web of Science, Embase), complemented by hand search. We included 26 (three longitudinal and 23 cross-sectional) population-based studies of good quality (using a validated quality assessment tool), with data from 3,128,877 participants in total. The longest of these studies, a Swedish national register evaluation with 25 years follow-up, showed a higher incidence of mental illness among the self-employed compared to white-collar workers, but a lower incidence compared to blue-collar workers. In the second longitudinal study from Sweden the self-employed had a lower incidence of mental illness compared to both blue- and white-collar workers over 15 years, whereas the third longitudinal study (South Korea) did not find a difference regarding the incidence of depressive symptoms over 6 years. Results from the cross-sectional studies showed associations between self-employment and poor general mental health and stress, but were inconsistent regarding other mental outcomes. Most studies from South Korea found a higher prevalence of mental disorders among the self-employed compared to employees, whereas the results of cross-sectional studies from outside Asia were less consistent. In conclusion, we found evidence from population-based studies for a link between self-employment and increased risk of mental illness. Further longitudinal studies are needed examining the potential risk for the development of mental disorders in specific subtypes of the self-employed.},
  language  = {en}
}
@article{KristDornquastReinholdetal.2021,
  author    = {Krist, Lilian and Dornquast, Christina and Reinhold, Thomas and Icke, Katja and Danquah, Ina and Willich, Stefan N. and Becher, Heiko and Keil, Thomas},
  title     = {Predictors of changes in physical activity and sedentary behavior during the COVID-19 pandemic in a Turkish migrant cohort in Germany},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {18},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph18189682},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246176},
  year      = {2021},
  abstract  = {The new coronavirus (COVID-19) pandemic and the resulting response measures have led to severe limitations of people's exercise possibilities with diminished physical activity (PA) and increased sedentary behavior (SB). Since for migrant groups in Germany, no data is available, this study aimed to investigate factors associated with changes in PA and SB in a sample of Turkish descent. Participants of a prospective cohort study (adults of Turkish descent, living in Berlin, Germany) completed a questionnaire regarding COVID-19 related topics including PA and SB since February 2020. Changes in PA and SB were described, and sociodemographic, migrant-related, and health-related predictors of PA decrease and SB increase were determined using multivariable regression analyses. Of 106 participants, 69\% reported a decline of PA, 36\% reported an increase in SB. PA decrease and SB increase seemed to be associated with inactivity before the pandemic as well as with the female sex. SB increase appeared to be additionally associated with educational level and BMI. The COVID-19 pandemic and the response measures had persistent detrimental effects on this migrant population. Since sufficient PA before the pandemic had the strongest association with maintaining PA and SB during the crisis, the German government and public health professionals should prioritize PA promotion in this vulnerable group.},
  language  = {en}
}
@article{SchneiderKruseBernardellideMattosetal.2021,
  author    = {Schneider, Verena and Kruse, Daniel and Bernardelli de Mattos, Ives and Z{\"o}phel, Saskia and Tiltmann, Kendra-Kathrin and Reigl, Amelie and Khan, Sarah and Funk, Martin and Bodenschatz, Karl and Groeber-Becker, Florian},
  title     = {A 3D in vitro model for burn wounds: monitoring of regeneration on the epidermal level},
  series = {Biomedicines},
  volume    = {9},
  journal   = {Biomedicines},
  number    = {9},
  issn      = {2227-9059},
  doi       = {10.3390/biomedicines9091153},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246068},
  year      = {2021},
  abstract  = {Burns affect millions every year and a model to mimic the pathophysiology of such injuries in detail is required to better understand regeneration. The current gold standard for studying burn wounds are animal models, which are under criticism due to ethical considerations and a limited predictiveness. Here, we present a three-dimensional burn model, based on an open-source model, to monitor wound healing on the epidermal level. Skin equivalents were burned, using a preheated metal cylinder. The healing process was monitored regarding histomorphology, metabolic changes, inflammatory response and reepithelialization for 14 days. During this time, the wound size decreased from 25\% to 5\% of the model area and the inflammatory response (IL-1β, IL-6 and IL-8) showed a comparable course to wounding and healing in vivo. Additionally, the topical application of 5\% dexpanthenol enhanced tissue morphology and the number of proliferative keratinocytes in the newly formed epidermis, but did not influence the overall reepithelialization rate. In summary, the model showed a comparable healing process to in vivo, and thus, offers the opportunity to better understand the physiology of thermal burn wound healing on the keratinocyte level.},
  language  = {en}
}
@article{WaltherZimmermannTheuersbacheretal.2021,
  author    = {Walther, Grit and Zimmermann, Anna and Theuersbacher, Johanna and Kaerger, Kerstin and Lilienfeld-Toal, Marie von and Roth, Mathias and Kampik, Daniel and Geerling, Gerd and Kurzai, Oliver},
  title     = {Eye infections caused by filamentous fungi: spectrum and antifungal susceptibility of the prevailing agents in Germany},
  series = {Journal of Fungi},
  volume    = {7},
  journal   = {Journal of Fungi},
  number    = {7},
  issn      = {2309-608X},
  doi       = {10.3390/jof7070511},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-241810},
  year      = {2021},
  abstract  = {Fungal eye infections can lead to loss of vision and blindness. The disease is most prevalent in the tropics, although case numbers in moderate climates are increasing as well. This study aimed to determine the dominating filamentous fungi causing eye infections in Germany and their antifungal susceptibility profiles in order to improve treatment, including cases with unidentified pathogenic fungi. As such, we studied all filamentous fungi isolated from the eye or associated materials that were sent to the NRZMyk between 2014 and 2020. All strains were molecularly identified and antifungal susceptibility testing according to the EUCAST protocol was performed for common species. In total, 242 strains of 66 species were received. Fusarium was the dominating genus, followed by Aspergillus, Purpureocillium, Alternaria, and Scedosporium. The most prevalent species in eye samples were Fusarium petroliphilum, F. keratoplasticum, and F. solani of the Fusarium solani species complex. The spectrum of species comprises less susceptible taxa for amphotericin B, natamycin, and azoles, including voriconazole. Natamycin is effective for most species but not for Aspergillus flavus or Purpureocillium spp. Some strains of F. solani show MICs higher than 16 mg/L. Our data underline the importance of species identification for correct treatment.},
  language  = {en}
}
@article{EmmerichMurawskiEhmenetal.2021,
  author    = {Emmerich, Petra and Murawski, Carolin and Ehmen, Christa and von Possel, Ronald and Pekarek, Neele and Oestereich, Lisa and Duraffour, Sophie and Pahlmann, Meike and Struck, Nicole and Eibach, Daniel and Krumkamp, Ralf and Amuasi, John and Maiga-Ascofar{\´e}, Oumou and Rakotozandrindrainy, Raphael and Asogun, Danny and Ighodalo, Yemisi and Kann, Simone and May, J{\"u}rgen and Tannich, Egbert and Deschermeier, Christina},
  title     = {Limited specificity of commercially available SARS-CoV-2 IgG ELISAs in serum samples of African origin},
  series = {Tropical Medicine \& International Health},
  volume    = {26},
  journal   = {Tropical Medicine \& International Health},
  number    = {6},
  doi       = {10.1111/tmi.13569},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239899},
  pages     = {621 -- 631},
  year      = {2021},
  abstract  = {Objectives Specific serological tests are mandatory for reliable SARS-CoV-2 diagnostics and seroprevalence studies. Here, we assess the specificities of four commercially available SARS-CoV-2 IgG ELISAs in serum/plasma panels originating from Africa, South America, and Europe. Methods 882 serum/plasma samples collected from symptom-free donors before the COVID-19 pandemic in three African countries (Ghana, Madagascar, Nigeria), Colombia, and Germany were analysed with three nucleocapsid-based ELISAs (Euroimmun Anti-SARS-CoV-2-NCP IgG, EDI™ Novel Coronavirus COVID-19 IgG, Mikrogen recomWell SARS-CoV-2 IgG), one spike/S1-based ELISA (Euroimmun Anti-SARS-CoV-2 IgG), and in-house common cold CoV ELISAs. Results High specificity was confirmed for all SARS-CoV-2 IgG ELISAs for Madagascan (93.4-99.4\%), Colombian (97.8-100.0\%), and German (95.9-100.0\%) samples. In contrast, specificity was much lower for the Ghanaian and Nigerian serum panels (Ghana: NCP-based assays 77.7-89.7\%, spike/S1-based assay 94.3\%; Nigeria: NCP-based assays 39.3-82.7\%, spike/S1-based assay 90.7\%). 15 of 600 African sera were concordantly classified as positive in both the NCP-based and the spike/S1-based Euroimmun ELISA, but did not inhibit spike/ACE2 binding in a surrogate virus neutralisation test. IgG antibodies elicited by previous infections with common cold CoVs were found in all sample panels, including those from Madagascar, Colombia, and Germany and thus do not inevitably hamper assay specificity. Nevertheless, high levels of IgG antibodies interacting with OC43 NCP were found in all 15 SARS-CoV-2 NCP/spike/S1 ELISA positive sera. Conclusions Depending on the chosen antigen and assay protocol, SARS-CoV-2 IgG ELISA specificity may be significantly reduced in certain populations probably due to interference of immune responses to endemic pathogens like other viruses or parasites.},
  language  = {en}
}
@article{StetterLopezCaperuchipiHoppKraemeretal.2021,
  author    = {Stetter, Christian and Lopez-Caperuchipi, Simon and Hopp-Kr{\"a}mer, Sarah and Bieber, Michael and Kleinschnitz, Christoph and Sir{\´e}n, Anna-Leena and Albert-Weißenberger, Christiane},
  title     = {Amelioration of cognitive and behavioral deficits after traumatic brain injury in coagulation factor XII deficient mice},
  series = {International Journal of Molecular Sciences},
  volume    = {22},
  journal   = {International Journal of Molecular Sciences},
  number    = {9},
  issn      = {1422-0067},
  doi       = {10.3390/ijms22094855},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-284959},
  year      = {2021},
  abstract  = {Based on recent findings that show that depletion of factor XII (FXII) leads to better posttraumatic neurological recovery, we studied the effect of FXII-deficiency on post-traumatic cognitive and behavioral outcomes in female and male mice. In agreement with our previous findings, neurological deficits on day 7 after weight-drop traumatic brain injury (TBI) were significantly reduced in FXII\(^{-/-}\) mice compared to wild type (WT) mice. Also, glycoprotein Ib (GPIb)-positive platelet aggregates were more frequent in brain microvasculature of WT than FXII\(^{-/-}\) mice 3 months after TBI. Six weeks after TBI, memory for novel object was significantly reduced in both female and male WT but not in FXII\(^{-/-}\) mice compared to sham-operated mice. In the setting of automated home-cage monitoring of socially housed mice in IntelliCages, female WT mice but not FXII\(^{-/-}\) mice showed decreased exploration and reacted negatively to reward extinction one month after TBI. Since neuroendocrine stress after TBI might contribute to trauma-induced cognitive dysfunction and negative emotional contrast reactions, we measured peripheral corticosterone levels and the ration of heart, lung, and spleen weight to bodyweight. Three months after TBI, plasma corticosterone levels were significantly suppressed in both female and male WT but not in FXII\(^{-/-}\) mice, while the relative heart weight increased in males but not in females of both phenotypes when compared to sham-operated mice. Our results indicate that FXII deficiency is associated with efficient post-traumatic behavioral and neuroendocrine recovery.},
  language  = {en}
}
@article{WielandStrisselSchorleetal.2021,
  author    = {Wieland, Annalena and Strissel, Pamela L. and Schorle, Hannah and Bakirci, Ezgi and Janzen, Dieter and Beckmann, Matthias W. and Eckstein, Markus and Dalton, Paul D. and Strick, Reiner},
  title     = {Brain and breast cancer cells with PTEN loss of function reveal enhanced durotaxis and RHOB dependent amoeboid migration utilizing 3D scaffolds and aligned microfiber tracts},
  series = {Cancers},
  volume    = {13},
  journal   = {Cancers},
  number    = {20},
  issn      = {2072-6694},
  doi       = {10.3390/cancers13205144},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248443},
  year      = {2021},
  abstract  = {Background: Glioblastoma multiforme (GBM) and metastatic triple-negative breast cancer (TNBC) with PTEN mutations often lead to brain dissemination with poor patient outcome, thus new therapeutic targets are needed. To understand signaling, controlling the dynamics and mechanics of brain tumor cell migration, we implemented GBM and TNBC cell lines and designed 3D aligned microfibers and scaffolds mimicking brain structures. Methods: 3D microfibers and scaffolds were printed using melt electrowriting. GBM and TNBC cell lines with opposing PTEN genotypes were analyzed with RHO-ROCK-PTEN inhibitors and PTEN rescue using live-cell imaging. RNA-sequencing and qPCR of tumor cells in 3D with microfibers were performed, while scanning electron microscopy and confocal microscopy addressed cell morphology. Results: In contrast to the PTEN wildtype, GBM and TNBC cells with PTEN loss of function yielded enhanced durotaxis, topotaxis, adhesion, amoeboid migration on 3D microfibers and significant high RHOB expression. Functional studies concerning RHOB-ROCK-PTEN signaling confirmed the essential role for the above cellular processes. Conclusions: This study demonstrates a significant role of the PTEN genotype and RHOB expression for durotaxis, adhesion and migration dependent on 3D. GBM and TNBC cells with PTEN loss of function have an affinity for stiff brain structures promoting metastasis. 3D microfibers represent an important tool to model brain metastasizing tumor cells, where RHO-inhibitors could play an essential role for improved therapy.},
  language  = {en}
}
@article{LiangRiosMiguelJaricketal.2021,
  author    = {Liang, Chunguang and Rios-Miguel, Ana B. and Jarick, Marcel and Neurgaonkar, Priya and Girard, Myriam and Fran{\c{c}}ois, Patrice and Schrenzel, Jacques and Ibrahim, Eslam S. and Ohlsen, Knut and Dandekar, Thomas},
  title     = {Staphylococcus aureus transcriptome data and metabolic modelling investigate the interplay of Ser/Thr kinase PknB, its phosphatase Stp, the glmR/yvcK regulon and the cdaA operon for metabolic adaptation},
  series = {Microorganisms},
  volume    = {9},
  journal   = {Microorganisms},
  number    = {10},
  issn      = {2076-2607},
  doi       = {10.3390/microorganisms9102148},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248459},
  year      = {2021},
  abstract  = {Serine/threonine kinase PknB and its corresponding phosphatase Stp are important regulators of many cell functions in the pathogen S. aureus. Genome-scale gene expression data of S. aureus strain NewHG (sigB\(^+\)) elucidated their effect on physiological functions. Moreover, metabolic modelling from these data inferred metabolic adaptations. We compared wild-type to deletion strains lacking pknB, stp or both. Ser/Thr phosphorylation of target proteins by PknB switched amino acid catabolism off and gluconeogenesis on to provide the cell with sufficient components. We revealed a significant impact of PknB and Stp on peptidoglycan, nucleotide and aromatic amino acid synthesis, as well as catabolism involving aspartate transaminase. Moreover, pyrimidine synthesis was dramatically impaired by stp deletion but only slightly by functional loss of PknB. In double knockouts, higher activity concerned genes involved in peptidoglycan, purine and aromatic amino acid synthesis from glucose but lower activity of pyrimidine synthesis from glucose compared to the wild type. A second transcriptome dataset from S. aureus NCTC 8325 (sigB\(^-\)) validated the predictions. For this metabolic adaptation, PknB was found to interact with CdaA and the yvcK/glmR regulon. The involved GlmR structure and the GlmS riboswitch were modelled. Furthermore, PknB phosphorylation lowered the expression of many virulence factors, and the study shed light on S. aureus infection processes.},
  language  = {en}
}
@article{BothouSharmaOoetal.2021,
  author    = {Bothou, Christina and Sharma, Ashish and Oo, Adrian and Kim, Baek and Perge, Pal and Igaz, Peter and Ronchi, Cristina L. and Shapiro, Igor and Hantel, Constanze},
  title     = {Novel insights into the molecular regulation of ribonucleotide reductase in adrenocortical carcinoma treatment},
  series = {Cancers},
  volume    = {13},
  journal   = {Cancers},
  number    = {16},
  issn      = {2072-6694},
  doi       = {10.3390/cancers13164200},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245132},
  year      = {2021},
  abstract  = {Current systemic treatment options for patients with adrenocortical carcinomas (ACCs) are far from being satisfactory. DNA damage/repair mechanisms, which involve, e.g., ataxia-telangiectasia-mutated (ATM) and ataxia-telangiectasia/Rad3-related (ATR) protein signaling or ribonucleotide reductase subunits M1/M2 (RRM1/RRM2)-encoded ribonucleotide reductase (RNR) activation, commonly contribute to drug resistance. Moreover, the regulation of RRM2b, the p53-induced alternative to RRM2, is of unclear importance for ACC. Upon extensive drug screening, including a large panel of chemotherapies and molecular targeted inhibitors, we provide strong evidence for the anti-tumoral efficacy of combined gemcitabine (G) and cisplatin (C) treatment against the adrenocortical cell lines NCI-H295R and MUC-1. However, accompanying induction of RRM1, RRM2, and RRM2b expression also indicated developing G resistance, a frequent side effect in clinical patient care. Interestingly, this effect was partially reversed upon addition of C. We confirmed our findings for RRM2 protein, RNR-dependent dATP levels, and modulations of related ATM/ATR signaling. Finally, we screened for complementing inhibitors of the DNA damage/repair system targeting RNR, Wee1, CHK1/2, ATR, and ATM. Notably, the combination of G, C, and the dual RRM1/RRM2 inhibitor COH29 resulted in previously unreached total cell killing. In summary, we provide evidence that RNR-modulating therapies might represent a new therapeutic option for ACC.},
  language  = {en}
}
@article{HaydenLimbachSchuleretal.2021,
  author    = {Hayden, Markus C. and Limbach, Matthias and Schuler, Michael and Merkl, Steffen and Schwarzl, Gabriele and Jakab, Katalin and Nowak, Dennis and Schultz, Konrad},
  title     = {Effectiveness of a three-week inpatient pulmonary rehabilitation program for patients after COVID-19: a prospective observational study},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {17},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph18179001},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245170},
  year      = {2021},
  abstract  = {For COVID-19 patients who remain symptomatic after the acute phase, pulmonary rehabilitation (PR) is recommended. However, only a few studies have investigated the effectiveness of PR, especially considering the duration between the acute phase of COVID-19 and the onset of rehabilitation, as well as the initial severity. This prospective observational study evaluated the efficacy of PR in patients after COVID-19. A total of 120 still-symptomatic patients referred for PR after overcoming acute COVID-19 were asked to participate, of whom 108 (mean age 55.6 ± 10.1 years, 45.4\% female) consented. The patients were assigned to three groups according to the time of referral and initial disease severity (severe acute; severe after interval; mild after interval). The primary outcome was dyspnea. Secondary outcomes included other respiratory disease symptoms, physical capacity, lung function, fatigue, quality of life (QoL), depression, and anxiety. Furthermore, patients rated the overall effectiveness of PR and their subjective change in health status. At the end of PR, we detected improvements with large effect sizes in exertional dyspnea, physical capacity, QoL, fatigue, and depression in the overall group. Other parameters changed with small to medium effect sizes. PR was effective after acute COVID-19 in all three groups analyzed.},
  language  = {en}
}
@article{KurotschkaTiedemannWolfetal.2021,
  author    = {Kurotschka, Peter Konstantin and Tiedemann, Elena and Wolf, Dominik and Thier, Nicola and Forster, Johannes and Liese, Johannes G. and Gagyor, Ildiko},
  title     = {Management of common infections in German primary care: a cross-sectional survey of knowledge and confidence among General Practitioners and outpatient pediatricians},
  series = {Antibiotics},
  volume    = {10},
  journal   = {Antibiotics},
  number    = {9},
  issn      = {2079-6382},
  doi       = {10.3390/antibiotics10091131},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246272},
  year      = {2021},
  abstract  = {Outpatient antibiotic use is closely related to antimicrobial resistance and in Germany, almost 70\% of antibiotic prescriptions in human health are issued by primary care physicians (PCPs). The aim of this study was to explore PCPs, namely General Practitioners' (GPs) and outpatient pediatricians' (PDs) knowledge of guideline recommendations on rational antimicrobial treatment, the determinants of confidence in treatment decisions and the perceived need for training in this topic in a large sample of PCPs from southern Germany. Out of 3753 reachable PCPs, 1311 completed the survey (overall response rate = 34.9\%). Knowledge of guideline recommendations and perceived confidence in making treatment decisions were high in both GPs and PDs. The two highest rated influencing factors on prescribing decisions were reported to be guideline recommendations and own clinical experiences, hence patients' demands and expectations were judged as not influencing treatment decisions. The majority of physicians declared to have attended at least one specific training course on antibiotic use, yet almost all the participating PCPs declared to need more training on this topic. More studies are needed to explore how consultation-related and context-specific factors could influence antibiotic prescriptions in general and pediatric primary care in Germany beyond knowledge. Moreover, efforts should be undertaken to explore the training needs of PCPs in Germany, as this would serve the development of evidence-based educational interventions targeted to the improvement of antibiotic prescribing decisions rather than being focused solely on knowledge of guidelines.},
  language  = {en}
}
@article{BaurRamserKelleretal.2021,
  author    = {Baur, Johannes and Ramser, Michaela and Keller, Nicola and Muysoms, Filip and D{\"o}rfer, J{\"o}rg and Wiegering, Armin and Eisner, Lukas and Dietz, Ulrich A.},
  title     = {Robotic hernia repair II. English version},
  series = {Der Chirurg},
  volume    = {92},
  journal   = {Der Chirurg},
  number    = {Suppl 1},
  doi       = {10.1007/s00104-021-01479-6},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-323866},
  pages     = {S15-S26},
  year      = {2021},
  abstract  = {Endoscopic management of umbilical and incisional hernias has adapted to the limitations of conventional laparoscopic instruments over the past 30 years. This includes the development of meshes for intraperitoneal placement (intraperitoneal onlay mesh, IPOM), with antiadhesive coatings; however, adhesions do occur in a significant proportion of these patients. Minimally invasive procedures result in fewer perioperative complications, but with a slightly higher recurrence rate. With the ergonomic resources of robotics, which offers angled instruments, it is now possible to implant meshes in a minimally invasively manner in different abdominal wall layers while achieving morphologic and functional reconstruction of the abdominal wall. This video article presents the treatment of ventral and incisional hernias with mesh implantation into the preperitoneal space (robot-assisted transabdominal preperitoneal ventral hernia repair, r‑ventral TAPP) as well as into the retrorectus space (r-Rives and robotic transabdominal retromuscular umbilical prosthetic repair, r‑TARUP, respectively). The results of a cohort study of 118 consecutive patients are presented and discussed with regard to the added value of the robotic technique in extraperitoneal mesh implantation and in the training of residents.},
  language  = {en}
}
@article{RamserBaurKelleretal.2021,
  author    = {Ramser, Michaela and Baur, Johannes and Keller, Nicola and Kukleta, Jan F. and D{\"o}rfer, J{\"o}rg and Wiegering, Armin and Eisner, Lukas and Dietz, Ulrich A.},
  title     = {Robotic hernia surgery I. English version},
  series = {Der Chirurg},
  volume    = {92},
  journal   = {Der Chirurg},
  number    = {Suppl 1},
  doi       = {10.1007/s00104-021-01446-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-323934},
  pages     = {S1-S13},
  year      = {2021},
  abstract  = {The treatment of inguinal hernias with open and minimally invasive procedures has reached a high standard in terms of outcome over the past 30 years. However, there is still need for further improvement, mainly in terms of reduction of postoperative seroma, chronic pain, and recurrence. This video article presents the endoscopic anatomy of the groin with regard to robotic transabdominal preperitoneal patch plasty (r‑TAPP) and illustrates the surgical steps of r‑TAPP with respective video sequences. The results of a cohort study of 302 consecutive hernias operated by r‑TAPP are presented and discussed in light of the added value of the robotic technique, including advantages for surgical training. r‑TAPP is the natural evolution of conventional TAPP and has the potential to become a new standard as equipment availability increases and material costs decrease. Future studies will also have to refine the multifaceted added value of r‑TAPP with new parameters.},
  language  = {en}
}
@article{DietzKudsiGarciaUrenaetal.2021,
  author    = {Dietz, Ulrich A. and Kudsi, O. Yusef and Garcia-Ure{\~n}a, Miguel and Baur, Johannes and Ramser, Michaela and Maksimovic, Sladjana and Keller, Nicola and D{\"o}rfer, J{\"o}rg and Eisner, Lukas and Wiegering, Armin},
  title     = {Robotic hernia repair III. English version},
  series = {Der Chirurg},
  volume    = {92},
  journal   = {Der Chirurg},
  number    = {Suppl 1},
  doi       = {10.1007/s00104-021-01500-y},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-323896},
  pages     = {S28-S39},
  year      = {2021},
  abstract  = {The principle of targeted separation or weakening of individual components of the abdominal wall to relieve tension in the median line during major abdominal reconstruction has been known for over 30 years as anterior component separation (aCS) and is an established procedure. In search of alternatives with lower complication rates, posterior component separation (pCS) was developed; transversus abdominis release (TAR) is a nerve-sparing modification of pCS. With the ergonomic resources of robotics (e.g., angled instruments), TAR can be performed in a minimally invasive manner (r-TAR): hernia gaps of up to 14 cm can be closed and a large extraperitoneal mesh implanted. In this video article, the treatment of large incisional hernias using the r‑TAR technique is presented. Exemplary results of a cohort study in 13 consecutive patients are presented. The procedure is challenging, but our own results—as well as reports from the literature—are encouraging. The r‑TAR is becoming the pinnacle procedure for abdominal wall reconstruction.},
  language  = {en}
}
@article{AlbertLeziusStoerketal.2021,
  author    = {Albert, Judith and Lezius, Susanne and St{\"o}rk, Stefan and Morbach, Caroline and G{\"u}der, G{\"u}lmisal and Frantz, Stefan and Wegscheider, Karl and Ertl, Georg and Angermann, Christiane E.},
  title     = {Trajectories of Left Ventricular Ejection Fraction After Acute Decompensation for Systolic Heart Failure: Concomitant Echocardiographic and Systemic Changes, Predictors, and Impact on Clinical Outcomes},
  series = {Journal of the American Heart Association},
  volume    = {10},
  journal   = {Journal of the American Heart Association},
  doi       = {10.1161/JAHA.120.017822},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-230210},
  year      = {2021},
  abstract  = {Prospective longitudinal follow-up of left ventricular ejection fraction (LVEF) trajectories after acute cardiac decompensation of heart failure is lacking. We investigated changes in LVEF and covariates at 6-months' follow-up in patients with a predischarge LVEF ≤40\%, and determined predictors and prognostic implications of LVEF changes through 18-months' follow-up. Methods and Results Interdisciplinary Network Heart Failure program participants (n=633) were categorized into subgroups based on LVEF at 6-months' follow-up: normalized LVEF (>50\%; heart failure with normalized ejection fraction, n=147); midrange LVEF (41\%-50\%; heart failure with midrange ejection fraction, n=195), or persistently reduced LVEF (≤40\%; heart failure with persistently reduced LVEF , n=291). All received guideline-directed medical therapies. At 6-months' follow-up, compared with patients with heart failure with persistently reduced LVEF, heart failure with normalized LVEF or heart failure with midrange LVEF subgroups showed greater reductions in LV end-diastolic/end-systolic diameters (both P<0.001), and left atrial systolic diameter (P=0.002), more increased septal/posterior end-diastolic wall-thickness (both P<0.001), and significantly greater improvement in diastolic function, biomarkers, symptoms, and health status. Heart failure duration <1 year, female sex, higher predischarge blood pressure, and baseline LVEF were independent predictors of LVEF improvement. Mortality and event-free survival rates were lower in patients with heart failure with normalized LVEF (P=0.002). Overall, LVEF increased further at 18-months' follow-up (P<0.001), while LV end-diastolic diameter decreased (P=0.048). However, LVEF worsened (P=0.002) and LV end-diastolic diameter increased (P=0.047) in patients with heart failure with normalized LVEF hospitalized between 6-months' follow-up and 18-months' follow-up. Conclusions Six-month survivors of acute cardiac decompensation for systolic heart failure showed variable LVEF trajectories, with >50\% showing improvements by ≥1 LVEF category. LVEF changes correlated with various parameters, suggesting multilevel reverse remodeling, were predictable from several baseline characteristics, and were associated with clinical outcomes at 18-months' follow-up. Repeat hospitalizations were associated with attenuation of reverse remodeling."},
  language  = {en}
}
@article{LiangBencurovaPsotaetal.2021,
  author    = {Liang, Chunguang and Bencurova, Elena and Psota, Eric and Neurgaonkar, Priya and Prelog, Martina and Scheller, Carsten and Dandekar, Thomas},
  title     = {Population-predicted MHC class II epitope presentation of SARS-CoV-2 structural proteins correlates to the case fatality rates of COVID-19 in different countries},
  series = {International Journal of Molecular Sciences},
  volume    = {22},
  journal   = {International Journal of Molecular Sciences},
  number    = {5},
  issn      = {1422-0067},
  doi       = {10.3390/ijms22052630},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258936},
  year      = {2021},
  abstract  = {We observed substantial differences in predicted Major Histocompatibility Complex II (MHCII) epitope presentation of SARS-CoV-2 proteins for different populations but only minor differences in predicted MHCI epitope presentation. A comparison of this predicted epitope MHC-coverage revealed for the early phase of infection spread (till day 15 after reaching 128 observed infection cases) highly significant negative correlations with the case fatality rate. Specifically, this was observed in different populations for MHC class II presentation of the viral spike protein (p-value: 0.0733 for linear regression), the envelope protein (p-value: 0.023), and the membrane protein (p-value: 0.00053), indicating that the high case fatality rates of COVID-19 observed in some countries seem to be related with poor MHC class II presentation and hence weak adaptive immune response against these viral envelope proteins. Our results highlight the general importance of the SARS-CoV-2 structural proteins in immunological control in early infection spread looking at a global census in various countries and taking case fatality rate into account. Other factors such as health system and control measures become more important after the early spread. Our study should encourage further studies on MHCII alleles as potential risk factors in COVID-19 including assessment of local populations and specific allele distributions.},
  language  = {en}
}
@article{LatifiHolzwarthSkidmoreetal.2021,
  author    = {Latifi, Hooman and Holzwarth, Stefanie and Skidmore, Andrew and Brůna, Josef and Červenka, Jaroslav and Darvishzadeh, Roshanak and Hais, Martin and Heiden, Uta and Homolov{\´a}, Lucie and Krzystek, Peter and Schneider, Thomas and Star{\´y}, Martin and Wang, Tiejun and M{\"u}ller, J{\"o}rg and Heurich, Marco},
  title     = {A laboratory for conceiving Essential Biodiversity Variables (EBVs)—The 'Data pool initiative for the Bohemian Forest Ecosystem'},
  series = {Methods in Ecology and Evolution},
  volume    = {12},
  journal   = {Methods in Ecology and Evolution},
  number    = {11},
  doi       = {10.1111/2041-210X.13695},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-262743},
  pages     = {2073-2083},
  year      = {2021},
  abstract  = {Effects of climate change-induced events on forest ecosystem dynamics of composition, function and structure call for increased long-term, interdisciplinary and integrated research on biodiversity indicators, in particular within strictly protected areas with extensive non-intervention zones. The long-established concept of forest supersites generally relies on long-term funds from national agencies and goes beyond the logistic and financial capabilities of state- or region-wide protected area administrations, universities and research institutes. We introduce the concept of data pools as a smaller-scale, user-driven and reasonable alternative to co-develop remote sensing and forest ecosystem science to validated products, biodiversity indicators and management plans. We demonstrate this concept with the Bohemian Forest Ecosystem Data Pool, which has been established as an interdisciplinary, international data pool within the strictly protected Bavarian Forest and Šumava National Parks and currently comprises 10 active partners. We demonstrate how the structure and impact of the data pool differs from comparable cases. We assessed the international influence and visibility of the data pool with the help of a systematic literature search and a brief analysis of the results. Results primarily suggest an increase in the impact and visibility of published material during the life span of the data pool, with highest visibilities achieved by research conducted on leaf traits, vegetation phenology and 3D-based forest inventory. We conclude that the data pool results in an efficient contribution to the concept of global biodiversity observatory by evolving towards a training platform, functioning as a pool of data and algorithms, directly communicating with management for implementation and providing test fields for feasibility studies on earth observation missions.},
  language  = {en}
}
@article{DandekarBencurovaOsmanogluetal.2021,
  author    = {Dandekar, Thomas and Bencurova, Elena and Osmanoglu, {\"O}zge and Naseem, Muhammad},
  title     = {Klimapflanzen und biologische Wege zu negativen Kohlendioxidemissionen},
  series = {BIOspektrum},
  volume    = {27},
  journal   = {BIOspektrum},
  number    = {7},
  issn      = {1868-6249},
  doi       = {10.1007/s12268-021-1677-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-270067},
  pages     = {769-772},
  year      = {2021},
  abstract  = {Climate plants are critical to prevent global warming as all efforts to save carbon dioxide are too slow and climate disasters on the rise. For best carbon dioxide harvesting we compare algae, trees and crop plants and use metagenomic analysis of environmental samples. We compare different pathways, carbon harvesting potentials of different plants as well as synthetic modifications including carbon dioxide flux balance analysis. For implementation, agriculture and modern forestry are important.},
  language  = {de}
}
@article{MagesShojaaKohletal.2021,
  author    = {Mages, Michelle and Shojaa, Mahdieh and Kohl, Matthias and Stengel, Simon von and Becker, Clemens and Gosch, Markus and Jakob, Franz and Kerschan-Schindl, Katharina and Kladny, Bernd and Kl{\"o}ckner, Nicole and Lange, Uwe and Middeldorf, Stefan and Peters, Stefan and Schoene, Daniel and Sieber, Cornel C. and Tholen, Reina and Thomasius, Friederike E. and Uder, Michael and Kemmler, Wolfgang},
  title     = {Exercise effects on Bone Mineral Density in men},
  series = {Nutrients},
  volume    = {13},
  journal   = {Nutrients},
  number    = {12},
  issn      = {2072-6643},
  doi       = {10.3390/nu13124244},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-250247},
  year      = {2021},
  abstract  = {In contrast to postmenopausal women, evidence for a favorable effect of exercise on Bone Mineral Density (BMD) is still limited for men. This might be due to the paucity of studies, but also to the great variety of participants and study characteristics that may dilute study results. The aim of the present systematic review and meta-analysis was to evaluate the effect of exercise on BMD changes with rational eligibility criteria. A comprehensive search of six electronic databases up to 15 March 2021 was conducted. Briefly, controlled trials ≥6 months that determined changes in areal BMD in men >18 years old, with no apparent diseases or pharmacological therapy that relevantly affect bone metabolism, were included. BMD changes (standardized mean differences: SMD) of the lumbar spine (LS) and femoral neck (FN) were considered as outcomes. Twelve studies with 16 exercise and 12 control groups were identified. The pooled estimate of random-effect analysis was SMD = 0.38, 95\%-CI: 0.14-0.61 and SMD = 0.25, 95\%-CI: 0.00-0.49, for LS and FN, respectively. Heterogeneity between the trials was low-moderate. Funnel plots and rank and regression correlation tests indicate evidence for small study publication bias for LS but not FN-BMD. Subgroup analyses that focus on study length, type of exercise and methodologic quality revealed no significant difference between each of the three categories. In summary, we provided further evidence for a low but significant effect of exercise on BMD in men. However, we are currently unable to give even rough exercise recommendations for male cohorts.},
  language  = {en}
}
@article{VogelBusslerFinnbergetal.2021,
  author    = {Vogel, Sebastian and Bussler, Heinz and Finnberg, Sven and M{\"u}ller, J{\"o}rg and Stengel, Elisa and Thorn, Simon},
  title     = {Diversity and conservation of saproxylic beetles in 42 European tree species: an experimental approach using early successional stages of branches},
  series = {Insect Conservation and Diversity},
  volume    = {14},
  journal   = {Insect Conservation and Diversity},
  number    = {1},
  doi       = {10.1111/icad.12442},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-218401},
  pages     = {132 -- 143},
  year      = {2021},
  abstract  = {Tree species diversity is important to maintain saproxylic beetle diversity in managed forests. Yet, knowledge about the conservational importance of single tree species and implications for forest management and conservation practices are lacking. We exposed freshly cut branch-bundles of 42 tree species, representing tree species native and non-native to Europe, under sun-exposed and shaded conditions for 1 year. Afterwards, communities of saproxylic beetles were reared ex situ for 2 years. We tested for the impact of tree species and sun exposure on alpha-, beta-, and gamma-diversity as well as composition of saproxylic beetle communities. Furthermore, the number of colonised tree species by each saproxylic beetle species was determined. Tree species had a lower impact on saproxylic beetle communities compared to sun exposure. The diversity of saproxylic beetles varied strongly among tree species, with highest alpha- and gamma-diversity found in Quercus petraea. Red-listed saproxylic beetle species occurred ubiquitously among tree species. We found distinct differences in the community composition of broadleaved and coniferous tree species, native and non-native tree species as well as sun-exposed and shaded deadwood. Our study enhances the understanding of the importance of previously understudied and non-native tree species for the diversity of saproxylic beetles. To improve conservation practices for saproxylic beetles and especially red-listed species, we suggest a stronger incorporation of tree species diversity and sun exposure of into forest management strategies, including the enrichment of deadwood from native and with a specific focus on locally rare or silviculturally less important tree species.},
  language  = {en}
}
@article{NjovuSteffanDewenterGebertetal.2021,
  author    = {Njovu, Henry K. and Steffan-Dewenter, Ingolf and Gebert, Friederike and Schellenberger Costa, David and Kleyer, Michael and Wagner, Thomas and Peters, Marcell K.},
  title     = {Plant traits mediate the effects of climate on phytophagous beetle diversity on Mt. Kilimanjaro},
  series = {Ecology},
  volume    = {102},
  journal   = {Ecology},
  number    = {12},
  doi       = {10.1002/ecy.3521},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257343},
  year      = {2021},
  abstract  = {Patterns of insect diversity along elevational gradients are well described in ecology. However, it remains little tested how variation in the quantity, quality, and diversity of food resources influence these patterns. Here we analyzed the direct and indirect effects of climate, food quantity (estimated by net primary productivity), quality (variation in the specific leaf area index, leaf nitrogen to phosphorus and leaf carbon to nitrogen ratio), and food diversity (diversity of leaf traits) on the species richness of phytophagous beetles along the broad elevation and land use gradients of Mt. Kilimanjaro, Tanzania. We sampled beetles at 65 study sites located in both natural and anthropogenic habitats, ranging from 866 to 4,550 m asl. We used path analysis to unravel the direct and indirect effects of predictor variables on species richness. In total, 3,154 phytophagous beetles representing 19 families and 304 morphospecies were collected. We found that the species richness of phytophagous beetles was bimodally distributed along the elevation gradient with peaks at the lowest (˜866 m asl) and upper mid-elevations (˜3,200 m asl) and sharply declined at higher elevations. Path analysis revealed temperature- and climate-driven changes in primary productivity and leaf trait diversity to be the best predictors of changes in the species richness of phytophagous beetles. Species richness increased with increases in mean annual temperature, primary productivity, and with increases in the diversity of leaf traits of local ecosystems. Our study demonstrates that, apart from temperature, the quantity and diversity of food resources play a major role in shaping diversity gradients of phytophagous insects. Drivers of global change, leading to a change of leaf traits and causing reductions in plant diversity and productivity, may consequently reduce the diversity of herbivore assemblages.},
  language  = {en}
}
@article{GerullBrodehl2021,
  author    = {Gerull, Brenda and Brodehl, Andreas},
  title     = {Insights Into Genetics and Pathophysiology of Arrhythmogenic Cardiomyopathy},
  series = {Current Heart Failure Reports},
  volume    = {18},
  journal   = {Current Heart Failure Reports},
  number    = {6},
  issn      = {1546-9549},
  doi       = {10.1007/s11897-021-00532-z},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-269916},
  pages     = {378-390},
  year      = {2021},
  abstract  = {Purpose of Review Arrhythmogenic cardiomyopathy (ACM) is a genetic disease characterized by life-threatening ventricular arrhythmias and sudden cardiac death (SCD) in apparently healthy young adults. Mutations in genes encoding for cellular junctions can be found in about half of the patients. However, disease onset and severity, risk of arrhythmias, and outcome are highly variable and drug-targeted treatment is currently unavailable. Recent Findings This review focuses on advances in clinical risk stratification, genetic etiology, and pathophysiological concepts. The desmosome is the central part of the disease, but other intercalated disc and associated structural proteins not only broaden the genetic spectrum but also provide novel molecular and cellular insights into the pathogenesis of ACM. Signaling pathways and the role of inflammation will be discussed and targets for novel therapeutic approaches outlined. Summary Genetic discoveries and experimental-driven preclinical research contributed significantly to the understanding of ACM towards mutation- and pathway-specific personalized medicine.},
  language  = {en}
}
@article{MaerzKurlbaumRocheLancasteretal.2021,
  author    = {M{\"a}rz, Juliane and Kurlbaum, Max and Roche-Lancaster, Oisin and Deutschbein, Timo and Peitzsch, Mirko and Prehn, Cornelia and Weismann, Dirk and Robledo, Mercedes and Adamski, Jerzy and Fassnacht, Martin and Kunz, Meik and Kroiss, Matthias},
  title     = {Plasma Metabolome Profiling for the Diagnosis of Catecholamine Producing Tumors},
  series = {Frontiers in Endocrinology},
  volume    = {12},
  journal   = {Frontiers in Endocrinology},
  issn      = {1664-2392},
  doi       = {10.3389/fendo.2021.722656},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245710},
  year      = {2021},
  abstract  = {Context Pheochromocytomas and paragangliomas (PPGL) cause catecholamine excess leading to a characteristic clinical phenotype. Intra-individual changes at metabolome level have been described after surgical PPGL removal. The value of metabolomics for the diagnosis of PPGL has not been studied yet. Objective Evaluation of quantitative metabolomics as a diagnostic tool for PPGL. Design Targeted metabolomics by liquid chromatography-tandem mass spectrometry of plasma specimens and statistical modeling using ML-based feature selection approaches in a clinically well characterized cohort study. Patients Prospectively enrolled patients (n=36, 17 female) from the Prospective Monoamine-producing Tumor Study (PMT) with hormonally active PPGL and 36 matched controls in whom PPGL was rigorously excluded. Results Among 188 measured metabolites, only without considering false discovery rate, 4 exhibited statistically significant differences between patients with PPGL and controls (histidine p=0.004, threonine p=0.008, lyso PC a C28:0 p=0.044, sum of hexoses p=0.018). Weak, but significant correlations for histidine, threonine and lyso PC a C28:0 with total urine catecholamine levels were identified. Only the sum of hexoses (reflecting glucose) showed significant correlations with plasma metanephrines. By using ML-based feature selection approaches, we identified diagnostic signatures which all exhibited low accuracy and sensitivity. The best predictive value (sensitivity 87.5\%, accuracy 67.3\%) was obtained by using Gradient Boosting Machine Modelling. Conclusions The diabetogenic effect of catecholamine excess dominates the plasma metabolome in PPGL patients. While curative surgery for PPGL led to normalization of catecholamine-induced alterations of metabolomics in individual patients, plasma metabolomics are not useful for diagnostic purposes, most likely due to inter-individual variability.},
  language  = {en}
}
@article{Trujillo‐VieraEl‐MerahbiSchmidtetal.2021,
  author    = {Trujillo-Viera, Jonathan and El-Merahbi, Rabih and Schmidt, Vanessa and Karwen, Till and Loza-Valdes, Angel and Strohmeyer, Akim and Reuter, Saskia and Noh, Minhee and Wit, Magdalena and Hawro, Izabela and Mocek, Sabine and Fey, Christina and Mayer, Alexander E. and L{\"o}ffler, Mona C. and Wilhelmi, Ilka and Metzger, Marco and Ishikawa, Eri and Yamasaki, Sho and Rau, Monika and Geier, Andreas and Hankir, Mohammed and Seyfried, Florian and Klingenspor, Martin and Sumara, Grzegorz},
  title     = {Protein Kinase D2 drives chylomicron-mediated lipid transport in the intestine and promotes obesity},
  series = {EMBO Molecular Medicine},
  volume    = {13},
  journal   = {EMBO Molecular Medicine},
  number    = {5},
  doi       = {10.15252/emmm.202013548},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239018},
  year      = {2021},
  abstract  = {Lipids are the most energy-dense components of the diet, and their overconsumption promotes obesity and diabetes. Dietary fat content has been linked to the lipid processing activity by the intestine and its overall capacity to absorb triglycerides (TG). However, the signaling cascades driving intestinal lipid absorption in response to elevated dietary fat are largely unknown. Here, we describe an unexpected role of the protein kinase D2 (PKD2) in lipid homeostasis. We demonstrate that PKD2 activity promotes chylomicron-mediated TG transfer in enterocytes. PKD2 increases chylomicron size to enhance the TG secretion on the basolateral side of the mouse and human enterocytes, which is associated with decreased abundance of APOA4. PKD2 activation in intestine also correlates positively with circulating TG in obese human patients. Importantly, deletion, inactivation, or inhibition of PKD2 ameliorates high-fat diet-induced obesity and diabetes and improves gut microbiota profile in mice. Taken together, our findings suggest that PKD2 represents a key signaling node promoting dietary fat absorption and may serve as an attractive target for the treatment of obesity.},
  language  = {en}
}
@article{AboagyeWeberMerdianetal.2021,
  author    = {Aboagye, B. and Weber, T. and Merdian, H. L. and Bartsch, D. and Lesch, K. P. and Waider, J.},
  title     = {Serotonin deficiency induced after brain maturation rescues consequences of early life adversity},
  series = {Scientific Reports},
  volume    = {11},
  journal   = {Scientific Reports},
  number    = {1},
  issn      = {2045-2322},
  doi       = {10.1038/s41598-021-83592-4},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258626},
  year      = {2021},
  abstract  = {Brain serotonin (5-HT) system dysfunction is implicated in depressive disorders and acute depletion of 5-HT precursor tryptophan has frequently been used to model the influence of 5-HT deficiency on emotion regulation. Tamoxifen (TAM)-induced Cre/loxP-mediated inactivation of the tryptophan hydroxylase-2 gene (Tph2) was used to investigate the effects of provoked 5-HT deficiency in adult mice (Tph2 icKO) previously subjected to maternal separation (MS). The efficiency of Tph2 inactivation was validated by immunohistochemistry and HPLC. The impact of Tph2 icKO in interaction with MS stress (Tph2 icKOxMS) on physiological parameters, emotional behavior and expression of 5-HT system-related marker genes were assessed. Tph2 icKO mice displayed a significant reduction in 5-HT immunoreactive cells and 5-HT concentrations in the rostral raphe region within four weeks following TAM treatment. Tph2 icKO and MS differentially affected food and water intake, locomotor activity as well as panic-like escape behavior. Tph2 icKO prevented the adverse effects of MS stress and altered the expression of the genes previously linked to stress and emotionality. In conclusion, an experimental model was established to study the behavioral and neurobiological consequences of 5-HT deficiency in adulthood in interaction with early-life adversity potentially affecting brain development and the pathogenesis of depressive disorders.},
  language  = {en}
}
@article{EiringMcLaughlinMatikondaetal.2021,
  author    = {Eiring, Patrick and McLaughlin, Ryan and Matikonda, Siddharth S. and Han, Zhongying and Grabenhorst, Lennart and Helmerich, Dominic A. and Meub, Mara and Beliu, Gerti and Luciano, Michael and Bandi, Venu and Zijlstra, Niels and Shi, Zhen-Dan and Tarasov, Sergey G. and Swenson, Rolf and Tinnefeld, Philip and Glembockyte, Viktorija and Cordes, Thorben and Sauer, Markus and Schnermann, Martin J.},
  title     = {Targetable conformationally restricted cyanines enable photon-count-limited applications},
  series = {Angewandte Chemie Internationale Edition},
  volume    = {60},
  journal   = {Angewandte Chemie Internationale Edition},
  number    = {51},
  doi       = {10.1002/anie.202109749},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-256559},
  pages     = {26685-26693},
  year      = {2021},
  abstract  = {Cyanine dyes are exceptionally useful probes for a range of fluorescence-based applications, but their photon output can be limited by trans-to-cis photoisomerization. We recently demonstrated that appending a ring system to the pentamethine cyanine ring system improves the quantum yield and extends the fluorescence lifetime. Here, we report an optimized synthesis of persulfonated variants that enable efficient labeling of nucleic acids and proteins. We demonstrate that a bifunctional sulfonated tertiary amide significantly improves the optical properties of the resulting bioconjugates. These new conformationally restricted cyanines are compared to the parent cyanine derivatives in a range of contexts. These include their use in the plasmonic hotspot of a DNA-nanoantenna, in single-molecule F{\"o}rster-resonance energy transfer (FRET) applications, far-red fluorescence-lifetime imaging microscopy (FLIM), and single-molecule localization microscopy (SMLM). These efforts define contexts in which eliminating cyanine isomerization provides meaningful benefits to imaging performance.},
  language  = {en}
}
@article{RamlerFantuzziGeistetal.2021,
  author    = {Ramler, Jaqueline and Fantuzzi, Felipe and Geist, Felix and Hanft, Anna and Braunschweig, Holger and Engels, Bernd and Lichtenberg, Crispin},
  title     = {The dimethylbismuth cation: entry into dative Bi-Bi bonding and unconventional methyl exchange},
  series = {Angewandte Chemie International Edition},
  volume    = {60},
  journal   = {Angewandte Chemie International Edition},
  doi       = {10.1002/anie.202109545},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-256543},
  pages     = {24388-24394},
  year      = {2021},
  abstract  = {The dimethyl bismuth cation, [BiMe\(_2\)(SbF\(_6\))], has been isolated and characterized. Reaction with BiMe\(_3\) allows access to the first compound featuring Bi→Bi donor-acceptor bonding. In solution, dynamic behavior with methyl exchange via an unusual S\(_E\)2 mechanism is observed, underlining the unique properties of bismuth species as soft Lewis acids with the ability to undergo reversible Bi-C bond cleavage.},
  language  = {en}
}
@article{HartrampfLapaSerflingetal.2021,
  author    = {Hartrampf, Philipp E. and Lapa, Constantin and Serfling, Sebastian E. and Buck, Andreas K. and Seitz, Anna Katharina and Meyer, Philipp T. and Ruf, Juri and Michalski, Kerstin},
  title     = {Development of Discordant Hypermetabolic Prostate Cancer Lesions in the Course of [\(^{177}\)Lu]PSMA Radioligand Therapy and Their Possible Influence on Patient Outcome},
  series = {Cancers},
  volume    = {13},
  journal   = {Cancers},
  number    = {17},
  issn      = {2072-6694},
  doi       = {10.3390/cancers13174270},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245168},
  year      = {2021},
  abstract  = {Simple Summary Discordant FDG-positive but PSMA-negative (FDG+/PSMA-) metastases constitute a negative prognostic marker of overall survival in patients undergoing PSMA radioligand therapy (RLT). The aim of this analysis was to investigate the prognostic implications of new FDG+/PSMA- lesions, which occur during or after PSMA RLT. In a retrospective bicentric analysis of 32 patients undergoing PSMA RLT and follow-up dual tracer staging with PSMA and FDG PET/CT, FDG+/PSMA- lesions occurred in a limited number of patients. However, the presence of FDG+/PSMA- lesions appears not to have a significant impact on the OS, but further studies are needed to establish the clinical relevance of such lesions. Abstract Introduction: Positron emission tomography/computer tomography (PET/CT) targeting the prostate-specific membrane antigen (PSMA) is crucial for the assessment of adequate PSMA expression in patients with metastatic castration-resistant prostate cancer (mCRPC) prior to PSMA radioligand therapy (PSMA RLT). Moreover, initial dual tracer staging using combined PSMA and [\(^{18}\)F]fluorodeoxyglucose (FDG) PET/CT provides relevant information, since discordant FDG-positive but PSMA-negative (FDG+/PSMA-) lesions constitute a negative prognostic marker of overall survival (OS) after PSMA RLT. However, little is known about the prognostic implications of dual tracer imaging for restaging at follow-up. The aim of this analysis was to investigate the prognostic implications of new FDG+/PSMA- lesions during or after PSMA RLT. Methods: This bicentric analysis included 32 patients with mCRPC who underwent both FDG and PSMA PET/CT imaging after two or four cycles of PSMA RLT. Patients with FDG+/PSMA- lesions prior to PSMA RLT were not considered. The presence of FDG+/PSMA- lesions was assessed with follow-up dual tracer imaging of patients after two or four cycles of PSMA RLT. Patients with at least one new FDG+/PSMA- lesion were compared to patients without any FDG+/PSMA- lesions at the respective time points. A log-rank analysis was used to assess the difference in OS between subgroups. Results: After two cycles of PSMA RLT, four of 32 patients (13\%) had FDG+/PSMA- metastases. No significant difference in OS was observed (p = 0.807), as compared to patients without FDG+/PSMA- lesions. Follow-up dual tracer imaging after the 4th cycle of PSMA RLT was available in 18 patients. Of these, four patients presented with FDG+/PSMA- findings (n = 2 already after two cycles). After the fourth cycle of PSMA RLT, no significant difference in OS was observed between patients with and without FDG+/PSMA- lesions (p = 0.442). Conclusion: This study shows that FDG+/PSMA- lesions develop in a limited number of patients undergoing PSMA RLT. Further studies are needed to establish the clinical relevance of such lesions.},
  language  = {en}
}
@article{SchorrSchopperRienschetal.2021,
  author    = {Schorr, Fabian and Schopper, Nils and Riensch, Nicolas and Fantuzzi, Felipe and Neder, Marco and Dewhurst, Rian D. and Thiess, Thorsten and Br{\"u}ckner, Tobias and Hammond, Kai and Helten, Holger and Finze, Maik and Braunschweig, Holger},
  title     = {Controlled Synthesis of Oligomers Containing Main-Chain B(sp\(^{2}\))-B(sp\(^{2}\)) Bonds},
  series = {Chemistry—A European Journal},
  volume    = {27},
  journal   = {Chemistry—A European Journal},
  number    = {64},
  doi       = {10.1002/chem.202103366},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257274},
  pages     = {16043-16048},
  year      = {2021},
  abstract  = {A number of novel alkynyl-functionalized diarylbis(dimethylamino)diboranes(4) are prepared by salt metathesis, and the appended alkynyl groups are subjected to hydroboration. Their reactions with monohydroboranes lead to discrete boryl-appended diborane(4) species, while dihydroboranes induce their catenation to oligomeric species, the first known examples of well-characterized macromolecular species with B-B bonds. The oligomeric species were found to comprise up to ten repeat units and are soluble in common organic solvents. Some of the oligomeric species have good air stability and all were characterized by NMR and vibrational spectroscopy and size-exclusion chromatography techniques.},
  language  = {en}
}
@article{AndelovicWinterJakobetal.2021,
  author    = {Andelovic, Kristina and Winter, Patrick and Jakob, Peter Michael and Bauer, Wolfgang Rudolf and Herold, Volker and Zernecke, Alma},
  title     = {Evaluation of plaque characteristics and inflammation using magnetic resonance imaging},
  series = {Biomedicines},
  volume    = {9},
  journal   = {Biomedicines},
  number    = {2},
  issn      = {2227-9059},
  doi       = {10.3390/biomedicines9020185},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228839},
  year      = {2021},
  abstract  = {Atherosclerosis is an inflammatory disease of large and medium-sized arteries, characterized by the growth of atherosclerotic lesions (plaques). These plaques often develop at inner curvatures of arteries, branchpoints, and bifurcations, where the endothelial wall shear stress is low and oscillatory. In conjunction with other processes such as lipid deposition, biomechanical factors lead to local vascular inflammation and plaque growth. There is also evidence that low and oscillatory shear stress contribute to arterial remodeling, entailing a loss in arterial elasticity and, therefore, an increased pulse-wave velocity. Although altered shear stress profiles, elasticity and inflammation are closely intertwined and critical for plaque growth, preclinical and clinical investigations for atherosclerosis mostly focus on the investigation of one of these parameters only due to the experimental limitations. However, cardiovascular magnetic resonance imaging (MRI) has been demonstrated to be a potent tool which can be used to provide insights into a large range of biological parameters in one experimental session. It enables the evaluation of the dynamic process of atherosclerotic lesion formation without the need for harmful radiation. Flow-sensitive MRI provides the assessment of hemodynamic parameters such as wall shear stress and pulse wave velocity which may replace invasive and radiation-based techniques for imaging of the vascular function and the characterization of early plaque development. In combination with inflammation imaging, the analyses and correlations of these parameters could not only significantly advance basic preclinical investigations of atherosclerotic lesion formation and progression, but also the diagnostic clinical evaluation for early identification of high-risk plaques, which are prone to rupture. In this review, we summarize the key applications of magnetic resonance imaging for the evaluation of plaque characteristics through flow sensitive and morphological measurements. The simultaneous measurements of functional and structural parameters will further preclinical research on atherosclerosis and has the potential to fundamentally improve the detection of inflammation and vulnerable plaques in patients.},
  language  = {en}
}
@article{MeyerPetersThieletal.2021,
  author    = {Meyer, Constantin and Peters, Jan Christoph and Thiel, Michael and Rathmann, Joachim and Job, Hubert},
  title     = {Monitoring von Freifl{\"a}cheninanspruchnahme und -versiegelung f{\"u}r eine nachhaltige Raumentwicklung in Bayern},
  series = {Raumforschung und Raumordnung},
  volume    = {79},
  journal   = {Raumforschung und Raumordnung},
  number    = {2},
  doi       = {10.14512/rur.40},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-261622},
  pages     = {172-189},
  year      = {2021},
  abstract  = {Im Freistaat Bayern wird intensiv diskutiert, wie die nach wie vor hohe Freifl{\"a}cheninanspruchnahme f{\"u}r Siedlungs- und Verkehrszwecke reduziert werden kann. Wissenschaftliche Grundlage f{\"u}r Steuerungsans{\"a}tze in der Stadt- und Regionalentwicklung sollte ein verbessertes staatliches Fl{\"a}chenmonitoring sein, welches {\"u}ber die amtliche Statistik und deren Hauptindikator "Siedlungs- und Verkehrsfl{\"a}che" hinaus auch die qualitative Dimension der Fl{\"a}cheninanspruchnahme einbezieht. Daf{\"u}r stellt dieser Beitrag methodische Erweiterungsans{\"a}tze f{\"u}r das Fl{\"a}chenmonitoring vor, welche kleinr{\"a}umige Analysen der Zersiedelung, Freiraumstruktur, Fl{\"a}chenversiegelung und {\"O}kosystemleistungen am Beispiel des Landkreises Rh{\"o}n-Grabfeld aufzeigen. Diese werden im Kontext der Debatte zu Ursachen und Steuerung der Freifl{\"a}cheninanspruchnahme sowie zu aktuellen Anforderungen an das Fl{\"a}chenmonitoring diskutiert. Betont wird deren Bedeutung f{\"u}r das Monitoring rechtlicher Vorgaben und politischer Ziele zur nachhaltigen Fl{\"a}chennutzung.},
  language  = {de}
}
@article{Khaled2021,
  author    = {Khaled, Mohamed Ismail},
  title     = {Nomes of Lower Egypt in the early Fifth Dynasty},
  series = {E\&G Quaternary Science Journal},
  volume    = {70},
  journal   = {E\&G Quaternary Science Journal},
  number    = {1},
  doi       = {10.5194/egqsj-70-19-2021},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-230350},
  pages     = {19-27},
  year      = {2021},
  abstract  = {Having control over the landscape played an important role in the geography and economy of Egypt from the predynastic period onwards. Especially from the beginning of the Old Kingdom, we have evidence that kings created new places (funerary domains) called (centers) and (Ezbah) for the equipment of the building projects of the royal tomb and the funerary cult of the king, as well as to ensure the eternal life of both kings and individuals. Kings used these localities in order to do so, and they oftentimes expanded the border of an existing nome and created new establishments. Consequently, these establishments were united or divided into new nomes. The paper discusses the geography of Lower Egypt and the associated royal domains in the early Fifth Dynasty based on the new discoveries from the causeway of Sahura at Abusir.},
  language  = {en}
}
@article{WeigandRonchiVanselowetal.2021,
  author    = {Weigand, Isabel and Ronchi, Cristina L. and Vanselow, Jens T. and Bathon, Kerstin and Lenz, Kerstin and Herterich, Sabine and Schlosser, Andreas and Kroiss, Matthias and Fassnacht, Martin and Calebiro, Davide and Sbiera, Silviu},
  title     = {PKA Cα subunit mutation triggers caspase-dependent RIIβ subunit degradation via Ser\(^{114}\) phosphorylation},
  series = {Science Advances},
  volume    = {7},
  journal   = {Science Advances},
  number    = {8},
  doi       = {10.1126/sciadv.abd4176},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-270445},
  year      = {2021},
  abstract  = {Mutations in the PRKACA gene are the most frequent cause of cortisol-producing adrenocortical adenomas leading to Cushing's syndrome. PRKACA encodes for the catalytic subunit α of protein kinase A (PKA). We already showed that PRKACA mutations lead to impairment of regulatory (R) subunit binding. Furthermore, PRKACA mutations are associated with reduced RIIβ protein levels; however, the mechanisms leading to reduced RIIβ levels are presently unknown. Here, we investigate the effects of the most frequent PRKACA mutation, L206R, on regulatory subunit stability. We find that Ser\(^{114}\) phosphorylation of RIIβ is required for its degradation, mediated by caspase 16. Last, we show that the resulting reduction in RIIβ protein levels leads to increased cortisol secretion in adrenocortical cells. These findings reveal the molecular mechanisms and pathophysiological relevance of the R subunit degradation caused by PRKACA mutations, adding another dimension to the deregulation of PKA signaling caused by PRKACA mutations in adrenal Cushing's syndrome.},
  language  = {en}
}
@article{BergerRueheSchwarzmannetal.2021,
  author    = {Berger, Sarina M. and R{\"u}he, Jessica and Schwarzmann, Johannes and Phillipps, Alexandra and Richard, Ann-Katrin and Ferger, Matthias and Krummenacher, Ivo and Tumir, Lidija-Marija and Ban, Željka and Crnolatac, Ivo and Majhen, Dragomira and Barišić, Ivan and Piantanida, Ivo and Schleier, Domenik and Griesbeck, Stefanie and Friedrich, Alexandra and Braunschweig, Holger and Marder, Todd B.},
  title     = {Bithiophene-Cored, mono-, bis-, and tris-(Trimethylammonium)-Substituted, bis-Triarylborane Chromophores: Effect of the Number and Position of Charges on Cell Imaging and DNA/RNA Sensing},
  series = {Chemistry—A European Journal},
  volume    = {27},
  journal   = {Chemistry—A European Journal},
  number    = {56},
  doi       = {10.1002/chem.202102308},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-256963},
  pages     = {14057-14072},
  year      = {2021},
  abstract  = {The synthesis, photophysical, and electrochemical properties of selectively mono-, bis- and tris-dimethylamino- and trimethylammonium-substituted bis-triarylborane bithiophene chromophores are presented along with the water solubility and singlet oxygen sensitizing efficiency of the cationic compounds Cat\(^{1+}\), Cat\(^{2+}\), Cat(i)\(^{2+}\), and Cat\(^{3+}\). Comparison with the mono-triarylboranes reveals the large influence of the bridging unit on the properties of the bis-triarylboranes, especially those of the cationic compounds. Based on these preliminary investigations, the interactions of Cat\(^{1+}\), Cat\(^{2+}\), Cat(i)\(^{2+}\), and Cat\(^{3+}\) with DNA, RNA, and DNApore were investigated in buffered solutions. The same compounds were investigated for their ability to enter and localize within organelles of human lung carcinoma (A549) and normal lung (WI38) cells showing that not only the number of charges but also their distribution over the chromophore influences interactions and staining properties.},
  language  = {en}
}
@article{WagnerWetzWiegeringetal.2021,
  author    = {Wagner, Johanna C. and Wetz, Anja and Wiegering, Armin and Lock, Johan F. and L{\"o}b, Stefan and Germer, Christoph-Thomas and Klein, Ingo},
  title     = {Successful surgical closure of infected abdominal wounds following preconditioning with negative pressure wound therapy},
  series = {Langenbeck's Archives of Surgery},
  volume    = {406},
  journal   = {Langenbeck's Archives of Surgery},
  number    = {7},
  issn      = {1435-2451},
  doi       = {10.1007/s00423-021-02221-w},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-267541},
  pages     = {2479-2487},
  year      = {2021},
  abstract  = {Purpose Traditionally, previous wound infection was considered a contraindication to secondary skin closure; however, several case reports describe successful secondary wound closure of wounds "preconditioned" with negative pressure wound therapy (NPWT). Although this has been increasingly applied in daily practice, a systematic analysis of its feasibility has not been published thus far. The aim of this study was to evaluate secondary skin closure in previously infected abdominal wounds following treatment with NPWT. Methods Single-center retrospective analysis of patients with infected abdominal wounds treated with NPWT followed by either secondary skin closure referenced to a group receiving open wound therapy. Endpoints were wound closure rate, wound complications (such as recurrent infection or hernia), and perioperative data (such as duration of NPWT or hospitalization parameters). Results One hundred ninety-eight patients during 2013-2016 received a secondary skin closure after NPWT and were analyzed and referenced to 67 patients in the same period with open wound treatment after NPWT. No significant difference in BMI, chronic immunosuppressive medication, or tobacco use was found between both groups. The mean duration of hospital stay was 30 days with a comparable duration in both patient groups (29 versus 33 days, p = 0.35). Interestingly, only 7.7\% of patients after secondary skin closure developed recurrent surgical site infection and in over 80\% of patients were discharged with closed wounds requiring only minimal outpatient wound care. Conclusion Surgical skin closure following NPWT of infected abdominal wounds is a good and safe alternative to open wound treatment. It prevents lengthy outpatient wound therapy and is expected to result in a higher quality of life for patients and reduce health care costs.},
  language  = {en}
}
@article{FlemmingHankirKusanetal.2021,
  author    = {Flemming, Sven and Hankir, Mohammed K. and Kusan, Simon and Krone, Manuel and Anger, Friedrich and Germer, Christoph-Thomas and Wiegering, Armin},
  title     = {Safety of elective abdominal and vascular surgery during the COVID-19 pandemic: a retrospective single-center study},
  series = {European Journal of Medical Research},
  volume    = {26},
  journal   = {European Journal of Medical Research},
  doi       = {10.1186/s40001-021-00583-x},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-264975},
  year      = {2021},
  abstract  = {Background Patients with coronavirus disease 2019 (COVID-19) who undergo surgery have impaired postoperative outcomes and increased mortality. Consequently, elective and semi-urgent operations on the increasing number of patients severely affected by COVID-19 have been indefinitely postponed.in many countries with unclear implications on disease progression and overall survival. The purpose of this study was to evaluate whether the establishment of a standardized screening program for acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is sufficient to ensure high-quality medical and surgical treatment of COVID-19 and non-COVID-19 patients while minimizing in-hospital SARS-CoV-2 transmission. Methods The screening program comprised polymerase chain reaction (PCR) testing of nasopharyngeal swabs and a standardized questionnaire about potential symptoms for SARS-CoV-2 infection. All elective and emergency patients admitted to the surgical department of a tertiary-care hospital center in Lower Franconia, Germany, between March and May 2020 were included and their characteristics were recorded. Results Out of the study population (n = 657), 509 patients (77.5\%) had at least one risk factor for a potentially severe course of COVID-19 and 164 patients (25\%) were active smokers. The average 7-day incidence in Lower Franconia was 24.0/100,000 during the observation period. Preoperative PCR testing revealed four asymptomatic positive patients out of the 657 tested patients. No postoperative SARS-CoV-2 infection or transmission could be detected. Conclusion The implementation of a standardized preoperative screening program to both COVID-19 and non-COVID-19 patients can ensure high-quality surgical care while minimizing infection risk for healthcare workers and potential in-hospital transmission.},
  language  = {en}
}
@article{BuergerVloetHaberetal.2021,
  author    = {Buerger, Arne and Vloet, Timo D. and Haber, Lisa and Geissler, Julia M.},
  title     = {Third-wave interventions for eating disorders in adolescence - systematic review with meta-analysis},
  series = {Borderline Personality Disorder and Emotion Dysregulation},
  volume    = {8},
  journal   = {Borderline Personality Disorder and Emotion Dysregulation},
  doi       = {10.1186/s40479-021-00158-6},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260545},
  year      = {2021},
  abstract  = {Context: Third-wave therapies have demonstrated efficacy as a treatment option for EDs in adulthood. Data on the suitability for EDs in adolescence are lacking. Objective: To estimate the efficacy of third-wave interventions to reduce ED symptoms in adolescents in randomized controlled trials (RCTs) and uncontrolled studies. Data sources: We systematically reviewed the databases PubMed (1976-January 2021), PsycINFO (1943-January 2021), and the Cochrane database (1995-January 2021) for English-language articles on third-wave therapies. References were screened for further publications of interest. Study selection: RCTs and pre-post studies without control group, comprising patients aged 11-21 years (mean age = 15.6 years) with an ED diagnosis (anorexia nervosa, bulimia nervosa, binge eating disorder, eating disorder not otherwise specified) investigating the efficacy of third-wave psychological interventions were included. Efficacy had to be evaluated according to the Eating Disorder Examination or Eating Disorder Examination-Questionnaire, the Eating Disorder Inventory-2, the Eating Disorder Inventory-3, or the Structured Interview for Anorexic and Bulimic Disorders for DSM-IV and ICD-10. The outcome assessed in the meta-analysis was the EDE total score. Data extraction: Independent extraction of data by two authors according to a pre-specified data extraction sheet and quality indicators. Data synthesis: We identified 1000 studies after removal of duplicates, assessed the full texts of 48 articles for eligibility, and included 12 studies with a total of 487 participants (female 97.3\%/male 2.6\%) in the qualitative synthesis and seven studies in the meta-analysis. Articles predominantly reported uncontrolled pre-post trials of low quality, with only two published RCTs. Treatments focused strongly on dialectical behaviour therapy (n = 11). We found moderate effects of third-wave therapies on EDE total score interview/questionnaire for all EDs (d = - 0.67; z = - 5.53; CI95\% = - 0.83 to - 0.59). Descriptively, the effects appeared to be stronger in patients with BN and BED. Conclusion: At this stage, it is not feasible to draw conclusions regarding the efficacy of third-wave interventions for the treatment of EDs in adolescence due to the low quality of the empirical evidence. Since almost all of the identified studies used DBT, it is unfortunately not possible to assess other third-wave treatments' efficacy.},
  language  = {en}
}
@article{KunzKneisel2021,
  author    = {Kunz, Julius and Kneisel, Christof},
  title     = {Three-dimensional investigation of an open- and a closed-system Pingo in northwestern Canada},
  series = {Permafrost and Periglacial Processes},
  volume    = {32},
  journal   = {Permafrost and Periglacial Processes},
  number    = {4},
  doi       = {10.1002/ppp.2115},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257678},
  pages     = {541-557},
  year      = {2021},
  abstract  = {The present study presents three-dimensional investigations of a hydrostatic pingo in the Mackenzie Delta region and a hydraulic pingo in the Ogilvie Mountains and contributes to a better understanding about the internal structures of the two pingo types. A combined approach using quasi-three-dimensional electrical resistivity tomography, ground-penetrating radar and frost probing allowed a clear delineation of frozen and unfrozen areas in the subsurface. At the hydrostatic pingo a massive ice core as well as a surrounding talik could be detected, but the location of the ice core and the talik differs from previous published assumptions. In contrast to acknowledged theory, at our site the massive ice core is not located in the center of the pingo but at the western edge, whereas the eastern flank is underlain by a talik, which surrounds the massive ice core. At the hydraulic pingo, the expected internal structure could be confirmed and the pathway of upwelling water could also be detected. The combined approach of the applied methods represents the first known three-dimensional geoelectrical investigation of pingos and provides new insights into the internal structure and architecture of the two different pingo types. The chosen approach allows further conclusions on the formation of these permafrost-affected landforms.},
  language  = {en}
}
@article{TolayBuchberger2021,
  author    = {Tolay, Nazife and Buchberger, Alexander},
  title     = {Comparative profiling of stress granule clearance reveals differential contributions of the ubiquitin system},
  series = {Life Science Alliance},
  volume    = {4},
  journal   = {Life Science Alliance},
  number    = {5},
  doi       = {10.26508/lsa.202000927},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259810},
  pages     = {e202000927},
  year      = {2021},
  abstract  = {Stress granules (SGs) are cytoplasmic condensates containing untranslated mRNP complexes. They are induced by various proteotoxic conditions such as heat, oxidative, and osmotic stress. SGs are believed to protect mRNPs from degradation and to enable cells to rapidly resume translation when stress conditions subside. SG dynamics are controlled by various posttranslationalmodifications, but the role of the ubiquitin system has remained controversial. Here, we present a comparative analysis addressing the involvement of the ubiquitin system in SG clearance. Using high-resolution immuno-fluorescence microscopy, we found that ubiquitin associated to varying extent with SGs induced by heat, arsenite, H2O2, sorbitol, or combined puromycin and Hsp70 inhibitor treatment. SG-associated ubiquitin species included K48- and K63-linked conjugates, whereas free ubiquitin was not significantly enriched. Inhibition of the ubiquitin activating enzyme, deubiquitylating enzymes, the 26S proteasome and p97/VCP impaired the clearance of arsenite- and heat-induced SGs, whereas SGs induced by other stress conditions were little affected. Our data underline the differential involvement of the ubiquitin system in SG clearance, a process important to prevent the formation of disease-linked aberrant SGs.},
  language  = {en}
}
@article{AdolfiHerpinMartinezBengocheaetal.2021,
  author    = {Adolfi, Mateus C. and Herpin, Amaury and Martinez-Bengochea, Anabel and Kneitz, Susanne and Regensburger, Martina and Grunwald, David J. and Schartl, Manfred},
  title     = {Crosstalk Between Retinoic Acid and Sex-Related Genes Controls Germ Cell Fate and Gametogenesis in Medaka},
  series = {Frontiers in Cell and Developmental Biology},
  volume    = {8},
  journal   = {Frontiers in Cell and Developmental Biology},
  issn      = {2296-634X},
  doi       = {10.3389/fcell.2020.613497},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-222669},
  year      = {2021},
  abstract  = {Sex determination (SD) is a highly diverse and complex mechanism. In vertebrates, one of the first morphological differences between the sexes is the timing of initiation of the first meiosis, where its initiation occurs first in female and later in male. Thus, SD is intimately related to the responsiveness of the germ cells to undergo meiosis in a sex-specific manner. In some vertebrates, it has been reported that the timing for meiosis entry would be under control of retinoic acid (RA), through activation of Stra8. In this study, we used a fish model species for sex determination and lacking the stra8 gene, the Japanese medaka (Oryzias latipes), to investigate the connection between RA and the sex determination pathway. Exogenous RA treatments act as a stress factor inhibiting germ cell differentiation probably by activation of dmrt1a and amh. Disruption of the RA degrading enzyme gene cyp26a1 induced precocious meiosis and oogenesis in embryos/hatchlings of female and even some males. Transcriptome analyzes of cyp26a1-/-adult gonads revealed upregulation of genes related to germ cell differentiation and meiosis, in both ovaries and testes. Our findings show that germ cells respond to RA in a stra8 independent model species. The responsiveness to RA is conferred by sex-related genes, restricting its action to the sex differentiation period in both sexes.},
  language  = {en}
}
@article{FischhaberFaberBakircietal.2021,
  author    = {Fischhaber, Natalie and Faber, Jessica and Bakirci, Ezgi and Dalton, Paul D. and Budday, Silvia and Villmann, Carmen and Schaefer, Natascha},
  title     = {Spinal Cord Neuronal Network Formation in a 3D Printed Reinforced Matrix-A Model System to Study Disease Mechanisms},
  series = {Advanced Healthcare Materials},
  volume    = {10},
  journal   = {Advanced Healthcare Materials},
  number    = {19},
  doi       = {10.1002/adhm.202100830},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-256353},
  year      = {2021},
  abstract  = {3D cell cultures allow a better mimicry of the biological and mechanical environment of cells in vivo compared to 2D cultures. However, 3D cell cultures have been challenging for ultrasoft tissues such as the brain. The present study uses a microfiber reinforcement approach combining mouse primary spinal cord neurons in Matrigel with melt electrowritten (MEW) frames. Within these 3D constructs, neuronal network development is followed for 21 days in vitro. To evaluate neuronal development in 3D constructs, the maturation of inhibitory glycinergic synapses is analyzed using protein expression, the complex mechanical properties by assessing nonlinearity, conditioning, and stress relaxation, and calcium imaging as readouts. Following adaptation to the 3D matrix-frame, mature inhibitory synapse formation is faster than in 2D demonstrated by a steep increase in glycine receptor expression between days 3 and 10. The 3D expression pattern of marker proteins at the inhibitory synapse and the mechanical properties resemble the situation in native spinal cord tissue. Moreover, 3D spinal cord neuronal networks exhibit intensive neuronal activity after 14 days in culture. The spinal cord cell culture model using ultrasoft matrix reinforced by MEW fibers provides a promising tool to study and understand biomechanical mechanisms in health and disease.},
  language  = {en}
}
@article{SianHulsmannRiederer2021,
  author    = {Sian-Hulsmann, Jeswinder and Riederer, Peter},
  title     = {The nigral coup in Parkinson's Disease by α-synuclein and its associated rebels},
  series = {Cells},
  volume    = {10},
  journal   = {Cells},
  number    = {3},
  issn      = {2073-4409},
  doi       = {10.3390/cells10030598},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-234073},
  year      = {2021},
  abstract  = {The risk of Parkinson's disease increases with age. However, the etiology of the illness remains obscure. It appears highly likely that the neurodegenerative processes involve an array of elements that influence each other. In addition, genetic, endogenous, or exogenous toxins need to be considered as viable partners to the cellular degeneration. There is compelling evidence that indicate the key involvement of modified α-synuclein (Lewy bodies) at the very core of the pathogenesis of the disease. The accumulation of misfolded α-synuclein may be a consequence of some genetic defect or/and a failure of the protein clearance system. Importantly, α-synuclein pathology appears to be a common denominator for many cellular deleterious events such as oxidative stress, mitochondrial dysfunction, dopamine synaptic dysregulation, iron dyshomeostasis, and neuroinflammation. These factors probably employ a common apoptotic/or autophagic route in the final stages to execute cell death. The misfolded α-synuclein inclusions skillfully trigger or navigate these processes and thus amplify the dopamine neuron fatalities. Although the process of neuroinflammation may represent a secondary event, nevertheless, it executes a fundamental role in neurodegeneration. Some viral infections produce parkinsonism and exhibit similar characteristic neuropathological changes such as a modest brain dopamine deficit and α-synuclein pathology. Thus, viral infections may heighten the risk of developing PD. Alternatively, α-synuclein pathology may induce a dysfunctional immune system. Thus, sporadic Parkinson's disease is caused by multifactorial trigger factors and metabolic disturbances, which need to be considered for the development of potential drugs in the disorder.},
  language  = {en}
}
@article{RedlichMartinSteffan‐Dewenter2021,
  author    = {Redlich, Sarah and Martin, Emily A. and Steffan-Dewenter, Ingolf},
  title     = {Sustainable landscape, soil and crop management practices enhance biodiversity and yield in conventional cereal systems},
  series = {Journal of Applied Ecology},
  volume    = {58},
  journal   = {Journal of Applied Ecology},
  number    = {3},
  doi       = {10.1111/1365-2664.13821},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228345},
  pages     = {507 -- 517},
  year      = {2021},
  abstract  = {Input-driven, modern agriculture is commonly associated with large-scale threats to biodiversity, the disruption of ecosystem services and long-term risks to food security and human health. A switch to more sustainable yet highly productive farming practices seems unavoidable. However, an integrative evaluation of targeted management schemes at field and landscape scales is currently lacking. Furthermore, the often-disproportionate influence of soil conditions and agrochemicals on yields may mask the benefits of biodiversity-driven ecosystem services. Here, we used a real-world ecosystem approach to identify sustainable management practices for enhanced functional biodiversity and yield on 28 temperate wheat fields. Using path analysis, we assessed direct and indirect links between soil, crop and landscape management with natural enemies and pests, as well as follow-on effects on yield quantity and quality. A paired-field design with a crossed insecticide-fertilizer experiment allowed us to control for the relative influence of soil characteristics and agrochemical inputs. We demonstrate that biodiversity-enhancing management options such as reduced tillage, crop rotation diversity and small field size can enhance natural enemies without relying on agrochemical inputs. Similarly, we show that in this system controlling pests and weeds by agrochemical means is less relevant than expected for final crop productivity. Synthesis and applications. Our study highlights soil, crop and landscape management practices that can enhance beneficial biodiversity while reducing agrochemical usage and negative environmental impacts of conventional agriculture. The diversification of cropping systems and conservation tillage are practical measures most farmers can implement without productivity losses. Combining local measures with improved landscape management may also strengthen the sustainability and resilience of cropping systems in light of future global change.},
  language  = {en}
}
@article{WyborskiMusiałMrowińskietal.2021,
  author    = {Wyborski, Paweł and Musiał, Anna and Mrowiński, Paweł and Podemski, Paweł and Baumann, Vasilij and Wroński, Piotr and Jabeen, Fauzia and H{\"o}fling, Sven and Sęk, Grzegorz},
  title     = {InP-substrate-based quantum dashes on a DBR as single-photon emitters at the third telecommunication window},
  series = {Materials},
  volume    = {14},
  journal   = {Materials},
  number    = {4},
  issn      = {1996-1944},
  doi       = {10.3390/ma14040759},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228773},
  year      = {2021},
  abstract  = {We investigated emission properties of photonic structures with InAs/InGaAlAs/InP quantum dashes grown by molecular beam epitaxy on a distributed Bragg reflector. In high-spatial-resolution photoluminescence experiment, well-resolved sharp spectral lines are observed and single-photon emission is detected in the third telecommunication window characterized by very low multiphoton events probabilities. The photoluminescence spectra measured on simple photonic structures in the form of cylindrical mesas reveal significant intensity enhancement by a factor of 4 when compared to a planar sample. These results are supported by simulations of the electromagnetic field distribution, which show emission extraction efficiencies even above 18\% for optimized designs. When combined with relatively simple and undemanding fabrication approach, it makes this kind of structures competitive with the existing solutions in that spectral range and prospective in the context of efficient and practical single-photon sources for fiber-based quantum networks applications.},
  language  = {en}
}
@article{BaesslerBrandlMuelleretal.2021,
  author    = {B{\"a}ssler, Claus and Brandl, Roland and M{\"u}ller, J{\"o}rg and Krah, Franz S. and Reinelt, Arthur and Halbwachs, Hans},
  title     = {Global analysis reveals an environmentally driven latitudinal pattern in mushroom size across fungal species},
  series = {Ecology Letters},
  volume    = {24},
  journal   = {Ecology Letters},
  number    = {4},
  doi       = {10.1111/ele.13678},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239808},
  pages     = {658 -- 667},
  year      = {2021},
  abstract  = {Although macroecology is a well-established field, much remains to be learned about the large-scale variation of fungal traits. We conducted a global analysis of mean fruit body size of 59 geographical regions worldwide, comprising 5340 fungal species exploring the response of fruit body size to latitude, resource availability and temperature. The results showed a hump-shaped relationship between mean fruit body size and distance to the equator. Areas with large fruit bodies were characterised by a high seasonality and an intermediate mean temperature. The responses of mutualistic species and saprotrophs were similar. These findings support the resource availability hypothesis, predicting large fruit bodies due to a seasonal resource surplus, and the thermoregulation hypothesis, according to which small fruit bodies offer a strategy to avoid heat and cold stress and therefore occur at temperature extremes. Fruit body size may thus be an adaptive trait driving the large-scale distribution of fungal species.},
  language  = {en}
}
@article{OckermannHeadleyLizioetal.2021,
  author    = {Ockermann, Philipp and Headley, Laura and Lizio, Rosario and Hansmann, Jan},
  title     = {A Review of the Properties of Anthocyanins and Their Influence on Factors Affecting Cardiometabolic and Cognitive Health},
  series = {Nutrients},
  volume    = {13},
  journal   = {Nutrients},
  number    = {8},
  issn      = {2072-6643},
  doi       = {10.3390/nu13082831},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-245116},
  year      = {2021},
  abstract  = {The incidence of cardiovascular and metabolic diseases has increased over the last decades and is an important cause of death worldwide. An upcoming ingredient on the nutraceutical market are anthocyanins, a flavonoid subgroup, abundant mostly in berries and fruits. Epidemiological studies have suggested an association between anthocyanin intake and improved cardiovascular risk, type 2 diabetes and myocardial infarct. Clinical studies using anthocyanins have shown a significant decrease in inflammation markers and oxidative stress, a beneficial effect on vascular function and hyperlipidemia by decreasing low-density lipoprotein and increasing high-density lipoprotein. They have also shown a potential effect on glucose homeostasis and cognitive decline. This review summarizes the effects of anthocyanins in in-vitro, animal and human studies to give an overview of their application in medical prevention or as a dietary supplement.},
  language  = {en}
}
@article{HanftRottschaeferWieprechtetal.2021,
  author    = {Hanft, Anna and Rottsch{\"a}fer, Dennis and Wieprecht, Nele and Geist, Felix and Radacki, Krzysztof and Lichtenberg, Crispin},
  title     = {Aminotroponiminates: Impact of the NO\(_{2}\) Functional Group on Coordination, Isomerisation, and Backbone Substitution},
  series = {Chemistry—A European Journal},
  volume    = {27},
  journal   = {Chemistry—A European Journal},
  number    = {57},
  doi       = {10.1002/chem.202102324},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-256988},
  pages     = {14250-14262},
  year      = {2021},
  abstract  = {Aminotroponiminate (ATI) ligands are a versatile class of redox-active and potentially cooperative ligands with a rich coordination chemistry that have consequently found a wide range of applications in synthesis and catalysis. While backbone substitution of these ligands has been investigated in some detail, the impact of electron-withdrawing groups on the coordination chemistry and reactivity of ATIs has been little investigated. We report here Li, Na, and K salts of an ATI ligand with a nitro-substituent in the backbone. It is demonstrated that the NO2 group actively contributes to the coordination chemistry of these complexes, effectively competing with the N,N-binding pocket as a coordination site. This results in an unprecedented E/Z isomerisation of an ATI imino group and culminates in the isolation of the first "naked" (i. e., without directional bonding to a metal atom) ATI anion. Reactions of sodium ATIs with silver(I) and tritylium salts gave the first N,N-coordinated silver ATI complexes and unprecedented backbone substitution reactions. Analytical techniques applied in this work include multinuclear (VT-)NMR spectroscopy, single-crystal X-ray diffraction analysis, and DFT calculations.},
  language  = {en}
}
@article{KrajkaNaujockPaulyetal.2021,
  author    = {Krajka, Victor and Naujock, Maximilian and Pauly, Martje G. and Stengel, Felix and Meier, Britta and Stanslowsky, Nancy and Klein, Christine and Seibler, Philip and Wegner, Florian and Capetian, Philipp},
  title     = {Ventral Telencephalic Patterning Protocols for Induced Pluripotent Stem Cells},
  series = {Frontiers in Cell and Developmental Biology},
  volume    = {9},
  journal   = {Frontiers in Cell and Developmental Biology},
  issn      = {2296-634X},
  doi       = {10.3389/fcell.2021.716249},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-244607},
  year      = {2021},
  abstract  = {The differentiation of human induced pluripotent stem cells (hiPSCs) into specific cell types for disease modeling and restorative therapies is a key research agenda and offers the possibility to obtain patient-specific cells of interest for a wide range of diseases. Basal forebrain cholinergic neurons (BFCNs) play a particular role in the pathophysiology of Alzheimer's dementia and isolated dystonias. In this work, various directed differentiation protocols based on monolayer neural induction were tested for their effectiveness in promoting a ventral telencephalic phenotype and generating BFCN. Ventralizing factors [i.e., purmorphamine and Sonic hedgehog (SHH)] were applied at different time points, time intervals, and concentrations. In addition, caudal identity was prevented by the use of a small molecule XAV-939 that inhibits the Wnt-pathway. After patterning, gene expression profiles were analyzed by quantitative PCR (qPCR). Rostro-ventral patterning is most effective when initiated simultaneously with neural induction. The most promising combination of patterning factors was 0.5 μM of purmorphamine and 1 μM of XAV-939, which induces the highest expression of transcription factors specific for the medial ganglionic eminence, the source of GABAergic inter- and cholinergic neurons in the telencephalon. Upon maturation of cells, the immune phenotype, as well as electrophysiological properties were investigated showing the presence of marker proteins specific for BFCN (choline acetyltransferase, ISL1, p75, and NKX2.1) and GABAergic neurons. Moreover, a considerable fraction of measured cells displayed mature electrophysiological properties. Synaptic boutons containing the vesicular acetylcholine transporter (VACHT) could be observed in the vicinity of the cells. This work will help to generate basal forebrain interneurons from hiPSCs, providing a promising platform for modeling neurological diseases, such as Alzheimer's disease or Dystonia.},
  language  = {en}
}
@article{WrońskiWyborskiMusiałetal.2021,
  author    = {Wroński, Piotr Andrzej and Wyborski, Paweł and Musiał, Anna and Podemski, Paweł and Sęk, Grzegorz and H{\"o}fling, Sven and Jabeen, Fauzia},
  title     = {Metamorphic Buffer Layer Platform for 1550 nm Single-Photon Sources Grown by MBE on (100) GaAs Substrate},
  series = {Materials},
  volume    = {14},
  journal   = {Materials},
  number    = {18},
  issn      = {1996-1944},
  doi       = {10.3390/ma14185221},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-246145},
  year      = {2021},
  abstract  = {We demonstrate single-photon emission with a low probability of multiphoton events of 5\% in the C-band of telecommunication spectral range of standard silica fibers from molecular beam epitaxy grown (100)-GaAs-based structure with InAs quantum dots (QDs) on a metamorphic buffer layer. For this purpose, we propose and implement graded In content digitally alloyed InGaAs metamorphic buffer layer with maximal In content of 42\% and GaAs/AlAs distributed Bragg reflector underneath to enhance the extraction efficiency of QD emission. The fundamental limit of the emission rate for the investigated structures is 0.5 GHz based on an emission lifetime of 1.95 ns determined from time-resolved photoluminescence. We prove the relevance of a proposed technology platform for the realization of non-classical light sources in the context of fiber-based quantum communication applications.},
  language  = {en}
}
@article{ToyamaWernerRuizBedoyaetal.2021,
  author    = {Toyama, Yoshitaka and Werner, Rudolf A. and Ruiz-Bedoya, Camilo A. and Ordonez, Alvaro A. and Takase, Kei and Lapa, Constantin and Jain, Sanjay K. and Pomper, Martin G. and Rowe, Steven P. and Higuchi, Takahiro},
  title     = {Current and future perspectives on functional molecular imaging in nephro-urology: theranostics on the horizon},
  series = {Theranostics},
  volume    = {11},
  journal   = {Theranostics},
  number    = {12},
  doi       = {10.7150/thno.58682},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260090},
  pages     = {6105-6119},
  year      = {2021},
  abstract  = {In recent years, a paradigm shift from single-photon-emitting radionuclide radiotracers toward positron-emission tomography (PET) radiotracers has occurred in nuclear oncology. Although PET-based molecular imaging of the kidneys is still in its infancy, such a trend has emerged in the field of functional renal radionuclide imaging. Potentially allowing for precise and thorough evaluation of renal radiotracer urodynamics, PET radionuclide imaging has numerous advantages including precise anatomical co-registration with CT images and dynamic three-dimensional imaging capability. In addition, relative to scintigraphic approaches, PET can allow for significantly reduced scan time enabling high-throughput in a busy PET practice and further reduces radiation exposure, which may have a clinical impact in pediatric populations. In recent years, multiple renal PET radiotracers labeled with C-11, Ga-68, and F-18 have been utilized in clinical studies. Beyond providing a precise non-invasive read-out of renal function, such radiotracers may also be used to assess renal inflammation. This manuscript will provide an overview of renal molecular PET imaging and will highlight the transformation of conventional scintigraphy of the kidneys toward novel, high-resolution PET imaging for assessing renal function. In addition, future applications will be introduced, e.g. by transferring the concept of molecular image-guided diagnostics and therapy (theranostics) to the field of nephrology.},
  language  = {en}
}
@article{EidmannEwaldBoelchetal.2021,
  author    = {Eidmann, Annette and Ewald, Andrea and Boelch, Sebastian P. and Rudert, Maximilian and Holzapfel, Boris M. and Stratos, Ioannis},
  title     = {In vitro evaluation of antibacterial efficacy of vancomycin-loaded suture tapes and cerclage wires},
  series = {Journal of Materials Science: Materials in Medicine},
  volume    = {32},
  journal   = {Journal of Materials Science: Materials in Medicine},
  number    = {4},
  doi       = {10.1007/s10856-021-06513-x},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260089},
  pages     = {42},
  year      = {2021},
  abstract  = {Usage of implants containing antibiotic agents has been a common strategy to prevent implant related infections in orthopedic surgery. Unfortunately, most implants with microbial repellent properties are characterized by accessibility limitations during daily clinical practice. Aim of this in vitro study was to investigate whether suture tapes and cerclage wires, which were treated with vancomycin, show a sustainable antibacterial activity. For this purpose, we used 24 stainless steel wire cerclages and 24 ultra-high molecular weight polyethylene and polyester suture tape test bodies. The test bodies were incubated for 30 min. in 100 mg/ml vancomycin solution or equivalent volumes of 0.9\% NaCl. After measuring the initial solution uptake of the test bodies, antibacterial efficacy via agar diffusion test with Staphylococcus aureus and vancomycin elution tests were performed 1, 2, 3, and 6 days after incubation. Vancomycin-loaded tapes as well as vancomycin-loaded cerclage wires demonstrated increased bacterial growth inhibition when compared to NaCl-treated controls. Vancomycin-loaded tapes showed an additional twofold and eightfold increase of bacterial growth inhibition compared to vancomycin-loaded wires at day 1 and 2, respectively. Elution tests at day 1 revealed high levels of vancomycin concentration in vancomycin loaded tapes and wires. Additionally, the concentration in vancomycin loaded tapes was 14-fold higher when compared to vancomycin loaded wires. Incubating suture tapes and cerclage wires in vancomycin solution showed a good short-term antibacterial activity compared to controls. Considering the ease of vancomycin application on suture tapes or wires, our method could represent an attractive therapeutic strategy in biofilm prevention in orthopedic surgery.},
  language  = {en}
}
@article{LehenbergerFohGoettleinetal.2021,
  author    = {Lehenberger, Maximilian and Foh, Nina and G{\"o}ttlein, Axel and Six, Diana and Biedermann, Peter H. W.},
  title     = {Nutrient-Poor Breeding Substrates of Ambrosia Beetles Are Enriched With Biologically Important Elements},
  series = {Frontiers in Microbiology},
  volume    = {12},
  journal   = {Frontiers in Microbiology},
  issn      = {1664-302X},
  doi       = {10.3389/fmicb.2021.664542},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-237602},
  year      = {2021},
  abstract  = {Fungus-farming within galleries in the xylem of trees has evolved independently in at least twelve lineages of weevils (Curculionidae: Scolytinae, Platypodinae) and one lineage of ship-timber beetles (Lymexylidae). Jointly these are termed ambrosia beetles because they actively cultivate nutritional "ambrosia fungi" as their main source of food. The beetles are obligately dependent on their ambrosia fungi as they provide them a broad range of essential nutrients ensuring their survival in an extremely nutrient-poor environment. While xylem is rich in carbon (C) and hydrogen (H), various elements essential for fungal and beetle growth, such as nitrogen (N), phosphorus (P), sulfur (S), potassium (K), calcium (Ca), magnesium (Mg), and manganese (Mn) are extremely low in concentration. Currently it remains untested how both ambrosia beetles and their fungi meet their nutritional requirements in this habitat. Here, we aimed to determine for the first time if galleries of ambrosia beetles are generally enriched with elements that are rare in uncolonized xylem tissue and whether these nutrients are translocated to the galleries from the xylem by the fungal associates. To do so, we examined natural galleries of three ambrosia beetle species from three independently evolved farming lineages, Xyleborinus saxesenii (Scolytinae: Xyleborini), Trypodendron lineatum (Scolytinae: Xyloterini) and Elateroides dermestoides (Lymexylidae), that cultivate unrelated ambrosia fungi in the ascomycete orders Ophiostomatales, Microascales, and Saccharomycetales, respectively. Several elements, in particular Ca, N, P, K, Mg, Mn, and S, were present in high concentrations within the beetles' galleries but available in only very low concentrations in the surrounding xylem. The concentration of elements was generally highest with X. saxesenii, followed by T. lineatum and E. dermestoides, which positively correlates with the degree of sociality and productivity of brood per gallery. We propose that the ambrosia fungal mutualists are translocating essential elements through their hyphae from the xylem to fruiting structures they form on gallery walls. Moreover, the extremely strong enrichment observed suggests recycling of these elements from the feces of the insects, where bacteria and yeasts might play a role.},
  language  = {en}
}
@article{AbboudAsendorfHeinrichetal.2021,
  author    = {Abboud, Tammam and Asendorf, Thomas and Heinrich, Jutta and Faust, Katharina and Krieg, Sandro M. and Seidel, Kathleen and Mielke, Dorothee and Matthies, Cordola and Ringel, Florian and Rohde, Veit and Szel{\´e}nyi, Andrea},
  title     = {Transcranial versus direct cortical stimulation for motor-evoked potentials during resection of supratentorial tumors under general anesthesia (the TRANSEKT-trial): study protocol for a randomized controlled trial},
  series = {Biomedicines},
  volume    = {9},
  journal   = {Biomedicines},
  number    = {10},
  issn      = {2227-9059},
  doi       = {10.3390/biomedicines9101490},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248513},
  year      = {2021},
  abstract  = {Background: Monitoring of motor function during surgery for supratentorial tumors under general anesthesia applies either transcranial electrical stimulation (TES) or direct cortical stimulation (DCS) to elicit motor-evoked potentials. To date, there is no guideline that favor one method over the other. Therefore, we designed this randomized study to compare between both methods regarding the prediction of postoperative motor deficits and extent of tumor resection. Methods: This is a multicenter (six centers in Germany and one in Switzerland), double blind, parallel group, exploratory, randomized controlled clinical trial. Patients without or with mild paresis, who are scheduled for surgical resection of motor-eloquent brain tumors under general anesthesia will be randomized to surgical resection under TES or surgical resection under DCS. The primary endpoint is sensitivity and specificity in prognosis of motor function 7 days after surgery. The main secondary endpoint is the extent of tumor resection. The study is planned to include 120 patients within 2 years. Discussion: The present exploratory study should compare TES and DCS regarding sensitivity and specificity in predicting postoperative motor deficit and extent of tumor resection to calculate the required number of patients in a confirmatory trial to test the superiority of one method over the other.},
  language  = {en}
}
@article{WallaschekReuterSilkenatetal.2021,
  author    = {Wallaschek, Nina and Reuter, Saskia and Silkenat, Sabrina and Wolf, Katharina and Niklas, Carolin and {\"O}zge, Kayisoglu and Aguilar, Carmen and Wiegering, Armin and Germer, Christoph-Thomas and Kircher, Stefan and Rosenwald, Andreas and Shannon-Lowe, Claire and Bartfeld, Sina},
  title     = {Ephrin receptor A2, the epithelial receptor for Epstein-Barr virus entry, is not available for efficient infection in human gastric organoids},
  series = {PLoS Pathogens},
  volume    = {17},
  journal   = {PLoS Pathogens},
  number    = {2},
  doi       = {10.1371/journal.ppat.1009210},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259206},
  pages     = {e1009210},
  year      = {2021},
  abstract  = {Epstein-Barr virus (EBV) is best known for infection of B cells, in which it usually establishes an asymptomatic lifelong infection, but is also associated with the development of multiple B cell lymphomas. EBV also infects epithelial cells and is associated with all cases of undifferentiated nasopharyngeal carcinoma (NPC). EBV is etiologically linked with at least 8\% of gastric cancer (EBVaGC) that comprises a genetically and epigenetically distinct subset of GC. Although we have a very good understanding of B cell entry and lymphomagenesis, the sequence of events leading to EBVaGC remains poorly understood. Recently, ephrin receptor A2 (EPHA2) was proposed as the epithelial cell receptor on human cancer cell lines. Although we confirm some of these results, we demonstrate that EBV does not infect healthy adult stem cell-derived gastric organoids. In matched pairs of normal and cancer-derived organoids from the same patient, EBV only reproducibly infected the cancer organoids. While there was no clear pattern of differential expression between normal and cancer organoids for EPHA2 at the RNA and protein level, the subcellular location of the protein differed markedly. Confocal microscopy showed EPHA2 localization at the cell-cell junctions in primary cells, but not in cancer cell lines. Furthermore, histologic analysis of patient tissue revealed the absence of EBV in healthy epithelium and presence of EBV in epithelial cells from inflamed tissue. These data suggest that the EPHA2 receptor is not accessible to EBV on healthy gastric epithelial cells with intact cell-cell contacts, but either this or another, yet to be identified receptor may become accessible following cellular changes induced by inflammation or transformation, rendering changes in the cellular architecture an essential prerequisite to EBV infection.},
  language  = {en}
}
@article{DrozdSaenkoBranovanetal.2021,
  author    = {Drozd, Valentina and Saenko, Vladimir and Branovan, Daniel I. and Brown, Kate and Yamashita, Shunichi and Reiners, Christoph},
  title     = {A search for causes of rising incidence of differentiated thyroid cancer in children and adolescents after Chernobyl and Fukushima: comparison of the clinical features and their relevance for treatment and prognosis},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {7},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph18073444},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-234247},
  year      = {2021},
  abstract  = {The incidence of differentiated thyroid cancer (DTC) is steadily increasing globally. Epidemiologists usually explain this global upsurge as the result of new diagnostic modalities, screening and overdiagnosis as well as results of lifestyle changes including obesity and comorbidity. However, there is evidence that there is a real increase of DTC incidence worldwide in all age groups. Here, we review studies on pediatric DTC after nuclear accidents in Belarus after Chernobyl and Japan after Fukushima as compared to cohorts without radiation exposure of those two countries. According to the Chernobyl data, radiation-induced DTC may be characterized by a lag time of 4-5 years until detection, a higher incidence in boys, in children of youngest age, extrathyroidal extension and distant metastases. Radiation doses to the thyroid were considerably lower by appr. two orders of magnitude in children and adolescents exposed to Fukushima as compared to Chernobyl. In DTC patients detected after Fukushima by population-based screening, most of those characteristics were not reported, which can be taken as proof against the hypothesis, that radiation is the (main) cause of those tumors. However, roughly 80\% of the Fukushima cases presented with tumor stages higher than microcarcinomas pT1a and 80\% with lymph node metastases pN1. Mortality rates in pediatric DTC patients are generally very low, even at higher tumor stages. However, those cases considered to be clinically relevant should be followed-up carefully after treatment because of the risk of recurrencies which is expected to be not negligible. Considering that thyroid doses from the Fukushima accident were quite small, it makes sense to assess the role of other environmental and lifestyle-related factors in thyroid carcinogenesis. Well-designed studies with assessment of radiation doses from medical procedures and exposure to confounders/modifiers from the environment as e.g., nitrate are required to quantify their combined effect on thyroid cancer risk.},
  language  = {en}
}
@article{MunozCentifantiStickleThomasetal.2021,
  author    = {Mu{\~n}oz Centifanti, Luna C. and Stickle, Timothy R. and Thomas, Jamila and Falc{\´o}n, Amanda and Thomson, Nicholas D. and Gamer, Matthias},
  title     = {Reflexive Gaze Shifts and Fear Recognition Deficits in Children with Callous-Unemotional Traits and Impulsivity/Conduct Problems},
  series = {Brain Sciences},
  volume    = {11},
  journal   = {Brain Sciences},
  number    = {10},
  issn      = {2076-3425},
  doi       = {10.3390/brainsci11101342},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-248536},
  year      = {2021},
  abstract  = {The ability to efficiently recognize the emotions on others' faces is something that most of us take for granted. Children with callous-unemotional (CU) traits and impulsivity/conduct problems (ICP), such as attention-deficit hyperactivity disorder, have been previously described as being "fear blind". This is also associated with looking less at the eye regions of fearful faces, which are highly diagnostic. Previous attempts to intervene into emotion recognition strategies have not had lasting effects on participants' fear recognition abilities. Here we present both (a) additional evidence that there is a two-part causal chain, from personality traits to face recognition strategies using the eyes, then from strategies to rates of recognizing fear in others; and (b) a pilot intervention that had persistent effects for weeks after the end of instruction. Further, the intervention led to more change in those with the highest CU traits. This both clarifies the specific mechanisms linking personality to emotion recognition and shows that the process is fundamentally malleable. It is possible that such training could promote empathy and reduce the rates of antisocial behavior in specific populations in the future.},
  language  = {en}
}
@article{NuhkatBroscheStoezleFeixetal.2021,
  author    = {Nuhkat, Maris and Brosch{\´e}, Mikael and Stoezle-Feix, Sonja and Dietrich, Petra and Hedrich, Rainer and Roelfsema, M. Rob G. and Kollist, Hannes},
  title     = {Rapid depolarization and cytosolic calcium increase go hand-in-hand in mesophyll cells' ozone response},
  series = {New Phytologist},
  volume    = {232},
  journal   = {New Phytologist},
  number    = {4},
  doi       = {10.1111/nph.17711},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259646},
  pages     = {1692-1702},
  year      = {2021},
  abstract  = {Plant stress signalling involves bursts of reactive oxygen species (ROS), which can be mimicked by the application of acute pulses of ozone. Such ozone-pulses inhibit photosynthesis and trigger stomatal closure in a few minutes, but the signalling that underlies these responses remains largely unknown. We measured changes in Arabidopsis thaliana gas exchange after treatment with acute pulses of ozone and set up a system for simultaneous measurement of membrane potential and cytosolic calcium with the fluorescent reporter R-GECO1. We show that within 1 min, prior to stomatal closure, O\(_{3}\) triggered a drop in whole-plant CO\(_{2}\) uptake. Within this early phase, O\(_{3}\) pulses (200-1000 ppb) elicited simultaneous membrane depolarization and cytosolic calcium increase, whereas these pulses had no long-term effect on either stomatal conductance or photosynthesis. In contrast, pulses of 5000 ppb O\(_{3}\) induced cell death, systemic Ca\(^{2+}\) signals and an irreversible drop in stomatal conductance and photosynthetic capacity. We conclude that mesophyll cells respond to ozone in a few seconds by distinct pattern of plasma membrane depolarizations accompanied by an increase in the cytosolic calcium ion (Ca\(^{2+}\)) level. These responses became systemic only at very high ozone concentrations. Thus, plants have rapid mechanism to sense and discriminate the strength of ozone signals.},
  language  = {en}
}
@article{KleinertHillermannJablonkaetal.2021,
  author    = {Kleinert, Evelyn and Hillermann, Nele and Jablonka, Alexandra and Happle, Christine and M{\"u}ller, Frank and Simmenroth, Anne},
  title     = {Prescription of antibiotics in the medical care of newly arrived refugees and migrants},
  series = {Pharmacoepidemiology and Drug Safety},
  volume    = {30},
  journal   = {Pharmacoepidemiology and Drug Safety},
  number    = {8},
  doi       = {10.1002/pds.5254},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-244771},
  pages     = {1074 -- 1083},
  year      = {2021},
  abstract  = {Purpose Unnecessary and inappropriate use of antibiotics is a widespread problem in primary care. However, current data on the care of refugees and migrants in initial reception centers is pending. This article provides data on prescription frequencies of various antibiotics and associated diagnoses. Methods In this retrospective observational study, patient data of 3255 patients with 6376 medical contacts in two initial reception centers in Germany were analyzed. Patient data, collected by chart review, included sociodemographic characteristics, diagnoses, and prescriptions. Antibiotic prescription behavior and corresponding physician-coded diagnoses were analyzed. Results Nineteen percent of all patients in our study received systemic antibiotics during the observation period, with children below the age of 10 years receiving antibiotics most frequently (24\%). The most commonly prescribed antibiotics were penicillins (65\%), macrolides (12\%), and cephalosporins (7\%). The most frequent diagnoses associated with antibiotic prescription were acute tonsillitis (26\%), bronchitis (21\%), infections of the upper respiratory tract (14\%), and urinary tract infections (10\%). In case of acute bronchitis 74\% of the antibiotic prescriptions were probably not indicated. In addition, we found a significant number of inappropriate prescriptions such as amoxicillin for tonsillitis (67\%), and ciprofloxacin and cotrimoxazol for urinary tract infections (49\%). Conclusion Regarding inappropriate prescription of antibiotics in refugee healthcare, this study shows a rate ranging from 8\% for upper respiratory tract infections to 75\% for acute bronchitis. Unnecessary use of antibiotics is a global problem contributing to gratuitous costs, side effects, and antimicrobial resistance. This research contributes to the development of stringent antibiotic stewardship regiments in the particularly vulnerable population of migrants and refugees.},
  language  = {en}
}
@article{BohnertWirthSchmitzetal.2021,
  author    = {Bohnert, Simone and Wirth, Christoph and Schmitz, Werner and Trella, Stefanie and Monoranu, Camelia-Maria and Ondruschka, Benjamin and Bohnert, Michael},
  title     = {Myelin basic protein and neurofilament H in postmortem cerebrospinal fluid as surrogate markers of fatal traumatic brain injury},
  series = {International Journal of Legal Medicine},
  volume    = {135},
  journal   = {International Journal of Legal Medicine},
  number    = {4},
  issn      = {1437-1596},
  doi       = {10.1007/s00414-021-02606-y},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-266929},
  pages     = {1525-1535},
  year      = {2021},
  abstract  = {The aim of this study was to investigate if the biomarkers myelin basic protein (MBP) and neurofilament-H (NF-H) yielded informative value in forensic diagnostics when examining cadaveric cerebrospinal fluid (CSF) biochemically via an enzyme-linked immunosorbent assay (ELISA) and comparing the corresponding brain tissue in fatal traumatic brain injury (TBI) autopsy cases by immunocytochemistry versus immunohistochemistry. In 21 trauma and 19 control cases, CSF was collected semi-sterile after suboccipital puncture and brain specimens after preparation. The CSF MBP (p = 0.006) and NF-H (p = 0.0002) levels after TBI were significantly higher than those in cardiovascular controls. Immunohistochemical staining against MBP and against NF-H was performed on cortical and subcortical samples from also biochemically investigated cases (5 TBI cases/5 controls). Compared to the controls, the TBI cases showed a visually reduced staining reaction against MBP or repeatedly ruptured neurofilaments against NF-H. Immunocytochemical tests showed MBP-positive phagocytizing macrophages in CSF with a survival time of > 24 h. In addition, numerous TMEM119-positive microglia could be detected with different degrees of staining intensity in the CSF of trauma cases. As a result, we were able to document that elevated levels of MBP and NF-H in the CSF should be considered as useful neuroinjury biomarkers of traumatic brain injury.},
  language  = {en}
}
@article{WehRueheHerbertetal.2021,
  author    = {Weh, Manuel and R{\"u}he, Jessica and Herbert, Benedikt and Krause, Ana-Maria and W{\"u}rthner, Frank},
  title     = {Deracemization of Carbohelicenes by a Chiral Perylene Bisimide Cyclophane Template Catalyst},
  series = {Angewandte Chemie International Edition},
  volume    = {60},
  journal   = {Angewandte Chemie International Edition},
  number    = {28},
  doi       = {10.1002/anie.202104591},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-244787},
  pages     = {15323 -- 15327},
  year      = {2021},
  abstract  = {Deracemization describes the conversion of a racemic mixture of a chiral molecule into an enantioenriched mixture or an enantiopure compound without structural modifications. Herein, we report an inherently chiral perylene bisimide (PBI) cyclophane whose chiral pocket is capable of transforming a racemic mixture of [5]-helicene into an enantioenriched mixture with an enantiomeric excess of 66 \%. UV/Vis and fluorescence titration studies reveal this cyclophane host composed of two helically twisted PBI dyes has high binding affinities for the respective homochiral carbohelicene guests, with outstanding binding constants of up to 3.9×10\(^{10}\) m\(^{-1}\) for [4]-helicene. 2D NMR studies and single-crystal X-ray analysis demonstrate that the observed strong and enantioselective binding of homochiral carbohelicenes and the successful template-catalyzed deracemization of [5]-helicene can be explained by the enzyme-like perfect shape complementarity of the macrocyclic supramolecular host.},
  language  = {en}
}
@article{HoffmannEbertHankiretal.2021,
  author    = {Hoffmann, Annett and Ebert, Thomas and Hankir, Mohammed K. and Flehmig, Gesine and Kl{\"o}ting, Nora and Jessnitzer, Beate and L{\"o}ssner, Ulrike and Stumvoll, Michael and Bl{\"u}her, Matthias and Fasshauer, Mathias and T{\"o}njes, Anke and Miehle, Konstanze and Kralisch, Susan},
  title     = {Leptin improves parameters of brown adipose tissue thermogenesis in lipodystrophic mice},
  series = {Nutrients},
  volume    = {13},
  journal   = {Nutrients},
  number    = {8},
  issn      = {2072-6643},
  doi       = {10.3390/nu13082499},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-242787},
  year      = {2021},
  abstract  = {Lipodystrophy syndromes (LD) are a heterogeneous group of very rare congenital or acquired disorders characterized by a generalized or partial lack of adipose tissue. They are strongly associated with severe metabolic dysfunction due to ectopic fat accumulation in the liver and other organs and the dysregulation of several key adipokines, including leptin. Treatment with leptin or its analogues is therefore sufficient to reverse some of the metabolic symptoms of LD in patients and in mouse models through distinct mechanisms. Brown adipose tissue (BAT) thermogenesis has emerged as an important regulator of systemic metabolism in rodents and in humans, but it is poorly understood how leptin impacts BAT in LD. Here, we show in transgenic C57Bl/6 mice overexpressing sterol regulatory element-binding protein 1c in adipose tissue (Tg (aP2-nSREBP1c)), an established model of congenital LD, that daily subcutaneous administration of 3 mg/kg leptin for 6 to 8 weeks increases body temperature without affecting food intake or body weight. This is associated with increased protein expression of the thermogenic molecule uncoupling protein 1 (UCP1) and the sympathetic nerve marker tyrosine hydroxylase (TH) in BAT. These findings suggest that leptin treatment in LD stimulates BAT thermogenesis through sympathetic nerves, which might contribute to some of its metabolic benefits by providing a healthy reservoir for excess circulating nutrients.},
  language  = {en}
}
@article{MalyBrixner2021,
  author    = {Mal{\´y}, Pavel and Brixner, Tobias},
  title     = {Fluorescence-Detected Pump-Probe Spectroscopy},
  series = {Angewandte Chemie International Edition},
  volume    = {60},
  journal   = {Angewandte Chemie International Edition},
  number    = {34},
  doi       = {10.1002/anie.202102901},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-244811},
  pages     = {18867 -- 18875},
  year      = {2021},
  abstract  = {We introduce a new approach to transient spectroscopy, fluorescence-detected pump-probe (F-PP) spectroscopy, that overcomes several limitations of traditional PP. F-PP suppresses excited-state absorption, provides background-free detection, removes artifacts resulting from pump-pulse scattering, from non-resonant solvent response, or from coherent pulse overlap, and allows unique extraction of excited-state dynamics under certain conditions. Despite incoherent detection, time resolution of F-PP is given by the duration of the laser pulses, independent of the fluorescence lifetime. We describe the working principle of F-PP and provide its theoretical description. Then we illustrate specific features of F-PP by direct comparison with PP, theoretically and experimentally. For this purpose, we investigate, with both techniques, a molecular squaraine heterodimer, core-shell CdSe/ZnS quantum dots, and fluorescent protein mCherry. F-PP is broadly applicable to chemical systems in various environments and in different spectral regimes.},
  language  = {en}
}
@article{ZapfFinze2021,
  author    = {Zapf, Ludwig and Finze, Maik},
  title     = {The crystal structure of poly[(μ \(_3\)-imidazolato-κ \(^3\) N:N:N′)(tetrahydrofuran- κ \(^1\) O)lithium(I)], C\(_7\)H\(_{11}\)LiN\(_2\)O},
  series = {Zeitschrift f{\"u}r Kristallographie - New Crystal Structures},
  volume    = {236},
  journal   = {Zeitschrift f{\"u}r Kristallographie - New Crystal Structures},
  number    = {5},
  doi       = {10.1515/ncrs-2021-0192},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260745},
  pages     = {1007-1009},
  year      = {2021},
  abstract  = {C\(_7\)H\(_{11}\)LiN\(_2\)O, monoclinic, P2\(_1\)/c (no. 14), a = 8.9067(1) angstrom, b = 8.6975(1) angstrom, c = 10.2398(1) angstrom, beta = 101.900(3)degrees, V = 770.491(15) angstrom(3), Z = 4, R-gt (F) = 0.0338, wR(ref) (F\(^2\)) = 0.0925, T = 100 K.},
  language  = {en}
}
@article{ZhouBaiMeckeletal.2021,
  author    = {Zhou, Xiang and Bai, Tao and Meckel, Katharina and Song, Jun and Jin, Yu and Kort{\"u}m, Martin K. and Eisele, Hermann and Hou, Xiaohua and Rasche, Leo},
  title     = {COVID-19 infection in patients with multiple myeloma: a German-Chinese experience from W{\"u}rzburg and Wuhan},
  series = {Annals of Hematology},
  volume    = {100},
  journal   = {Annals of Hematology},
  issn      = {0939-5555},
  doi       = {10.1007/s00277-020-04184-2},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-235108},
  pages     = {843-846},
  year      = {2021},
  abstract  = {No abstract available.},
  language  = {en}
}
@article{HeuschmannMontellanoUngethuemetal.2021,
  author    = {Heuschmann, Peter U. and Montellano, Felipe A. and Ungeth{\"u}m, Kathrin and R{\"u}cker, Viktoria and Wiedmann, Silke and Mackenrodt, Daniel and Quilitzsch, Anika and Ludwig, Timo and Kraft, Peter and Albert, Judith and Morbach, Caroline and Frantz, Stefan and St{\"o}rk, Stefan and Haeusler, Karl Georg and Kleinschnitz, Christoph},
  title     = {Prevalence and determinants of systolic and diastolic cardiac dysfunction and heart failure in acute ischemic stroke patients: The SICFAIL study},
  series = {ESC Heart Failure},
  volume    = {8},
  journal   = {ESC Heart Failure},
  number    = {2},
  doi       = {10.1002/ehf2.13145},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-225656},
  pages     = {1117-1129},
  year      = {2021},
  abstract  = {Aims Ischaemic stroke (IS) might induce alterations of cardiac function. Prospective data on frequency of cardiac dysfunction and heart failure (HF) after IS are lacking. We assessed prevalence and determinants of diastolic dysfunction (DD), systolic dysfunction (SD), and HF in patients with acute IS. Methods and results The Stroke-Induced Cardiac FAILure in mice and men (SICFAIL) study is a prospective, hospital-based cohort study. Patients with IS underwent a comprehensive assessment of cardiac function in the acute phase (median 4 days after IS) including clinical examination, standardized transthoracic echocardiography by expert sonographers, and determination of blood-based biomarkers. Information on demographics, lifestyle, risk factors, symptoms suggestive of HF, and medical history was collected by a standardized personal interview. Applying current guidelines, cardiac dysfunction was classified based on echocardiographic criteria into SD (left ventricular ejection fraction < 52\% in men or <54\% in women) and DD (≥3 signs of DD in patients without SD). Clinically overt HF was classified into HF with reduced, mid-range, or preserved ejection fraction. Between January 2014 and February 2017, 696 IS patients were enrolled. Of them, patients with sufficient echocardiographic data on SD were included in the analyses {n = 644 patients [median age 71 years (interquartile range 60-78), 61.5\% male]}. In these patients, full assessment of DD was feasible in 549 patients without SD (94\%). Prevalence of cardiac dysfunction and HF was as follows: SD 9.6\% [95\% confidence interval (CI) 7.6-12.2\%]; DD in patients without SD 23.3\% (95\% CI 20.0-27.0\%); and clinically overt HF 5.4\% (95\% CI 3.9-7.5\%) with subcategories of HF with preserved ejection fraction 4.35\%, HF with mid-range ejection fraction 0.31\%, and HF with reduced ejection fraction 0.78\%. In multivariable analysis, SD and fulfilment of HF criteria were associated with history of coronary heart disease [SD: odds ratio (OR) 3.87, 95\% CI 1.93-7.75, P = 0.0001; HF: OR 2.29, 95\% CI 1.04-5.05, P = 0.0406] and high-sensitive troponin T at baseline (SD: OR 1.78, 95\% CI 1.31-2.42, P = 0.0003; HF: OR 1.66, 95\% CI 1.17-2.33, P = 0.004); DD was associated with older age (OR 1.08, 95\% CI 1.05-1.11, P < 0.0001) and treated hypertension vs. no hypertension (OR 2.84, 95\% CI 1.23-6.54, P = 0.0405). Conclusions A substantial proportion of the study population exhibited subclinical and clinical cardiac dysfunction. SICFAIL provides reliable data on prevalence and determinants of SD, DD, and clinically overt HF in patients with acute IS according to current guidelines, enabling further clarification of its aetiological and prognostic role.},
  language  = {en}
}
@article{HahnLuxenhoferHeltenetal.2021,
  author    = {Hahn, Lukas and Luxenhofer, Robert and Helten, Holger and Forster, Stefan and Fritze, Lars and Polzin, Lando and Keßler, Larissa},
  title     = {ABA Type Amphiphiles with Poly(2-benzhydryl-2-oxazine) Moieties: Synthesis, Characterization and Inverse Thermogelation},
  series = {Macromolecular Chemistry and Physics},
  volume    = {222},
  journal   = {Macromolecular Chemistry and Physics},
  number    = {17},
  doi       = {10.1002/macp.202100114},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-265124},
  year      = {2021},
  abstract  = {Thermoresponsive polymers are frequently involved in the development of materials for various applications. Here, polymers containing poly(2- benzhydryl-2-oxazine) (pBhOzi) repeating units are described for the first time. The homopolymer pBhOzi and an ABA type amphiphile comprising two flanking hydrophilic A blocks of poly(2-methyl-2-oxazoline) (pMeOx) and the hydrophobic aromatic pBhOzi central B block (pMeOx-b-pBhOzi-b-pMeOx) are synthesized and the latter is shown to exhibit inverse thermogelling properties at concentrations of 20 wt.\% in water. This behavior stands in contrast to a homologue ABA amphiphile consisting of a central poly(2-benzhydryl-2-oxazoline) block (pMeOx-b-pBhOx-b-pMeOx). No inverse thermogelling is observed with this polymer even at 25 wt.\%. For 25 wt.\% pMeOx-b-pBhOzi-b-pMeOx, a surprisingly high storage modulus of ≈22 kPa and high values for the yield and flow points of 480 Pa and 1.3 kPa are obtained. Exceeding the yield point, pronounced shear thinning is observed. Interestingly, only little difference between self-assemblies of pMeOx-b-pBhOzi-b-pMeOx and pMeOx-b-pBhOx-b-pMeOx is observed by dynamic light scattering while transmission electron microscopy images suggest that the micelles of pMeOx-b-pBhOzi-b-pMeOx interact through their hydrophilic coronas, which is probably decisive for the gel formation. Overall, this study introduces new building blocks for poly(2-oxazoline) and poly(2-oxazine)-based self-assemblies, but additional studies will be needed to unravel the exact mechanism.},
  language  = {en}
}
@article{KamaliRajendranStadelmannetal.2021,
  author    = {Kamali, Salar and Rajendran, Ranjithkumar and Stadelmann, Christine and Karnati, Srikanth and Rajendran, Vinothkumar and Giraldo-Velasquez, Mario and Berghoff, Martin},
  title     = {Oligodendrocyte-specific deletion of FGFR2 ameliorates MOG\(_{35-55}\)-induced EAE through ERK and Akt signalling},
  series = {Brain Pathology},
  volume    = {31},
  journal   = {Brain Pathology},
  doi       = {10.1111/bpa.12916},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-224354},
  pages     = {297 -- 311},
  year      = {2021},
  abstract  = {Fibroblast growth factors (FGFs) and their receptors (FGFRs) are involved in demyelinating pathologies including multiple sclerosis (MS). In our recent study, oligodendrocyte-specific deletion of FGFR1 resulted in a milder disease course, less inflammation, reduced myelin and axon damage in EAE. The objective of this study was to elucidate the role of oligodendroglial FGFR2 in MOG\(_{35-55}\)-induced EAE. Oligodendrocyte-specific knockout of FGFR2 (Fgfr2\(^{ind-/-}\)) was achieved by application of tamoxifen; EAE was induced using the MOG\(_{35-55}\) peptide. EAE symptoms were monitored over 62 days. Spinal cord tissue was analysed by histology, immunohistochemistry and western blot. Fgfr2\(^{ind-/-}\) mice revealed a milder disease course, less myelin damage and enhanced axonal density. The number of oligodendrocytes was not affected in demyelinated areas. However, protein expression of FGFR2, FGF2 and FGF9 was downregulated in Fgfr2\(^{ind-/-}\) mice. FGF/FGFR dependent signalling proteins were differentially regulated; pAkt was upregulated and pERK was downregulated in Fgfr2\(^{ind-/-}\) mice. The number of CD3(+) T cells, Mac3(+) cells and B220(+) B cells was less in demyelinated lesions of Fgfr2\(^{ind-/-}\) mice. Furthermore, expression of IL-1β, TNF-α and CD200 was less in Fgfr2\(^{ind-/-}\) mice than controls. Fgfr2ind-/- mice showed an upregulation of PLP and downregulation of the remyelination inhibitors SEMA3A and TGF-β expression. These data suggest that cell-specific deletion of FGFR2 in oligodendrocytes has anti-inflammatory and neuroprotective effects accompanied by changes in FGF/FGFR dependent signalling, inflammatory cytokines and expression of remyelination inhibitors. Thus, FGFRs in oligodendrocytes may represent potential targets for the treatment of inflammatory and demyelinating diseases including MS.},
  language  = {en}
}
@article{GromerKiserPauli2021,
  author    = {Gromer, Daniel and Kiser, Dominik P. and Pauli, Paul},
  title     = {Thigmotaxis in a virtual human open field test},
  series = {Scientific Reports},
  volume    = {11},
  journal   = {Scientific Reports},
  doi       = {10.1038/s41598-021-85678-5},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259850},
  pages     = {6670},
  year      = {2021},
  abstract  = {Animal models are used to study neurobiological mechanisms in mental disorders. Although there has been significant progress in the understanding of neurobiological underpinnings of threat-related behaviors and anxiety, little progress was made with regard to new or improved treatments for mental disorders. A possible reason for this lack of success is the unknown predictive and cross-species translational validity of animal models used in preclinical studies. Re-translational approaches, therefore, seek to establish cross-species translational validity by identifying behavioral operations shared across species. To this end, we implemented a human open field test in virtual reality and measured behavioral indices derived from animal studies in three experiments (N=31, N=30, and N=80). In addition, we investigated the associations between anxious traits and such behaviors. Results indicated a strong similarity in behavior across species, i.e., participants in our study-like rodents in animal studies-preferred to stay in the outer region of the open field, as indexed by multiple behavioral parameters. However, correlational analyses did not clearly indicate that these behaviors were a function of anxious traits of participants. We conclude that the realized virtual open field test is able to elicit thigmotaxis and thus demonstrates cross-species validity of this aspect of the test. Modulatory effects of anxiety on human open field behavior should be examined further by incorporating possible threats in the virtual scenario and/or by examining participants with higher anxiety levels or anxiety disorder patients.},
  language  = {en}
}
@article{BeierleinEgorovHarderetal.2021,
  author    = {Beierlein, J. and Egorov, O. A. and Harder, T. H. and Gagel, P. and Emmerling, M. and Schneider, C. and H{\"o}fling, S. and Peschel, U. and Klembt, S.},
  title     = {Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array},
  series = {Advanced Optical Materials},
  volume    = {9},
  journal   = {Advanced Optical Materials},
  number    = {13},
  doi       = {10.1002/adom.202100126},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239814},
  year      = {2021},
  abstract  = {Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. Here, the authors report on Bloch oscillations of hybrid light-matter particles, called exciton-polaritons (polaritons), being confined in an array of coupled microcavity waveguides. To this end, the waveguide widths and their mutual couplings are carefully designed such that a constant energy gradient is induced perpendicular to the direction of motion of the propagating polaritons. This technique allows us to directly observe and study Bloch oscillations in real- and momentum-space. Furthermore, the experimental findings are supported by numerical simulations based on a modified Gross-Pitaevskii approach. This work provides an important transfer of basic concepts of quantum mechanics to integrated solid state devices, using quantum fluids of light.},
  language  = {en}
}
@article{KimpelBedroseMegerleetal.2021,
  author    = {Kimpel, Otilia and Bedrose, Sara and Megerle, Felix and Berruti, Alfredo and Terzolo, Massimo and Kroiss, Matthias and Mai, Knut and Dekkers, Olaf M. and Habra, Mouhammed Amir and Fassnacht, Martin},
  title     = {Adjuvant platinum-based chemotherapy in radically resected adrenocortical carcinoma: a cohort study},
  series = {British Journal of Cancer},
  volume    = {125},
  journal   = {British Journal of Cancer},
  number    = {9},
  issn      = {1532-1827},
  doi       = {10.1038/s41416-021-01513-8},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-273000},
  pages     = {1233-1238},
  year      = {2021},
  abstract  = {Background After radical resection, patients with adrenocortical carcinoma (ACC) frequently experience recurrence and, therefore, effective adjuvant treatment is urgently needed. The aim of the study was to investigate the role of adjuvant platinum-based therapy. Methods In this retrospective multicentre cohort study, we identified patients treated with adjuvant platinum-based chemotherapy after radical resection and compared them with patients without adjuvant chemotherapy. Recurrence-free and overall survival (RFS/OS) were investigated in a matched group analysis and by applying a propensity score matching using the full control cohort (n = 268). For both approaches, we accounted for immortal time bias. Results Of the 31 patients in the platinum cohort (R0 n = 25, RX n = 4, R1 n = 2; ENSAT Stage II n = 11, III n = 16, IV n = 4, median Ki67 30\%, mitotane n = 28), 14 experienced recurrence compared to 29 of 31 matched controls (median RFS after the landmark at 3 months 17.3 vs. 7.3 months; adjusted HR 0.19 (95\% CI 0.09-0.42; P < 0.001). Using propensity score matching, the HR for RFS was 0.45 (0.29-0.89, P = 0.021) and for OS 0.25 (0.09-0.69; P = 0.007). Conclusions Our study provides the first evidence that adjuvant platinum-based chemotherapy may be associated with prolonged recurrence-free and overall survival in patients with ACC and a very high risk for recurrence.},
  language  = {en}
}
@article{JanzZinkCirnuetal.2021,
  author    = {Janz, Anna and Zink, Miriam and Cirnu, Alexandra and Hartleb, Annika and Albrecht, Christina and Rost, Simone and Klopocki, Eva and G{\"u}nther, Katharina and Edenhofer, Frank and Erg{\"u}n, S{\"u}leyman and Gerull, Brenda},
  title     = {CRISPR/Cas9-edited PKP2 knock-out (JMUi001-A-2) and DSG2 knock-out (JMUi001-A-3) iPSC lines as an isogenic human model system for arrhythmogenic cardiomyopathy (ACM)},
  series = {Stem Cell Research},
  volume    = {53},
  journal   = {Stem Cell Research},
  doi       = {10.1016/j.scr.2021.102256},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-259846},
  pages     = {102256},
  year      = {2021},
  abstract  = {Arrhythmogenic cardiomyopathy (ACM) is characterized by fibro-fatty replacement of the myocardium, heart failure and life-threatening ventricular arrhythmias. Causal mutations were identified in genes encoding for proteins of the desmosomes, predominantly plakophilin-2 (PKP2) and desmoglein-2 (DSG2). We generated gene-edited knock-out iPSC lines for PKP2 (JMUi001-A-2) and DSG2 (JMUi001-A-3) using the CRISPR/Cas9 system in a healthy control iPSC background (JMUi001A). Stem cell-like morphology, robust expression of pluripotency markers, embryoid body formation and normal karyotypes confirmed the generation of high quality iPSCs to provide a novel isogenic human in vitro model system mimicking ACM when differentiated into cardiomyocytes.},
  language  = {en}
}
@article{GraserLiedtkeJakob2021,
  author    = {Graser, Stephanie and Liedtke, Daniel and Jakob, Franz},
  title     = {TNAP as a new player in chronic inflammatory conditions and metabolism},
  series = {International Journal of Molecular Sciences},
  volume    = {22},
  journal   = {International Journal of Molecular Sciences},
  number    = {2},
  issn      = {1422-0067},
  doi       = {10.3390/ijms22020919},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258888},
  year      = {2021},
  abstract  = {This review summarizes important information on the ectoenzyme tissue-nonspecific alkaline phosphatase (TNAP) and gives a brief insight into the symptoms, diagnostics, and treatment of the rare disease Hypophosphatasia (HPP), which is resulting from mutations in the TNAP encoding ALPL gene. We emphasize the role of TNAP beyond its well-known contribution to mineralization processes. Therefore, above all, the impact of the enzyme on central molecular processes in the nervous system and on inflammation is presented here.},
  language  = {en}
}
@article{ReichardtKrugBornsteinetal.2021,
  author    = {Reichardt, Elisabeth and Krug, Ralf and Bornstein, Michael M. and Tomasch, J{\"u}rgen and Verna, Carlalberta and Krastl, Gabriel},
  title     = {Orthodontic forced eruption of permanent anterior teeth with subgingival fractures: a systematic review},
  series = {International Journal of Environmental Research and Public Health},
  volume    = {18},
  journal   = {International Journal of Environmental Research and Public Health},
  number    = {23},
  issn      = {1660-4601},
  doi       = {10.3390/ijerph182312580},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-250192},
  year      = {2021},
  abstract  = {(1) Background: To assess orthodontic forced eruption (OFE) as a pre-restorative procedure for non-restorable permanent teeth with subgingival dental hard tissue defects after dental trauma. (2) Methods: A systematic electronic search of three databases, namely, MEDLINE, Cochrane Library, and EMBASE, revealed a total of 2757 eligible publications. Randomized controlled clinical trials (RCT), retro- and prospective clinical studies, or case series (with a minimum of three patients) were reviewed. (3) Results: Thirteen full-text papers were included: one RCT, one prospective clinical trial, two retrospective cohort studies, and nine case series. Within case series, statistical significance between age and cause of fracture (p < 0.03) was determined. The mean extrusion rate of OFE was 1.5 mm a week within a four to six weeks treatment period followed by retention. Three OFE protocols for maxillary single teeth are available: 1. OFE without migration of gingiva and alveolar bone, 2. OFE with gingival migration and slight alveolar bone migration, and 3. OFE with migration of both gingiva and alveolar bone. (4) Conclusions: The current state of the evidence suggests that OFE is a feasible pre-treatment option for non-restorable permanent teeth. OFE can promote the migration of tooth surrounding hard and soft tissues in the esthetic zone. Root resorption does not seem to be a relevant side effect of OFE.},
  language  = {en}
}
@article{BorgesLinkEngstleretal.2021,
  author    = {Borges, Alyssa R. and Link, Fabian and Engstler, Markus and Jones, Nicola G.},
  title     = {The Glycosylphosphatidylinositol Anchor: A Linchpin for Cell Surface Versatility of Trypanosomatids},
  series = {Frontiers in Cell and Developmental Biology},
  volume    = {9},
  journal   = {Frontiers in Cell and Developmental Biology},
  issn      = {2296-634X},
  doi       = {10.3389/fcell.2021.720536},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-249253},
  year      = {2021},
  abstract  = {The use of glycosylphosphatidylinositol (GPI) to anchor proteins to the cell surface is widespread among eukaryotes. The GPI-anchor is covalently attached to the C-terminus of a protein and mediates the protein's attachment to the outer leaflet of the lipid bilayer. GPI-anchored proteins have a wide range of functions, including acting as receptors, transporters, and adhesion molecules. In unicellular eukaryotic parasites, abundantly expressed GPI-anchored proteins are major virulence factors, which support infection and survival within distinct host environments. While, for example, the variant surface glycoprotein (VSG) is the major component of the cell surface of the bloodstream form of African trypanosomes, procyclin is the most abundant protein of the procyclic form which is found in the invertebrate host, the tsetse fly vector. Trypanosoma cruzi, on the other hand, expresses a variety of GPI-anchored molecules on their cell surface, such as mucins, that interact with their hosts. The latter is also true for Leishmania, which use GPI anchors to display, amongst others, lipophosphoglycans on their surface. Clearly, GPI-anchoring is a common feature in trypanosomatids and the fact that it has been maintained throughout eukaryote evolution indicates its adaptive value. Here, we explore and discuss GPI anchors as universal evolutionary building blocks that support the great variety of surface molecules of trypanosomatids.},
  language  = {en}
}
@article{EisenreichRudelHeesemannetal.2021,
  author    = {Eisenreich, Wolfgang and Rudel, Thomas and Heesemann, J{\"u}rgen and Goebel, Werner},
  title     = {Persistence of Intracellular Bacterial Pathogens—With a Focus on the Metabolic Perspective},
  series = {Frontiers in Cellular and Infection Microbiology},
  volume    = {10},
  journal   = {Frontiers in Cellular and Infection Microbiology},
  issn      = {2235-2988},
  doi       = {10.3389/fcimb.2020.615450},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-222348},
  year      = {2021},
  abstract  = {Persistence has evolved as a potent survival strategy to overcome adverse environmental conditions. This capability is common to almost all bacteria, including all human bacterial pathogens and likely connected to chronic infections caused by some of these pathogens. Although the majority of a bacterial cell population will be killed by the particular stressors, like antibiotics, oxygen and nitrogen radicals, nutrient starvation and others, a varying subpopulation (termed persisters) will withstand the stress situation and will be able to revive once the stress is removed. Several factors and pathways have been identified in the past that apparently favor the formation of persistence, such as various toxin/antitoxin modules or stringent response together with the alarmone (p)ppGpp. However, persistence can occur stochastically in few cells even of stress-free bacterial populations. Growth of these cells could then be induced by the stress conditions. In this review, we focus on the persister formation of human intracellular bacterial pathogens, some of which belong to the most successful persister producers but lack some or even all of the assumed persistence-triggering factors and pathways. We propose a mechanism for the persister formation of these bacterial pathogens which is based on their specific intracellular bipartite metabolism. We postulate that this mode of metabolism ultimately leads, under certain starvation conditions, to the stalling of DNA replication initiation which may be causative for the persister state.},
  language  = {en}
}
@article{GrevingRichter2021,
  author    = {Greving, Carla Elisabeth and Richter, Tobias},
  title     = {Beyond the Distributed Practice Effect: Is Distributed Learning Also Effective for Learning With Non-repeated Text Materials?},
  series = {Frontiers in Psychology},
  volume    = {12},
  journal   = {Frontiers in Psychology},
  issn      = {1664-1078},
  doi       = {10.3389/fpsyg.2021.685245},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-247944},
  year      = {2021},
  abstract  = {Distributed learning is often recommended as a general learning strategy, but previous research has established its benefits mainly for learning with repeated materials. In two experiments, we investigated distributed learning with complementary text materials. 77 (Experiment 1) and 130 (Experiment 2) seventh graders read two texts, massed vs. distributed, by 1 week (Experiment 1) or 15 min (Experiment 2). Learning outcomes were measured immediately and 1 week later and metacognitive judgments of learning were assessed. In Experiment 1, distributed learning was perceived as more difficult than massed learning. In both experiments, massed learning led to better outcomes immediately after learning but learning outcomes were lower after 1 week. No such decrease occurred for distributed learning, yielding similar outcomes for massed and distributed learning after 1 week. In sum, no benefits of distributed learning vs. massed learning were found, but distributed learning might lower the decrease in learning outcomes over time.},
  language  = {en}
}
@article{GesslerLehmannBoeseletal.2021,
  author    = {Gessler, Florian and Lehmann, Felix and B{\"o}sel, Julian and Fuhrer, Hannah and Neugebauer, Hermann and Wartenberg, Katja E. and Wolf, Stefan and Bernstock, Joshua D. and Niesen, Wolf-Dirk and Schuss, Patrick},
  title     = {Triage and Allocation of Neurocritical Care Resources During the COVID 19 Pandemic - A National Survey},
  series = {Frontiers in Neurology},
  volume    = {11},
  journal   = {Frontiers in Neurology},
  issn      = {1664-2295},
  doi       = {10.3389/fneur.2020.609227},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-221593},
  year      = {2021},
  abstract  = {Objective: In light of the ongoing COVID-19 pandemic and the associated hospitalization of an overwhelming number of ventilator-dependent patients, medical and/or ethical patient triage paradigms have become essential. While guidelines on the allocation of scarce resources do exist, such work within the subdisciplines of intensive care (e.g., neurocritical care) remains limited. Methods: A 16-item questionnaire was developed that sought to explore/quantify the expert opinions of German neurointensivists with regard to triage decisions. The anonymous survey was conducted via a web-based platform and in total, 96 members of the Initiative of German Neurointensive Trial Engagement (IGNITE)-study group were contacted via e-mail. The IGNITE consortium consists of an interdisciplinary panel of specialists with expertise in neuro-critical care (i.e., anesthetists, neurologists and neurosurgeons). Results: Fifty members of the IGNITE consortium responded to the questionnaire; in total the respondents were in charge of more than 500 Neuro ICU beds throughout Germany. Common determinants reported which affected triage decisions included known patient wishes (98\%), the state of health before admission (96\%), SOFA-score (85\%) and patient age (69\%). Interestingly, other principles of allocation, such as a treatment of "youngest first" (61\%) and members of the healthcare sector (50\%) were also noted. While these were the most accepted parameters affecting the triage of patients, a "first-come, first-served" principle appeared to be more accepted than a lottery for the allocation of ICU beds which contradicts much of what has been reported within the literature. The respondents also felt that at least one neurointensivist should serve on any interdisciplinary triage team. Conclusions: The data gathered in the context of this survey reveal the estimation/perception of triage algorithms among neurointensive care specialists facing COVID-19. Further, it is apparent that German neurointensivists strongly feel that they should be involved in any triage decisions at an institutional level given the unique resources needed to treat patients within the Neuro ICU.},
  language  = {en}
}
@article{SteinYeo2021,
  author    = {Stein, Jan-Philipp and Yeo, Jiyeon},
  title     = {Investigating meal-concurrent media use: Social and dispositional predictors, intercultural differences, and the novel media phenomenon of "mukbang" eating broadcasts},
  series = {Human Behavior and Emerging Technologies},
  volume    = {3},
  journal   = {Human Behavior and Emerging Technologies},
  number    = {5},
  doi       = {10.1002/hbe2.306},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-257482},
  pages     = {956-968},
  year      = {2021},
  abstract  = {Meal-concurrent media use has been linked to several problematic outcomes, including higher caloric intake and an increased risk for obesity. Nevertheless, the sociocultural and dispositional predictors of using media while eating are not yet well-understood, including potential cross-cultural differences. Inspired by the recent emergence of a new food-related media phenomenon called "mukbang"—digital eating broadcasts that have become immensely popular throughout East and Southeast Asia—we inquire 296 participants from two cultures (Germany and South Korea) about their meal-concurrent media use. Our results suggest that South Koreans tend to use media more frequently during meals than Germans, especially for social purposes. Meanwhile, younger age only predicts meal-concurrent media use in the German sample. Apart from that, however, many other examined predictors (e.g., gender, living situation, body-esteem, the Big Five) remain statistically insignificant, indicating notable universality for the behavior in question. In the second part of our study, we then put special focus on the emerging mukbang trend and conduct a theory-driven exploration of its gratifications. Doing so, we find that participants' parasocial and social experiences during eating broadcasts significantly predict their enjoyment of the genre.},
  language  = {en}
}
@article{StanleyUllmannLangeAthinodorou2021,
  author    = {Stanley, Jean-Daniel and Ullmann, Tobias and Lange-Athinodorou, Eva},
  title     = {Holocene aridity-induced interruptions of human activity along a fluvial channel in Egypt's northern delta},
  series = {Quaternary},
  volume    = {4},
  journal   = {Quaternary},
  number    = {4},
  issn      = {2571-550X},
  doi       = {10.3390/quat4040039},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-250285},
  year      = {2021},
  abstract  = {Geoarchaeological information presented here pertains to a subsidiary Nile channel that once flowed west of the main Sebennitic distributary and discharged its water and sediments at Egypt's then north-central deltaic coast. Periodical paleoclimatic episodes during the later Middle and Upper Holocene included decreased rainfall and increased aridity that reduced the Nile's flow levels and thus likely disrupted nautical transport and anthropogenic activity along this channel. Such changes in this deltaic sector, positioned adjacent to the Levantine Basin in the Eastern Mediterranean, can be attributed to climatic shifts triggered as far as the North Atlantic to the west, and African highland source areas of the Egyptian Nile to the south. Of special interest in a study core recovered along the channel are several sediment sequences without anthropogenic material that are interbedded between strata comprising numerous potsherds. The former are interpreted here as markers of increased regional aridity and reduced Nile flow which could have periodically disrupted the regional distribution of goods and nautical activities. Such times occurred ~5000 years B.P., ~4200-4000 years B.P., ~3200-2800 years B.P., ~2300-2200 years B.P., and more recently. Periods comparable to these are also identified by altered proportions of pollen, isotopic and compositional components in different radiocarbon-dated Holocene cores recovered elsewhere in the Nile delta, the Levantine region to the east and north of Egypt, and in the Faiyum depression south of the delta.},
  language  = {en}
}
@article{MieczkowskiSteinmetzgerBessietal.2021,
  author    = {Mieczkowski, Mateusz and Steinmetzger, Christian and Bessi, Irene and Lenz, Ann-Kathrin and Schmiedel, Alexander and Holzapfel, Marco and Lambert, Christoph and Pena, Vladimir and H{\"o}bartner, Claudia},
  title     = {Large Stokes shift fluorescence activation in an RNA aptamer by intermolecular proton transfer to guanine},
  series = {Nature Communications},
  volume    = {12},
  journal   = {Nature Communications},
  doi       = {10.1038/s41467-021-23932-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-270274},
  year      = {2021},
  abstract  = {Fluorogenic RNA aptamers are synthetic functional RNAs that specifically bind and activate conditional fluorophores. The Chili RNA aptamer mimics large Stokes shift fluorescent proteins and exhibits high affinity for 3,5-dimethoxy-4-hydroxybenzylidene imidazolone (DMHBI) derivatives to elicit green or red fluorescence emission. Here, we elucidate the structural and mechanistic basis of fluorescence activation by crystallography and time-resolved optical spectroscopy. Two co-crystal structures of the Chili RNA with positively charged DMHBO+ and DMHBI+ ligands revealed a G-quadruplex and a trans-sugar-sugar edge G:G base pair that immobilize the ligand by π-π stacking. A Watson-Crick G:C base pair in the fluorophore binding site establishes a short hydrogen bond between the N7 of guanine and the phenolic OH of the ligand. Ultrafast excited state proton transfer (ESPT) from the neutral chromophore to the RNA was found with a time constant of 130 fs and revealed the mode of action of the large Stokes shift fluorogenic RNA aptamer.},
  language  = {en}
}
@article{OthmanFathyBekhitetal.2021,
  author    = {Othman, Eman M. and Fathy, Moustafa and Bekhit, Amany Abdlrehim and Abdel-Razik, Abdel-Razik H. and Jamal, Arshad and Nazzal, Yousef and Shams, Shabana and Dandekar, Thomas and Naseem, Muhammad},
  title     = {Modulatory and toxicological perspectives on the effects of the small molecule kinetin},
  series = {Molecules},
  volume    = {26},
  journal   = {Molecules},
  number    = {3},
  issn      = {1420-3049},
  doi       = {10.3390/molecules26030670},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-223064},
  year      = {2021},
  abstract  = {Plant hormones are small regulatory molecules that exert pharmacological actions in mammalian cells such as anti-oxidative and pro-metabolic effects. Kinetin belongs to the group of plant hormones cytokinin and has been associated with modulatory functions in mammalian cells. The mammalian adenosine receptor (A2a-R) is known to modulate multiple physiological responses in animal cells. Here, we describe that kinetin binds to the adenosine receptor (A2a-R) through the Asn253 residue in an adenosine dependent manner. To harness the beneficial effects of kinetin for future human use, we assess its acute toxicity by analyzing different biochemical and histological markers in rats. Kinetin at a dose below 1 mg/kg had no adverse effects on the serum level of glucose or on the activity of serum alanine transaminase (ALT) or aspartate aminotransferase (AST) enzymes in the kinetin treated rats. Whereas, creatinine levels increased after a kinetin treatment at a dose of 0.5 mg/kg. Furthermore, 5 mg/kg treated kinetin rats showed normal renal corpuscles, but a mild degeneration was observed in the renal glomeruli and renal tubules, as well as few degenerated hepatocytes were also observed in the liver. Kinetin doses below 5 mg/kg did not show any localized toxicity in the liver and kidney tissues. In addition to unraveling the binding interaction between kinetin and A2a-R, our findings suggest safe dose limits for the future use of kinetin as a therapeutic and modulatory agent against various pathophysiological conditions.},
  language  = {en}
}
@article{WengHeidenreichMetzetal.2021,
  author    = {Weng, Andreas M. and Heidenreich, Julius F. and Metz, Corona and Veldhoen, Simon and Bley, Thorsten A. and Wech, Tobias},
  title     = {Deep learning-based segmentation of the lung in MR-images acquired by a stack-of-spirals trajectory at ultra-short echo-times},
  series = {BMC Medical Imaging},
  volume    = {21},
  journal   = {BMC Medical Imaging},
  doi       = {10.1186/s12880-021-00608-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260520},
  year      = {2021},
  abstract  = {Background Functional lung MRI techniques are usually associated with time-consuming post-processing, where manual lung segmentation represents the most cumbersome part. The aim of this study was to investigate whether deep learning-based segmentation of lung images which were scanned by a fast UTE sequence exploiting the stack-of-spirals trajectory can provide sufficiently good accuracy for the calculation of functional parameters. Methods In this study, lung images were acquired in 20 patients suffering from cystic fibrosis (CF) and 33 healthy volunteers, by a fast UTE sequence with a stack-of-spirals trajectory and a minimum echo-time of 0.05 ms. A convolutional neural network was then trained for semantic lung segmentation using 17,713 2D coronal slices, each paired with a label obtained from manual segmentation. Subsequently, the network was applied to 4920 independent 2D test images and results were compared to a manual segmentation using the S{\o}rensen-Dice similarity coefficient (DSC) and the Hausdorff distance (HD). Obtained lung volumes and fractional ventilation values calculated from both segmentations were compared using Pearson's correlation coefficient and Bland Altman analysis. To investigate generalizability to patients outside the CF collective, in particular to those exhibiting larger consolidations inside the lung, the network was additionally applied to UTE images from four patients with pneumonia and one with lung cancer. Results The overall DSC for lung tissue was 0.967 ± 0.076 (mean ± standard deviation) and HD was 4.1 ± 4.4 mm. Lung volumes derived from manual and deep learning based segmentations as well as values for fractional ventilation exhibited a high overall correlation (Pearson's correlation coefficent = 0.99 and 1.00). For the additional cohort with unseen pathologies / consolidations, mean DSC was 0.930 ± 0.083, HD = 12.9 ± 16.2 mm and the mean difference in lung volume was 0.032 ± 0.048 L. Conclusions Deep learning-based image segmentation in stack-of-spirals based lung MRI allows for accurate estimation of lung volumes and fractional ventilation values and promises to replace the time-consuming step of manual image segmentation in the future.},
  language  = {en}
}
@article{YeWilhelmGentschevetal.2021,
  author    = {Ye, Mingyu and Wilhelm, Martina and Gentschev, Ivaylo and Szalay, Alad{\´a}r},
  title     = {A modified limiting dilution method for monoclonal stable cell line selection using a real-time fluorescence imaging system: A practical workflow and advanced applications},
  series = {Methods and Protocols},
  volume    = {4},
  journal   = {Methods and Protocols},
  number    = {1},
  doi       = {10.3390/mps4010016},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-228896},
  year      = {2021},
  abstract  = {Stable cell lines are widely used in laboratory research and pharmaceutical industry. They are mainly applied in recombinant protein and antibody productions, gene function studies, drug screens, toxicity assessments, and for cancer therapy investigation. There are two types of cell lines, polyclonal and monoclonal origin, that differ regarding their homogeneity and heterogeneity. Generating a high-quality stable cell line, which can grow continuously and carry a stable genetic modification without alteration is very important for most studies, because polyclonal cell lines of multicellular origin can be highly variable and unstable and lead to inconclusive experimental results. The most commonly used technologies of single cell originate monoclonal stable cell isolation in laboratory are fluorescence-activated cell sorting (FACS) sorting and limiting dilution cloning. Here, we describe a modified limiting dilution method of monoclonal stable cell line selection using the real-time fluorescence imaging system IncuCyte\(^®\)S3.},
  language  = {en}
}
@article{LuisHorrerPhilippetal.2021,
  author    = {Luis, Werner and Horrer, G{\"u}nther and Philipp, Michael and Lubitz, Katharina and Kuntze-Fechner, Maximilian W. and Radius, Udo},
  title     = {A General Synthetic Route to NHC-Phosphinidenes: NHC-mediated Dehydrogenation of Primary Phosphines},
  series = {Zeitschrift f{\"u}r anorganische und allgemeine Chemie},
  volume    = {647},
  journal   = {Zeitschrift f{\"u}r anorganische und allgemeine Chemie},
  number    = {8},
  doi       = {10.1002/zaac.202000405},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-258016},
  pages     = {881-895},
  year      = {2021},
  abstract  = {The dehydrocoupling of primary phosphines with N-heterocyclic carbenes (NHCs) to yield NHC-phosphinidenes is reported. The reaction of two equivalents of the NHCs Me\(_2\)Im (1,3-dimethylimidazolin-2-ylidene), Me\(_4\)Im (1,3,4,5-tetramethylimidazolin-2-ylidene), iPr\(_2\)Im (1,3-di-iso-propylimidazolin-2-ylidene) and Mes\(_2\)Im (2,4,6-trimethylphenylimidazolin-2-ylidene) with PhPH\(_2\) and MesPH\(_2\) led to the NHC stabilized phosphinidenes (NHC)PAr: (iPr\(_2\)Im)PPh (1), (Mes\(_2\)Im)PPh (2), (Me\(_4\)Im)PPh (3), (Mes\(_2\)Im)PMes (4), (Me\(_2\)Im)PMes (5), (Me\(_4\)Im)PMes (6) and (iPr\(_2\)Im)PMes (7). The reaction of tBuPH\(_2\) with two equivalents of the NHCs afforded the corresponding NHC stabilized parent phosphinidenes (NHC)PH: (iPr\(_2\)Im)PH (8), (Mes\(_2\)Im)PH (9) and (Me\(_4\)Im)PH (10). Reaction of 1 with oxygen and sulfur led to isolation of iPr\(_2\)Im-P(O)\(_2\)Ph (11) and iPr\(_2\)Im-P(S)\(_2\)Ph (12), whereas the reaction with elemental selenium and tellurium gave (NHC)PPh cleavage with formation of (iPr\(_2\)Im)Se (13), iPr\(_2\)ImTe (14) and different cyclo-oligophosphines. Furthermore, the complexes [{(iPr\(_2\)Im)PPh}W(CO)\(_5\)] (15), [Co(CO)\(_2\)(NO){(iPr\(_2\)Im)PPh}] (16) and [(η\(^5\)-C\(_5\)Me\(_2\))Co(η\(^2\)-C\(_2\)H\(_4\)){(iPr\(_2\)Im)PPh}] (17) have been prepared starting from 1 and a suitable transition metal complex precursor. The complexes 16 and 17 decompose in solution upon heating to ca. 80 °C to yield the NHC complexes [Co(iPr\(_2\)Im)(CO)\(_2\)(NO)] and [(η\(^5\)-C\(_5\)Me\(_5\))Co(iPr\(_2\)Im)(η\(^2\)-C\(_2\)H\(_4\))] with formation of cyclo-oligophosphines. The reaction of 1 with [Ni(COD)\(_2\)] afforded the diphosphene complex [Ni(iPr\(_2\)Im)\(_2\)(trans-PhP=PPh)] 18.},
  language  = {en}
}
@article{HankirRotzingerNordbecketal.2021,
  author    = {Hankir, Mohammed K. and Rotzinger, Laura and Nordbeck, Arno and Corteville, Caroline and Dischinger, Ulrich and Knop, Juna-Lisa and Hoffmann, Annett and Otto, Christoph and Seyfried, Florian},
  title     = {Leptin receptors are not required for Roux-en-Y gastric bypass surgery to normalize energy and glucose homeostasis in rats},
  series = {Nutrients},
  volume    = {13},
  journal   = {Nutrients},
  number    = {5},
  issn      = {2072-6643},
  doi       = {10.3390/nu13051544},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-239550},
  year      = {2021},
  abstract  = {Sensitization to the adipokine leptin is a promising therapeutic strategy against obesity and its comorbidities and has been proposed to contribute to the lasting metabolic benefits of Roux-en-Y gastric bypass (RYGB) surgery. We formally tested this idea using Zucker fatty fa/fa rats as an established genetic model of obesity, glucose intolerance, and fatty liver due to leptin receptor deficiency. We show that the changes in body weight in these rats following RYGB largely overlaps with that of diet-induced obese Wistar rats with intact leptin receptors. Further, food intake and oral glucose tolerance were normalized in RYGB-treated Zucker fatty fa/fa rats to the levels of lean Zucker fatty fa/+ controls, in association with increased glucagon-like peptide 1 (GLP-1) and insulin release. In contrast, while fatty liver was also normalized in RYGB-treated Zucker fatty fa/fa rats, their circulating levels of the liver enzyme alanine aminotransferase (ALT) remained elevated at the level of obese Zucker fatty fa/fa controls. These findings suggest that the leptin system is not required for the normalization of energy and glucose homeostasis associated with RYGB, but that its potential contribution to the improvements in liver health postoperatively merits further investigation.},
  language  = {en}
}
@article{WalterDegenPfeifferetal.2021,
  author    = {Walter, Thomas and Degen, Jacqueline and Pfeiffer, Keram and St{\"o}ckl, Anna and Montenegro, Sergio and Degen, Tobias},
  title     = {A new innovative real-time tracking method for flying insects applicable under natural conditions},
  series = {BMC Zoology},
  volume    = {6},
  journal   = {BMC Zoology},
  doi       = {10.1186/s40850-021-00097-3},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-265716},
  year      = {2021},
  abstract  = {Background Sixty percent of all species are insects, yet despite global efforts to monitor animal movement patterns, insects are continuously underrepresented. This striking difference between species richness and the number of species monitored is not due to a lack of interest but rather to the lack of technical solutions. Often the accuracy and speed of established tracking methods is not high enough to record behavior and react to it experimentally in real-time, which applies in particular to small flying animals. Results Our new method of real-time tracking relates to frequencies of solar radiation which are almost completely absorbed by traveling through the atmosphere. For tracking, photoluminescent tags with a peak emission (1400 nm), which lays in such a region of strong absorption through the atmosphere, were attached to the animals. The photoluminescent properties of passivated lead sulphide quantum dots were responsible for the emission of light by the tags and provide a superb signal-to noise ratio. We developed prototype markers with a weight of 12.5 mg and a diameter of 5 mm. Furthermore, we developed a short wave infrared detection system which can record and determine the position of an animal in a heterogeneous environment with a delay smaller than 10 ms. With this method we were able to track tagged bumblebees as well as hawk moths in a flight arena that was placed outside on a natural meadow. Conclusion Our new method eliminates the necessity of a constant or predictable environment for many experimental setups. Furthermore, we postulate that the developed matrix-detector mounted to a multicopter will enable tracking of small flying insects, over medium range distances (>1000m) in the near future because: a) the matrix-detector equipped with an 70 mm interchangeable lens weighs less than 380 g, b) it evaluates the position of an animal in real-time and c) it can directly control and communicate with electronic devices.},
  language  = {en}
}
@article{KurzZanzingerHagenetal.2021,
  author    = {Kurz, Anja and Zanzinger, Maren and Hagen, Rudolf and Rak, Kirsten},
  title     = {The impact of cochlear implant microphone settings on the binaural hearing of experienced cochlear implant users with single sided deafness},
  series = {European Archives of Oto-Rhino-Laryngology},
  journal   = {European Archives of Oto-Rhino-Laryngology},
  edition   = {corrected version},
  issn      = {0937-4477},
  doi       = {10.1007/s00405-020-06450-5},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-231750},
  year      = {2021},
  abstract  = {Objective Cochlear implantation has become a well-accepted treatment option for people with single-sided deafness (SSD) and has become a clinical standard in many countries. A cochlear implant (CI) is the only device which restores binaural hearing. The effect of microphone directionality (MD) settings has been investigated in other CI indication groups, but its impact on speech perception in noise has not been established in CI users with SSD. The focus of this investigation was, therefore, to assess binaural hearing effects using different MD settings in CI users with SSD. Methods Twenty-nine experienced CI users with SSD were recruited to determine speech reception thresholds with varying target and noise sources to define binaural effects (head shadow, squelch, summation, and spatial release from masking), sound localization, and sound quality using the SSQ12 and HISQUI19 questionnaires. Outcome measures included the MD settings "natural", "adaptive", and "omnidirectional". Results The 29 participants involved in the study were divided into two groups: 11 SONNET users and 18 OPUS 2/RONDO users. In both groups, a significant head shadow effect of 7.4-9.2 dB was achieved with the CI. The MD setting "adaptive" provided a significant head shadow effect of 9.2 dB, a squelch effect of 0.9 dB, and spatial release from masking of 7.6 dB in the SONNET group. No significant summation effect could be determined in either group with CI. Outcomes with the omnidirectional setting were not significantly different between groups. For both groups, localization improved significantly when the CI was activated and was best when the omnidirectional setting was used. The groups' sound quality scores did not significantly differ. Conclusions Adaptive directional microphone settings improve speech perception and binaural hearing abilities in CI users with SSD. Binaural effect measures are valuable to quantify the benefit of CI use, especially in this indication group.},
  language  = {en}
}
@article{KuckaLangZhangetal.2021,
  author    = {Kucka, Kirstin and Lang, Isabell and Zhang, Tengyu and Siegmund, Daniela and Medler, Juliane and Wajant, Harald},
  title     = {Membrane lymphotoxin-α\(_2\)β is a novel tumor necrosis factor (TNF) receptor 2 (TNFR2) agonist},
  series = {Cell Death \& Disease},
  volume    = {12},
  journal   = {Cell Death \& Disease},
  number    = {4},
  doi       = {10.1038/s41419-021-03633-8},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-260077},
  pages     = {360},
  year      = {2021},
  abstract  = {In the early 1990s, it has been described that LTα and LTβ form LTα\(_2\)β and LTαβ\(_2\) heterotrimers, which bind to TNFR1 and LTβR, respectively. Afterwards, the LTαβ\(_2\)-LTβR system has been intensively studied while the LTα\(_2\)β-TNFR1 interaction has been ignored to date, presumably due to the fact that at the time of identification of the LTα\(_2\)β-TNFR1 interaction one knew already two ligands for TNFR1, namely TNF and LTα. Here, we show that LTα\(_2\)β interacts not only with TNFR1 but also with TNFR2. We furthermore demonstrate that membrane-bound LTα\(_2\)β (memLTα\(_2\)β), despite its asymmetric structure, stimulates TNFR1 and TNFR2 signaling. Not surprising in view of its ability to interact with TNFR2, LTα\(_2\)β is inhibited by Etanercept, which is approved for the treatment of rheumatoid arthritis and also inhibits TNF and LTα.},
  language  = {en}
}