TY  - JOUR
A1  - Brixner, T.
A1  - Aeschlimann, M.
A1  - Fischer, A.
A1  - Geisler, P.
A1  - Goetz, S.
A1  - Hecht, B.
A1  - Huang, J. S.
A1  - Keitzl, T.
A1  - Kramer, C.
A1  - Melchior, P.
A1  - Pfeiffer, W.
A1  - Razinskas, G.
A1  - Rewitz, C.
A1  - Schneider, C.
A1  - Strüber, C.
A1  - Tuchscherer, P.
A1  - Voronine, D. V.
T1  - Coherent spectroscopies on ultrashort time and length scales
JF  - EPJ Web of Conferences
N2  - Three spectroscopic techniques are presented that provide simultaneous spatial and temporal resolution: modified confocal microscopy with heterodyne detection, space-time-resolved spectroscopy using coherent control concepts, and coherent two-dimensional nano-spectroscopy. Latest experimental results are discussed.
KW  - coherent spectroscopy
KW  - ultrashort time
KW  - length scale
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-129073
VL  - 41
ER  - 
TY  - JOUR
A1  - Klement, Rainer J.
A1  - Abbasi-Senger, N.
A1  - Adebahr, S.
A1  - Alheid, H.
A1  - Allgaeuer, M.
A1  - Becker, G.
A1  - Blanck, O.
A1  - Boda-Heggemann, J.
A1  - Brunner, T.
A1  - Duma, M.
A1  - Eble, M. J.
A1  - Ernst, I.
A1  - Gerum, S.
A1  - Habermehl, D.
A1  - Hass, P.
A1  - Henkenberens, C.
A1  - Hildebrandt, G.
A1  - Imhoff, D.
A1  - Kahl, H.
A1  - Klass, N. D.
A1  - Krempien, R.
A1  - Lewitzki, V.
A1  - Lohaus, F.
A1  - Ostheimer, C.
A1  - Papachristofilou, A.
A1  - Petersen, C.
A1  - Rieber, J.
A1  - Schneider, T.
A1  - Schrade, E.
A1  - Semrau, R.
A1  - Wachter, S.
A1  - Wittig, A.
A1  - Guckenberger, M.
A1  - Andratschke, N.
T1  - The impact of local control on overall survival after stereotactic body radiotherapy for liver and lung metastases from colorectal cancer: a combined analysis of 388 patients with 500 metastases
JF  - BMC Cancer
N2  - Background
The aim of this analysis was to model the effect of local control (LC) on overall survival (OS) in patients treated with stereotactic body radiotherapy (SBRT) for liver or lung metastases from colorectal cancer.

Methods
The analysis is based on pooled data from two retrospective SBRT databases for pulmonary and hepatic metastases from 27 centers from Germany and Switzerland. Only patients with metastases from colorectal cancer were considered to avoid histology as a confounding factor. An illness-death model was employed to model the relationship between LC and OS.

Results
Three hundred eighty-eight patients with 500 metastatic lesions (lung n = 209, liver n = 291) were included and analyzed. Median follow-up time for local recurrence assessment was 12.1 months. Ninety-nine patients with 112 lesions experienced local failure. Seventy-one of these patients died after local failure. Median survival time was 27.9 months in all patients and 25.4 months versus 30.6 months in patients with and without local failure after SBRT. The baseline risk of death after local failure exceeds the baseline risk of death without local failure at 10 months indicating better survival with LC.

Conclusion
In CRC patients with lung or liver metastases, our findings suggest improved long-term OS by achieving metastatic disease control using SBRT in patients with a projected OS estimate of > 12 months.
KW  - colorectal cancer
KW  - illness-death model
KW  - liver metastases
KW  - lung metastases
KW  - tumor control probability
KW  - stereotactic body radiation therapy
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-325877
VL  - 19
ER  - 
TY  - JOUR
A1  - Gulberti, A.
A1  - Moll, C.K.E.
A1  - Hamel, W.
A1  - Buhmann, C.
A1  - Koeppen, J.A.
A1  - Boelmans, K.
A1  - Zittel, S.
A1  - Gerloff, C.
A1  - Westphal, M.
A1  - Schneider, T.R.
A1  - Engel, A.K.
T1  - Predictive timing functions of cortical beta oscillations are impaired in Parkinson's disease and influenced by L-DOPA and deep brain stimulation of the subthalamic nucleus Impaired beta-band timing functions in PD
JF  - NeuroImage: Clinical
N2  - Cortex-basal ganglia circuits participate in motor timing and temporal perception, and are important for the dynamic configuration of sensorimotor networks in response to exogenous demands. In Parkinson's disease (PD) patients, rhythmic auditory stimulation (RAS) induces motor performance benefits. Hitherto, little is known concerning contributions of the basal ganglia to sensory facilitation and cortical responses to RAS in PD. Therefore, we conducted an EEG study in 12 PD patients before and after surgery for subthalamic nucleus deep brain stimulation (STN-DBS) and in 12 age-matched controls. Here we investigated the effects of levodopa and STN-DBS on resting-state EEG and on the cortical-response profile to slow and fast RAS in a passive-listening paradigm focusing on beta-band oscillations, which are important for auditory–motor coupling. The beta-modulation profile to RAS in healthy participants was characterized by local peaks preceding and following auditory stimuli. In PD patients RAS failed to induce pre-stimulus beta increases. The absence of pre-stimulus beta-band modulation may contribute to impaired rhythm perception in PD. Moreover, post-stimulus beta-band responses were highly abnormal during fast RAS in PD patients. Treatment with levodopa and STN-DBS reinstated a post-stimulus beta-modulation profile similar to controls, while STN-DBS reduced beta-band power in the resting-state. The treatment-sensitivity of beta oscillations suggests that STN-DBS may specifically improve timekeeping functions of cortical beta oscillations during fast auditory pacing.
KW  - Parkinson's disease
KW  - interval timing
KW  - beta oscillations
KW  - subthalamic nucleus
KW  - deep brain stimulation
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-150049
VL  - 9
ER  - 
TY  - JOUR
A1  - Czerniuk, T.
A1  - Brüggemann, C.
A1  - Tepper, J.
A1  - Brodbeck, S.
A1  - Schneider, C.
A1  - Kamp, M.
A1  - Höfling, S.
A1  - Glavin, B. A.
A1  - Yakovlev, D. R.
A1  - Akimov, A. V.
A1  - Bayer, M.
T1  - Lasing from active optomechanical resonators
JF  - Nature Communications
N2  - Planar microcavities with distributed Bragg reflectors (DBRs) host, besides confined optical modes, also mechanical resonances due to stop bands in the phonon dispersion relation of the DBRs. These resonances have frequencies in the 10- to 100-GHz range, depending on the resonator's optical wavelength, with quality factors exceeding 1,000. The interaction of photons and phonons in such optomechanical systems can be drastically enhanced, opening a new route towards the manipulation of light. Here we implemented active semiconducting layers into the microcavity to obtain a vertical-cavity surface-emitting laser (VCSEL). Thereby, three resonant excitations--photons, phonons and electrons--can interact strongly with each other providing modulation of the VCSEL laser emission: a picosecond strain pulse injected into the VCSEL excites long-living mechanical resonances therein. As a result, modulation of the lasing intensity at frequencies up to 40 GHz is observed. From these findings, prospective applications of active optomechanical resonators integrated into nanophotonic circuits may emerge.
KW  - physical sciences
KW  - applied physics
KW  - optical physics
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-121559
VL  - 5
ER  - 
TY  - JOUR
A1  - Hopfmann, C.
A1  - Albert, F.
A1  - Schneider, C.
A1  - Höfling, S.
A1  - Kamp, M.
A1  - Forchel, A.
A1  - Kanter, I.
A1  - Reizenstein, S.
T1  - Nonlinear emission characteristics of quantum dot-micropillar lasers in the presence of polarized optical feedback
JF  - New Journal of Physics
N2  - We report on electrically pumped quantum dot-microlasers in the presence of polarized self-feedback. The high-\(\beta\) microlasers show two orthogonal, linearly polarized emission modes which are coupled via the common gain medium. This coupling is explained in terms of gain competition between the two lasing modes and leads to distinct differences in their input-output characteristics. By applying polarized self-feedback via an external mirror, we are able to control the laser characteristics of the emission modes in terms of the output power, the coherence time and the photon statistics. We find that linearly polarized self-feedback stabilizes the lasing of a given mode, while cross-polarized feedback between the two modes reduces strongly the intensity of the other emission mode showing particular high-intensity fluctuations and even super-thermal values of the photon autocorrelation function \(g^{(2)} (\tau)\) at zero delay. Measurements of \(g^{(2)} (\tau)\) under external feedback also allow us to detect revival peaks associated with the round trip time of the external cavity. Analyzing the damping and shape of the \(g^{(2)} (\tau)\) revival peaks by a phenomenological model provides us insight into the underlying physics such as the effective exciton lifetime and gain characteristics of the quantum dots in the active region of these microlasers.
KW  - semiconductor lasers
KW  - coherence
KW  - system
KW  - gain
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-123127
SN  - 1367-2630
VL  - 15
IS  - 025030
ER  - 
TY  - JOUR
A1  - Marenholz, Ingo
A1  - Esparza-Gordillo, Jorge
A1  - Rüschendorf, Franz
A1  - Bauerfeind, Anja
A1  - Strachan, David P.
A1  - Spycher, Ben D.
A1  - Baurecht, Hansjörg
A1  - Magaritte-Jeannin, Patricia
A1  - Sääf, Annika
A1  - Kerkhof, Marjan
A1  - Ege, Markus
A1  - Baltic, Svetlana
A1  - Matheson, Melanie C.
A1  - Li, Jin
A1  - Michel, Sven
A1  - Ang, Wei Q.
A1  - McArdle, Wendy
A1  - Arnold, Andreas
A1  - Homuth, Georg
A1  - Demenais, Florence
A1  - Bouzigon, Emmanuelle
A1  - Söderhäll, Cilla
A1  - Pershagen, Göran
A1  - de Jongste, Johan C.
A1  - Postma, Dirkje S.
A1  - Braun-Fahrländer, Charlotte
A1  - Horak, Elisabeth
A1  - Ogorodova, Ludmila M.
A1  - Puzyrev, Valery P.
A1  - Bragina, Elena Yu
A1  - Hudson, Thomas J.
A1  - Morin, Charles
A1  - Duffy, David L.
A1  - Marks, Guy B.
A1  - Robertson, Colin F.
A1  - Montgomery, Grant W.
A1  - Musk, Bill
A1  - Thompson, Philip J.
A1  - Martin, Nicholas G.
A1  - James, Alan
A1  - Sleiman, Patrick
A1  - Toskala, Elina
A1  - Rodriguez, Elke
A1  - Fölster-Holst, Regina
A1  - Franke, Andre
A1  - Lieb, Wolfgang
A1  - Gieger, Christian
A1  - Heinzmann, Andrea
A1  - Rietschel, Ernst
A1  - Keil, Thomas
A1  - Cichon, Sven
A1  - Nöthen, Markus M.
A1  - Pennel, Craig E.
A1  - Sly, Peter D.
A1  - Schmidt, Carsten O.
A1  - Matanovic, Anja
A1  - Schneider, Valentin
A1  - Heinig, Matthias
A1  - Hübner, Norbert
A1  - Holt, Patrick G.
A1  - Lau, Susanne
A1  - Kabesch, Michael
A1  - Weidinger, Stefan
A1  - Hakonarson, Hakon
A1  - Ferreira, Manuel A. R.
A1  - Laprise, Catherine
A1  - Freidin, Maxim B.
A1  - Genuneit, Jon
A1  - Koppelman, Gerard H.
A1  - Melén, Erik
A1  - Dizier, Marie-Hélène
A1  - Henderson, A. John
A1  - Lee, Young Ae
T1  - Meta-analysis identifies seven susceptibility loci involved in the atopic march
JF  - Nature Communications
N2  - Eczema often precedes the development of asthma in a disease course called the 'atopic march'. To unravel the genes underlying this characteristic pattern of allergic disease, we conduct a multi-stage genome-wide association study on infantile eczema followed by childhood asthma in 12 populations including 2,428 cases and 17,034 controls. Here we report two novel loci specific for the combined eczema plus asthma phenotype, which are associated with allergic disease for the first time; rs9357733 located in EFHC1 on chromosome 6p12.3 (OR 1.27; P = 2.1 x 10(-8)) and rs993226 between TMTC2 and SLC6A15 on chromosome 12q21.3 (OR 1.58; P = 5.3 x 10(-9)). Additional susceptibility loci identified at genome-wide significance are FLG (1q21.3), IL4/KIF3A (5q31.1), AP5B1/OVOL1 (11q13.1), C11orf30/LRRC32 (11q13.5) and IKZF3 (17q21). We show that predominantly eczema loci increase the risk for the atopic march. Our findings suggest that eczema may play an important role in the development of asthma after eczema.
KW  - chromosome 11Q13
KW  - risk
KW  - genomewide association
KW  - hay fever
KW  - birth cohort
KW  - filaggrin mutations
KW  - food allergy
KW  - juvenile myoclonic epilepsy
KW  - childhood asthma
KW  - dermatitis
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-139835
VL  - 6
IS  - 8804
ER  - 
TY  - JOUR
A1  - Suchomel, H.
A1  - Brodbeck, S.
A1  - Liew, T. C. H.
A1  - Amthor, M.
A1  - Klaas, M.
A1  - Klembt, S.
A1  - Kamp, M.
A1  - Höfling, S.
A1  - Schneider, C.
T1  - Prototype of a bistable polariton field-effect transistor switch
JF  - Scientific Reports
N2  - Microcavity exciton polaritons are promising candidates to build a new generation of highly nonlinear and integrated optoelectronic devices. Such devices range from novel coherent light emitters to reconfigurable potential landscapes for electro-optical polariton-lattice based quantum simulators as well as building blocks of optical logic architectures. Especially for the latter, the strongly interacting nature of the light-matter hybrid particles has been used to facilitate fast and efficient switching of light by light, something which is very hard to achieve with weakly interacting photons. We demonstrate here that polariton transistor switches can be fully integrated in electro-optical schemes by implementing a one-dimensional polariton channel which is operated by an electrical gate rather than by a control laser beam. The operation of the device, which is the polariton equivalent to a field-effect transistor, relies on combining electro-optical potential landscape engineering with local exciton ionization to control the scattering dynamics underneath the gate. We furthermore demonstrate that our device has a region of negative differential resistance and features a completely new way to create bistable behavior.
KW  - materials for optics
KW  - nanoscience and technology
KW  - optics and photonics
KW  - semiconductors
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-158323
VL  - 7
IS  - 5114
ER  - 
TY  - JOUR
A1  - Andratschke, N.
A1  - Alheid, H.
A1  - Allgäuer, M.
A1  - Becker, G.
A1  - Blanck, O.
A1  - Boda-Heggemann, J.
A1  - Brunner, T.
A1  - Duma, M.
A1  - Gerum, S.
A1  - Guckenberger, M.
A1  - Hildebrandt, G.
A1  - Klement, R. J.
A1  - Lewitzki, V.
A1  - Ostheimer, C.
A1  - Papachristofilou, A.
A1  - Petersen, C.
A1  - Schneider, T.
A1  - Semrau, R.
A1  - Wachter, S.
A1  - Habermehl, D.
T1  - The SBRT database initiative of the German Society for Radiation Oncology (DEGRO): patterns of care and outcome analysis of stereotactic body radiotherapy (SBRT) for liver oligometastases in 474 patients with 623 metastases
JF  - BMC Cancer
N2  - Background
The intent of this pooled analysis as part of the German society for radiation oncology (DEGRO) stereotactic body radiotherapy (SBRT) initiative was to analyze the patterns of care of SBRT for liver oligometastases and to derive factors influencing treated metastases control and overall survival in a large patient cohort.

Methods
From 17 German and Swiss centers, data on all patients treated for liver oligometastases with SBRT since its introduction in 1997 has been collected and entered into a centralized database. In addition to patient and tumor characteristics, data on immobilization, image guidance and motion management as well as dose prescription and fractionation has been gathered. Besides dose response and survival statistics, time trends of the aforementioned variables have been investigated.

Results
In total, 474 patients with 623 liver oligometastases (median 1 lesion/patient; range 1–4) have been collected from 1997 until 2015. Predominant histologies were colorectal cancer (n = 213 pts.; 300 lesions) and breast cancer (n = 57; 81 lesions). All centers employed an SBRT specific setup. Initially, stereotactic coordinates and CT simulation were used for treatment set-up (55%), but eventually were replaced by CBCT guidance (28%) or more recently robotic tracking (17%). High variance in fraction (fx) number (median 1 fx; range 1–13) and dose per fraction (median: 18.5 Gy; range 3–37.5 Gy) was observed, although median BED remained consistently high after an initial learning curve. Median follow-up time was 15 months; median overall survival after SBRT was 24 months. One- and 2-year treated metastases control rate of treated lesions was 77% and 64%; if maximum isocenter biological equivalent dose (BED) was greater than 150 Gy EQD2Gy, it increased to 83% and 70%, respectively. Besides radiation dose colorectal and breast histology and motion management methods were associated with improved treated metastases control.

Conclusion
After an initial learning curve with regards to total cumulative doses, consistently high biologically effective doses have been employed translating into high local tumor control at 1 and 2 years. The true impact of histology and motion management method on treated metastases control deserve deeper analysis. Overall survival is mainly influenced by histology and metastatic tumor burden.
KW  - stereotactic body radiotherapy
KW  - liver oligometastases
KW  - outcome
KW  - treated metastases control
KW  - oligometastases
KW  - oligo-recurrence
KW  - sync-oligometastases
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-221116
VL  - 18
ER  - 
TY  - JOUR
A1  - Galimberti, Daniela
A1  - Dell'Osso, Bernardo
A1  - Fenoglio, Chiara
A1  - Villa, Chiara
A1  - Cortini, Francesca
A1  - Serpente, Maria
A1  - Kittel-Schneider, Sarah
A1  - Weigl, Johannes
A1  - Neuner, Maria
A1  - Volkert, Juliane
A1  - Leonhard, C.
A1  - Olmes, David G.
A1  - Kopf, Juliane
A1  - Cantoni, Claudia
A1  - Ridolfi, Elisa
A1  - Palazzo, Carlotta
A1  - Ghezzi, Laura
A1  - Bresolin, Nereo
A1  - Altamura, A.C.
A1  - Scarpini, Elio
A1  - Reif, Andreas
T1  - Progranulin Gene Variability and Plasma Levels in Bipolar Disorder and Schizophrenia
JF  - PLoS One
N2  - Basing on the assumption that frontotemporal lobar degeneration (FTLD), schizophrenia and bipolar disorder (BPD) might share common aetiological mechanisms, we analyzed genetic variation in the FTLD risk gene progranulin (GRN) in a German population of patients with schizophrenia (n=271) or BPD (n=237) as compared with 574 age-, gender-and ethnicity-matched controls. Furthermore, we measured plasma progranulin levels in 26 German BPD patients as well as in 61 Italian BPD patients and 29 matched controls. A significantly decreased allelic frequency of the minor versus the wild-type allele was observed for rs2879096 (23.2 versus 34.2%, P<0.001, OR: 0.63, 95% CI: 0.49-0.80), rs4792938 (30.7 versus 39.7%, P=0.005, OR: 0.70, 95% CI: 0.55-0.89) and rs5848 (30.3 versus 36.8, P=0.007, OR: 0.71, 95% CI: 0.56-0.91). Mean +/- SEM progranulin plasma levels were significantly decreased in BPD patients, either Germans or Italians, as compared with controls (89.69 +/- 3.97 and 116.14 +/- 5.80 ng/ml, respectively, versus 180.81 +/- 18.39 ng/ml P<0.001) and were not correlated with age. In conclusion, GRN variability decreases the risk to develop BPD and schizophrenia, and progranulin plasma levels are significantly lower in BPD patients than in controls. Nevertheless, a larger replication analysis would be needed to confirm these preliminary results.
KW  - people
KW  - frontotemporal lobar degeneration
KW  - genome-wide association
KW  - Alzheimers disease
KW  - risk genes
KW  - dementia
KW  - GRN
KW  - mutation
KW  - families
KW  - linkage
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-131910
VL  - 7
IS  - 4
ER  - 
TY  - JOUR
A1  - Schneider-Schaulies, Jürgen
A1  - Schneider-Schaulies, Sibylle
A1  - Brinkmann, R.
A1  - Tas, P.
A1  - Halbrügge, M.
A1  - Walter, U.
A1  - Holmes, H.C.
A1  - ter Meulen, Volker
T1  - HIV-1 gp120 receptor on CD4-negative brain cells activates a tyrosine kinase
N2  - Human immunodeficiency virus (HIV-1) infection in the human brain Ieads to characteristic neuropathological changes, which may result indirectly from interactions of the envelope glycoprotein gp 120 with neurons and/or glial cells. We therefore investigated the binding of recombinant gp120 (rgp120) to human neural cells and its effect on int~acellular.s.ignallin~. Herewe pre~ent evidence that rgp120, besides binding to galactocerebroside or galactosyl-sulfatlde, spec1f1cally bmds to a protem receptor of a relative molecular mass of approximately 180,000 Da (180 kDa) pre~ent. on the CD4-negative glioma cells D-54, but not on Molt4 T lymphocytes. Binding of rgp120 to this receptor rap1dly 1nduced a tyrosine-specific protein kinase activity leading to tyrosine phosphorylation of 130- and 115-kDa p~oteins. The c~ncentration of intracellular calciumwas not affected by rgp120 in these cells. Our data suggest a novel Signal transduc1ng HIV-1 gp120 receptor on CD4-negative glial cells, which may contribute to the neuropathological changes observed in HIV-1-infected brains.
KW  - Immunologie
Y1  - 1992
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-54872
ER  - 
TY  - JOUR
A1  - Schneider, Andreas
A1  - Gutjahr-Lengsfeld, Lena
A1  - Ritz, Eberhard
A1  - Scharnagl, Hubert
A1  - Gelbrich, Götz
A1  - Pilz, Stefan
A1  - Macdougall, Iain C.
A1  - Wanner, Christoph
A1  - Drechsler, Christiane
T1  - Longitudinal Assessments of Erythropoietin-Stimulating Agent Responsiveness and the Association with Specific Clinical Outcomes in Dialysis Patients
JF  - Nephron Clinical Practice
N2  - Background: Dose requirements of erythropoietin-stimulating agents (ESAs) can vary considerably over time and may be associated with cardiovascular outcomes. We aimed to longitudinally assess ESA responsiveness over time and to investigate its association with specific clinical end points in a time-dependent approach. Methods: The German Diabetes and Dialysis study (4D study) included 1,255 diabetic dialysis patients, of whom 1,161 were receiving ESA treatment. In those patients, the erythropoietin resistance index (ERI) was assessed every 6 months during a median follow-up of 4 years. The association between the ERI and cardiovascular end points was analyzed by time-dependent Cox regression analyses with repeated ERI measures. Results: Patients had a mean age of 66 ± 8.2 years; 53% were male. During follow-up, a total of 495 patients died, of whom 136 died of sudden death and 102 of infectious death. The adjusted and time-dependent risk for sudden death was increased by 19% per 5-unit increase in the ERI (hazard ratio, HR = 1.19, 95% confidence interval, CI = 1.07-1.33). Similarly, mortality increased by 25% (HR = 1.25, 95% CI = 1.18-1.32) and infectious death increased by 27% (HR = 1.27, 95% CI = 1.13-1.42). Further analysis revealed that lower 25-hydroxyvitamin D levels were associated with lower ESA responsiveness (p = 0.046). Conclusions: In diabetic dialysis patients, we observed that time-varying erythropoietin resistance is associated with sudden death, infectious complications and all-cause mortality. Low 25-hydroxyvitamin D levels may contribute to a lower ESA responsiveness.
KW  - dialysis
KW  - erythropoietin
KW  - diabetes
KW  - epidemiology
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-196511
SN  - 1660-2110
N1  - This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
VL  - 128
IS  - 1-2
ER  - 
TY  - JOUR
A1  - Laiho, K.
A1  - Pressl, B.
A1  - Schlager, A.
A1  - Suchomel, H.
A1  - Kamp, M.
A1  - Höfling, S.
A1  - Schneider, C.
A1  - Weihs, G.
T1  - Uncovering dispersion properties in semiconductor waveguides to study photon-pair generation
JF  - Nanotechnology
N2  - We investigate the dispersion properties of ridge Bragg-reflection waveguides to deduce their phasematching characteristics. These are crucial for exploiting them as sources of parametric down-conversion (PDC). In order to estimate the phasematching bandwidth we first determine the group refractive indices of the interacting modes via Fabry-Perot experiments in two distant wavelength regions. Second, by measuring the spectra of the emitted PDC photons, we gain access to their group index dispersion. Our results offer a simple approach for determining the PDC process parameters in the spectral domain, and provide important feedback for designing such sources, especially in the broadband case.
KW  - Parametric down-conversion
KW  - Entanglement
KW  - CHIP
KW  - PUMP
KW  - Bragg-reflection waveguide
KW  - Information
KW  - phasematching
KW  - group refractive index
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-187025
VL  - 27
IS  - 43
ER  - 
TY  - JOUR
A1  - Archelos, JJ
A1  - Roggenbuck, K.
A1  - Schneider-Schaulies, Jürgen
A1  - Linington, C.
A1  - Toyka, KV
A1  - Hartung, H.-P.
T1  - Production and characterization of monoclonal antibodies to the extracellular domain of PO
N2  - Seven monoclonal antibodies were raised against the immunoglobulin-like extracellular domain of PO (POED), the major protein of peripheral nervous system myelin. Mice were immunized with purified recombinant rat PO-ED. After fusion, 7 clones (POI-P07) recognizing either recombinant, rat, mouse, or human PO-ED were selected by ELlS A and were characterized by Western blot, immunohistochemistry, and a competition assay. Antibodies belonged to the IgG or IgM class, and P04-P07, reacted with PO in fresh-frozen and paraffin-embedded sections of human or rat peripheral nerve, but not with myelin proteins of the central nervous system of either species. Epitope specificity of the antibodies was determined by a competition enzyme-linked immunosorbent assay (ELISA) and a direct ELlS A using short synthetic peptides spanning the entire extracellular domain of PO. These assays showed that POl and P02 exhibiting the same reaction pattern in Western blot and immunohistochemistry reacted with different distant epitopes of PO. Furthermore, the monoclonal antibodies P05 and P06 recognized 2 different epitopes in close proximity within the neuritogenic extracellular sequence of PO. This panel of monoclonal antibodies, each binding to a different epitope of the extracellular domain of PO, will be useful for in vitro and in vivo studies designed to explore the role of PO during myelination and in demyelinating diseases of the peripheral nervous system.
KW  - Immunologie
KW  - peripheral nervous system
KW  - myelin
KW  - epitope specificity
KW  - demyelination
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-54889
ER  - 
TY  - JOUR
A1  - Grummt, F.
A1  - Weinmann-Dorsch, C.
A1  - Schneider-Schaulies, Jürgen
A1  - Lux, A.
T1  - Zinc as a second messenger of mitogenic induction
N2  - DNA synthesis and adenosine(S')tetraphosphate(S ')adenosine (Ap.A) levels decrease in cells treated with EDTA. The inhibitory effect of EDTA can be reversed with micro molar amounts of ZnCI2• ZnCh in micromolar concentrations also inhibits Ap.A hydrolase and stimulates amino acid-dependent Ap.A synthesis, suggesting that Zn2+ is modulating intracellular Ap.A pools. Serum addition to GI-arrested cells enhances uptake of Zn, whereas serum depletion leads to a fivefold decrease of the rates of zinc uptake. These results are discussed by regarding Zn2+ as a putative 'second messenger' of mitogenic induction and Ap.A as a possible 'third messenger' and trigger of DNA synthesis.
KW  - Immunologie
Y1  - 1986
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-54799
ER  - 
TY  - JOUR
A1  - Kasprzak, J.
A1  - Sivalertporn, K.
A1  - Albert, F.
A1  - Schneider, C.
A1  - Höfling, S.
A1  - Kamp, M.
A1  - Forchel, A.
A1  - Muljarov, E. A.
A1  - Langbein, W.
T1  - Coherence dynamics and quantum-to-classical crossover in an exciton-cavity system in the quantum strong coupling regime
JF  - New Journal of Physics
N2  - Interaction between light and matter generates optical nonlinearities, which are particularly pronounced in the quantum strong coupling regime. When a single bosonic mode couples to a single fermionic mode, a Jaynes-Cummings (JC) ladder is formed, which we realize here using cavity photons and quantum dot excitons. We measure and model the coherent anharmonic response of this strongly coupled exciton-cavity system at resonance. Injecting two photons into the cavity, we demonstrate a \(\sqrt 2\) larger polariton splitting with respect to the vacuum Rabi splitting. This is achieved using coherent nonlinear spectroscopy, specifically four-wave mixing, where the coherence between the ground state and the first (second) rung of the JC ladder can be interrogated for positive (negative) delays. With increasing excitation intensity and thus rising average number of injected photons, we observe spectral signatures of the quantum-to-classical crossover of the strong coupling regime.
KW  - Jaynes-Cummings ladder
KW  - spectral interferometry
KW  - photon
KW  - dot
KW  - spectroscopy
KW  - oscillations
KW  - microcavity
KW  - resonance
KW  - light
Y1  - 2013
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-123005
SN  - 1367-2630
VL  - 15
IS  - 045013
ER  - 
TY  - JOUR
A1  - Michalski, D.
A1  - Heindl, M.
A1  - Kacza, J.
A1  - Laignel, F.
A1  - Küppers-Tiedt, L.
A1  - Schneider, D.
A1  - Grosche, J.
A1  - Boltze, J.
A1  - Löhr, M.
A1  - Hobohm, C.
A1  - Härtig, W.
T1  - Spatio-temporal course of macrophage-like cell accumulation after experimental embolic stroke depending on treatment with tissue plasminogen activator and its combination with hyperbaric oxygenation
JF  - European Journal of Histochemistry
N2  - Inflammation following ischaemic stroke attracts high priority in current research, particularly using human-like models and long-term observation periods considering translational aspects. The present study aimed on the spatio-temporal course of macrophage-like cell accumulation after experimental thromboembolic stroke and addressed microglial and astroglial reactions in the ischaemic border zone. Further, effects of tissue plasminogen activator (tPA) as currently best treatment for stroke and the potentially neuroprotective co-administration of hyperbaric oxygen (HBO) were investigated. Rats underwent middle cerebral artery occlusion and were assigned to control, tPA or tPA+HBO. Twenty-four hours, 7, 14 and 28 days were determined as observation time points. The accumulation of macrophage-like cells was semiquantitatively assessed by CD68 staining in the ischaemic area and ischaemic border zone, and linked to the clinical course. CD11b, ionized calcium binding adaptor molecule 1 (Iba), glial fibrillary acidic protein (GFAP) and Neuronal Nuclei (NeuN) were applied to reveal delayed glial and neuronal alterations. In all groups, the accumulation of macrophage-like cells increased distinctly from 24 hours to 7 days post ischaemia. tPA+HBO tended to decrease macrophage-like cell accumulation at day 14 and 28. Overall, a trend towards an association of increased accumulation and pronounced reduction of the neurological deficit was found. Concerning delayed inflammatory reactions, an activation of microglia and astrocytes with co-occurring neuronal loss was observed on day 28. Thereby, astrogliosis was found circularly in contrast to microglial activation directly in the ischaemic area. This study supports previous data on long-lasting inflammatory processes following experimental stroke, and additionally provides region-specific details on glial reactions. The tendency towards a decreasing macrophage-like cell accumulation after tPA+HBO needs to be discussed critically since neuroprotective properties were recently ascribed to long-term inflammatory processes.
KW  - blood-brain-barrier
KW  - focal cerebral-ischemia
KW  - experimental stroke
KW  - macrophages
KW  - HBO
KW  - tPA
KW  - tumor-necrosis-factor
KW  - inflammatory mechanisms
KW  - mononuclear phagocytes
KW  - astroglia
KW  - microglia
Y1  - 2012
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-133136
VL  - 56
IS  - 2
SP  - 78
EP  - 89
ER  - 
TY  - JOUR
A1  - Braun, T.
A1  - Schneider, C.
A1  - Maier, S.
A1  - Igusa, R.
A1  - Iwamoto, S.
A1  - Forchel, A.
A1  - Höfling, S.
A1  - Arakawa, Y.
A1  - Kamp, M.
T1  - Temperature dependency of the emission properties from positioned In(Ga)As/GaAs quantum dots
JF  - AIP Advances
N2  - In this letter we study the influence of temperature and excitation power on the emission linewidth from site-controlled InGaAs/GaAs quantum dots grown on nanoholes defined by electron beam lithography and wet chemical etching. We identify thermal electron activation as well as direct exciton loss as the dominant intensity quenching channels. Additionally, we carefully analyze the effects of optical and acoustic phonons as well as close-by defects on the emission linewidth by means of temperature and power dependent micro-photoluminescence on single quantum dots with large pitches. (C) 2014 Author(s).
KW  - GAAS
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-115448
SN  - 2158-3226
VL  - 4
IS  - 9
ER  - 
TY  - JOUR
A1  - Volkert, Julia
A1  - Zierhut, Kathrin C.
A1  - Schiele, Miriam A.
A1  - Wenzel, Martina
A1  - Kopf, Juliane
A1  - Kittel-Schneider, Sarah
A1  - Reif, Andreas
T1  - Predominant polarity in bipolar disorder and validation of the polarity index in a German sample
N2  - Background: A large number of patients with bipolar disorder (BD) can be characterized by predominant polarity (PP), which has important implications for relapse prevention. Recently, Popovic et al. (EUR NEUROPSYCHOPHARM 22(5): 339–346, 2012) proposed the Polarity Index (PI) as a helpful tool in the maintenance treatment of BD. As a numeric expression, it reflects the efficacy of drugs used in treatment of BD. In the present retrospective study, we aimed to validate this Index in a large and well characterized German bipolar sample.
Methods: We investigated 336 bipolar patients (BP) according to their PP and calculated the PI for each patient in order to prove if maintenance treatment differs according to their PP. Furthermore, we analysed whether PP is associated with demographic and clinical characteristics of BP.
Results: In our sample, 63.9% of patients fulfilled criteria of PP: 169 patients were classified as depressive predominant polarity (DPP), 46 patients as manic predominant polarity (MPP). The two groups differed significantly in their drug regime: Patients with DPP were more often medicated with lamotrigine and antidepressants, patients with MPP were more often treated with lithium, valproate, carbamazepine and first generation antipsychotics.
However, patients with DPP and MPP did not differ significantly with respect to the PI, although they received evidence-based and guideline-driven treatment.
Conclusion: The reason for this negative finding might well be that for several drugs, which were used frequently, no PI value is available. Nevertheless we suggest PP as an important concept in the planning of BD maintenance treatment.
KW  - Bipolar disorder
KW  - Predominant polarity
KW  - Polarity index
KW  - Maintenance treatment
KW  - Depression
KW  - Mania
KW  - EBM
Y1  - 2014
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-111042
ER  - 
TY  - JOUR
A1  - Becker, T.
A1  - Franzek, E.
A1  - Jost, C.
A1  - Hofmann, E.
A1  - Schneider, M.
A1  - Stöber, Gerald
T1  - Hirnläsionen bei affektiven Erkrankungen: eine retrospektive CT-Studie
T1  - Cerebral Lesions in Affective Disorders: a Retrospective CT Study
N2  - 46 Patienten mit affektiven Erkrankungen und pathologischem CT wurden untersucht (Infarkt: 22, Kontusion: 6, Leukoaraiose: 11, frühkindlicher Hirnschaden: 7). Monopolar Depressive (DSMIII- R; MD) zeigten oft Leukoaraiose, Infarkte waren mit MD, Kontusionen und frühkindliche Schäden mit bipolarer Erkrankung assoziiert (BP; ANCOV A, p< .1). Kortikale Läsionen waren bei BP häufiger, jedoch fehlten signifikante Effekte von Läsionsort oder -zeitpunkt auf die Polarität der Erkrankung (ANOV A). Bei einigen Infarktpatienten kam es zur Verlaufsänderung (Chronifizierung, Bipolarität) nach Infarkt, alle Post-Infarkt-Ersterkrankungen waren bipolar.
N2  - 46 patients with affective disorder and a pathologic CT scan were studied (infarct: 22, brain trauma: 6, leukoaraiosis: 11 , perinatal brain damage: 7). Unipolar depressives (DSM-I1I-R; MD) frequently had le ukoaraiosis, brain infarct was associated with unipolar depression , brain trauma and perinatal damage with bipolar illness (BP; ANCOV A , p < .1). Corticallesions were more frequ ent in BP, but ANOV A revealed no significant effect of lesion location and time of insu lt on illness polarity. In some patients with stroke course of illness changed (Ionger phases, bipolarity), first onset post-stroke went along with bipolar illness.
KW  - Psychiatrie
KW  - Klinische Psychiatrie
KW  - Gemeindepsychiatrie
KW  - organische affektive Störungen
KW  - Hirninfarkt
KW  - Kontusion
KW  - Frühkindlicher Hirnschaden
KW  - Leukoaraiose
KW  - Secondary affective disorder
KW  - Poststroke depression
KW  - Brain trauma
KW  - Perinatal brain damage
KW  - Leukoaraiosis
Y1  - 1994
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-82237
ER  - 
TY  - CHAP
A1  - Näslung, J. C.
A1  - Schneider, Wolfgang
T1  - Emerging literacy from kindergarten to second grade: Evidence from the Munich Longitudinal Study on the Genesis of Individual Competencies
N2  - No abstract available
KW  - Psychologie
Y1  - 1993
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-50513
ER  - 
TY  - CHAP
A1  - Schneider, Wolfgang
A1  - Möbus, C.
T1  - Vorwort zu: Strukturmodelle für Längsschnittdaten und Zeitreihen : LISREL, Pfad- und Varianzanalysen / Claus Möbus und Wolfgang Schneider [Hrsg.]
N2  - No abstract available
KW  - LISREL
KW  - Kausalmodell
KW  - Längsschnittuntersuchung
KW  - Varianzanalyse
KW  - Pfadanalyse
Y1  - 1986
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-50433
ER  - 
TY  - JOUR
A1  - Rayner, Christopher
A1  - Coleman, Jonathan R. I.
A1  - Purves, Kirstin L.
A1  - Hodsoll, John
A1  - Goldsmith, Kimberley
A1  - Alpers, Georg W.
A1  - Andersson, Evelyn
A1  - Arolt, Volker
A1  - Boberg, Julia
A1  - Bögels, Susan
A1  - Creswell, Cathy
A1  - Cooper, Peter
A1  - Curtis, Charles
A1  - Deckert, Jürgen
A1  - Domschke, Katharina
A1  - El Alaoui, Samir
A1  - Fehm, Lydia
A1  - Fydrich, Thomas
A1  - Gerlach, Alexander L.
A1  - Grocholewski, Anja
A1  - Hahlweg, Kurt
A1  - Hamm, Alfons
A1  - Hedman, Erik
A1  - Heiervang, Einar R.
A1  - Hudson, Jennifer L.
A1  - Jöhren, Peter
A1  - Keers, Robert
A1  - Kircher, Tilo
A1  - Lang, Thomas
A1  - Lavebratt, Catharina
A1  - Lee, Sang-hyuck
A1  - Lester, Kathryn J.
A1  - Lindefors, Nils
A1  - Margraf, Jürgen
A1  - Nauta, Maaike
A1  - Pané-Farré, Christiane A.
A1  - Pauli, Paul
A1  - Rapee, Ronald M.
A1  - Reif, Andreas
A1  - Rief, Winfried
A1  - Roberts, Susanna
A1  - Schalling, Martin
A1  - Schneider, Silvia
A1  - Silverman, Wendy K.
A1  - Ströhle, Andreas
A1  - Teismann, Tobias
A1  - Thastum, Mikael
A1  - Wannemüller, Andre
A1  - Weber, Heike
A1  - Wittchen, Hans-Ulrich
A1  - Wolf, Christiane
A1  - Rück, Christian
A1  - Breen, Gerome
A1  - Eley, Thalia C.
T1  - A genome-wide association meta-analysis of prognostic outcomes following cognitive behavioural therapy in individuals with anxiety and depressive disorders
JF  - Translational Psychiatry
N2  - Major depressive disorder and the anxiety disorders are highly prevalent, disabling and moderately heritable. Depression and anxiety are also highly comorbid and have a strong genetic correlation (r(g) approximate to 1). Cognitive behavioural therapy is a leading evidence-based treatment but has variable outcomes. Currently, there are no strong predictors of outcome. Therapygenetics research aims to identify genetic predictors of prognosis following therapy. We performed genome-wide association meta-analyses of symptoms following cognitive behavioural therapy in adults with anxiety disorders (n = 972), adults with major depressive disorder (n = 832) and children with anxiety disorders (n = 920; meta-analysis n = 2724). We (h(SNP)(2)) and polygenic scoring was used to examine genetic associations between therapy outcomes and psychopathology, personality and estimated the variance in therapy outcomes that could be explained by common genetic variants learning. No single nucleotide polymorphisms were strongly associated with treatment outcomes. No significant estimate of h(SNP)(2) could be obtained, suggesting the heritability of therapy outcome is smaller than our analysis was powered to detect. Polygenic scoring failed to detect genetic overlap between therapy outcome and psychopathology, personality or learning. This study is the largest therapygenetics study to date. Results are consistent with previous, similarly powered genome-wide association studies of complex traits.
KW  - Human behaviour
KW  - Personalized medicine
KW  - Prognostic markers
KW  - Psychiatric disorders
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-225048
VL  - 9
IS  - 150
ER  - 
TY  - JOUR
A1  - Schoffer, Olaf
A1  - Schülein, Stefanie
A1  - Arand, Gerlinde
A1  - Arnholdt, Hans
A1  - Baaske, Dieter
A1  - Bargou, Ralf C.
A1  - Becker, Nikolaus
A1  - Beckmann, Matthias W.
A1  - Bodack, Yves
A1  - Böhme, Beatrix
A1  - Bozkurt, Tayfun
A1  - Breitsprecher, Regine
A1  - Buchali, Andre
A1  - Burger, Elke
A1  - Burger, Ulrike
A1  - Dommisch, Klaus
A1  - Elsner, Gudrun
A1  - Fernschild, Karin
A1  - Flintzer, Ulrike
A1  - Funke, Uwe
A1  - Gerken, Michael
A1  - Göbel, Hubert
A1  - Grobe, Norbert
A1  - Gumpp, Vera
A1  - Heinzerling, Lucie
A1  - Kempfer, Lana Raffaela
A1  - Kiani, Alexander
A1  - Klinkhammer-Schalke, Monika
A1  - Klöcking, Sabine
A1  - Kreibich, Ute
A1  - Knabner, Katrin
A1  - Kuhn, Peter
A1  - Lutze, Stine
A1  - Mäder, Uwe
A1  - Maisel, Tanja
A1  - Maschke, Jan
A1  - Middeke, Martin
A1  - Neubauer, Andreas
A1  - Niedostatek, Antje
A1  - Opazo-Saez, Anabelle
A1  - Peters, Christoph
A1  - Schell, Beatrice
A1  - Schenkirsch, Gerhard
A1  - Schmalenberg, Harald
A1  - Schmidt, Peter
A1  - Schneider, Constanze
A1  - Schubotz, Birgit
A1  - Seide, Anika
A1  - Strecker, Paul
A1  - Taubenheim, Sabine
A1  - Wackes, Matthias
A1  - Weiß, Steffen
A1  - Welke, Claudia
A1  - Werner, Carmen
A1  - Wittekind, Christian
A1  - Wulff, Jörg
A1  - Zettl, Heike
A1  - Klug, Stefanie J.
T1  - Tumour stage distribution and survival of malignant melanoma in Germany 2002-2011
JF  - BMC Cancer
N2  - Background

Over the past two decades, there has been a rising trend in malignant melanoma incidence worldwide. In 2008, Germany introduced a nationwide skin cancer screening program starting at age 35. The aims of this study were to analyse the distribution of malignant melanoma tumour stages over time, as well as demographic and regional differences in stage distribution and survival of melanoma patients.

Methods

Pooled data from 61 895 malignant melanoma patients diagnosed between 2002 and 2011 and documented in 28 German population-based and hospital-based clinical cancer registries were analysed using descriptive methods, joinpoint regression, logistic regression and relative survival.

Results

The number of annually documented cases increased by 53.2% between 2002 (N = 4 779) and 2011 (N = 7 320). There was a statistically significant continuous positive trend in the proportion of stage UICC I cases diagnosed between 2002 and 2011, compared to a negative trend for stage UICC II. No trends were found for stages UICC III and IV respectively. Age (OR 0.97, 95% CI 0.97–0.97), sex (OR 1.18, 95% CI 1.11–1.25), date of diagnosis (OR 1.05, 95% CI 1.04–1.06), ‘diagnosis during screening’ (OR 3.24, 95% CI 2.50–4.19) and place of residence (OR 1.23, 95% CI 1.16–1.30) had a statistically significant influence on the tumour stage at diagnosis. The overall 5-year relative survival for invasive cases was 83.4% (95% CI 82.8–83.9%).

Conclusions

No distinct changes in the distribution of malignant melanoma tumour stages among those aged 35 and older were seen that could be directly attributed to the introduction of skin cancer screening in 2008.
"
KW  - Malignant melanoma
KW  - TNM staging
KW  - Survival analysis
KW  - Skin cancer screening
KW  - Stage distribution
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-164544
VL  - 16
IS  - 936
ER  - 
TY  - JOUR
A1  - Kochereshko, Vladimir P.
A1  - Durnev, Mikhail V.
A1  - Besombes, Lucien
A1  - Mariette, Henri
A1  - Sapega, Victor F.
A1  - Askitopoulos, Alexis
A1  - Savenko, Ivan G.
A1  - Liew, Timothy C. H.
A1  - Shelykh, Ivan A.
A1  - Platonov, Alexey V.
A1  - Tsintzos, Simeon I.
A1  - Hatzopoulos, Z.
A1  - Savvidis, Pavlos G.
A1  - Kalevich, Vladimir K.
A1  - Afanasiev, Mikhail M.
A1  - Lukoshkin, Vladimir A.
A1  - Schneider, Christian
A1  - Amthor, Matthias
A1  - Metzger, Christian
A1  - Kamp, Martin
A1  - Hoefling, Sven
A1  - Lagoudakis, Pavlos
A1  - Kavokin, Alexey
T1  - Lasing in Bose-Fermi mixtures
JF  - Scientific Reports
N2  - Light amplification by stimulated emission of radiation, well-known for revolutionising photonic science, has been realised primarily in fermionic systems including widely applied diode lasers. The prerequisite for fermionic lasing is the inversion of electronic population, which governs the lasing threshold. More recently, bosonic lasers have also been developed based on Bose-Einstein condensates of exciton-polaritons in semiconductor microcavities. These electrically neutral bosons coexist with charged electrons and holes. In the presence of magnetic fields, the charged particles are bound to their cyclotron orbits, while the neutral exciton-polaritons move freely. We demonstrate how magnetic fields affect dramatically the phase diagram of mixed Bose-Fermi systems, switching between fermionic lasing, incoherent emission and bosonic lasing regimes in planar and pillar microcavities with optical and electrical pumping. We collected and analyzed the data taken on pillar and planar microcavity structures at continuous wave and pulsed optical excitation as well as injecting electrons and holes electronically. Our results evidence the transition from a Bose gas to a Fermi liquid mediated by magnetic fields and light-matter coupling.
KW  - Bose-Fermi
KW  - magnetic fields
KW  - Bose gas
KW  - Fermi liquid
KW  - light-matter coupling
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-168152
VL  - 6
IS  - 20091
ER  - 
TY  - JOUR
A1  - Schischlevskij, Pavel
A1  - Cordts, Isabell
A1  - Günther, René
A1  - Stolte, Benjamin
A1  - Zeller, Daniel
A1  - Schröter, Carsten
A1  - Weyen, Ute
A1  - Regensburger, Martin
A1  - Wolf, Joachim
A1  - Schneider, Ilka
A1  - Hermann, Andreas
A1  - Metelmann, Moritz
A1  - Kohl, Zacharias
A1  - Linker, Ralf A.
A1  - Koch, Jan Christoph
A1  - Stendel, Claudia
A1  - Müschen, Lars H.
A1  - Osmanovic, Alma
A1  - Binz, Camilla
A1  - Klopstock, Thomas
A1  - Dorst, Johannes
A1  - Ludolph, Albert C.
A1  - Boentert, Matthias
A1  - Hagenacker, Tim
A1  - Deschauer, Marcus
A1  - Lingor, Paul
A1  - Petri, Susanne
A1  - Schreiber-Katz, Olivia
T1  - Informal caregiving in amyotrophic lateral sclerosis (ALS): a high caregiver burden and drastic consequences on caregivers' lives
JF  - Brain Sciences
N2  - Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease that causes progressive autonomy loss and need for care. This does not only affect patients themselves, but also the patients’ informal caregivers (CGs) in their health, personal and professional lives. The big efforts of this multi-center study were not only to evaluate the caregivers' burden and to identify its predictors, but it also should provide a specific understanding of the needs of ALS patients' CGs and fill the gap of knowledge on their personal and work lives. Using standardized questionnaires, primary data from patients and their main informal CGs (n = 249) were collected. Patients' functional status and disease severity were evaluated using the Barthel Index, the revised Amyotrophic Lateral Sclerosis Functional Rating Scale (ALSFRS-R) and the King’s Stages for ALS. The caregivers' burden was recorded by the Zarit Burden Interview (ZBI). Comorbid anxiety and depression of caregivers were assessed by the Hospital Anxiety and Depression Scale. Additionally, the EuroQol Five Dimension Five Level Scale evaluated their health-related quality of life. The caregivers' burden was high (mean ZBI = 26/88, 0 = no burden, ≥24 = highly burdened) and correlated with patients' functional status (r\(_p\) = −0.555, p < 0.001, n = 242). It was influenced by the CGs' own mental health issues due to caregiving (+11.36, 95% CI [6.84; 15.87], p < 0.001), patients' wheelchair dependency (+9.30, 95% CI [5.94; 12.66], p < 0.001) and was interrelated with the CGs' depression (r\(_p\) = 0.627, p < 0.001, n = 234), anxiety (r\(_p\) = 0.550, p < 0.001, n = 234), and poorer physical condition (r\(_p\) = −0.362, p < 0.001, n = 237). Moreover, female CGs showed symptoms of anxiety more often, which also correlated with the patients' impairment in daily routine (r\(_s\) = −0.280, p < 0.001, n = 169). As increasing disease severity, along with decreasing autonomy, was the main predictor of caregiver burden and showed to create relevant (negative) implications on CGs' lives, patient care and supportive therapies should address this issue. Moreover, in order to preserve the mental and physical health of the CGs, new concepts of care have to focus on both, on not only patients but also their CGs and gender-associated specific issues. As caregiving in ALS also significantly influences the socioeconomic status by restrictions in CGs' work lives and income, and the main reported needs being lack of psychological support and a high bureaucracy, the situation of CGs needs more attention. Apart from their own multi-disciplinary medical and psychological care, more support in care and patient management issues is required.
KW  - amyotrophic lateral sclerosis (ALS)
KW  - informal caregiving
KW  - caregiver burden
KW  - functional status
KW  - decreasing autonomy
KW  - depression
KW  - anxiety
KW  - health-related quality of life
KW  - socioeconomic status
KW  - psychological support
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-240981
SN  - 2076-3425
VL  - 11
IS  - 6
ER  - 
TY  - JOUR
A1  - Peseschkian, Tara
A1  - Cordts, Isabell
A1  - Günther, René
A1  - Stolte, Benjamin
A1  - Zeller, Daniel
A1  - Schröter, Carsten
A1  - Weyen, Ute
A1  - Regensburger, Martin
A1  - Wolf, Joachim
A1  - Schneider, Ilka
A1  - Hermann, Andreas
A1  - Metelmann, Moritz
A1  - Kohl, Zacharias
A1  - Linker, Ralf A.
A1  - Koch, Jan Christoph
A1  - Büchner, Boriana
A1  - Weiland, Ulrike
A1  - Schönfelder, Erik
A1  - Heinrich, Felix
A1  - Osmanovic, Alma
A1  - Klopstock, Thomas
A1  - Dorst, Johannes
A1  - Ludolph, Albert C.
A1  - Boentert, Matthias
A1  - Hagenacker, Tim
A1  - Deschauer, Marcus
A1  - Lingor, Paul
A1  - Petri, Susanne
A1  - Schreiber-Katz, Olivia
T1  - A nation-wide, multi-center study on the quality of life of ALS patients in Germany
JF  - Brain Sciences
N2  - Improving quality of life (QoL) is central to amyotrophic lateral sclerosis (ALS) treatment. This Germany-wide, multicenter cross-sectional study analyses the impact of different symptom-specific treatments and ALS variants on QoL. Health-related QoL (HRQoL) in 325 ALS patients was assessed using the Amyotrophic Lateral Sclerosis Assessment Questionnaire 5 (ALSAQ-5) and EuroQol Five Dimension Five Level Scale (EQ-5D-5L), together with disease severity (captured by the revised ALS Functional Rating Scale (ALSFRS-R)) and the current care and therapies used by our cohort. At inclusion, the mean ALSAQ-5 total score was 56.93 (max. 100, best = 0) with a better QoL associated with a less severe disease status (β = −1.96 per increase of one point in the ALSFRS-R score, p < 0.001). “Limb-onset” ALS (lALS) was associated with a better QoL than “bulbar-onset” ALS (bALS) (mean ALSAQ-5 total score 55.46 versus 60.99, p = 0.040). Moreover, with the ALSFRS-R as a covariate, using a mobility aid (β = −7.60, p = 0.001), being tracheostomized (β = −14.80, p = 0.004) and using non-invasive ventilation (β = −5.71, p = 0.030) were associated with an improved QoL, compared to those at the same disease stage who did not use these aids. In contrast, antidepressant intake (β = 5.95, p = 0.007), and increasing age (β = 0.18, p = 0.023) were predictors of worse QoL. Our results showed that the ALSAQ-5 was better-suited for ALS patients than the EQ-5D-5L. Further, the early and symptom-specific clinical management and supply of assistive devices can significantly improve the individual HRQoL of ALS patients. Appropriate QoL questionnaires are needed to monitor the impact of treatment to provide the best possible and individualized care.
KW  - Amyotrophic Lateral Sclerosis (ALS)
KW  - Amyotrophic Lateral Sclerosis Assessment Questionnaire 5 (ALSAQ-5)
KW  - ALS treatment
KW  - “bulbar-onset” ALS (bALS)
KW  - “limb-onset” ALS (lALS)
KW  - EuroQol Five Dimension Five Level Scale (EQ-5D-5L)
KW  - health-related quality of life (HRQoL)
KW  - quality of life (QoL)
KW  - symptom-specific treatment
KW  - assistive devices
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-234147
SN  - 2076-3425
VL  - 11
IS  - 3
ER  - 
TY  - JOUR
A1  - Beierlein, J.
A1  - Egorov, O. A.
A1  - Harder, T. H.
A1  - Gagel, P.
A1  - Emmerling, M.
A1  - Schneider, C.
A1  - Höfling, S.
A1  - Peschel, U.
A1  - Klembt, S.
T1  - Bloch Oscillations of Hybrid Light‐Matter Particles in a Waveguide Array
JF  - Advanced Optical Materials
N2  - 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.
KW  - Bloch oscillations
KW  - exciton‐polaritons
KW  - polariton condensation
KW  - waveguides
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-239814
VL  - 9
IS  - 13
ER  - 
TY  - JOUR
A1  - Estrecho, E.
A1  - Gao, T.
A1  - Brodbeck, S.
A1  - Kamp, M.
A1  - Schneider, C.
A1  - Höfling, S.
A1  - Truscott, A. G.
A1  - Ostrovskaya, E. A.
T1  - Visualising Berry phase and diabolical points in a quantum exciton-polariton billiard
JF  - Scientific Reports
N2  - Diabolical points (spectral degeneracies) can naturally occur in spectra of two-dimensional quantum systems and classical wave resonators due to simple symmetries. Geometric Berry phase is associated with these spectral degeneracies. Here, we demonstrate a diabolical point and the corresponding Berry phase in the spectrum of hybrid light-matter quasiparticles—exciton-polaritons in semiconductor microcavities. It is well known that sufficiently strong optical pumping can drive exciton-polaritons to quantum degeneracy, whereby they form a macroscopically populated quantum coherent state similar to a Bose-Einstein condensate. By pumping a microcavity with a spatially structured light beam, we create a two-dimensional quantum billiard for the exciton-polariton condensate and demonstrate a diabolical point in the spectrum of the billiard eigenstates. The fully reconfigurable geometry of the potential walls controlled by the optical pump enables a striking experimental visualization of the Berry phase associated with the diabolical point. The Berry phase is observed and measured by direct imaging of the macroscopic exciton-polariton probability densities.
KW  - Berry phase
KW  - diabolical points
KW  - quantum billiard
KW  - exciton-polariton
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-167496
VL  - 6
IS  - 37653
ER  - 
TY  - JOUR
A1  - McNeill, Rhiannon V.
A1  - Ziegler, Georg C.
A1  - Radtke, Franziska
A1  - Nieberler, Matthias
A1  - Lesch, Klaus‑Peter
A1  - Kittel‑Schneider, Sarah
T1  - Mental health dished up — the use of iPSC models in neuropsychiatric research
JF  - Journal of Neural Transmission
N2  - Genetic and molecular mechanisms that play a causal role in mental illnesses are challenging to elucidate, particularly as there is a lack of relevant in vitro and in vivo models. However, the advent of induced pluripotent stem cell (iPSC) technology has provided researchers with a novel toolbox. We conducted a systematic review using the PRISMA statement. A PubMed and Web of Science online search was performed (studies published between 2006–2020) using the following search strategy: hiPSC OR iPSC OR iPS OR stem cells AND schizophrenia disorder OR personality disorder OR antisocial personality disorder OR psychopathy OR bipolar disorder OR major depressive disorder OR obsessive compulsive disorder OR anxiety disorder OR substance use disorder OR alcohol use disorder OR nicotine use disorder OR opioid use disorder OR eating disorder OR anorexia nervosa OR attention-deficit/hyperactivity disorder OR gaming disorder. Using the above search criteria, a total of 3515 studies were found. After screening, a final total of 56 studies were deemed eligible for inclusion in our study. Using iPSC technology, psychiatric disease can be studied in the context of a patient’s own unique genetic background. This has allowed great strides to be made into uncovering the etiology of psychiatric disease, as well as providing a unique paradigm for drug testing. However, there is a lack of data for certain psychiatric disorders and several limitations to present iPSC-based studies, leading us to discuss how this field may progress in the next years to increase its utility in the battle to understand psychiatric disease.
KW  - hiPSC
KW  - iPSC
KW  - stem cells
KW  - mental disorders
KW  - affective disorders
KW  - ADHD
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-235666
SN  - 0300-9564
VL  - 127
ER  - 
TY  - JOUR
A1  - Semler, Elisa
A1  - Anderl-Straub, Sarah
A1  - Uttner, Ingo
A1  - Diehl-Schmid, Janine
A1  - Danek, Adrian
A1  - Einsiedler, Beate
A1  - Fassbender, Klaus
A1  - Fliessbach, Klaus
A1  - Huppertz, Hans-Jürgen
A1  - Jahn, Holger
A1  - Kornhuber, Johannes
A1  - Landwehrmeyer, Bernhard
A1  - Lauer, Martin
A1  - Muche, Rainer
A1  - Prudlo, Johannes
A1  - Schneider, Anja
A1  - Schroeter, Matthias L.
A1  - Ludolph, Albert C.
A1  - Otto, Markus
T1  - A language-based sum score for the course and therapeutic intervention in primary progressive aphasia
JF  - Alzheimer's Research & Therapy
N2  - Background
With upcoming therapeutic interventions for patients with primary progressive aphasia (PPA), instruments for the follow-up of patients are needed to describe disease progression and to evaluate potential therapeutic effects. So far, volumetric brain changes have been proposed as clinical endpoints in the literature, but cognitive scores are still lacking. This study followed disease progression predominantly in language-based performance within 1 year and defined a PPA sum score which can be used in therapeutic interventions.

Methods
We assessed 28 patients with nonfluent variant PPA, 17 with semantic variant PPA, 13 with logopenic variant PPA, and 28 healthy controls in detail for 1 year. The most informative neuropsychological assessments were combined to a sum score, and associations between brain atrophy were investigated followed by a sample size calculation for clinical trials.

Results
Significant absolute changes up to 20% in cognitive tests were found after 1 year. Semantic and phonemic word fluency, Boston Naming Test, Digit Span, Token Test, AAT Written language, and Cookie Test were identified as the best markers for disease progression. These tasks provide the basis of a new PPA sum score. Assuming a therapeutic effect of 50% reduction in cognitive decline for sample size calculations, a number of 56 cases is needed to find a significant treatment effect. Correlations between cognitive decline and atrophy showed a correlation up to r = 0.7 between the sum score and frontal structures, namely the superior and inferior frontal gyrus, as well as with left-sided subcortical structures.

Conclusion
Our findings support the high performance of the proposed sum score in the follow-up of PPA and recommend it as an outcome measure in intervention studies.
KW  - frontotemporal dementia
KW  - cognitive neuropsychology in dementia
KW  - assessment of cognitive disorders/dementia
KW  - volumetric MRI
KW  - aphasia
Y1  - 2018
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-236277
VL  - 10
ER  - 
TY  - JOUR
A1  - Albrecht, Franziska
A1  - Mueller, Karsten
A1  - Ballarini, Tommaso
A1  - Lampe, Leonie
A1  - Diehl-Schmid, Janine
A1  - Fassbender, Klaus
A1  - Fliessbach, Klaus
A1  - Jahn, Holger
A1  - Jech, Robert
A1  - Kassubek, Jan
A1  - Kornhuber, Johannes
A1  - Landwehrmeyer, Bernhard
A1  - Lauer, Martin
A1  - Ludolph, Albert C.
A1  - Lyros, Epameinondas
A1  - Prudlo, Johannes
A1  - Schneider, Anja
A1  - Synofzik, Matthis
A1  - Wiltfang, Jens
A1  - Danek, Adrian
A1  - Otto, Markus
A1  - Schroeter, Matthias L.
T1  - Unraveling corticobasal syndrome and alien limb syndrome with structural brain imaging
JF  - Cortex
N2  - Alien limb phenomenon is a rare syndrome associated with a feeling of non-belonging and disowning toward one's limb. In contrast, anarchic limb phenomenon leads to involuntary but goal-directed movements. Alien/anarchic limb phenomena are frequent in corticobasal syndrome (CBS), an atypical parkinsonian syndrome characterized by rigidity, akinesia, dystonia, cortical sensory deficit, and apraxia. The structure function relationship of alien/anarchic limb was investigated in multi centric structural magnetic resonance imaging (MRI) data. Whole-group and single subject comparisons were made in 25 CBS and eight CBS-alien/anarchic limb patients versus controls. Support vector machine was used to see if CBS with and without alien/anarchic limb could be distinguished by structural MRI patterns. Whole-group comparison of CBS versus controls revealed asymmetric frontotemporal atrophy. CBS with alien/anarchic limb syndrome versus controls showed frontoparietal atrophy including the supplementary motor area contralateral to the side of the affected limb. Exploratory analysis identified frontotemporal regions encompassing the pre-/and postcentral gyrus as compromised in CBS with alien limb syndrome. Classification of CBS patients yielded accuracies of 79%. CBS-alien/anarchic limb syndrome was differentiated from CBS patients with an accuracy of 81%. Predictive differences were found in the cingulate gyrus spreading to frontomedian cortex, postcentral gyrus, and temporoparietoocipital regions. We present the first MRI-based group analysis on CBS-alien/anarchic limb. Results pave the way for individual clinical syndrome prediction and allow understanding the underlying neurocognitive architecture. (C) 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
KW  - Alien limb syndrome
KW  - Anarchic limb syndrome
KW  - Corticobasal syndrome
KW  - Diagnosis prediction
KW  - Support vector machine
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-221040
VL  - 117
ER  - 
TY  - JOUR
A1  - El-Helou, Sabine M.
A1  - Biegner, Anika-Kerstin
A1  - Bode, Sebastian
A1  - Ehl, Stephan R.
A1  - Heeg, Maximilian
A1  - Maccari, Maria E.
A1  - Ritterbusch, Henrike
A1  - Speckmann, Carsten
A1  - Rusch, Stephan
A1  - Scheible, Raphael
A1  - Warnatz, Klaus
A1  - Atschekzei, Faranaz
A1  - Beider, Renata
A1  - Ernst, Diana
A1  - Gerschmann, Stev
A1  - Jablonka, Alexandra
A1  - Mielke, Gudrun
A1  - Schmidt, Reinhold E.
A1  - Schürmann, Gesine
A1  - Sogkas, Georgios
A1  - Baumann, Ulrich H.
A1  - Klemann, Christian
A1  - Viemann, Dorothee
A1  - Bernuth, Horst von
A1  - Krüger, Renate
A1  - Hanitsch, Leif G.
A1  - Scheibenbogen, Carmen M.
A1  - Wittke, Kirsten
A1  - Albert, Michael H.
A1  - Eichinger, Anna
A1  - Hauck, Fabian
A1  - Klein, Christoph
A1  - Rack-Hoch, Anita
A1  - Sollinger, Franz M.
A1  - Avila, Anne
A1  - Borte, Michael
A1  - Borte, Stephan
A1  - Fasshauer, Maria
A1  - Hauenherm, Anja
A1  - Kellner, Nils
A1  - Müller, Anna H.
A1  - Ülzen, Anett
A1  - Bader, Peter
A1  - Bakhtiar, Shahrzad
A1  - Lee, Jae-Yun
A1  - Heß, Ursula
A1  - Schubert, Ralf
A1  - Wölke, Sandra
A1  - Zielen, Stefan
A1  - Ghosh, Sujal
A1  - Laws, Hans-Juergen
A1  - Neubert, Jennifer
A1  - Oommen, Prasad T.
A1  - Hönig, Manfred
A1  - Schulz, Ansgar
A1  - Steinmann, Sandra
A1  - Klaus, Schwarz
A1  - Dückers, Gregor
A1  - Lamers, Beate
A1  - Langemeyer, Vanessa
A1  - Niehues, Tim
A1  - Shai, Sonu
A1  - Graf, Dagmar
A1  - Müglich, Carmen
A1  - Schmalzing, Marc T.
A1  - Schwaneck, Eva C.
A1  - Tony, Hans-Peter
A1  - Dirks, Johannes
A1  - Haase, Gabriele
A1  - Liese, Johannes G.
A1  - Morbach, Henner
A1  - Foell, Dirk
A1  - Hellige, Antje
A1  - Wittkowski, Helmut
A1  - Masjosthusmann, Katja
A1  - Mohr, Michael
A1  - Geberzahn, Linda
A1  - Hedrich, Christian M.
A1  - Müller, Christiane
A1  - Rösen-Wolff, Angela
A1  - Roesler, Joachim
A1  - Zimmermann, Antje
A1  - Behrends, Uta
A1  - Rieber, Nikolaus
A1  - Schauer, Uwe
A1  - Handgretinger, Rupert
A1  - Holzer, Ursula
A1  - Henes, Jörg
A1  - Kanz, Lothar
A1  - Boesecke, Christoph
A1  - Rockstroh, Jürgen K.
A1  - Schwarze-Zander, Carolynne
A1  - Wasmuth, Jan-Christian
A1  - Dilloo, Dagmar
A1  - Hülsmann, Brigitte
A1  - Schönberger, Stefan
A1  - Schreiber, Stefan
A1  - Zeuner, Rainald
A1  - Ankermann, Tobias
A1  - Bismarck, Philipp von
A1  - Huppertz, Hans-Iko
A1  - Kaiser-Labusch, Petra
A1  - Greil, Johann
A1  - Jakoby, Donate
A1  - Kulozik, Andreas E.
A1  - Metzler, Markus
A1  - Naumann-Bartsch, Nora
A1  - Sobik, Bettina
A1  - Graf, Norbert
A1  - Heine, Sabine
A1  - Kobbe, Robin
A1  - Lehmberg, Kai
A1  - Müller, Ingo
A1  - Herrmann, Friedrich
A1  - Horneff, Gerd
A1  - Klein, Ariane
A1  - Peitz, Joachim
A1  - Schmidt, Nadine
A1  - Bielack, Stefan
A1  - Groß-Wieltsch, Ute
A1  - Classen, Carl F.
A1  - Klasen, Jessica
A1  - Deutz, Peter
A1  - Kamitz, Dirk
A1  - Lassy, Lisa
A1  - Tenbrock, Klaus
A1  - Wagner, Norbert
A1  - Bernbeck, Benedikt
A1  - Brummel, Bastian
A1  - Lara-Villacanas, Eusebia
A1  - Münstermann, Esther
A1  - Schneider, Dominik T.
A1  - Tietsch, Nadine
A1  - Westkemper, Marco
A1  - Weiß, Michael
A1  - Kramm, Christof
A1  - Kühnle, Ingrid
A1  - Kullmann, Silke
A1  - Girschick, Hermann
A1  - Specker, Christof
A1  - Vinnemeier-Laubenthal, Elisabeth
A1  - Haenicke, Henriette
A1  - Schulz, Claudia
A1  - Schweigerer, Lothar
A1  - Müller, Thomas G.
A1  - Stiefel, Martina
A1  - Belohradsky, Bernd H.
A1  - Soetedjo, Veronika
A1  - Kindle, Gerhard
A1  - Grimbacher, Bodo
T1  - The German national registry of primary immunodeficiencies (2012-2017)
JF  - Frontiers in Immunology
N2  - Introduction: The German PID-NET registry was founded in 2009, serving as the first national registry of patients with primary immunodeficiencies (PID) in Germany. It is part of the European Society for Immunodeficiencies (ESID) registry. The primary purpose of the registry is to gather data on the epidemiology, diagnostic delay, diagnosis, and treatment of PIDs. 

Methods: Clinical and laboratory data was collected from 2,453 patients from 36 German PID centres in an online registry. Data was analysed with the software Stata® and Excel. 

Results: The minimum prevalence of PID in Germany is 2.72 per 100,000 inhabitants. Among patients aged 1-25, there was a clear predominance of males. The median age of living patients ranged between 7 and 40 years, depending on the respective PID. Predominantly antibody disorders were the most prevalent group with 57% of all 2,453 PID patients (including 728 CVID patients). A gene defect was identified in 36% of patients. Familial cases were observed in 21% of patients. The age of onset for presenting symptoms ranged from birth to late adulthood (range 0-88 years). Presenting symptoms comprised infections (74%) and immune dysregulation (22%). Ninety-three patients were diagnosed without prior clinical symptoms. Regarding the general and clinical diagnostic delay, no PID had undergone a slight decrease within the last decade. However, both, SCID and hyper IgE-syndrome showed a substantial improvement in shortening the time between onset of symptoms and genetic diagnosis. Regarding treatment, 49% of all patients received immunoglobulin G (IgG) substitution (70%-subcutaneous; 29%-intravenous; 1%-unknown). Three-hundred patients underwent at least one hematopoietic stem cell transplantation (HSCT). Five patients had gene therapy. 

Conclusion: The German PID-NET registry is a precious tool for physicians, researchers, the pharmaceutical industry, politicians, and ultimately the patients, for whom the outcomes will eventually lead to a more timely diagnosis and better treatment.
KW  - registry for primary immunodeficiency
KW  - primary immunodeficiency (PID)
KW  - German PID-NET registry
KW  - PID prevalence
KW  - European Society for Immunodeficiencies (ESID)
KW  - IgG substitution therapy
KW  - CVID
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-226629
VL  - 10
ER  - 
TY  - JOUR
A1  - Dörk, Thilo
A1  - Peterlongo, Peter
A1  - Mannermaa, Arto
A1  - Bolla, Manjeet K.
A1  - Wang, Qin
A1  - Dennis, Joe
A1  - Ahearn, Thomas
A1  - Andrulis, Irene L.
A1  - Anton-Culver, Hoda
A1  - Arndt, Volker
A1  - Aronson, Kristan J.
A1  - Augustinsson, Annelie
A1  - Beane Freeman, Laura E.
A1  - Beckmann, Matthias W.
A1  - Beeghly-Fadiel, Alicia
A1  - Behrens, Sabine
A1  - Bermisheva, Marina
A1  - Blomqvist, Carl
A1  - Bogdanova, Natalia V.
A1  - Bojesen, Stig E.
A1  - Brauch, Hiltrud
A1  - Brenner, Hermann
A1  - Burwinkel, Barbara
A1  - Canzian, Federico
A1  - Chan, Tsun L.
A1  - Chang-Claude, Jenny
A1  - Chanock, Stephen J.
A1  - Choi, Ji-Yeob
A1  - Christiansen, Hans
A1  - Clarke, Christine L.
A1  - Couch, Fergus J.
A1  - Czene, Kamila
A1  - Daly, Mary B.
A1  - dos-Santos-Silva, Isabel
A1  - Dwek, Miriam
A1  - Eccles, Diana M.
A1  - Ekici, Arif B.
A1  - Eriksson, Mikael
A1  - Evans, D. Gareth
A1  - Fasching, Peter A.
A1  - Figueroa, Jonine
A1  - Flyger, Henrik
A1  - Fritschi, Lin
A1  - Gabrielson, Marike
A1  - Gago-Dominguez, Manuela
A1  - Gao, Chi
A1  - Gapstur, Susan M.
A1  - García-Closas, Montserrat
A1  - García-Sáenz, José A.
A1  - Gaudet, Mia M.
A1  - Giles, Graham G.
A1  - Goldberg, Mark S.
A1  - Goldgar, David E.
A1  - Guenél, Pascal
A1  - Haeberle, Lothar
A1  - Haimann, Christopher A.
A1  - Håkansson, Niclas
A1  - Hall, Per
A1  - Hamann, Ute
A1  - Hartman, Mikael
A1  - Hauke, Jan
A1  - Hein, Alexander
A1  - Hillemanns, Peter
A1  - Hogervorst, Frans B. L.
A1  - Hooning, Maartje J.
A1  - Hopper, John L.
A1  - Howell, Tony
A1  - Huo, Dezheng
A1  - Ito, Hidemi
A1  - Iwasaki, Motoki
A1  - Jakubowska, Anna
A1  - Janni, Wolfgang
A1  - John, Esther M.
A1  - Jung, Audrey
A1  - Kaaks, Rudolf
A1  - Kang, Daehee
A1  - Kapoor, Pooja Middha
A1  - Khusnutdinova, Elza
A1  - Kim, Sung-Won
A1  - Kitahara, Cari M.
A1  - Koutros, Stella
A1  - Kraft, Peter
A1  - Kristensen, Vessela N.
A1  - Kwong, Ava
A1  - Lambrechts, Diether
A1  - Le Marchand, Loic
A1  - Li, Jingmei
A1  - Lindström, Sara
A1  - Linet, Martha
A1  - Lo, Wing-Yee
A1  - Long, Jirong
A1  - Lophatananon, Artitaya
A1  - Lubiński, Jan
A1  - Manoochehri, Mehdi
A1  - Manoukian, Siranoush
A1  - Margolin, Sara
A1  - Martinez, Elena
A1  - Matsuo, Keitaro
A1  - Mavroudis, Dimitris
A1  - Meindl, Alfons
A1  - Menon, Usha
A1  - Milne, Roger L.
A1  - Mohd Taib, Nur Aishah
A1  - Muir, Kenneth
A1  - Mulligan, Anna Marie
A1  - Neuhausen, Susan L.
A1  - Nevanlinna, Heli
A1  - Neven, Patrick
A1  - Newman, William G.
A1  - Offit, Kenneth
A1  - Olopade, Olufunmilayo I.
A1  - Olshan, Andrew F.
A1  - Olson, Janet E.
A1  - Olsson, Håkan
A1  - Park, Sue K.
A1  - Park-Simon, Tjoung-Won
A1  - Peto, Julian
A1  - Plaseska-Karanfilska, Dijana
A1  - Pohl-Rescigno, Esther
A1  - Presneau, Nadege
A1  - Rack, Brigitte
A1  - Radice, Paolo
A1  - Rashid, Muhammad U.
A1  - Rennert, Gad
A1  - Rennert, Hedy S.
A1  - Romero, Atocha
A1  - Ruebner, Matthias
A1  - Saloustros, Emmanouil
A1  - Schmidt, Marjanka K.
A1  - Schmutzler, Rita K.
A1  - Schneider, Michael O.
A1  - Schoemaker, Minouk J.
A1  - Scott, Christopher
A1  - Shen, Chen-Yang
A1  - Shu, Xiao-Ou
A1  - Simard, Jaques
A1  - Slager, Susan
A1  - Smichkoska, Snezhana
A1  - Southey, Melissa C.
A1  - Spinelli, John J.
A1  - Stone, Jennifer
A1  - Surowy, Harald
A1  - Swerdlow, Anthony J.
A1  - Tamimi, Rulla M.
A1  - Tapper, William J.
A1  - Teo, Soo H.
A1  - Terry, Mary Beth
A1  - Toland, Amanda E.
A1  - Tollenaar, Rob A. E. M.
A1  - Torres, Diana
A1  - Torres-Mejía, Gabriela
A1  - Troester, Melissa A.
A1  - Truong, Thérèse
A1  - Tsugane, Shoichiro
A1  - Untch, Michael
A1  - Vachon, Celine M.
A1  - van den Ouweland, Ans M. W.
A1  - van Veen, Elke M.
A1  - Vijai, Joseph
A1  - Wendt, Camilla
A1  - Wolk, Alicja
A1  - Yu, Jyh-Cherng
A1  - Zheng, Wei
A1  - Ziogas, Argyrios
A1  - Ziv, Elad
A1  - Dunnig, Alison
A1  - Pharaoh, Paul D. P.
A1  - Schindler, Detlev
A1  - Devilee, Peter
A1  - Easton, Douglas F.
T1  - Two truncating variants in FANCC and breast cancer risk
JF  - Scientific Reports
N2  - Fanconi anemia (FA) is a genetically heterogeneous disorder with 22 disease-causing genes reported to date. In some FA genes, monoallelic mutations have been found to be associated with breast cancer risk, while the risk associations of others remain unknown. The gene for FA type C, FANCC, has been proposed as a breast cancer susceptibility gene based on epidemiological and sequencing studies. We used the Oncoarray project to genotype two truncating FANCC variants (p.R185X and p.R548X) in 64,760 breast cancer cases and 49,793 controls of European descent. FANCC mutations were observed in 25 cases (14 with p.R185X, 11 with p.R548X) and 26 controls (18 with p.R185X, 8 with p.R548X). There was no evidence of an association with the risk of breast cancer, neither overall (odds ratio 0.77, 95%CI 0.44–1.33, p = 0.4) nor by histology, hormone receptor status, age or family history. We conclude that the breast cancer risk association of these two FANCC variants, if any, is much smaller than for BRCA1, BRCA2 or PALB2 mutations. If this applies to all truncating variants in FANCC it would suggest there are differences between FA genes in their roles on breast cancer risk and demonstrates the merit of large consortia for clarifying risk associations of rare variants.
KW  - oncology
KW  - risk factors
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-222838
VL  - 9
ER  - 
TY  - JOUR
A1  - Hargart, F
A1  - Roy-Choudhury, K
A1  - John, T
A1  - Portalupi, S L
A1  - Schneider, C
A1  - Höfling, S
A1  - Kamp, M
A1  - Hughes, S
A1  - Michler, P
T1  - Probing different regimes of strong field light-matter interaction with semiconductor quantum dots and few cavity photons
JF  - New Journal of Physics
N2  - In this work we present an extensive experimental and theoretical investigation of different regimes of strong field light–matter interaction for cavity-driven quantum dot (QD) cavity systems. The electric field enhancement inside a high-Q micropillar cavity facilitates exceptionally strong interaction with few cavity photons, enabling the simultaneous investigation for a wide range of QD-laser detuning. In case of a resonant drive, the formation of dressed states and a Mollow triplet sideband splitting of up to 45 μeV is measured for amean cavity photon number <n\(_c\)>\(\leq\) 1. In the asymptotic limit of the linear ACStark effect we systematically investigate the power and detuning dependence of more than 400 QDs. Some QD-cavity systems exhibit an unexpected anomalous Stark shift, which can be explained by an extended dressed 4-levelQDmodel.Weprovide a detailed analysis of the QD-cavity systems properties enabling this novel effect. The experimental results are successfully reproduced using a polaron master equation approach for the QD-cavity system, which includes the driving laser field, exciton-cavity and exciton-phonon interactions
KW  - light–matter interaction
KW  - quantum dots
KW  - AC Stark effect
KW  - dressed states
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-166278
VL  - 18
ER  -