@article{HerrmannLotzKaragiannidisetal.2022, author = {Herrmann, Johannes and Lotz, Christopher and Karagiannidis, Christian and Weber-Carstens, Steffen and Kluge, Stefan and Putensen, Christian and Wehrfritz, Andreas and Schmidt, Karsten and Ellerkmann, Richard K. and Oswald, Daniel and Lotz, G{\"o}sta and Zotzmann, Viviane and Moerer, Onnen and K{\"u}hn, Christian and Kochanek, Matthias and Muellenbach, Ralf and Gaertner, Matthias and Fichtner, Falk and Brettner, Florian and Findeisen, Michael and Heim, Markus and Lahmer, Tobias and Rosenow, Felix and Haake, Nils and Lepper, Philipp M. and Rosenberger, Peter and Braune, Stephan and Kohls, Mirjam and Heuschmann, Peter and Meybohm, Patrick}, title = {Key characteristics impacting survival of COVID-19 extracorporeal membrane oxygenation}, series = {Critical Care}, volume = {26}, journal = {Critical Care}, number = {1}, doi = {10.1186/s13054-022-04053-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-299686}, year = {2022}, abstract = {Background Severe COVID-19 induced acute respiratory distress syndrome (ARDS) often requires extracorporeal membrane oxygenation (ECMO). Recent German health insurance data revealed low ICU survival rates. Patient characteristics and experience of the ECMO center may determine intensive care unit (ICU) survival. The current study aimed to identify factors affecting ICU survival of COVID-19 ECMO patients. Methods 673 COVID-19 ARDS ECMO patients treated in 26 centers between January 1st 2020 and March 22nd 2021 were included. Data on clinical characteristics, adjunct therapies, complications, and outcome were documented. Block wise logistic regression analysis was applied to identify variables associated with ICU-survival. Results Most patients were between 50 and 70 years of age. PaO\(_{2}\)/FiO\(_{2}\) ratio prior to ECMO was 72 mmHg (IQR: 58-99). ICU survival was 31.4\%. Survival was significantly lower during the 2nd wave of the COVID-19 pandemic. A subgroup of 284 (42\%) patients fulfilling modified EOLIA criteria had a higher survival (38\%) (p = 0.0014, OR 0.64 (CI 0.41-0.99)). Survival differed between low, intermediate, and high-volume centers with 20\%, 30\%, and 38\%, respectively (p = 0.0024). Treatment in high volume centers resulted in an odds ratio of 0.55 (CI 0.28-1.02) compared to low volume centers. Additional factors associated with survival were younger age, shorter time between intubation and ECMO initiation, BMI > 35 (compared to < 25), absence of renal replacement therapy or major bleeding/thromboembolic events. Conclusions Structural and patient-related factors, including age, comorbidities and ECMO case volume, determined the survival of COVID-19 ECMO. These factors combined with a more liberal ECMO indication during the 2nd wave may explain the reasonably overall low survival rate. Careful selection of patients and treatment in high volume ECMO centers was associated with higher odds of ICU survival.}, language = {en} } @article{SchofferSchueleinArandetal.2016, author = {Schoffer, Olaf and Sch{\"u}lein, Stefanie and Arand, Gerlinde and Arnholdt, Hans and Baaske, Dieter and Bargou, Ralf C. and Becker, Nikolaus and Beckmann, Matthias W. and Bodack, Yves and B{\"o}hme, Beatrix and Bozkurt, Tayfun and Breitsprecher, Regine and Buchali, Andre and Burger, Elke and Burger, Ulrike and Dommisch, Klaus and Elsner, Gudrun and Fernschild, Karin and Flintzer, Ulrike and Funke, Uwe and Gerken, Michael and G{\"o}bel, Hubert and Grobe, Norbert and Gumpp, Vera and Heinzerling, Lucie and Kempfer, Lana Raffaela and Kiani, Alexander and Klinkhammer-Schalke, Monika and Kl{\"o}cking, Sabine and Kreibich, Ute and Knabner, Katrin and Kuhn, Peter and Lutze, Stine and M{\"a}der, Uwe and Maisel, Tanja and Maschke, Jan and Middeke, Martin and Neubauer, Andreas and Niedostatek, Antje and Opazo-Saez, Anabelle and Peters, Christoph and Schell, Beatrice and Schenkirsch, Gerhard and Schmalenberg, Harald and Schmidt, Peter and Schneider, Constanze and Schubotz, Birgit and Seide, Anika and Strecker, Paul and Taubenheim, Sabine and Wackes, Matthias and Weiß, Steffen and Welke, Claudia and Werner, Carmen and Wittekind, Christian and Wulff, J{\"o}rg and Zettl, Heike and Klug, Stefanie J.}, title = {Tumour stage distribution and survival of malignant melanoma in Germany 2002-2011}, series = {BMC Cancer}, volume = {16}, journal = {BMC Cancer}, number = {936}, doi = {10.1186/s12885-016-2963-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-164544}, year = {2016}, abstract = {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. "}, language = {en} } @article{DoerkPeterlongoMannermaaetal.2019, author = {D{\"o}rk, Thilo and Peterlongo, Peter and Mannermaa, Arto and Bolla, Manjeet K. and Wang, Qin and Dennis, Joe and Ahearn, Thomas and Andrulis, Irene L. and Anton-Culver, Hoda and Arndt, Volker and Aronson, Kristan J. and Augustinsson, Annelie and Beane Freeman, Laura E. and Beckmann, Matthias W. and Beeghly-Fadiel, Alicia and Behrens, Sabine and Bermisheva, Marina and Blomqvist, Carl and Bogdanova, Natalia V. and Bojesen, Stig E. and Brauch, Hiltrud and Brenner, Hermann and Burwinkel, Barbara and Canzian, Federico and Chan, Tsun L. and Chang-Claude, Jenny and Chanock, Stephen J. and Choi, Ji-Yeob and Christiansen, Hans and Clarke, Christine L. and Couch, Fergus J. and Czene, Kamila and Daly, Mary B. and dos-Santos-Silva, Isabel and Dwek, Miriam and Eccles, Diana M. and Ekici, Arif B. and Eriksson, Mikael and Evans, D. Gareth and Fasching, Peter A. and Figueroa, Jonine and Flyger, Henrik and Fritschi, Lin and Gabrielson, Marike and Gago-Dominguez, Manuela and Gao, Chi and Gapstur, Susan M. and Garc{\´i}a-Closas, Montserrat and Garc{\´i}a-S{\´a}enz, Jos{\´e} A. and Gaudet, Mia M. and Giles, Graham G. and Goldberg, Mark S. and Goldgar, David E. and Guen{\´e}l, Pascal and Haeberle, Lothar and Haimann, Christopher A. and H{\aa}kansson, Niclas and Hall, Per and Hamann, Ute and Hartman, Mikael and Hauke, Jan and Hein, Alexander and Hillemanns, Peter and Hogervorst, Frans B. L. and Hooning, Maartje J. and Hopper, John L. and Howell, Tony and Huo, Dezheng and Ito, Hidemi and Iwasaki, Motoki and Jakubowska, Anna and Janni, Wolfgang and John, Esther M. and Jung, Audrey and Kaaks, Rudolf and Kang, Daehee and Kapoor, Pooja Middha and Khusnutdinova, Elza and Kim, Sung-Won and Kitahara, Cari M. and Koutros, Stella and Kraft, Peter and Kristensen, Vessela N. and Kwong, Ava and Lambrechts, Diether and Le Marchand, Loic and Li, Jingmei and Lindstr{\"o}m, Sara and Linet, Martha and Lo, Wing-Yee and Long, Jirong and Lophatananon, Artitaya and Lubiński, Jan and Manoochehri, Mehdi and Manoukian, Siranoush and Margolin, Sara and Martinez, Elena and Matsuo, Keitaro and Mavroudis, Dimitris and Meindl, Alfons and Menon, Usha and Milne, Roger L. and Mohd Taib, Nur Aishah and Muir, Kenneth and Mulligan, Anna Marie and Neuhausen, Susan L. and Nevanlinna, Heli and Neven, Patrick and Newman, William G. and Offit, Kenneth and Olopade, Olufunmilayo I. and Olshan, Andrew F. and Olson, Janet E. and Olsson, H{\aa}kan and Park, Sue K. and Park-Simon, Tjoung-Won and Peto, Julian and Plaseska-Karanfilska, Dijana and Pohl-Rescigno, Esther and Presneau, Nadege and Rack, Brigitte and Radice, Paolo and Rashid, Muhammad U. and Rennert, Gad and Rennert, Hedy S. and Romero, Atocha and Ruebner, Matthias and Saloustros, Emmanouil and Schmidt, Marjanka K. and Schmutzler, Rita K. and Schneider, Michael O. and Schoemaker, Minouk J. and Scott, Christopher and Shen, Chen-Yang and Shu, Xiao-Ou and Simard, Jaques and Slager, Susan and Smichkoska, Snezhana and Southey, Melissa C. and Spinelli, John J. and Stone, Jennifer and Surowy, Harald and Swerdlow, Anthony J. and Tamimi, Rulla M. and Tapper, William J. and Teo, Soo H. and Terry, Mary Beth and Toland, Amanda E. and Tollenaar, Rob A. E. M. and Torres, Diana and Torres-Mej{\´i}a, Gabriela and Troester, Melissa A. and Truong, Th{\´e}r{\`e}se and Tsugane, Shoichiro and Untch, Michael and Vachon, Celine M. and van den Ouweland, Ans M. W. and van Veen, Elke M. and Vijai, Joseph and Wendt, Camilla and Wolk, Alicja and Yu, Jyh-Cherng and Zheng, Wei and Ziogas, Argyrios and Ziv, Elad and Dunnig, Alison and Pharaoh, Paul D. P. and Schindler, Detlev and Devilee, Peter and Easton, Douglas F.}, title = {Two truncating variants in FANCC and breast cancer risk}, series = {Scientific Reports}, volume = {9}, journal = {Scientific Reports}, organization = {ABCTB Investigators, NBCS Collaborators}, doi = {10.1038/s41598-019-48804-y}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-222838}, year = {2019}, abstract = {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.}, language = {en} } @article{ZlamyAlmanzarParsonetal.2016, author = {Zlamy, Manuela and Almanzar, Giovanni and Parson, Walther and Schmidt, Christian and Leierer, Johannes and Weinberger, Birgit and Jeller, Verena and Unsinn, Karin and Eyrich, Matthias and W{\"u}rzner, Reinhard and Prelog, Martina}, title = {Efforts of the human immune system to maintain the peripheral CD8+ T cell compartment after childhood thymectomy}, series = {Immunity \& Ageing}, volume = {13}, journal = {Immunity \& Ageing}, number = {3}, doi = {10.1186/s12979-016-0058-z}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-146497}, year = {2016}, abstract = {Background Homeostatic mechanisms to maintain the T cell compartment diversity indicate an ongoing process of thymic activity and peripheral T cell renewal during human life. These processes are expected to be accelerated after childhood thymectomy and by the influence of cytomegalovirus (CMV) inducing a prematurely aged immune system. The study aimed to investigate proportional changes and replicative history of CD8+ T cells, of recent thymic emigrants (RTEs) and CD103+ T cells (mostly gut-experienced) and the role of Interleukin-(IL)-7 and IL-7 receptor (CD127)-expressing T cells in thymectomized patients compared to young and old healthy controls. Results Decreased proportions of naive and CD31 + CD8+ T cells were demonstrated after thymectomy, with higher proliferative activity of CD127-expressing T cells and significantly shorter relative telomere lengths (RTLs) and lower T cell receptor excision circles (TRECs). Increased circulating CD103+ T cells and a skewed T cell receptor (TCR) repertoire were found after thymectomy similar to elderly persons. Naive T cells were influenced by age at thymectomy and further decreased by CMV. Conclusions After childhood thymectomy, the immune system demonstrated constant efforts of the peripheral CD8+ T cell compartment to maintain homeostasis. Supposedly it tries to fill the void of RTEs by peripheral T cell proliferation, by at least partly IL-7-mediated mechanisms and by proportional increase of circulating CD103+ T cells, reminiscent of immune aging in elderly. Although other findings were less significant compared to healthy elderly, early thymectomy demonstrated immunological alterations of CD8+ T cells which mimic features of premature immunosenescence in humans.}, language = {en} } @article{HocheSchulzDietrichetal.2019, author = {Hoche, Joscha and Schulz, Alexander and Dietrich, Lysanne Monika and Humeniuk, Alexander and Stolte, Matthias and Schmidt, David and Brixner, Tobias and W{\"u}rthner, Frank and Mitric, Roland}, title = {The origin of the solvent dependence of fluorescence quantum yields in dipolar merocyanine dyes}, series = {Chemical Science}, volume = {10}, journal = {Chemical Science}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-198707}, pages = {11013}, year = {2019}, abstract = {Fluorophores with high quantum yields are desired for a variety of applications. Optimization of promising chromophores requires an understanding of the non-radiative decay channels that compete with the emission of photons. We synthesized a new derivative of the famous laser dye 4-dicyanomethylen-2-methyl-6-p-dimethylaminostyryl-4H-pyran (DCM),i.e., merocyanine 4-(dicyanomethylene)-2-tert-butyl-6-[3-(3-butyl-benzothiazol-2-ylidene)1-propenyl]-4H-pyran (DCBT). We measured fluorescence lifetimes and quantum yields in a variety of solvents and found a trend opposite to the energy gap law.This motivated a theoretical investigation into the possible non-radiative decay channels. We propose that a barrier to a conical intersection exists that is very sensitive to the solvent polarity. The conical intersection is characterized by a twisted geometry which allows a subsequent photoisomerization. Transient absorption measurements confirmed the formation of a photoisomer in unpolar solvents, while the measurements of fluorescence quantum yields at low temperature demonstrated the existence of an activation energy barrier.}, language = {en} } @article{MarenholzEsparzaGordilloRueschendorfetal.2015, author = {Marenholz, Ingo and Esparza-Gordillo, Jorge and R{\"u}schendorf, Franz and Bauerfeind, Anja and Strachan, David P. and Spycher, Ben D. and Baurecht, Hansj{\"o}rg and Magaritte-Jeannin, Patricia and S{\"a}{\"a}f, Annika and Kerkhof, Marjan and Ege, Markus and Baltic, Svetlana and Matheson, Melanie C. and Li, Jin and Michel, Sven and Ang, Wei Q. and McArdle, Wendy and Arnold, Andreas and Homuth, Georg and Demenais, Florence and Bouzigon, Emmanuelle and S{\"o}derh{\"a}ll, Cilla and Pershagen, G{\"o}ran and de Jongste, Johan C. and Postma, Dirkje S. and Braun-Fahrl{\"a}nder, Charlotte and Horak, Elisabeth and Ogorodova, Ludmila M. and Puzyrev, Valery P. and Bragina, Elena Yu and Hudson, Thomas J. and Morin, Charles and Duffy, David L. and Marks, Guy B. and Robertson, Colin F. and Montgomery, Grant W. and Musk, Bill and Thompson, Philip J. and Martin, Nicholas G. and James, Alan and Sleiman, Patrick and Toskala, Elina and Rodriguez, Elke and F{\"o}lster-Holst, Regina and Franke, Andre and Lieb, Wolfgang and Gieger, Christian and Heinzmann, Andrea and Rietschel, Ernst and Keil, Thomas and Cichon, Sven and N{\"o}then, Markus M. and Pennel, Craig E. and Sly, Peter D. and Schmidt, Carsten O. and Matanovic, Anja and Schneider, Valentin and Heinig, Matthias and H{\"u}bner, Norbert and Holt, Patrick G. and Lau, Susanne and Kabesch, Michael and Weidinger, Stefan and Hakonarson, Hakon and Ferreira, Manuel A. R. and Laprise, Catherine and Freidin, Maxim B. and Genuneit, Jon and Koppelman, Gerard H. and Mel{\´e}n, Erik and Dizier, Marie-H{\´e}l{\`e}ne and Henderson, A. John and Lee, Young Ae}, title = {Meta-analysis identifies seven susceptibility loci involved in the atopic march}, series = {Nature Communications}, volume = {6}, journal = {Nature Communications}, number = {8804}, doi = {10.1038/ncomms9804}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-139835}, year = {2015}, abstract = {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.}, language = {en} } @article{KimpelSchindlerSchmidtPenningtonetal.2023, author = {Kimpel, Otilia and Schindler, Paul and Schmidt-Pennington, Laura and Altieri, Barbara and Megerle, Felix and Haak, Harm and Pittaway, James and Dischinger, Ulrich and Quinkler, Marcus and Mai, Knut and Kroiss, Matthias and Polat, B{\"u}lent and Fassnacht, Martin}, title = {Efficacy and safety of radiation therapy in advanced adrenocortical carcinoma}, series = {British Journal of Cancer}, volume = {128}, journal = {British Journal of Cancer}, number = {4}, doi = {10.1038/s41416-022-02082-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-324411}, pages = {586-593}, year = {2023}, abstract = {Background International guidelines emphasise the role of radiotherapy (RT) for the management of advanced adrenocortical carcinoma (ACC). However, the evidence for this recommendation is very low. Methods We retrospectively analysed all patients who received RT for advanced ACC in five European centres since 2000. Primary endpoint: time to progression of the treated lesion (tTTP). Secondary endpoints: best objective response, progression-free survival (PFS), overall survival (OS), adverse events, and the establishment of predictive factors by Cox analyses. Results In total, 132 tumoural lesions of 80 patients were treated with conventional RT (cRT) of 50-60 Gy (n = 20) or 20-49 Gy (n = 69), stereotactic body RT of 35-50 Gy (SBRT) (n = 36), or brachytherapy of 12-25 Gy (BT) (n = 7). Best objective lesional response was complete (n = 6), partial (n = 52), stable disease (n = 60), progressive disease (n = 14). Median tTTP was 7.6 months (1.0-148.6). In comparison to cRT\(_{20-49Gy}\), tTTP was significantly longer for cRT\(_{50-60Gy}\) (multivariate adjusted HR 0.10; 95\% CI 0.03-0.33; p < 0.001) and SBRT (HR 0.31; 95\% CI 0.12-0.80; p = 0.016), but not for BT (HR 0.66; 95\% CI 0.22-1.99; p = 0.46). Toxicity was generally mild and moderate with three grade 3 events. No convincing predictive factors could be established. Conclusions This largest published study on RT in advanced ACC provides clear evidence that RT is effective in ACC.}, language = {en} } @article{BuhlBeissertGaffaletal.2020, author = {Buhl, Timo and Beissert, Stefan and Gaffal, Evelyn and Goebeler, Matthias and Hertl, Michael and Mauch, Cornelia and Reich, Kristian and Schmidt, Enno and Sch{\"o}n, Michael P. and Sticherling, Michael and Sunderk{\"o}tter, Cord and Traidl-Hoffmann, Claudia and Werfel, Thomas and Wilsman-Theis, Dagmar and Worm, Margitta}, title = {COVID-19 and implications for dermatological and allergological diseases}, series = {JDDG: Journal der Deutschen Dermatologischen Gesellschaft}, volume = {18}, journal = {JDDG: Journal der Deutschen Dermatologischen Gesellschaft}, number = {8}, doi = {10.1111/ddg.14195}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-217860}, pages = {815 -- 824}, year = {2020}, abstract = {COVID-19, caused by the coronavirus SARS-CoV-2, has become pandemic. A further level of complexity opens up as soon as we look at diseases whose pathogenesis and therapy involve different immunological signaling pathways, which are potentially affected by COVID-19. Medical treatments must often be reassessed and questioned in connection with this infection. This article summarizes the current knowledge of COVID-19 in the light of major dermatological and allergological diseases. It identifies medical areas lacking sufficient data and draws conclusions for the management of our patients during the pandemic. We focus on common chronic inflammatory skin diseases with complex immunological pathogenesis: psoriasis, eczema including atopic dermatitis, type I allergies, autoimmune blistering and inflammatory connective tissue diseases, vasculitis, and skin cancers. Since several other inflammatory skin diseases display related or comparable immunological reactions, clustering of the various inflammatory dermatoses into different disease patterns may help with therapeutic decisions. Thus, following these patterns of skin inflammation, our review may supply treatment recommendations and thoughtful considerations for disease management even beyond the most frequent diseases discussed here.}, language = {en} } @article{StolteHechtXieetal.2020, author = {Stolte, Matthias and Hecht, Reinhard and Xie, Zengqi and Liu, Linlin and Kaufmann, Christina and Kudzus, Astrid and Schmidt, David and W{\"u}rthner, Frank}, title = {Crystal Engineering of 1D Exciton Systems Composed of Single- and Double-Stranded Perylene Bisimide J-Aggregates}, series = {Advanced Optical Materials}, volume = {8}, journal = {Advanced Optical Materials}, number = {18}, doi = {10.1002/adom.202000926}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-218221}, year = {2020}, abstract = {Single crystals of three at bay area tetraphenoxy-substituted perylene bisimide dyes are grown by vacuum sublimation. X-ray analysis reveals the self-assembly of these highly twisted perylene bisimides (PBIs) in the solid state via imide-imide hydrogen bonding into hydrogen-bonded PBI chains. The crystallographic insights disclose that the conformation and sterical congestion imparted by the phenoxy substituents can be controlled by ortho-substituents. Accordingly, whilst sterically less demanding methyl and isopropyl substituents afford double-stranded PBI chains of complementary P and M atropo-enantiomers, single hydrogen-bonded chains of homochiral PBIs are observed for the sterically more demanding ortho-phenyl substituents. Investigation of the absorption and fluorescence properties of microcrystals and thin films of these PBIs allow for an unambiguous interpretation of these exciton systems. Thus, the J-aggregates of the double-stranded crystals exhibit a much larger (negative) exciton coupling than the single-stranded one, which in contrast has the higher solid-state fluorescence quantum yield.}, language = {en} } @article{LaquaWoznickiBleyetal.2023, author = {Laqua, Fabian Christopher and Woznicki, Piotr and Bley, Thorsten A. and Sch{\"o}neck, Mirjam and Rinneburger, Miriam and Weisthoff, Mathilda and Schmidt, Matthias and Persigehl, Thorsten and Iuga, Andra-Iza and Baeßler, Bettina}, title = {Transfer-learning deep radiomics and hand-crafted radiomics for classifying lymph nodes from contrast-enhanced computed tomography in lung cancer}, series = {Cancers}, volume = {15}, journal = {Cancers}, number = {10}, issn = {2072-6694}, doi = {10.3390/cancers15102850}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-319231}, year = {2023}, abstract = {Objectives: Positron emission tomography (PET) is currently considered the non-invasive reference standard for lymph node (N-)staging in lung cancer. However, not all patients can undergo this diagnostic procedure due to high costs, limited availability, and additional radiation exposure. The purpose of this study was to predict the PET result from traditional contrast-enhanced computed tomography (CT) and to test different feature extraction strategies. Methods: In this study, 100 lung cancer patients underwent a contrast-enhanced \(^{18}\)F-fluorodeoxyglucose (FDG) PET/CT scan between August 2012 and December 2019. We trained machine learning models to predict FDG uptake in the subsequent PET scan. Model inputs were composed of (i) traditional "hand-crafted" radiomics features from the segmented lymph nodes, (ii) deep features derived from a pretrained EfficientNet-CNN, and (iii) a hybrid approach combining (i) and (ii). Results: In total, 2734 lymph nodes [555 (20.3\%) PET-positive] from 100 patients [49\% female; mean age 65, SD: 14] with lung cancer (60\% adenocarcinoma, 21\% plate epithelial carcinoma, 8\% small-cell lung cancer) were included in this study. The area under the receiver operating characteristic curve (AUC) ranged from 0.79 to 0.87, and the scaled Brier score (SBS) ranged from 16 to 36\%. The random forest model (iii) yielded the best results [AUC 0.871 (0.865-0.878), SBS 35.8 (34.2-37.2)] and had significantly higher model performance than both approaches alone (AUC: p < 0.001, z = 8.8 and z = 22.4; SBS: p < 0.001, z = 11.4 and z = 26.6, against (i) and (ii), respectively). Conclusion: Both traditional radiomics features and transfer-learning deep radiomics features provide relevant and complementary information for non-invasive N-staging in lung cancer.}, language = {en} }