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265 Publications visible to you, out of a total of 265
Nanoparticle uptake by macrophages in vulnerable plaques for atherosclerosis diagnosis.
LIFE Adult

Abstract (Expand)

The composition of atherosclerotic (AS) plaques is crucial concerning rupture, thrombosis and clinical events. Two plaque types are distinguished: stable and vulnerable plaques. Vulnerable plaques are … rich in inflammatory cells, mostly only M1 macrophages, and are highly susceptible to rupture. These plaques represent a high risk particularly with the standard invasive diagnosis by coronary angiography. So far there are no non-invasive low-risk clinical approaches available to detect and distinguish AS plaque types in vivo. The perspective review introduces a whole work-flow for a novel approach for non-invasive detection and classification of AS plaques using the diffusion reflection method with gold nanoparticle loaded macrophages in combination with flow and image cytometric analysis for quality assurance. Classical biophotonic methods for AS diagnosis are summarized. Phenotyping of monocytes and macrophages are discussed for specific subset labelling by nanomaterials, as well as existing studies and first experimental proofs of concept for the novel approach are shown. In vitro and in vivo detection of NP loaded macrophages (MPhi). Different ways of MPhi labelling include (1) in vitro labelling in suspension (whole blood or buffy coat) or (2) labelling of short-term MPhi cultures with re-injection of MPhi-NP into the animal to detect migration of the cells in the plaques and (3) in vivo injection of NP into the organism.

Authors: S. Melzer, R. Ankri, D. Fixler, A. Tarnok

Date Published: 26th Jun 2015

Publication Type: Not specified

Human Diseases: atherosclerosis

Neural processing of negative emotional stimuli and the influence of age, sex and task-related characteristics.
LIFE Adult

Abstract (Expand)

Negative emotional stimuli are particularly salient events that receive privileged access to neurocognitive resources. At the neural level, the processing of negative stimuli relies on a set of sensory, … limbic, and prefrontal areas. However, controversies exist on how demographic and task-related characteristics modulate this brain pattern. Here, we used activation likelihood estimation (ALE) meta-analysis and replicator dynamics to investigate the processing of negative visual stimuli in healthy adults. Our findings endorse the central role of the amygdala. This result might reflect how this structure modulates perceptual and attentional mechanisms in response to emotional stimuli. Additionally, we characterize how the neural processing of negative visual stimuli is influenced by the demographic factors of age and sex as well as by task-related characteristics like stimulus type, emotion category, and task instruction, with the amygdala showing comparable engagement across different sexes, stimulus types, and task instructions. Our findings practically inform experimentation in the affective neurosciences but also suggest brain circuits for neurobiological investigations of affective symptomatology.

Authors: I. Garcia-Garcia, J. Kube, M. Gaebler, A. Horstmann, A. Villringer, J. Neumann

Date Published: 12th May 2016

Publication Type: Not specified

Neural synchrony indexes impaired motor slowing after errors and novelty following white matter damage.
LIFE Adult

Abstract (Expand)

In humans, action errors and perceptual novelty elicit activity in a shared frontostriatal brain network, allowing them to adapt their ongoing behavior to such unexpected action outcomes. Healthy and … pathologic aging reduces the integrity of white matter pathways that connect individual hubs of such networks and can impair the associated cognitive functions. Here, we investigated whether structural disconnection within this network because of small-vessel disease impairs the neural processes that subserve motor slowing after errors and novelty (post-error slowing, PES; post-novel slowing, PNS). Participants with intact frontostriatal circuitry showed increased right-lateralized beta-band (12-24 Hz) synchrony between frontocentral and frontolateral electrode sites in the electroencephalogram after errors and novelty, indexing increased neural communication. Importantly, this synchrony correlated with PES and PNS across participants. Furthermore, such synchrony was reduced in participants with frontostriatal white matter damage, in line with reduced PES and PNS. The results demonstrate that behavioral change after errors and novelty result from coordinated neural activity across a frontostriatal brain network and that such cognitive control is impaired by reduced white matter integrity.

Authors: J. R. Wessel, M. Ullsperger, H. Obrig, A. Villringer, E. Quinque, M. L. Schroeter, K. J. Bretschneider, K. Arelin, E. Roggenhofer, S. Frisch, T. A. Klein

Date Published: 14th Nov 2015

Publication Type: Not specified

Nicotinamide: a vitamin able to shift macrophage differentiation toward macrophages with restricted inflammatory features.
LIFE - Leipzig Research Center for Civilization Diseases

Abstract (Expand)

The differentiation of human monocytes into macrophages is influenced by environmental signals. Here we asked in how far nicotinamide (NAM), a vitamin B3 derivative known to play a major role in … nicotinamide adenine dinucleotide (NAD)-mediated signaling events, is able to modulate monocyte differentiation into macrophages developed in the presence of granulocyte macrophage colony-stimulating factor (GM-MO) or macrophage colony-stimulating factor (M-MO). We found that GM-MO undergo biochemical, morphological and functional modifications in response to NAM, whereas M-MO were hardly affected. GM-MO exposed to NAM acquired an M-MO-like structure while the LPS-induced production of pro-inflammatory cytokines and COX-derived eicosanoids were down-regulated. In contrast, NAM had no effect on the production of IL-10 or the cytochrome P450-derived eicosanoids. Administration of NAM enhanced intracellular NAD concentrations; however, it did not prevent the LPS-mediated drain on NAD pools. In search of intracellular molecular targets of NAM known to be involved in LPS-induced cytokine and eicosanoid synthesis, we found NF-kappaB activity to be diminished. In conclusion, our data show that vitamin B3, when present during the differentiation of monocytes into GM-MO, interferes with biochemical pathways resulting in strongly reduced pro-inflammatory features.

Authors: R. Weiss, E. Schilling, A. Grahnert, V. Kolling, J. Dorow, U. Ceglarek, U. Sack, S. Hauschildt

Date Published: 20th Sep 2015

Publication Type: Not specified

No Association of Coronary Artery Disease with X-Chromosomal Variants in Comprehensive International Meta-Analysis.
Genetical Statistics and Systems Biology, LIFE Heart

Abstract (Expand)

In recent years, genome-wide association studies have identified 58 independent risk loci for coronary artery disease (CAD) on the autosome. However, due to the sex-specific data structure of the X … chromosome, it has been excluded from most of these analyses. While females have 2 copies of chromosome X, males have only one. Also, one of the female X chromosomes may be inactivated. Therefore, special test statistics and quality control procedures are required. Thus, little is known about the role of X-chromosomal variants in CAD. To fill this gap, we conducted a comprehensive X-chromosome-wide meta-analysis including more than 43,000 CAD cases and 58,000 controls from 35 international study cohorts. For quality control, sex-specific filters were used to adequately take the special structure of X-chromosomal data into account. For single study analyses, several logistic regression models were calculated allowing for inactivation of one female X-chromosome, adjusting for sex and investigating interactions between sex and genetic variants. Then, meta-analyses including all 35 studies were conducted using random effects models. None of the investigated models revealed genome-wide significant associations for any variant. Although we analyzed the largest-to-date sample, currently available methods were not able to detect any associations of X-chromosomal variants with CAD.

Authors: C. Loley, M. Alver, T. L. Assimes, A. Bjonnes, A. Goel, S. Gustafsson, J. Hernesniemi, J. C. Hopewell, S. Kanoni, M. E. Kleber, K. W. Lau, Y. Lu, L. P. Lyytikainen, C. P. Nelson, M. Nikpay, L. Qu, E. Salfati, M. Scholz, T. Tukiainen, C. Willenborg, H. H. Won, L. Zeng, W. Zhang, S. S. Anand, F. Beutner, E. P. Bottinger, R. Clarke, G. Dedoussis, R. Do, T. Esko, M. Eskola, M. Farrall, D. Gauguier, V. Giedraitis, C. B. Granger, A. S. Hall, A. Hamsten, S. L. Hazen, J. Huang, M. Kahonen, T. Kyriakou, R. Laaksonen, L. Lind, C. Lindgren, P. K. Magnusson, E. Marouli, E. Mihailov, A. P. Morris, K. Nikus, N. Pedersen, L. Rallidis, V. Salomaa, S. H. Shah, A. F. Stewart, J. R. Thompson, P. A. Zalloua, J. C. Chambers, R. Collins, E. Ingelsson, C. Iribarren, P. J. Karhunen, J. S. Kooner, T. Lehtimaki, R. J. Loos, W. Marz, R. McPherson, A. Metspalu, M. P. Reilly, S. Ripatti, D. K. Sanghera, J. Thiery, H. Watkins, P. Deloukas, S. Kathiresan, N. J. Samani, H. Schunkert, J. Erdmann, I. R. Konig

Date Published: 12th Oct 2016

Publication Type: Journal article

Human Diseases: coronary artery disease

No association of TGFB1 L10P genotypes and breast cancer risk in BRCA1 and BRCA2 mutation carriers: a multi-center cohort study
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

BACKGROUND The transforming growth factor beta-1 gene (TGFB1) is a plausible candidate for breast cancer susceptibility. The L10P variant of TGFB1 is associated with higher circulating levels and …d secretion of TGF-beta, and recent large-scale studies suggest strongly that this variant is associated with breast cancer risk in the general population. METHODS To evaluate whether TGFB1 L10P also modifies the risk of breast cancer in BRCA1 or BRCA2 mutation carriers, we undertook a multi-center study of 3,442 BRCA1 and 2,095 BRCA2 mutation carriers. RESULTS We found no evidence of association between TGFB1 L10P and breast cancer risk in either BRCA1 or BRCA2 mutation carriers. The per-allele HR for the L10P variant was 1.01 (95%CI: 0.92-1.11) in BRCA1 carriers and 0.92 (95%CI: 0.81-1.04) in BRCA2 mutation carriers. CONCLUSIONS These results do not support the hypothesis that TGFB1 L10P genotypes modify the risk of breast cancer in BRCA1 or BRCA2 mutation carriers.

Authors: Timothy R. Rebbeck, Antonis C. Antoniou, Trinidad Caldes Llopis, Heli Nevanlinna, Kristiina Aittomäki, Jacques Simard, Amanda B. Spurdle, Fergus J. Couch, Lutecia H. Mateus Pereira, Mark H. Greene, Irene L. Andrulis, Boris Pasche, Virginia Kaklamani, Ute Hamann, Csilla Szabo, Susan Peock, Margaret Cook, Patricia A. Harrington, Alan Donaldson, Allison M. Male, Carol Anne Gardiner, Helen Gregory, Lucy E. Side, Anne C. Robinson, Louise Emmerson, Ian Ellis, Jean-Philippe Peyrat, Joëlle Fournier, Philippe Vennin, Claude Adenis, Danièle Muller, Jean-Pierre Fricker, Michel Longy, Olga M. Sinilnikova, Dominique Stoppa-Lyonnet, Rita K. Schmutzler, Beatrix Versmold, Christoph Engel, Alfons Meindl, Karin Kast, Dieter Schaefer, Ursula G. Froster, Georgia Chenevix-Trench, Douglas F. Easton

Date Published: 1st May 2009

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

No clinical utility of KRAS variant rs61764370 for ovarian or breast cancer
GC-HBOC - German Consortium for Hereditary Breast and Ovarian Cancer

Abstract (Expand)

OBJECTIVE Clinical genetic testing is commercially available for rs61764370, an inherited variant residing in a KRAS 3’ UTR microRNA binding site, based on suggested associations with increased ovarian …n and breast cancer risk as well as with survival time. However, prior studies, emphasizing particular subgroups, were relatively small. Therefore, we comprehensively evaluated ovarian and breast cancer risks as well as clinical outcome associated with rs61764370. METHODS Centralized genotyping and analysis were performed for 140,012 women enrolled in the Ovarian Cancer Association Consortium (15,357 ovarian cancer patients; 30,816 controls), the Breast Cancer Association Consortium (33,530 breast cancer patients; 37,640 controls), and the Consortium of Modifiers of BRCA1 and BRCA2 (14,765 BRCA1 and 7904 BRCA2 mutation carriers). RESULTS We found no association with risk of ovarian cancer (OR=0.99, 95% CI 0.94-1.04, p=0.74) or breast cancer (OR=0.98, 95% CI 0.94-1.01, p=0.19) and results were consistent among mutation carriers (BRCA1, ovarian cancer HR=1.09, 95% CI 0.97-1.23, p=0.14, breast cancer HR=1.04, 95% CI 0.97-1.12, p=0.27; BRCA2, ovarian cancer HR=0.89, 95% CI 0.71-1.13, p=0.34, breast cancer HR=1.06, 95% CI 0.94-1.19, p=0.35). Null results were also obtained for associations with overall survival following ovarian cancer (HR=0.94, 95% CI 0.83-1.07, p=0.38), breast cancer (HR=0.96, 95% CI 0.87-1.06, p=0.38), and all other previously-reported associations. CONCLUSIONS rs61764370 is not associated with risk of ovarian or breast cancer nor with clinical outcome for patients with these cancers. Therefore, genotyping this variant has no clinical utility related to the prediction or management of these cancers.

Authors: Antoinette Hollestelle, Frederieke H. van der Baan, Andrew Berchuck, Sharon E. Johnatty, Katja K. Aben, Bjarni A. Agnarsson, Kristiina Aittomäki, Elisa Alducci, Irene L. Andrulis, Hoda Anton-Culver, Natalia N. Antonenkova, Antonis C. Antoniou, Carmel Apicella, Volker Arndt, Norbert Arnold, Banu K. Arun, Brita Arver, Alan Ashworth, Laura Baglietto, Rosemary Balleine, Elisa V. Bandera, Daniel Barrowdale, Yukie T. Bean, Lars Beckmann, Matthias W. Beckmann, Javier Benitez, Andreas Berger, Raanan Berger, Benoit Beuselinck, Maria Bisogna, Line Bjorge, Carl Blomqvist, Natalia V. Bogdanova, Anders Bojesen, Stig E. Bojesen, Manjeet K. Bolla, Bernardo Bonanni, Judith S. Brand, Hiltrud Brauch, Hermann Brenner, Louise Brinton, Angela Brooks-Wilson, Fiona Bruinsma, Joan Brunet, Thomas Brüning, Agnieszka Budzilowska, Clareann H. Bunker, Barbara Burwinkel, Ralf Butzow, Saundra S. Buys, Maria A. Caligo, Ian Campbell, Jonathan Carter, Jenny Chang-Claude, Stephen J. Chanock, Kathleen B. M. Claes, J. Margriet Collée, Linda S. Cook, Fergus J. Couch, Angela Cox, Daniel Cramer, Simon S. Cross, Julie M. Cunningham, Cezary Cybulski, Kamila Czene, Francesca Damiola, Agnieszka Dansonka-Mieszkowska, Hatef Darabi, Miguel de La Hoya, Anna deFazio, Joseph Dennis, Peter Devilee, Ed M. Dicks, Orland Diez, Jennifer A. Doherty, Susan M. Domchek, Cecilia M. Dorfling, Thilo Dörk, Isabel Dos Santos Silva, Andreas Du Bois, Martine Dumont, Alison M. Dunning, Mercedes Duran, Douglas F. Easton, Diana Eccles, Robert P. Edwards, Hans Ehrencrona, Bent Ejlertsen, Arif B. Ekici, Steve D. Ellis, Christoph Engel, Mikael Eriksson, Peter A. Fasching, Lidia Feliubadalo, Jonine Figueroa, Dieter Flesch-Janys, Olivia Fletcher, Annette Fontaine, Stefano Fortuzzi, Florentia Fostira, Brooke L. Fridley, Tara Friebel, Eitan Friedman, Grace Friel, Debra Frost, Judy Garber, Montserrat García-Closas, Simon A. Gayther, Aleksandra Gentry-Maharaj, Anne-Marie Gerdes, Graham G. Giles, Rosalind Glasspool, Gord Glendon, Andrew K. Godwin, Marc T. Goodman, Martin Gore, Mark H. Greene, Mervi Grip, Jacek Gronwald, Daphne Gschwantler Kaulich, Pascal Guénel, Starr R. Guzman, Lothar Haeberle, Christopher A. Haiman, Per Hall, Sandra L. Halverson, Ute Hamann, Thomas v. O. Hansen, Philipp Harter, Jaana M. Hartikainen, Sue Healey, Alexander Hein, Florian Heitz, Brian E. Henderson, Josef Herzog, Michelle A. T Hildebrandt, Claus K. Høgdall, Estrid Høgdall, Frans B. L. Hogervorst, John L. Hopper, Keith Humphreys, Tomasz Huzarski, Evgeny N. Imyanitov, Claudine Isaacs, Anna Jakubowska, Ramunas Janavicius, Katarzyna Jaworska, Allan Jensen, Uffe Birk Jensen, Nichola Johnson, Arja Jukkola-Vuorinen, Maria Kabisch, Beth Y. Karlan, Vesa Kataja, Noah Kauff, Linda E. Kelemen, Michael J. Kerin, Lambertus A. Kiemeney, Susanne K. Kjaer, Julia A. Knight, Jacoba P. Knol-Bout, Irene Konstantopoulou, Veli-Matti Kosma, Camilla Krakstad, Vessela Kristensen, Karoline B. Kuchenbaecker, Jolanta Kupryjanczyk, Yael Laitman, Diether Lambrechts, Sandrina Lambrechts, Melissa C. Larson, Adriana Lasa, Pierre Laurent-Puig, Conxi Lazaro, Nhu D. Le, Loic Le Marchand, Arto Leminen, Jenny Lester, Douglas A. Levine, Jingmei Li, Dong Liang, Annika Lindblom, Noralane Lindor, Jolanta Lissowska, Jirong Long, Karen H. Lu, Jan Lubinski, Lene Lundvall, Galina Lurie, Phuong L. Mai, Arto Mannermaa, Sara Margolin, Frederique Mariette, Frederik Marme, John W. M. Martens, Leon F. A. G. Massuger, Christine Maugard, Sylvie Mazoyer, Lesley McGuffog, Valerie McGuire, Catriona McLean, Iain McNeish, Alfons Meindl, Florence Menegaux, Primitiva Menéndez, Janusz Menkiszak, Usha Menon, Arjen R. Mensenkamp, Nicola Miller, Roger L. Milne, Francesmary Modugno, Marco Montagna, Kirsten B. Moysich, Heiko Müller, Anna Marie Mulligan, Taru A. Muranen, Steven A. Narod, Katherine L. Nathanson, Roberta B. Ness, Susan L. Neuhausen, Heli Nevanlinna, Patrick Neven, Finn C. Nielsen, Sune F. Nielsen, Børge G. Nordestgaard, Robert L. Nussbaum, Kunle Odunsi, Kenneth Offit, Edith Olah, Olufunmilayo I. Olopade, Janet E. Olson, Sara H. Olson, Jan C. Oosterwijk, Irene Orlow, Nick Orr, Sandra Orsulic, Ana Osorio, Laura Ottini, James Paul, Celeste L. Pearce, Inge Sokilde Pedersen, Bernard Peissel, Tanja Pejovic, Liisa M. Pelttari, Jo Perkins, Jenny Permuth-Wey, Paolo Peterlongo, Julian Peto, Catherine M. Phelan, Kelly-Anne Phillips, Marion Piedmonte, Malcolm C. Pike, Radka Platte, Joanna Plisiecka-Halasa, Elizabeth M. Poole, Bruce Poppe, Katri Pylkäs, Paolo Radice, Susan J. Ramus, Timothy R. Rebbeck, Malcolm W. R. Reed, Gad Rennert, Harvey A. Risch, Mark Robson, Gustavo C. Rodriguez, Atocha Romero, Mary Anne Rossing, Joseph H. Rothstein, Anja Rudolph, Ingo Runnebaum, Ritu Salani, Helga B. Salvesen, Elinor J. Sawyer, Joellen M. Schildkraut, Marjanka K. Schmidt, Rita K. Schmutzler, Andreas Schneeweiss, Minouk J. Schoemaker, Michael G. Schrauder, Fredrick Schumacher, Ira Schwaab, Giulietta Scuvera, Thomas A. Sellers, Gianluca Severi, Caroline M. Seynaeve, Mitul Shah, Martha Shrubsole, Nadeem Siddiqui, Weiva Sieh, Jacques Simard, Christian F. Singer, Olga M. Sinilnikova, Dominiek Smeets, Christof Sohn, Maria Soller, Honglin Song, Penny Soucy, Melissa C. Southey, Christa Stegmaier, Dominique Stoppa-Lyonnet, Lara Sucheston, Anthony Swerdlow, Ingvild L. Tangen, Muy-Kheng Tea, Manuel R. Teixeira, Kathryn L. Terry, Mary Beth Terry, Mads Thomassen, Pamela J. Thompson, Laima Tihomirova, Marc Tischkowitz, Amanda Ewart Toland, Rob A. E. M. Tollenaar, Ian Tomlinson, Diana Torres, Thérèse Truong, Helen Tsimiklis, Nadine Tung, Shelley S. Tworoger, Jonathan P. Tyrer, Celine M. Vachon, Laura J. van ’t Veer, Anne M. van Altena, C. J. van Asperen, David van den Berg, Ans M. W. van den Ouweland, Helena C. van Doorn, Els van Nieuwenhuysen, Elizabeth J. van Rensburg, Ignace Vergote, Senno Verhoef, Robert A. Vierkant, Joseph Vijai, Allison F. Vitonis, Anna von Wachenfeldt, Christine Walsh, Qin Wang, Shan Wang-Gohrke, Barbara Wappenschmidt, Maren Weischer, Jeffrey N. Weitzel, Caroline Weltens, Nicolas Wentzensen, Alice S. Whittemore, Lynne R. Wilkens, Robert Winqvist, Anna H. Wu, Xifeng Wu, Hannah P. Yang, Daniela Zaffaroni, M. Pilar Zamora, Wei Zheng, Argyrios Ziogas, Georgia Chenevix-Trench, Paul D. P. Pharoah, Matti A. Rookus, Maartje J. Hooning, Ellen L. Goode

Date Published: 1st May 2016

Publication Type: Journal article

Human Diseases: hereditary breast ovarian cancer syndrome

Normative values of the Epworth Sleepiness Scale (ESS), derived from a large German sample.
LIFE Adult

Abstract (Expand)

PURPOSE: Daytime sleepiness is associated with several medical problems. The aim of this paper is to provide normative values for one of the most often used questionnaires measuring daytime sleepiness, … the Epworth Sleepiness Scale (ESS). METHODS: A large sample of 9711 people from the German general population took part in this study. In addition to the ESS, several other questionnaires were used, and sociodemographic and behavioral factors were recorded. RESULTS: Normative values for the ESS are given. According to the generally accepted criterion ESS > 10, 23 % of the sample showed excessive daytime sleepiness. Males reported significantly more daytime sleepiness than females (effect size d = 0.19). In the age range of 40-80 years, a continuous decline of daytime sleepiness was observed. Psychometric properties of the ESS were good. Alcohol intake and nicotine consumption were marginally associated with daytime sleepiness, and obese people reported significantly more sleepiness than people of normal weight (OR = 1.39). CONCLUSIONS: The normative tables allow clinicians and researchers to assess the degree of their patients' daytime sleepiness, especially in the upper range of scores.

Authors: C. Sander, U. Hegerl, K. Wirkner, N. Walter, R. D. Kocalevent, K. Petrowski, H. Glaesmer, A. Hinz

Date Published: 29th May 2016

Publication Type: Journal article

Norms of Interocular Circumpapillary Retinal Nerve Fiber Layer Thickness Differences at 768 Retinal Locations
LIFE Adult

Abstract (Expand)

Purpose: The onset and progression of optic neuropathies like glaucoma often occurs asymmetrically between the two eyes of a patient. Interocular circumpapillary retinal nerve fiber layer thickness … (cpRNFLT) differences could detect disease earlier. To apply such differences diagnostically, detailed location specific norms are necessary. Methods: Spectral-domain optical coherence tomography cpRNFLT circle scans from the population-based Leipzig Research Centre for Civilization Diseases–Adult study were selected. At each of the 768 radial scanning locations, normative interocular cpRNFLT difference distributions were calculated based on age and interocular radius difference. Results: A total of 8966 cpRNFLT scans of healthy eyes (4483 patients; 55% female; age range, 20–79 years) were selected. Global cpRNFLT average was 1.53 µm thicker in right eyes (P < 2.2 × 10–16). On 96% of the 768 locations, left minus right eye differences were significant (P < 0.05), varying between +11.6 µm (superonasal location) and −11.8 µm (nasal location). Increased age and difference in interocular scanning radii were associated with an increased mean and variance of interocular cpRNFLT difference at most retinal locations, apart from the area temporal to the inferior RNF bundle where cpRNFLT becomes more similar between eyes with age. Conclusions: We provide pointwise normative distributions of interocular cpRNFLT differences at an unprecedentedly high spatial resolution of 768 A-scans and reveal considerable location specific asymmetries as well as their associations with age and scanning radius differences between eyes. Translational Relevance: To facilitate clinical application, we implement these age- and radius-specific norms across all 768 locations in an open-source software to generate patient-specific normative color plots.

Authors: Neda Baniasadi, Franziska G. Rauscher, Dian Li, Mengyu Wang, Eun Young Choi, Hui Wang, Thomas Peschel, Kerstin Wirkner, Toralf Kirsten, Joachim Thiery, Christoph Engel, Markus Loeffler, Tobias Elze

Date Published: 3rd Aug 2020

Publication Type: Journal article

Novel Anthropometry Based on 3D-Bodyscans Applied to a Large Population Based Cohort.
LIFE Adult, Genetical Statistics and Systems Biology

Abstract (Expand)

Three-dimensional (3D) whole body scanners are increasingly used as precise measuring tools for the rapid quantification of anthropometric measures in epidemiological studies. We analyzed 3D whole body … scanning data of nearly 10,000 participants of a cohort collected from the adult population of Leipzig, one of the largest cities in Eastern Germany. We present a novel approach for the systematic analysis of this data which aims at identifying distinguishable clusters of body shapes called body types. In the first step, our method aggregates body measures provided by the scanner into meta-measures, each representing one relevant dimension of the body shape. In a next step, we stratified the cohort into body types and assessed their stability and dependence on the size of the underlying cohort. Using self-organizing maps (SOM) we identified thirteen robust meta-measures and fifteen body types comprising between 1 and 18 percent of the total cohort size. Thirteen of them are virtually gender specific (six for women and seven for men) and thus reflect most abundant body shapes of women and men. Two body types include both women and men, and describe androgynous body shapes that lack typical gender specific features. The body types disentangle a large variability of body shapes enabling distinctions which go beyond the traditional indices such as body mass index, the waist-to-height ratio, the waist-to-hip ratio and the mortality-hazard ABSI-index. In a next step, we will link the identified body types with disease predispositions to study how size and shape of the human body impact health and disease.

Authors: H. Loffler-Wirth, E. Willscher, P. Ahnert, K. Wirkner, C. Engel, M. Loeffler, H. Binder

Date Published: 29th Jul 2016

Publication Type: Not specified

Human Diseases: obesity

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