RT Journal Article SR Electronic T1 The genetic architecture of osteoarthritis: insights from UK Biobank JF bioRxiv FD Cold Spring Harbor Laboratory SP 174755 DO 10.1101/174755 A1 Eleni Zengini A1 Konstantinos Hatzikotoulas A1 Ioanna Tachmazidou A1 Julia Steinberg A1 Fernando P. Hartwig A1 Lorraine Southam A1 Sophie Hackinger A1 Cindy G. Boer A1 Unnur Styrkarsdottir A1 Daniel Suveges A1 Britt Killian A1 Arthur Gilly A1 Thorvaldur Ingvarsson A1 Helgi Jonsson A1 George C. Babis A1 Andrew McCaskie A1 Andre G. Uitterlinden A1 Joyce B. J. van Meurs A1 Unnur Thorsteinsdottir A1 Kari Stefansson A1 George Davey Smith A1 Mark J. Wilkinson A1 Eleftheria Zeggini YR 2017 UL http://biorxiv.org/content/early/2017/08/11/174755.abstract AB Osteoarthritis is a common complex disease with huge public health burden. Here we perform a genome-wide association study for osteoarthritis using data across 16.5 million variants from the UK Biobank resource. Following replication and meta-analysis in up to 30,727 cases and 297,191 controls, we report 9 new osteoarthritis loci, in all of which the most likely causal variant is non-coding. For three loci, we detect association with biologically-relevant radiographic endophenotypes, and in five signals we identify genes that are differentially expressed in degraded compared to intact articular cartilage from osteoarthritis patients. We establish causal effects for higher body mass index, but not for triglyceride levels or type 2 diabetes liability, on osteoarthritis.