Common variant at 16p11.2 conferring risk of psychosis

To access publisher's full text version of this article. Please click on the hyperlink in Additional Links field. Epidemiological and genetic data support the notion that schizophrenia and bipolar disorder share genetic risk factors. In our previous genome-wide association study, meta-analysis and follow-up (totaling as many as 18 206 cases and 42 536 controls), we identified four loci showing genome-wide significant association with schizophrenia. Here we consider a mixed schizophrenia and bipolar disorder (psychosis) phenotype (addition of 7469 bipolar disorder cases, 1535 schizophrenia cases, 333 other psychosis cases, 808 unaffected family members and 46 160 controls). Combined analysis reveals a novel variant at 16p11.2 showing genome-wide significant association (rs4583255[T]; odds ratio=1.08; P=6.6 × 10(-11)). The new variant is located within a 593-kb region that substantially increases risk of psychosis when duplicated. In line with the association of the duplication with reduced body mass index (BMI), rs4583255[T] is also associated with lower BMI (P=0.0039 in the public GIANT consortium data set; P=0.00047 in 22 651 additional Icelanders). National Institute of Mental Health N01 MH900001 MH074027 1U24MH081810 R01 MH078075 Eli Lilly and Company Pritzker Neuropsychiatric Disorders Research Fund L.L.C. Massachusetts General Hospital in Boston, MA (NIMH) 2N01MH080001-001 Wellcome Trust 076113 085475 075491/Z/04 085475/B/08/Z 085475/Z/08/Z Medical Research Council G0601030 Anthony P Monaco, PI, University of Oxford National Genome Research Network of the German Federal Ministry of Education and Research (BMBF) 01GS08144 01GS08147 Centre of Excellence for Complex Disease Genetics of the Academy of Finland 213506 129680 Biocentrum Helsinki Foundation Research Program for Molecular Medicine, Faculty of Medicine, University of Helsinki Stanley Medical Research Institute Danish Council for Strategic Research 2101-07-0059 H Lundbeck A/S; the Research Council of Norway 163070/V50 Danish Medical Research Council South-East Norway Health Authority 2004-123 Medical Research Council Ministerio de Sanidad y Consumo, Spain PI081522 Xunta de Galicia 08CSA005208PR Swedish Research Council Wellcome Trust Case Control Consortium 2 Max Planck Society; Saarland University T6 03 10 00-45 Netherlands Foundation for Brain Research (Hersenstichting) 2008(1).34 2006-037761 PIAP-GA-2008-218251 HEALTH-F2-2009-223423 HEALTH-F4-2009-242257 info:eu-repo/grantAgreement/EC/FP7/218251