Large-scale genome-wide association analysis of bipolar disorder identifies a new susceptibility locus near ODZ4. - Archive ouverte HAL Access content directly
Journal Articles Nature Genetics Year : 2011

Large-scale genome-wide association analysis of bipolar disorder identifies a new susceptibility locus near ODZ4.

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Peng Zhang
Wei Xu
Kari Stefansson
  • Function : Author
Stacy Steinberg
  • Function : Author
Omar Gustafsson
  • Function : Author
Patrick Sullivan
Högni Oskarsson
  • Function : Author
Adam Wright
  • Function : Author
Andreas Reif

Abstract

We conducted a combined genome-wide association study (GWAS) of 7,481 individuals with bipolar disorder (cases) and 9,250 controls as part of the Psychiatric GWAS Consortium. Our replication study tested 34 SNPs in 4,496 independent cases with bipolar disorder and 42,422 independent controls and found that 18 of 34 SNPs had P < 0.05, with 31 of 34 SNPs having signals with the same direction of effect (P = 3.8 × 10(-7)). An analysis of all 11,974 bipolar disorder cases and 51,792 controls confirmed genome-wide significant evidence of association for CACNA1C and identified a new intronic variant in ODZ4. We identified a pathway comprised of subunits of calcium channels enriched in bipolar disorder association intervals. Finally, a combined GWAS analysis of schizophrenia and bipolar disorder yielded strong association evidence for SNPs in CACNA1C and in the region of NEK4-ITIH1-ITIH3-ITIH4. Our replication results imply that increasing sample sizes in bipolar disorder will confirm many additional loci.
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inserm-00634944 , version 1 (17-02-2012)

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Pamela Sklar, Stephan Ripke, Laura J. Scott, Ole A. Andreassen, Sven Cichon, et al.. Large-scale genome-wide association analysis of bipolar disorder identifies a new susceptibility locus near ODZ4.. Nature Genetics, 2011, 43 (10), pp.977-83. ⟨10.1038/ng.943⟩. ⟨inserm-00634944⟩
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