Association analyses based on false discovery rate implicate new loci for coronary artery disease.

Nat Genet 2017 Sep 17;49(9):1385-1391. Epub 2017 Jul 17.

William Harvey Research Institute, Barts &the London Medical School, Queen Mary University of London, London, UK.

Genome-wide association studies (GWAS) in coronary artery disease (CAD) had identified 66 loci at 'genome-wide significance' (P < 5 × 10) at the time of this analysis, but a much larger number of putative loci at a false discovery rate (FDR) of 5% (refs. 1,2,3,4). Here we leverage an interim release of UK Biobank (UKBB) data to evaluate the validity of the FDR approach. We tested a CAD phenotype inclusive of angina (SOFT; n = 10,801) as well as a stricter definition without angina (HARD; n = 6,482) and selected cases with the former phenotype to conduct a meta-analysis using the two most recent CAD GWAS. This approach identified 13 new loci at genome-wide significance, 12 of which were on our previous list of loci meeting the 5% FDR threshold, thus providing strong support that the remaining loci identified by FDR represent genuine signals. The 304 independent variants associated at 5% FDR in this study explain 21.2% of CAD heritability and identify 243 loci that implicate pathways in blood vessel morphogenesis as well as lipid metabolism, nitric oxide signaling and inflammation.

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http://dx.doi.org/10.1038/ng.3913DOI Listing
September 2017
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34 Citations
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