rs11602954

A genome-wide association study (GWAS) of platelet count (PLT) and mean platelet volume (MPV) in 13,582 and 6,291 participants respectively from the eMERGE network identified 5 chromosomal regions associated with PLT and 8 with MPV at genome-wide significance (P<5E-8). Key findings include variants in ARHGEF3 (rs1354034, P=6E-24 for PLT; P=9E-34 for MPV), SH2B3 (rs3184504, P=5E-12), and multiple other loci. The study replicated 20 SNPs for PLT and 22 for MPV from prior meta-analyses and demonstrated pleiotropic effects with myocardial infarction, autoimmune, and hematologic disorders through phenome-wide association study (PheWAS).

This association study tested SNPs from a prior Japanese GWAS for association with uterine fibroids in 1,086 European American cases and 1,549 controls from two U.S. cohorts (RFTS and BioVU). Two SNP associations replicated: BET1L rs2280543 (meta-OR=0.67, 95% CI 0.38-0.96, p=6.9×10⁻³) and TNRC6B rs12484776 (meta-OR=1.21, 95% CI 1.07-1.35, p=8.7×10⁻³). When combined with the prior Japanese GWAS, BET1L rs2280543 showed genome-wide significance (meta-OR=0.66, p=3.89×10⁻⁹), suggesting common variants increase uterine fibroid risk in both European American and Japanese populations.