KCNQ1 and type 2 diabetes mellitus: Two independent GWAS in Japanese individuals have identified a novel type 2 diabetes gene: the potassium channel, voltage-gated, KQT-like subfamily, member 1 (KCNQ1), and for the two studies, the association was replicated in Danish and Singaporean individuals (meta-analysis: rs2237895 OR = 1.23 (1.18–1.29), p<1.0×10−16 and rs2237897 OR = 1.33 (1.24–1.41), p<1.0×10−16) [15], and in Chinese, Korean and Swedish individuals (meta-analysis: rs2237895 OR = 1.31 (1.25–138), p = 6.1×10−26, and rs2237892 OR = 1.40 (1.34–1.47), p<1.7×10−42[16].