Hence, in the present study we prioritized to evaluate previously identified common genetic variants in KCNJ11 (rs5219), TCF7L2 (rs7903146), SLC30A8 (rs13266634), IGF2BP2 (rs4402960), HHEX (rs1111875), CDKN2A (rs10811661), KCNQ1 (rs2237892), CDKAL1 (rs7754840) and FTO (rs8050136) for their association with T2D susceptibility. This evidence concerns the gene KCNJ11 and type 2 diabetes mellitus.