For example, our previous study confirmed the associations between single nucleotide polymorphisms (SNPs) in or near WFS1, CDKAL1, CDKN2A/2B, CDC123/CAMK1D, HHEX, TCF7L2, KCNQ1, MTNR1B and the risk for T2D in a Chinese Han population as well as the associations between T2D-related SNPs and glycemic traits [12]. This evidence concerns the gene CDKAL1 and type 2 diabetes mellitus.