In an expanded set of nondiabetic subjects (n = 754), most of the type 2 diabetes-and IGT-associated SNPs were significantly associated with glucose levels during an oral glucose tolerance test, with the same SNP (rs6427340) showing the most significant associations (P = 0.007).
An R1467H in ARHGEF11, and several additional noncoding variants that were in high linkage disequilibrium with this variant, were nominally associated with young-onset type 2 diabetes (P = 0.01; odds ratio 3.39) after adjusting for sex, family membership, and Pima heritage.
Our investigation suggests that the R1467H polymorphism of ARHGEF11 gene may contribute to susceptibility to T2DM and insulin resistance in a Chinese population.
Our study replicated associations of the R1467H with increased risk of T2D or T2D/IGT, thus, implicating a potential role of ARHGEF11 in the aetiology of T2D and IGT.