ABSTRACT. We conducted a case-control study to investigate the role of three common polymorphisms (rs10754558, rs7512998, and rs12137901) of the gene NLR family, pyrin domain containing 3 (NLRP3) in the development of type 2 diabetes mellitus (T2DM). Between May 2013 and May 2014, 385 patients with T2DM and 401 control subjects were enrolled in our study. Genotyping of the three NLRP3 polymorphisms of interest was performed by polymerase chain reaction-restriction fragment length polymorphism. Unconditional logistic regression analyses showed that individuals carrying GG and GC+GG rs10754558 genotypes were at significantly increased risk of T2DM, with adjusted odds ratios (and 95% confidence intervals) of 1.81 (1.16-2.83) and 1.40 (1.04-1.88), respectively. In conclusion, we propose that the NLRP3 rs10754558 polymorphism contributes to the development of T2DM, but that rs7512998 and rs12137901 variants are not associated with susceptibility to this disease.
Type 2 diabetes (T2D) has become a major health problem throughout the world and the epidemic is particularly severe in Asian countries. Compared with European populations, Asians tend to develop diabetes at a younger age and at much higher incidence rates given the same amount of weight gain. Genome-wide association studies (GWAS) have identified over 70 loci associated with T2D. Although the majority of GWAS results were conducted in populations of European ancestry, recent GWAS in Asians have made important contributions to the identification of T2D susceptibility loci. These studies not only confirmed T2D susceptibility loci initially identified in European populations, but also identified novel susceptibility loci that provide new insights into the pathophysiology of diseases. In this article, we review GWAS results of T2D conducted in East and South Asians and compare them to those of European populations. Currently identified T2D genetic variants do not appear to explain the phenomenon that Asians are more susceptible to T2D than European populations, suggesting further studies in Asian populations are needed.
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