rs2066826

This case-control association study identified rs10483032 in the CBR3 gene as associated with type 2 diabetes and insulin resistance in Chinese populations (combined OR = 1.29, 95% CI = 1.14-1.47, P < 0.0001). The association was replicated in multiple Chinese samples and validated in the FUSION GWAS. Functional studies demonstrated CBR3 expression increases during adipocyte differentiation, and CBR3 knockdown enhanced adipogenesis, suggesting the risk variant modulates type 2 diabetes susceptibility through effects on adipogenesis and insulin sensitivity.

This review examines COX-2 (PTGS2) genetic variants and their association with gastric cancer susceptibility. Key variants include rs689466 (OR=1.19, p=0.002), rs20417 (OR=1.26, p<0.001), rs3218625 (OR=1.62, p=0.039), and rs5275 (OR=1.14, p=0.030), which increase gastric cancer risk through enhanced transcriptional activity or mRNA stability. The paper synthesizes data from multiple case-control studies and the authors' own analyses in Chinese populations (296-660 cases each), establishing COX-2 polymorphisms as potential biomarkers for cancer risk stratification.

This association study identified five SNPs in the PTGS2 gene (cyclooxygenase-2) and tested their association with type 2 diabetes mellitus (T2DM) in approximately 1,000 Pima Indians. Two promoter/intronic variants were significantly associated with T2DM: rs20417 (OR=1.6 per C allele copy, P=0.01) and rs2066826 (OR=1.5 per T allele copy, P=0.01), with individuals carrying variant alleles showing 30% higher diabetes prevalence. The rs20417 C allele variant has been shown to reduce PTGS2 promoter activity, suggesting a biological mechanism through altered gene expression affecting insulin secretion.