The Roles of IL-10 Gene Polymorphisms in Diabetes Mellitus and Their Associated Complications: A Meta-Analysis

Horm Metab Res
DOI: 10.1055/a-0651-5051

The roles of interleukin-10 (IL-10) gene polymorphisms in diabetes mellitus (DM) have been intensively analyzed earlier, but the results of these studies were conflicting. Hence, we performed this study to better assess the relationship between IL-10 genetic variations and DM. Eligible studies were searched in PubMed, Medline, Embase, and Web of Science. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess correlations between IL-10 polymorphisms and DM. A total of 32 studies were finally included in our analyses. Significant associations with the risk of DM were detected for the rs1800871, rs1800872, and rs1800896 polymorphisms. As for complications in DM, significant association with the risk of diabetic nephropathy (DN) was detected for the rs1800871 polymorphism. In addition, we also found that the rs1800896 polymorphism was significantly associated with the risk of diabetic retinopathy (DR). Further stratified analyses on the basis of type of disease demonstrated that the positive results were predominantly driven by the T2DM subgroup. When we stratified data based on ethnicity of participants, we found that the rs1800871 polymorphism was significantly correlated with DM in Caucasians, the rs1800872 polymorphism was significantly correlated with DM in Asians, and the rs1800896 polymorphism was significantly correlated with DM in both Caucasians and Asians. Our findings indicate that rs1800871, rs1800872, and rs1800896 polymorphisms may serve as genetic biomarkers of DM. Moreover, the rs1800871 and rs1800896 polymorphisms may also contribute to the development of complications in DM.
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