Association between the Interleukin‐6 Gene −572 C/G Polymorphism and the Risk of Type 2 Diabetes Mellitus: A Meta‐Analysis of 11,681 Subjects
The association between the interleukin‐6 (IL‐6) gene −572 C/G (rs1800796) polymorphism and type 2 diabetes mellitus (T2DM) risk remains controversial. Thus, we performed this meta‐analysis by searching PubMed, Embase, Web of Science, CBMdisc and CNKI databases until January 30, 2012. In addition, hand searching of the references of identified articles was performed. A total of 10 case–control studies including 11,681 subjects were selected to evaluate the possible association. Our results showed evidence for significant association between the IL‐6 gene −572 C/G polymorphism and T2DM risk (for G allele vs. C allele: odds ratio [OR] = 1.29, 95% confidence interval [CI] = 1.09–1.52, P = 0.002, P = 0.008 after Bonferroni testing; for G/G vs. C/C: OR = 1.89, 95% CI = 1.51–2.37, P < 0.00001, P < 0.00004 after Bonferroni testing; for GG vs. G/C + C/C: OR = 1.75, 95% CI = 1.20–2.56, P = 0.004, P = 0.016 after Bonferroni testing; for G/G + G/C vs. C/C: OR = 1.32, 95% CI = 1.11–1.57, P = 0.001, P = 0.004 after Bonferroni testing). In addition, similar results were obtained in the subgroup analysis based on ethnicity. In summary, the present meta‐analysis suggests a significant association between the IL‐6 gene −572 G allele and increased risk of T2DM.
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Document Type: Research Article
Publication date: March 1, 2013