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  • Title: TNF-α-308G/A polymorphism contributes to obstructive sleep apnea syndrome risk: evidence based on 10 case-control studies.
    Author: Wu Y, Cao C, Wu Y, Zhang C, Zhu C, Ying S, Chen Z, Shen H, Li W.
    Journal: PLoS One; 2014; 9(9):e106183. PubMed ID: 25192323.
    Abstract:
    OBJECTIVE: The aim of our study was to investigate the association between the TNF-α-308G/A polymorphism and obstructive sleep apnea syndrome (OSAS). METHOD: The Medline, Web of Science, EMBASE, Chinese National Knowledge Infrastructure (CNKI), and Cochrane Central Register of Controlled Trials were searched. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to study TNF-α-308G/A polymorphism and risk of OSAS. RESULT: 10 case-control studies were included in our meta-analysis. The results from our study showed that the TNF-α-308G/A polymorphism was significantly associated with risk of OSAS (A vs. G: OR = 1.67, 95% CI = 1.43-1.95). In the subgroup analysis by ethnicity, the statistical similar results were observed both in European (A vs. G: OR = 1.68, 95% CI = 1.35-2.08) and Asian population (A vs. G: OR = 2.02, 95% CI = 1.50-2.71). When stratified by age, a significantly increased risk was observed in adult carries A allele compared with G allele (OR = 1.79, 95% CI = 1.50-2.13), whereas no association was found in children (OR = 1.09, 95% CI = 0.70-1.69). CONCLUSION: Our study suggested that the TNF-α- 308G/A polymorphism contributed to the susceptibility to the risk of OSAS. Additional well-designed large studies are needed to validate our findings.
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