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  • Title: Meta-analysis of the association between a polymorphism in microRNA-196a2 and susceptibility to colorectal cancer.
    Author: Shi KQ, Lin Z, Li DW, Fang YX, Gao J, Deng ZJ, Chen L, Li GL, Wu JM, Tang KF.
    Journal: Onkologie; 2013; 36(10):560-5. PubMed ID: 24107909.
    Abstract:
    BACKGROUND/AIMS: To accurately evaluate the impact of the C/T polymorphism in microRNA (miRNA)-196a2 on the colorectal cancer (CRC) risk, by meta-analysis. METHODS: An electronic search for articles was conducted in PubMed, EMBASE, ISI Web of Science, and the Cochrane Library. The pooled odds ratio (OR) and its 95% confidence interval (CI) were used to assess the association through meta-analysis. RESULTS: 5 studies were used for analysis. The results showed a significant association between the miRNA-196a2 C/T polymorphism and CRC risk in the genetic models (C vs. T: OR = 1.168, 95% CI = 1.106-1.282, p = 0.001; CC vs. TT: OR = 1.368, 95% CI = 1.132-1.654, p = 0.001; TC/CC vs. TT: OR = 1.206, 95% = CI 1.035-1.405, p = 0.016; CC vs. TC/TT: OR = 1.254, 95% CI = 1.077-1.461, p = 0.004), with the exception of the TC-versus-TT model (TC vs. TT: OR = 1.130, 95% CI = 0.961-1.329, p = 0.138). In a subgroup analysis based on ethnicity, we identified a significant overrepresentation of the polymorphism in individuals of Asian ethnicity. CONCLUSION: This meta-analysis indicates a significant association between the miRNA-196a2 polymorphism and CRC risk.
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