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  • Title: Relationship between CCR2-V64I polymorphism and cancer risk: a meta-analysis.
    Author: Huang Y, Chen H, Wang J, Bunjhoo H, Xiong W, Xu Y, Zhao J.
    Journal: Gene; 2013 Jul 15; 524(1):54-8. PubMed ID: 23612252.
    Abstract:
    BACKGROUND AND OBJECTIVES: The role of CCR2-V64I polymorphism in various cancers has been reported in many studies. However, results from published studies on the association between CCR2-V64I polymorphism and cancer risk are conflicting. Therefore, we performed a meta-analysis to estimate the overall cancer risk associated with the polymorphism. METHODS: Electronic searches of PubMed and EMBASE were conducted for all publications on the association between this variant and cancer. Odds ratios (OR) with 95% confidence intervals (95% CI) were used to access the strength of this association. RESULTS: Sixteen studies with 2661 cancer patients and 5801 healthy controls were included. Overall, significant association was found between the CCR2-V64I polymorphism and cancer risk (OR=1.84, 95% CI=1.35-2.51, AA vs GA/GG, P=0.37). In the subgroup analysis stratified by cancer types, there was a significant association between this polymorphism and bladder cancer (OR=2.06, 95% CI=1.02-4.15, AA vs GA/GG, P=0.11), cervical cancer (OR=3.34, 95% CI=1.48-7.50, AA vs GG, P=0.56), and oral cancer (OR=2.04, 95% CI=1.46-2.84, GA vs GG, P=0.70). In the subgroup analysis stratified by ethnicities, an increased cancer risk was also found in Europeans (OR=2.31, 95% CI=1.45-3.68, AA vs GA/GG, P=0.16) and Asians (OR=1.88, 95% CI=1.12-3.16, AA vs GA/GG, P=0.92). CONCLUSION: This meta-analysis suggested that CCR2-V64I polymorphism may contribute to an increased risk of cancer.
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