XRCC1 Arg194Trp and Arg280His Polymorphisms Increase Bladder Cancer Risk in Asian Population: Evidence from a Meta-Analysis

Zhenqiang Fang, Fanglin Chen, Xiangwei Wang, Shanhong Yi, Wei Chen and Gang Ye

PLOS ONE, 2013, vol. 8, issue 5, 1-7

Abstract: Background: A lot of studies have investigated the correlation between x-ray cross complementing group 1 (XRCC1) polymorphisms and bladder cancer risk, but the results in Asian population were still inconclusive. We conducted a meta-analysis to ascertain the association of XRCC1 Arg194Trp, Arg280His and Arg399Gln polymorphisms with bladder cancer risk in Asian population. Methodology/Principal findings: The association strength was measured with odds ratios (ORs) and 95% confidence intervals (95% CIs). A total of 9 eligible studies, conducted in China, India and Japan, were identified. We observed a significant increased risk of bladder cancer in dominant model (OR = 1.199, 95% CI: 1.021,1.408, Pheterogeneity = 0.372), allele comparison (OR = 1.200, 95% CI: 1.057,1.362, Pheterogeneity = 0.107) of Arg194Trp, heterozygote comparison (OR = 1.869, 95% CI: 1.205,2.898, Pheterogeneity = 0.011) and dominant model (OR = 1.748, 95% CI: 1.054,2.900, Pheterogeneity = 0.01) of Arg280His. Pooled results estimated from adjusted ORs further validated these findings. No publication bias was detected. Subgroup analyses found that significant increased risk was only found among community-based studies not hospital-based studies. There was no evidence of publication bias. Conclusion: This is the first meta-analysis conducted in Asian investigating the correlation between XRCC1 polymorphisms and susceptibility to bladder cancer. Our meta-analysis shows that XRCC1 Arg194Trp and Arg280His polymorphisms are associated with a significantly increased risk of bladder cancer in Asian population.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0064001

DOI: 10.1371/journal.pone.0064001

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