Molecular Biology Reports

, Volume 40, Issue 7, pp 4147–4151 | Cite as

XRCC1 Arg399Gln polymorphism contributes to increased risk of colorectal cancer in Chinese population

  • Zhong Tian
  • Yi-Ling Li
  • Jin-Gang Liu


Previous studies investigating the association between X-ray repair cross-complementation group 1 (XRCC1) Arg399Gln polymorphism and colorectal cancer risk in Chinese provided inconsistent findings. To assess the association in Chinese population, a meta-analysis was performed. Eligible studies were searched in Pubmed, Emabse, and China National Knowledge Infrastructure databases. Odds ratios (OR) with the corresponding 95 % confidence intervals (95 %CI) were pooled to assess the association. Seven case–control studies involving a total of 2136 colorectal cancer cases and 3168 controls were finally included in the meta-analysis. Our analysis suggested that the variant genotypes of XRCC1 Arg399Gln were associated with an increased risk of colorectal cancer in Chinese population (Gln vs. Arg: random effect model OR = 1.24, 95 %CI = 1.01–1.52, P = 0.041; GlnGln vs. ArgArg: random effect model OR = 1.52, 95 %CI = 1.07–2.15, P = 0.019; and Recessive model: fixed effect model OR = 1.37, 95 %CI = 1.12–1.67, P = 0.002). There was low risk of publication bias in present meta-analysis. Our meta-analysis provides an evidence for the association between XRCC1 Arg399Gln polymorphism and colorectal cancer risk in Chinese population, and XRCC1 Arg399Gln variant genotypes contribute to increased risk of colorectal cancer in Chinese.


XRCC1 Colorectal cancer Polymorphism Meta-analysis 


Conflict of interest

The authors declare no conflict of interest.


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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Department of General SurgeryShengjing Hospital of China Medical UniversityShenyangChina
  2. 2.Department of GastroenterologyThe First Affiliated Hospital of China Medical UniversityShenyangChina

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