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Title: Polymorphisms of XRCC1 and ADPRT genes and risk of noncardia gastric cancer in a Chinese population: A casecontrol study
Authors: Pan, X.-F.
Xie, Y.
Loh, M.
Yang, S.-J.
Wen, Y.-Y.
Tian, Z.
Huang, H.
Lan, H.
Chen, F.
Soong, R. 
Yang, C.-X.
Keywords: ADPRT Val762Ala
Noncardia gastric cancer
XRCC1 Arg194Trp
Issue Date: 2012
Source: Pan, X.-F., Xie, Y., Loh, M., Yang, S.-J., Wen, Y.-Y., Tian, Z., Huang, H., Lan, H., Chen, F., Soong, R., Yang, C.-X. (2012). Polymorphisms of XRCC1 and ADPRT genes and risk of noncardia gastric cancer in a Chinese population: A casecontrol study. Asian Pacific Journal of Cancer Prevention 13 (11) : 5637-5642. ScholarBank@NUS Repository.
Abstract: Objective: Gastric cancer (GC) is one of the most common malignancies and its mortality ranks third among all cancers in China. We previously noted that XRCC1 Arg194Trp was associated with GC risk in Western China in a study on XRCC1 Arg194Trp and ADPRT Val762Ala. We aimed to further explore the association of these polymorphisms with risk of the noncardia subtype. Methods: We enrolled 176 noncardia GC patients and 308 controls from four hospitals and a community betweenOctober 2010 and August 2011. Genotyping was performed in a 384-well plate format on the Sequenom MassARRAY platform. A self-designed questionnaire was utilized to collect epidemiological data from the subjects regarding demographic factorsand potential risk factors. Results: Subjects were aged 56.8±11.8 (mean ± standard deviation) and 57.6±11.1 years in thecase and control groups, respectively. Individuals carrying the XRCC1 Trp/Trp or Arg/Trp variant genotype were at significantly increased risk of noncardia GC (adjusted OR, 1.48; 95% CI, 1.00-2.17), after adjustment for family history of cancer, drinking, and smoking. The increased risk of XRCC1 Arg194Trp variant genotype was more pronounced among subjects below 60 years old (adjusted OR, 1.78; 95% CI, 1.07-2.96), compared to older individuals. ADPRT Val762Ala variants (Ala/Ala or Val/Ala) were not associated with noncardia GC (adjusted OR, 1.03; 95% CI, 0.69-1.54). Conclusions: Our study suggests that XRCC1 Arg194Trp is a genetic susceptibility factor for developing noncardia GC in Han Chinese in Western China. In particular, individuals with the XRCC1 Arg194Trp variant genotype are at increased risk for GC below 60 years old.
Source Title: Asian Pacific Journal of Cancer Prevention
ISSN: 15137368
DOI: 10.7314/APJCP.2012.13.11.5637
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