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Abstract

Volume 9, Issue 3 (May 2007) 9, 331–338; 10.1111/j.1745-7262.2007.00263.x

Relationship between XRCC1 polymorphisms and susceptibility to prostate cancer in men from Han, Southern China

Zheng Xu, Li-Xin Hua, Li-Xin Qian, Jie Yang, Xin-Ru Wang, Wei Zhang and Hong-Fei Wu

1.Department of Urology, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
2.School of Public Health, Nanjing Medical University, Nanjing 210029, China

Correspondence: Dr Hong-Fei Wu, Department of Urology, First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Rd., Nanjing 210029, China. Fax: +86-25-8378-0079. E-mail: wu-hongfei@hotmail.com

Received 29 August 2006; Accepted 8 November 2006.

Abstract

Aim: To investigate the association among XRCC1 polymorphisms, smoking, drinking and the risk of prostate cancer (PCa) in men from Han, Southern China.

Methods: In a case-control study of 207 patients with PCa and 235 cancer-free controls, frequency-matched by age, we genotyped three XRCC1 polymorphisms (codons 194, 280 and 399) using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RELP) method.

Results: Among the three polymorphisms, we found that the XRCC1 Arg399Gln variant allele was associated with increased PCa risk (adjusted odd ratio [OR]: 1.67, 95% confident interval [CI]: 1.11-2.51), but the XRCC1 Arg194Trp variant allele had a 38% reduction in risk of PCa (adjusted OR: 0.62, 95% CI: 0.41-0.93). However, there was no significant risk of PCa associated with Arg280His polymorphism. When we evaluated the three polymorphisms together, we found that the individuals with 194Arg/Arg wild-type genotype, Arg280His and Arg399Gln variant genotypes had a significantly higher risk of PCa (adjusted OR: 4.31; 95% CI: 1.24-14.99) than those with three wild-type genotypes. In addition, we found that Arg399Gln variant genotypes had a significant risk of PCa among heavy smokers (adjusted OR: 2.04; 95% CI: 1.03-4.05).

Conclusion: These results suggest that polymorphisms of XRCC1 appear to influence the risk of PCa and may modify risks attributable to environmental exposure.

Keywords: XRCC1, polymorphism, prostate cancer, genetic susceptibility, molecular epidemiology

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Asian Journal of Andrology CN 31-1795/R ISSN 1008-682X  Copyright © 2023  Shanghai Materia Medica, Chinese Academy of Sciences.  All rights reserved.