Abstract
To evaluate the potential association between breast cancer risk and Ser 326 Cys polymorphism of hOGG1 gene, encoding for an enzyme involved in the base excision repair of 8-hydroxyguanine, hospital based case-control studies were conducted in two Asian populations consisting of 475 breast cancer cases (271 Korean and 204 Japanese) and 500 controls (314 Korean and 186 Japanese). PCR-based methods were employed for the genotyping analyses and the statistical evaluations were performed by unconditional logistic regression model. The frequency of hOGG1 Ser/Ser, Ser/Cys, and Cys/Cys genotypes were 22.5, 48.7, and 28.8% in all cases, and 23.7, 52.1, and 24.1% in the controls. No statistically significant associations between the genotypes and breast cancer risk were observed, neither when the ethnic groups were examined separately nor when the total study population was included. Neither did stratification by menopausal status reveal any association between hOGG1 genotypes and breast cancer. Our novel findings therefore suggest that hOGG1 Ser 326 Cys polymorphism is unlikely to play a modifying role in individual susceptibility to breast cancer among Asian women.
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Choi, JY., Hamajima, N., Tajima, K. et al. hOGG1 Ser 326 Cys Polymorphism and Breast Cancer Risk among Asian Women. Breast Cancer Res Treat 79, 59–62 (2003). https://doi.org/10.1023/A:1023305826726
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DOI: https://doi.org/10.1023/A:1023305826726