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  • Title: Lack of association between the hOGG1 Ser326Cys polymorphism and breast cancer risk: evidence from 11 case-control studies.
    Author: Gu D, Wang M, Zhang Z, Chen J.
    Journal: Breast Cancer Res Treat; 2010 Jul; 122(2):527-31. PubMed ID: 20054639.
    Abstract:
    The functional Ser326Cys polymorphism in the human 8-oxogunaine DNA glycosylase (hOGG1) gene has been implicated in breast cancer risk. However, the published findings are inconsistent. We therefore performed a meta-analysis to investigate this relationship. Eleven published case-control studies, including 6,804 breast cancer cases and 6,725 controls were identified. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of the association. Overall, no significant associations between the hOGG1 Ser326Cys polymorphism and breast cancer risk were found for Cys/Cys versus Ser/Ser (OR = 1.07, 95% CI: 0.94-1.20), Ser/Cys versus Ser/Ser (OR = 0.99, 95% CI: 0.91-1.07), Cys/Cys + Ser/Cys versus Ser/Ser (OR = 1.00, 95% CI = 0.93-1.08), and Cys/Cys versus Ser/Cys + Ser/Ser (OR = 1.07, 95% CI: 0.97-1.18). In the stratified analysis by ethnicity, source of controls, and menopausal status, significant associations were still not observed in all genetic models. Taken together, the results suggest that the hOGG1 Ser326Cys polymorphism is not associated with breast cancer risk.
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