Journal
CANCER EPIDEMIOLOGY BIOMARKERS & PREVENTION
Volume 22, Issue 3, Pages 467-469Publisher
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1055-9965.EPI-12-1365
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Funding
- NIH/National Cancer Institute (NCI) [R01CA124558, R01CA64277, R01CA90899]
- NIH/NICHD [5K12 HD043483-09]
- Vanderbilt Ingram Center [P30CA68485]
- China Scholarship Council (CSC)
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Background: As breast and ovarian cancers may have similar etiologies, this study aimed to evaluate the hypothesis that breast cancer shares common genetic susceptibility variants with ovarian cancer. Methods: Ten genetic variants in nine loci were previously identified to be associated with ovarian cancer risk among Caucasian women; an additional 353 variants in high-linkage disequilibrium (r(2) >= 0.6) among Han Chinese were identified. Data were available from the Affymetrix Genome-Wide Array (6.0) or MACH imputation for 25 and 78 common genetic variants [minor allele frequency (MAF) >= 0.05], respectively. Associations with breast cancer risk were evaluated by additive logistic regression models among 2,918 breast cancer cases and 2,324 controls. Results: No associations with breast cancer risk were evident for 103 ovarian cancer susceptibility variants in five loci. Four loci were not evaluated, as they included only rare variants (MAF < 0.05). Conclusions: Ovarian cancer susceptibility variants identified in Caucasian women were not associated with breast cancer risk among 5,242 Chinese women. Impact: These findings suggest that breast and ovarian cancer may not share common susceptibility variants among Chinese women. Cancer Epidemiol Biomarkers Prev; 22(3); 467-9. (c) 2013 AACR.
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