Journal
CANCER EPIDEMIOLOGY BIOMARKERS & PREVENTION
Volume 18, Issue 4, Pages 1321-1323Publisher
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1055-9965.EPI-08-0853
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Funding
- NCI NIH HHS [R01 CA105197-01A1, R01 CA105197] Funding Source: Medline
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CYP1B1 is a key enzyme involved in estrogen metabolism and may Play an important role in the development and progression of breast cancer. In a population-based case-control study, we examined eight CYP1B1 haplotype-tagging single nucleotide polymorphisms in relation to invasive breast cancer risk. Analyses were based on 1,655 cases and 1,470 controls; all women were Caucasian. Among the individual single nucleotide polymorphisms, one (rs9341266) was associated with increased risk of breast cancer P-trend = 0.021), although the association was no longer significant after adjusting for multiple tests. A marginally significant haplotype effect was identified (P-global = 0.015), with significant associations identified for 2 uncommon haplotypes comprising 4% of the controls. Results suggest that genetic variation in CYP1B1 has at most a minor influence on breast cancer susceptibility among Caucasian women. (Cancer Epidemiol Biomarkers Prev 2009;18(4):1321-3)
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