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Vitamin D-Associated Genetic Variation and Risk of Breast Cancer in the Breast and Prostate Cancer Cohort Consortium (BPC3)
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2015 (English)In: Cancer Epidemiology, Biomarkers and Prevention, ISSN 1055-9965, E-ISSN 1538-7755, Vol. 24, no 3, 627-630 p.Article in journal (Refereed) Published
Abstract [en]

Background: Two recent genome-wide association studies (GWAS) identified SNPs in or near four genes related to circulating 25-hydroxyvitamin D [25(OH) D] concentration. To examine the hypothesized inverse relationship between vitamin D status and breast cancer, we studied the associations between SNPs in these genes and breast cancer risk in a large pooled study of 9,456 cases and 10,816 controls from six cohorts. Methods: SNP markers localized to each of four genes (GC, CYP24A1, CYP2R1, and DHCR7) previously associated with 25 (OH) D were genotyped and examined both individually and as a 4-SNP polygenic score. Logistic regression was used to estimate the associations between the genetic variants and risk of breast cancer. Results: We found no association between any of the four SNPs or their polygenic score and breast cancer risk. Conclusions: Our findings do not support an association between vitamin D status, as reflected by 25(OH) D-related genotypes, and breast cancer risk. Impact: These findings may contribute to future meta-analyses and scientific review articles, and provide new data about the association between vitamin D-related genes and breast cancer.

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2015. Vol. 24, no 3, 627-630 p.
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Cancer and Oncology Public Health, Global Health, Social Medicine and Epidemiology
URN: urn:nbn:se:umu:diva-102376DOI: 10.1158/1055-9965.EPI-14-1127ISI: 000351953100020PubMedID: 25542828OAI: diva2:814850
Available from: 2015-05-28 Created: 2015-04-23 Last updated: 2015-05-28Bibliographically approved

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Sund, Malin
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Department of Surgical and Perioperative Sciences
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