Background: Vitamin D is a steroid hormone that is thought to play a role in the etiology and progression of prostate cancer. Hormone activity requires binding to the vitamin D receptor (VDR), which contains several genetic polymorphisms that have been associated with risk of prostate cancer. To further evaluate this relationship, we conducted a population-based case-control study of the VDR BsmI, FokI, and Poly-A polymorphisms, and prostate cancer.
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