Figure 1From: Vitamin D and the mammary gland: a review on its role in normal development and breast cancerRepresentation of the differences in the expression of the vitamin D receptor, CYP27B1 and CYP24A1 during breast carcinogenesis. Vitamin D receptor (VDR) and CYP27B1 expression decreases with breast carcinogenesis, while CYP24A1 expression is augmented (brown represents positive staining). (Adapted from [26].)Back to article page