| http://www.w3.org/ns/prov#value | - Many tissues other than the skeletal and intestine express the VDR including cells in the bone marrow, brain, colon, breast, malignant cells, and immune cells suggesting that vitamin D may have functions other than calcium and bone homeostasis.2 Additionally, tissues other than the kidney express 1-??-hydroxylase and are capable of converting 25 D to 1,25 D, in nonrenal compartments.1,3,4 Therefor
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