title: Metabolism and mechanism of action of vitamin D.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000378:metabolism; D002118:Calcium / Q000378:metabolism / Q000494:pharmacology; D002645:Chickens; D002762:Cholecalciferol / Q000378:metabolism; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism; D004100:Dihydroxycholecalciferols / Q000378:metabolism / Q000494:pharmacology; D007408:Intestinal Absorption / Q000187:drug effects; D007421:Intestine, Small / Q000378:metabolism; D007668:Kidney / Q000187:drug effects / Q000201:enzymology; D051381:Rats; D013045:Species Specificity; D013250:Steroid Hydroxylases / Q000378:metabolism; D013329:Structure-Activity Relationship; D014807:Vitamin D / Q000031:analogs & derivatives / Q000378:metabolism* / Q000494:pharmacology
chemical_list: D004100:Dihydroxycholecalciferols; D014807:Vitamin D; D002762:Cholecalciferol; D003577:Cytochrome P-450 Enzyme System; D013250:Steroid Hydroxylases; D002118:Calcium