title: 1,25-Dihydroxycholecalciferol, a biologically active metabolite of vitamin D 3 .
mesh_terms: D000818:Animals; D001692:Biological Transport / Q000187:drug effects; D002118:Calcium / Q000378:metabolism; D002247:Carbon Isotopes; D002645:Chickens; D002762:Cholecalciferol / Q000378:metabolism*; D006887:Hydroxycholecalciferols / Q000494:pharmacology / Q000627:therapeutic use; D007413:Intestinal Mucosa / Q000378:metabolism; D008297:Male; D051381:Rats; D012279:Rickets / Q000188:drug therapy; D013045:Species Specificity; D013268:Stimulation, Chemical; D013329:Structure-Activity Relationship; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D006887:Hydroxycholecalciferols; D014316:Tritium; D002762:Cholecalciferol; D002118:Calcium