title: Intestinal calcium transport: stimulation by low phosphorus diets.
abstract: Rats maintained on a low phosphorus diet supplemented with 25-hydroxyvitamin D(3) show high intestinal calcium transport activity as compared to rats similarly treated but fed a diet containing adequate phosphorus. This increased transport activity is correlated with an increased biosynthesis of 1,25-dihydroxyvitamin D(3), the probable metabolically active form of the vitamin in the intestine.
mesh_terms: D000818:Animals; D001692:Biological Transport; D002118:Calcium / Q000097:blood / Q000378:metabolism*; D004032:Diet; D006887:Hydroxycholecalciferols / Q000008:administration & dosage / Q000097:blood / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism*; D007668:Kidney / Q000378:metabolism; D008297:Male; D010758:Phosphorus / Q000097:blood; D051381:Rats; D014316:Tritium
chemical_list: D006887:Hydroxycholecalciferols; D014316:Tritium; D010758:Phosphorus; D002118:Calcium