title: The management of hypoparathyroidism with 1alpha-hydroxyvitamin D3.
abstract: A retrospective study of the comparative effects of vitamin D, dihydrotachysterol and 1alpha-hydroxyvitamin D3 was undertaken in twenty-eight patients with hypoparathyroidism. The vitamin D compounds restored plasma calcium to the normal range in most patients with comparable actions on the gut, bone and kidney. Although the vitamin D compounds had a direct action on kidney and bone in the absence of PTH, the major action in maintaining plasma calcium was on the gut. Plasma phosphate fell due to a reduction in renal tubular reabsorption. Dihydrotachysterol and 1alpha-hydroxyvitamin D3 had significant practical advantages over vitamin D in their rapid onset of action and their relatively short biological half-life.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002118:Calcium / Q000378:metabolism; D004097:Dihydrotachysterol / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D006887:Hydroxycholecalciferols / Q000627:therapeutic use*; D007011:Hypoparathyroidism / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014807:Vitamin D / Q000627:therapeutic use*
chemical_list: D006887:Hydroxycholecalciferols; D014807:Vitamin D; D004097:Dihydrotachysterol; D002118:Calcium