title: Stimulation of creatine kinase BB activity by 1 alpha,25-dihydroxycholecalciferol and 24R,25-dihydroxycholecalciferol in rat tissues.
abstract: Vitamin D metabolites stimulate creatine kinase BB activity in organs of vitamin D-deficient rats. In epiphyses of long bones, creatine kinase BB activity increases 2.6-fold 24 h after injection of 24R,25-dihydroxycholecalciferol but not of 1 alpha,25-dihydroxycholecalciferol. Contrariwise, 1 alpha,25-dihydroxycholecalciferol, but not 24R,25-dihydroxycholecalciferol, increases creatine kinase BB activity in diaphyses and in kidney. Neither metabolite affects creatine kinase activity in duodenal mucosa.
mesh_terms: D015650:24,25-Dihydroxyvitamin D 3; D000818:Animals; D001842:Bone and Bones / Q000187:drug effects / Q000201:enzymology; D002117:Calcitriol / Q000494:pharmacology*; D003402:Creatine Kinase / Q000378:metabolism*; D004100:Dihydroxycholecalciferols / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D005260:Female; D007413:Intestinal Mucosa / Q000187:drug effects / Q000201:enzymology; D007527:Isoenzymes; D007668:Kidney / Q000187:drug effects / Q000201:enzymology; D051381:Rats; D011919:Rats, Inbred Strains; D013268:Stimulation, Chemical; D014018:Tissue Distribution
chemical_list: D004100:Dihydroxycholecalciferols; D007527:Isoenzymes; D015650:24,25-Dihydroxyvitamin D 3; D003402:Creatine Kinase; D002117:Calcitriol