title: 24,24-difluoro-1,25-dihydroxyvitamin D3: in vitro production, isolation, and biological activity.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000378:metabolism; D002117:Calcitriol / Q000031:analogs & derivatives*; D002118:Calcium / Q000378:metabolism; D002645:Chickens; D004100:Dihydroxycholecalciferols / Q000096:biosynthesis* / Q000302:isolation & purification / Q000494:pharmacology; D005461:Fluorine; D006887:Hydroxycholecalciferols / Q000096:biosynthesis*; D007413:Intestinal Mucosa / Q000378:metabolism; D007668:Kidney / Q000378:metabolism*; D008297:Male; D051381:Rats; D013329:Structure-Activity Relationship; D014808:Vitamin D Deficiency / Q000378:metabolism*
chemical_list: D004100:Dihydroxycholecalciferols; D006887:Hydroxycholecalciferols; D005461:Fluorine; C023370:24,24-difluoro-1,25-dihydroxyvitamin D3; D002117:Calcitriol; D002118:Calcium