Endocrine Abstracts

We have previously demonstrated that rat bone cells in vivo and in vitro, responded sex-specifically to gonadal steroids in stimulation of the specific activity of creatine kinase (CK). Pretreatment with vitamin D analogs upregulated the sex-specific responsiveness and sensitivity to gonadal steroids. We also found that mice cultured femoral bone marrow (BM) in the presence of dexamethasone (DEX), 1.25(OH)2D3 (1.25D) or both, differentiated into osteoblast-like c...