Objective: To investigate the effects of the serum of rats administered icariin(SI) on the proliferation and osteogenic differentiation of rat bone marrow stromal cells(rBMSCs).Methods: Adult Wistar rats were given icariin intragastrically at 250mg/kg body weight and their serum was obtained after 1 hour.The control serum was obtained by giving equal volume of physiological saline.The serums were supplemented into the culture media of rBMSCs at 2.5%,5% and 10% respectively.MTT method was adopted in prolifer...