Objective:To observe The regulatory role of the velvet antler polypeptides(VAP) on chondrocytes proliferation and apoptosis.Method:we established Animal Model of chondrocyte and Isolation,culture articular cartilage cell in Vitro.We compared with the normal control group cells,model cells for osteoarthritis cartilage,VAPS 6.25ug/mL group,VAPS 12.5ug/mL group,VAPS 25ug/mL group and detected apoptosis and proliferation of every group by flow cytometry.Result :the cells of model group in G2/M and S phase signi...