Effects of sika pilose antler type I collagen on osteoclast and its molecular mechanism Research on effect of Sargentodoxae caulis on activity of osteoclasts and proliferation differentiation of osteoblasts Experimental study of the effects of puerarin on biological characters of osteoblasts in vitro Comparative study on effect of icariin and genistein on proliferation and mineralization of osteoblasts in vitro Effects of epimedium pubescens icariine on proliferation and differentiation of human osteoblasts