Synthesis and Biological Evaluation of Heterocyclic Ring Fused Betulinic Acid Derivatives as Novel Inhibitors of Osteoclast Differentiation and Bone Resorption,徐军,李珍惜,A series of betulinic acid (BA) derivatives were synthesized by introducing various
不同浓度rhBMP-2对人胎盘间充质干细胞增殖及碱性磷酸酶表达的影响,宋扬,李彦,目的:探讨重组人骨形成蛋白2(recombinant human bone morphogenetic protein-2,rhBMP-2)作用于人胎盘间充质干细胞(human placenta-derived mesenchymal stem