Fig. 5From: The BMP signaling pathway enhances the osteoblastic differentiation of bone marrow mesenchymal stem cells in rats with osteoporosisAlizarin red staining and ALP staining in each group (× 200) Note: a, alizarin red staining in each group; b, ALP staining of each group; *Compared with the blank group, P < 0.05Back to article page