Figure 1. Identification of BMSCs. (A) The appearance of BMSCs cultured to the second generation. Scale bar = 100 μm. (B) The osteogenesis differentiation of BMSCs was confirmed by alizarin red staining. Scale bar = 100 μm. (C) The potential of BMSCs to differentiate into adipocytes was verified by oil red staining. Scale bar = 100 μm. (D) The surface markers of BMSCs were identified by flow cytometry.