Fig. 4From: MSC-derived small extracellular vesicles overexpressing miR-20a promoted the osteointegration of porous titanium alloy by enhancing osteogenesis via targeting BAMBIThe OVX model verification of SD rats. a Micro-CT images showed the femur of OVX group had lower bone density compared with the Control group without OVX treatment. b-c Statistical analysis of BMD and BV/TV between OVX and the Control groups. (*p< 0.05)Back to article page