Fig. 4
From: A novel animal model of osteonecrosis of the femoral head based on 3D printing technology
ALP staining status after 7Â days of osteogenic induction and the safranin-O staining status after 14Â days of osteogenic induction. A Untreated BMSCs exhibited lower alkaline phosphatase activity as demonstrated by ALP staining. B) BMSCs subjected to osteogenic induction displayed higher alkaline phosphatase activity, as indicated by ALP staining. C Safranin-O staining of untreated BMSCs revealed less calcium deposition. D osteogenically induced BMSCs displayed substantial calcium deposition