Figure 7From: Salvianolic acid B promotes bone formation by increasing activity of alkaline phosphatase in a rat tibia fracture model: a pilot study ALP activity coloration of the callus in the saline-treated (a) and Sal B-treated (b) groups at week 3 post-fracture (×100). ALP activity coloration was more obvious in the experimental group. Black precipitate was especially prominent around the cartilage cells (arrow).Back to article page