Fig. 4
From: Role of PI3K in the bone resorption of apical periodontitis
Osteoblast induction and identification. A a and b, ALP staining of MC3T3-E1 cells after 0 and 7 days of induction, viewed under a light microscope (×40); c and d, Alizarin red staining of MC3T3-E1 cells at 0 and 21 days of induction, viewed under a light microscope (×40); B the ALP mRNA expression results of MC3T3-E1 cells at 0 and 7 days of induction. C Statistical analysis of ALP mRNA expression in osteoblasts. *P = 0.015