Fig. 5From: Promotion effect of apical tooth germ cell-conditioned medium on osteoblastic differentiation of periodontal ligament stem cells through regulating miR-146a-5pALP activity of APTG-CM-induced and non-induced PDLSCs. ALP activities of PDLSCs increased gradually during 4–16 day period and were significantly different between induced PDLSCs and non-induced PDLSCs. Data were as mean ± S.D. (n = 3). **P < 0.01; ***P < 0.001Back to article page