Fig. 4. Evaluation of the expression of osteogenesis-related genes of hADSCs on CMC/nHA/GO substrates. The expression of OSX (a), BSP (b), OPN (c), CON (d) and ALP (e) by qPCR after hADSCs were incubated in PM for 7 d or 14 d; the expression of OSX (f), BSP (g), OPN (h), CON (i) and ALP (j) by qPCR after hADSCs were cultured in DM for 7 d or 14 d (*P < 0.05, **P < 0.01, ***P < 0.001).