The calcium deposition analysis.

<p>(A-B) ARS staining of rBMSCs cultured in DMEM medium (A) and osteogenic medium (B) with quercetin at different concentrations (0, 1, 2, 5 and 10 μM) for 28 days; (C-D) Calcium concentration analysis of rBMSCs cultured in DMEM medium (C) and osteogenic medium (D) with quercetin at different concentrations (0, 1, 2, 5 and 10 μM) for 21 and 28 days. *p < 0.05 indicates the quercetin-treated groups vs the control group; ▲p < 0.05 indicates the 2 μM group vs the other quercetin groups.