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Figure 5: Effects of ICI182780 on BMP2, Smad1, p-Smad1, Smad4, RUNX2, OSX, and OPN expression in quercetin-treated BMSCs. The cells were cotreated with quercetin and 1 μM ICI 182780 for 7 days, after which the expression levels of the above proteins were analyzed by western blotting. The data are presented as the ratio of protein expression in the treated group to protein expression in the control group. Each value represents the mean ± SD from triplicate experiments. differences between the values at .