Fig. 2

Effects of daidzin and daidzein on cell viability and NO release in the RAW264.7 macrophages. A, B The cell viability after treated with different concentrations of daidzin and daidzein for 24 h. C, D NO release in the RAW264.7 macrophages pretreated with daidzin and daidzein for 4 h and co-treated with LPS (1 µM) for another 12 h. Values are the means ± SEM (n = 3); **p < 0.01, ***p < 0.001, daidzin vs. LPS and daidzein vs. LPS; ^###p < 0.001, LPS vs. Control