Fig. 3

Drug screening tests of fisetin, silybin and icariside II. a–c Fluorescence diagram of cell activities after treatment with different concentrations of fisetin, silybin and icariside II. d–f Cell viability analysis in fisetin (d), silybin (e) and icariside II (f) groups. The data are expressed as the mean ± SD. ***p < 0.001, **p < 0.01, *p < 0.05