Fig. 7

The cell viability of HDF cells treated with various concentrations of rutoside (50 µg/mL) for 4 h, and then MB treatment for 1 h and kept in dark (a), red irradiation (660 nm) for 90 s (PDT) (b). Data are representative of three independent experiments and are expressed as mean ± SD (n = 3). *P < 0.05 (compared with control (untreated) group. R rutoside