Fig. 4

Effect of GSL on senescence and ROS of MSCs. A. SA-β-GAL staining to detect senescent BMSCs. Senescent cells are blue-green stained. The original magnification was 200×. B. Positive ratio of SA-β-GAL staining. C. The level of ROS measured by DCF. Data are presented as mean ± SEM. *p < 0.05, **p < 0.01 versus DMSO; #p < 0.05, ##p < 0.01, Co-treated and Pre-treated versus TPF.