Figure 4. Effects of SIF on oxidative stress markers. (A) Level of ROS; (B) Level of MDA; (C) Level of GSH; (D) Level of GSH-PX; (E) Level of CAT (F) Level of SOD. The results are shown as the mean±standard deviation (n=5 per group). *p < 0.05 or ##p <0.01vs. the CON group, #p <0.05 or ##p <0.01 vs. the DM group.