Figure 5. Prx II+/+ DMSC-CM and Prx II−/−DMSC-CM promoted skin wound healing. (A) Overall morphological changes observed during wound healing after treatment. (B) Wound-area changes observed during wound healing *p < 0.05, **p < 0.01, when compared with Prx II−/− DMSC-CM. The data shown represent the mean ± SD (n = 6). (C) Histological images (H&E staining) of wounds. Wounds are indicated with dashed lines.