Enhanced wound healing and hemostasis with exosome-loaded gelatin sponges from human umbilical cord mesenchymal stem cells

Figure 6 Wound healing effect of gelatin sponge loaded with exosomes. A: Representative images of rat wounds; B: Statistical analysis of the wound area; C: Hematoxylin and eosin-stained wound tissue sections as observed under a light microscope. The orange arrows indicate the stratum corneum, the yellow arrows indicate the granular layer, the green arrows indicate the sebaceous gland, the blue arrows indicate the hair follicle, the black arrows indicate the collagen fibers, the light green arrows indicate the blood vessels, and the purple arrows indicate the subcutaneous fat. Scale bar = 100 μm. ^aP < 0.05. n = 3. Exo: Exosome.