Fig. 5

Effects of stem cell transplantation system on the healing of back ulcers in diabetic foot model mice. A The levels of intracellular oxygen content in different groups of CDCs within three weeks after transplantation. B The healing of the skin of the back ulcers of the diabetic foot model mice in different groups within two weeks. C The healing rate of ulcer wounds of mice in different groups within two weeks. *P < 0.05, **P < 0.01 and ***P < 0.001. D Three weeks after intramuscular injection of different systems into mouse back skin wounds, full-thickness skin samples were taken for HE staining and CD34 and α-SMA immunohistochemical staining