Fig. 7

Histological analysis of wound healing. H&E, Masson’s trichrome, and immunohistochemical staining of CD34 and VEGF in the wound area (A; Scale bar in H&E is 1000 μm, Scale bar in masson, CD34 and VEGF staining is 200 μm). Semi-quantitative analysis of re-epithelization (B), collagen deposition (C), and the expression of CD34 (D) and VEGF protein (E) in the wound sections of control and hydrogel-treated rats at 15 days after surgery. ^*P < 0.05, ^**P < 0.01, and ^***P < 0.001 when compared with the control group