Povidone-iodine (PVI) treatment promoted alpha smooth muscle actin (α-SMA) expression. (A) Representative immunohistochemical α-SMA stained wound sections from a control and PVI treated rat. Scale bar = 50 μm. (B) Semi-quantitative analysis of α-SMA expression. (C) Representative western blotting for α-SMA in wound areas. (D) Semi-quantitative analysis of α-SMA expression, n = 4. *p < 0.05, **p < 0.01 vs control. Data are means ± S.D, n = 24.