Figure 2.

Masson's trichome staining of cavernosum tissue. The smooth muscle/collagen ratio decreased significantly in diabetic group compared with normal control. Resveratrol contributed to the restoration of cavernous structure impairment in diabetes. (a) Normal control group. (b) Diabetic group. (c) Resveratrol-treated group. (d) Statistical chart of smooth muscle/collagen ratio; *P<0.01 vs. normal control group, #P<0.05 vs. diabetic group. N, normal control group; DED, diabetic group; Res, resveratrol-treated group. Scale bars=200 μm.