Fig. 4: Correlation of the expression of proinflammatory and fibrogenic factors in the penile corpus cavernosum.

A Immunohistochemical staining in each group for IL-6 and TNF-α. B, C IL-6- and TNF-α-positive expression area ratio (n = 3). D Western blot analysis of collagen I and TGF-β1 expression in the rat corpus cavernosum. E, F Analysis of the relative intensity of collagen I and TGF-β1 expression (n = 3). *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001 compared with the Sham group. # p < 0.05, ## p < 0.01, ### p < 0.001, #### p < 0.0001 compared with the CUFF + HFD group.