Fig. 2

Masson’s trichrome staining of corpora tissue. a, b, c Masson’s trichrome staining of corpora tissue: smooth muscle is shown in red (white arrow) and collagen is shown in green (Magnification: x200). d Ratio of smooth muscle and collagen fibres in corpora tissue. Data are expressed as mean ± standard deviation (SD). * = Significant difference between the control and high fat and cholesterol diet (HFC) groups. ** = Significant difference between the HFC and HFC + KH groups