(a)
(b)
Figure 4: (a) Therapeutic effect of MC fruit extract on transverse section of left ventricular myocardial tissues of experimental rats examined by immunohistochemical staining for type III collagen expression (×400). Expression (stained light brown, ). (b) Therapeutic effect of MC fruit extract on transverse section of left ventricular myocardial tissues of experimental rats examined by immunohistochemical staining for type IV collagen expression (×400). Expression (stained purple blue). Note: in DM-Ctrl group, the outline of cardiomyocytes is distinct from the rest of the groups.