Figure 5
From: Therapeutic effects of udenafil on pressure-overload cardiac hypertrophy

Histopathological examinations of left ventricles at the 20th week post surgery. (a) Gross examinations, (b) Masson’s trichrome staining showing the extent of fibrosis, (c) immunohistochemistry showing matrix metalloproteinase-9 expression and (d) TUNEL staining showing apoptosis. For TUNEL staining, n=5 in each group. SAC, suprarenal aortic constriction; TUNEL, terminal deoxynuclotidyl transferase-mediated UTP nick-end labeling; UD, udenafil.