Fig. 3

Effect of captopril on heart changes in DOCA-salt-induced hypertensive rats. A Heart hypertrophy index. B Quantitative level of heart fibrosis. C Quantitative level of aortic elastic bands. D Representative histological images of heart perivascular fibrosis. E Aortic fibrosis. The results were compared by one-way ANOVA and Duncan’s post hoc test; *p < 0.05, **p < 0.01, and ***p < 0.001. ns Not significant; n = 5