Effect of AVE treatment on right ventricular hypertrophy evaluated by measurement of transverse cardiomyocyte diameter (CTRL group, n = 5; OVA, AVE and OVA + AVE groups, n = 7 each). *P < 0.05, significantly different from CTRL; #P < 0.05, significantly different from OVA group; Kruskal–Wallis test followed by Dunn's test.