Fig. 1

Effect of ovariectomy and angiotensin II (AII)-induced hypertension on histological cardiomyocyte cross-sectional area (CSA). a Histological images of representative left ventricular muscle section from sham control (SHAM) and ovariectomized (OVX) rats, with/without AII infusion, stained with hematoxylin and eosin. b Comparison of the CSA among the four experimental groups. Data are mean ± SE from 5 to 6 hearts of each group (average of 100 myocytes per heart). *Significantly different (P < 0.05) from SHAM using Student–Newman–Keuls test after ANOVA