Effects of orchidectomy (Orx), vitamin E and aspirin on number of rats with atherosclerotic plaques (1A), aortic fatty streak area (1B), and progression of atherosclerotic lesions (1C). All these values (Figures A-C) are expressed as a percentage. Bars (1A and 1B) represent the percent means ± SEM from 9–10 rats per treatment group. *Asterisk denotes significant differences in comparison with other groups (P<0.05). Bars (1C) represent the distribution of rats (percentage) in the different degrees of lesion formation, n = 9–10 per group. The degree of lesion formation was classified as normal (without lesion formation), early atheromatous, and atheromatous.