Aging is considered a risk factor in the pathogenesis of atherosclerosis. It is not clear, however, whether the relationship between aging and atherosclerosis is the result of increased susceptibility of the arterial wall related to intrinsic alterations or the expression of exposure to risk factors. In this study, we used aged (median age 46 months) and young (4 months old) New Zealand white rabbits. Nine aged and 11 young rabbits received a hyperlipemic diet enriched with a low dose of cholesterol for 18 months. Eleven aged and 8 young rabbits. fed standard chow for the same period, were used as controls. Using morphologic and morphometric methods, we detected in aged hyperlipemic rabbits (a) a marked prevalence of fibroatheromatous plaques (as opposed to fatty streaks in young hyperlipemic rabbits); (b) aortic lesions more extensive and of greater dimensions than in young hyperlipemic rabbits; (c) fibroatheromatous plaques in carotids and raised fatty streaks in the large subepicardial coronary branches. Our results show an increased susceptibility of the aged arterial wall to hypercholesterolemia.

Spagnoli, L.G., Orlandi, A., Mauriello, A., Santeusanio, G., De Angelis, C., Lucreziotti, R., et al. (1991). Aging and atherosclerosis in the rabbit. 1. Distribution, prevalence and mosphology of atherosclerotic lesions. ATHEROSCLEROSIS, 89(1), 11-24.

Aging and atherosclerosis in the rabbit. 1. Distribution, prevalence and mosphology of atherosclerotic lesions

SPAGNOLI, LUIGI GIUSTO;ORLANDI, AUGUSTO;MAURIELLO, ALESSANDRO;SANTEUSANIO, GIUSEPPE;
1991

Abstract

Aging is considered a risk factor in the pathogenesis of atherosclerosis. It is not clear, however, whether the relationship between aging and atherosclerosis is the result of increased susceptibility of the arterial wall related to intrinsic alterations or the expression of exposure to risk factors. In this study, we used aged (median age 46 months) and young (4 months old) New Zealand white rabbits. Nine aged and 11 young rabbits received a hyperlipemic diet enriched with a low dose of cholesterol for 18 months. Eleven aged and 8 young rabbits. fed standard chow for the same period, were used as controls. Using morphologic and morphometric methods, we detected in aged hyperlipemic rabbits (a) a marked prevalence of fibroatheromatous plaques (as opposed to fatty streaks in young hyperlipemic rabbits); (b) aortic lesions more extensive and of greater dimensions than in young hyperlipemic rabbits; (c) fibroatheromatous plaques in carotids and raised fatty streaks in the large subepicardial coronary branches. Our results show an increased susceptibility of the aged arterial wall to hypercholesterolemia.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore MED/08 - Anatomia Patologica
English
Con Impact Factor ISI
Aging; Atherosclerosis; Hypercholesterolemia; Morphometry; Rabbit
Spagnoli, L.G., Orlandi, A., Mauriello, A., Santeusanio, G., De Angelis, C., Lucreziotti, R., et al. (1991). Aging and atherosclerosis in the rabbit. 1. Distribution, prevalence and mosphology of atherosclerotic lesions. ATHEROSCLEROSIS, 89(1), 11-24.
Spagnoli, Lg; Orlandi, A; Mauriello, A; Santeusanio, G; De Angelis, C; Lucreziotti, R; Ramacci, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/49940
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