Effect of atherosclerosis and the protective effect of the antioxidant vitamin E on the rabbit cerebellum.

Autor:	Elbeltagy MAF; Department of Anatomy, Faculty of Medicine, Menoufia University, Egypt.; Department of Anatomy and Histology, Faculty of Medicine, University of Jordan, Jordan., Elkholy WB; Department of Anatomy, Faculty of Medicine, Menoufia University, Egypt., Salman AS; Department of Anatomy, Faculty of Medicine, Menoufia University, Egypt.; Department of Anatomy and Histology, Faculty of Medicine, University of Jordan, Jordan.
Jazyk:	angličtina
Zdroj:	Microscopy (Oxford, England) [Microscopy (Oxf)] 2019 Oct 09; Vol. 68 (5), pp. 369-378.
DOI:	10.1093/jmicro/dfz023
Abstrakt:	Background: Atherosclerosis is a major cardiovascular disease and one of the commonest causes of mortality in the world. Speech, balance, fine motor control and cognition are affected by atherosclerosis of cerebellar arteries. This study investigated the protective role of vitamin E against induced atherosclerosis in the rabbit cerebellum. Materials and Methods: Forty Rex New Zealand adult male rabbits were randomly divided into four groups (10 rabbits each). Group I was designated as the control and received an ordinary diet. Group II received an ordinary diet, but with vitamin E (12 mg/kg/day) added. Group III were given an ordinary diet along with 1% cholesterol powder for 6 weeks. Finally, group IV received an ordinary diet with both 1% cholesterol powder and vitamin E (12 mg/kg/day). Cerebellum samples were stained with haematoxylin and eosin and examined using light microscopy, along with quantitative immunohistochemical assessments of the expression of caspase-3, glial fibrillary acidic protein (GFAP) and inducible nitric oxide synthase (iNOS). Results: Cerebellum sections from cholesterol-treated rabbits showed ischaemic changes as fibre density decreased, with vacuolation of the molecular layer, and deformed and shrunken Purkinje cells. A significant increase in caspase-3, GFAP and iNOS immunoreactivity was found. However, vitamin E administration reduced these ischaemic manifestations. Conclusions: The results demonstrate the neurological protective role of vitamin E therapy in atherosclerosis. (© The Author(s) 2019. Published by Oxford University Press on behalf of The Japanese Society of Microscopy. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
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