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Article type: Research Article
Authors: Alirezaei, M.a; b | Kheradmand, A.c | Heydari, R.d | Tanideh, N.e | Neamati, Sh.b | Rashidipour, M.f
Affiliations: [a] Division of Biochemistry, School of Veterinary Medicine, Lorestan University, P. O. Box 465, Khorram Abad, Iran. e-mail: alirezaei_m54@yahoo.com | [b] Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences, Khorram Abad, Iran | [c] Department of Clinical Sciences, School of Veterinary Medicine, Lorestan University, P. O. Box 465, Khorram Abad, Iran | [d] Department of Chemistry, Faculty of Science, Islamic Azad University, Khorram Abad Branch, Khorram Abad, Iran | [e] Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran | [f] Young Researchers Club, Khorram Abad Branch, Islamic Azad University, Khorram Abad, Iran
Abstract: The aim of the present study was to evaluate the antioxidant properties of oleuropein on ethanol-induced oxidative stress in the rat testis. 32 adult male Sprague–Dawley rats were divided into four equal groups: the first group as a control, the second group of rats were given ethanol (4 g/kg), the third group received oleuropein (15 mg/kg), and the fourth group of rats were supplemented of oleuropein (15 mg/kg) and after 120 min were ingested via ethanol (4 g/kg) orally. Oleuropein could prevent the reduction of motility and plasma membrane integrity of the spermatozoa against ethanol-induced oxidative stress in treated rats (P < 0.05). While, thiobarbituric acid reactive substances (as a lipid peroxidation marker) concentration was decreased significantly in the oleuropein plus ethanol group compared to the ethanol group (P < 0.05). Notably, glutathione peroxidase and superoxide dismutase activity increased significantly in the ethanol-treated animals compared to controls and total glutathione (GSH-content) increased significantly in ethanol-treated rats compared to the oleuropein group. Our findings suggest that oleuropein possesses beneficial antioxidant effects on ethanol-induced sperm toxicity, subsequently enhancing sperm motility and plasma membrane integrity.
Keywords: Oleuropein, Antioxidant enzymes, Ethanol, Rat, Testis
DOI: 10.3233/s12349-011-0079-2
Journal: Mediterranean Journal of Nutrition and Metabolism, vol. 5, no. 3, pp. 205-211, 2012
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