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    Differential oxidative stress responses to methanol in intraperitoneally exposed rats: Ameliorative effects of Opuntia vulgaris fruit extract

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    Date
    2012-07
    Author
    Saoudi, Mongi
    Hsouna, Anis Ben
    Trigui, Mohamed
    Jamoussi, Kamel
    Jaoua, Samir
    El Feki, Abdelfattah
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    Abstract
    Methanol is primarily metabolized by oxidation to formaldehyde and then to formate. These processes are accompanied by formation of superoxide anion and hydrogen peroxide. This article reports data on the effect of methanol-induced oxidative damage in experimental rats and the role of aqueous extract of Opuntia vulgaris fruit extract (OE) to counteract the toxicity induced by methanol. The animals were exposed to methanol at a dose of 2.37 g/kg body weight intraperitoneally for 30 days. OE was found to contain large amounts of polyphenols and carotenoids and significant antioxidant capacities highlighted by scavenging activities for 2,2-diphenyl-l-picrylhydrazyl. The treatment with methanol exhibited a significant increase in serum hepatic and renal biochemical parameters (alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, lactate dehydrogenase, bilirubin, urea, and creatinine). Methanol intoxication significantly increased hepatic and renal lipid peroxidation evaluated by thiobarbituric acid reactive substances in treated rats as compared to controls. However, hepatic and renal antioxidant enzymes namely superoxide dismutase, catalase, and glutathione peroxidase were significantly decreased in methanol-treated animals as compared to controls. The results concluded that treatment with OE prior to methanol intoxication has significant role in protecting animals from methanol-induced hepatic and renal histopathological and oxidative damage.
    DOI/handle
    http://dx.doi.org/10.1177/0748233711416949
    http://hdl.handle.net/10576/3989
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    • Biological & Environmental Sciences [‎933‎ items ]

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