Antioxidant Activity of Grapevine Leaf Extracts against Oxidative Stress Induced by Carbon Tetrachloride in Cerebral Cortex, Hippocampus and Cerebellum of Rats

Antioxidants
Mariane WohlenbergC Dani

Abstract

In recent years, it has become increasingly important to study the beneficial properties of derivatives of grapes and grapevine. The objective of this study was to determine the antioxidant activity of Vitis labrusca leaf extracts, comparing conventional and organic grapevines, in different brain areas of rats. We used male Wistar rats treated with grapevine leaf extracts for a period of 14 days, and on the 15th day, we administered in half of the rats, mineral oil and the other half, carbon tetrachloride (CCl₄). The animals were euthanized by decapitation and the cerebral cortex, hippocampus and cerebellum were removed to assess oxidative stress parameters and the activity of antioxidant enzymes. Lipid peroxidation levels (TBARS) were unchanged. However, CCl₄ induced oxidative damage to proteins in all tissues studied, and this injury was prevented by both extracts. Superoxide dismutase (SOD) activity was increased by CCl₄ in the cerebral cortex and decreased in other tissues. However, CCl₄ increased catalase (CAT) activity in the cerebellum and decreased it in the cerebral cortex. The SOD/CAT ratio was restored in the cerebellum by both extracts and only in the cerebral cortex by the organic extract.

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Citations

May 28, 2016·Journal of Photochemistry and Photobiology. B, Biology·Amel F M IsmailMamdouh M T Eassawy
Aug 19, 2018·Molecular and Cellular Biochemistry·Natasa MijailovicGvozden Rosic
Jun 17, 2019·Environmental Science and Pollution Research International·Katiuska MarinsLeila Zanatta
Jul 16, 2016·Metabolic Brain Disease·Fernanda de Souza MachadoClaudia Funchal

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Methods Mentioned

BETA
protein

Software Mentioned

Statistical Package for the Social Sciences ( SPSS )

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