Protective Effect of Resveratrol on the Brain in a Rat Model of Epilepsy
Author(s): Zhen Li, Zhuyan You, Min Li, Liang Pang, Juan Cheng, Liecheng Wang, Department of Pharmacology, Anhui Medical University, Department of Physiology, School of Basic Medical Sciences, Anhui Medical University
Pages: 273-280
Year: 2017 Issue: 3
Journal: Neuroscience Bulletin
Keyword: Resveratrol; Epilepsy; Hippocampus; Glutamate; GABA;
Abstract: Accumulating evidence has suggested resveratrol as a promising drug candidate for the treatment of epilepsy. To validate this, we tested the protective effect of resveratrol on a kainic acid(KA)-induced epilepsy model in rats and investigated the underlying mechanism. We found that acute resveratrol application partially inhibited evoked epileptiform discharges in the hippocampal CA1 region. During acute, silent and chronic phases of epilepsy,the expression of hippocampal kainate glutamate receptor(GluK2) and the GABAAreceptor alpha1 subunit(GABAAR-alpha1) was up-regulated and down-regulated,respectively. Resveratrol reversed these effects and induced an antiepileptic effect. Furthermore, in the chronic phase, resveratrol treatment inhibited the KA-induced increased glutamate/GABA ratio in the hippocampus. The antiepileptic effects of resveratrol may be partially attributed to the reduction of glutamate-induced excitotoxicity and the enhancement in GABAergic inhibition.
Pages: 273-280
Year: 2017 Issue: 3
Journal: Neuroscience Bulletin
Keyword: Resveratrol; Epilepsy; Hippocampus; Glutamate; GABA;
Abstract: Accumulating evidence has suggested resveratrol as a promising drug candidate for the treatment of epilepsy. To validate this, we tested the protective effect of resveratrol on a kainic acid(KA)-induced epilepsy model in rats and investigated the underlying mechanism. We found that acute resveratrol application partially inhibited evoked epileptiform discharges in the hippocampal CA1 region. During acute, silent and chronic phases of epilepsy,the expression of hippocampal kainate glutamate receptor(GluK2) and the GABAAreceptor alpha1 subunit(GABAAR-alpha1) was up-regulated and down-regulated,respectively. Resveratrol reversed these effects and induced an antiepileptic effect. Furthermore, in the chronic phase, resveratrol treatment inhibited the KA-induced increased glutamate/GABA ratio in the hippocampus. The antiepileptic effects of resveratrol may be partially attributed to the reduction of glutamate-induced excitotoxicity and the enhancement in GABAergic inhibition.
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