Evaluation of epigallocatechin gallate and epicatechin gallate effects on acrylamide-induced neurotoxicity in rats and cytotoxicity in PC 12 cells
2018
AbstractThe neurotoxicity of acrylamide (ACR) monomer occurs through different mechanisms such as oxidative stress. Epigallocatechin gallate (EGCG) and epicatechin gallate (ECG) are green tea catechins which are known as powerful antioxidants. In this study, we examined the possible protective effects of ECG and EGCG on ACR neurotoxicity in both in-vitro and in-vivo models. PC12 cells were exposed to different concentrations of ECG and EGCG. After 24 and 48 hours, ACR was added to the cells (IC50 = 4.85 mM) and cell viability was measured through MTT assay after 24 hours. Male Wistar rats were pretreated with ECG, EGCG (10, 20 and 40 mg/kg, i.p) and vitamin E (200 IU/kg i.p.) for 3 days. Afterwards they were treated with ACR (50 mg/kg, i.p.) for 11 days. After the treatment period, gait score examination was performed and molondialdehyde (MDA) and reduced glutathione (GSH) were measured in cerebral cortex. ACR reduced the cell viability in a concentration-dependent manner. Both ECG and EGCG (20 μM) showed...
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