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  • Title: Linalool as a neuroprotective agent against acrylamide-induced neurotoxicity in Wistar rats.
    Author: Mehri S, Meshki MA, Hosseinzadeh H.
    Journal: Drug Chem Toxicol; 2015 Apr; 38(2):162-6. PubMed ID: 24844946.
    Abstract:
    Acrylamide (ACR) is a water-soluble monomer which has broad application in different industries and also can form in food during heating process. This monomer is a potent neurotoxic and damages the central and the peripheral nervous system in human and animals. Oxidative stress has been mentioned as an important pathway in ACR neurotoxicity, therefore the purpose of the current study was evaluation of possible effects of linalool which is a naturally enantiomer monoterpene compound. Linalool has shown antioxidant properties in several studies. Male Wistar rats were treated with ACR (50 mg/kg ip) alone or with linalool (12.5, 25, 50 and 100 mg/kg ip) for 11 days. In another 2 groups rats were treated with linalool (12.5 mg/kg ip) 3 days after and before ACR administration. Then behavior index (gait score) was examined for rats. After that, rats were sacrified and molondialdehyde (MDA) as a marker of lipid peroxidation and glutathione (GSH) content were determined in brain tissue. Exposure to ACR led to severe gait abnormalities and treatment with linalool significantly reduced abnormalities. ACR reduced GSH content and increased level of MDA in cerebral cortex. Linalool increased GSH content while decreased ACR-induced lipid peroxidation in rat brain tissue and the best protocols were initiation of supplementation before or simultaneous with ACR administration.
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