Abstract Title:

Protective effect of sesamol against 3-nitropropionic acid-induced cognitive dysfunction and altered glutathione redox balance in rats.

Abstract Source:

Basic Clin Pharmacol Toxicol. 2010 Jul ;107(1):577-82. Epub 2010 Jan 25. PMID: 20102363

Abstract Author(s):

Puneet Kumar, Harikesh Kalonia, Anil Kumar

Article Affiliation:

Pharmacology Division, University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Study, Panjab University, Chandigarh, India.

Abstract:

Sesamol (SML) (Sesamum indicum, Linn, Pedaliaceae) has been used traditionally as a health supplement in India and other countries for a long time. It is a well-known antioxidant, currently being tried against several neurological disorders. The present study was designed to evaluate the potential of sesamol treatment against 3-nitropropionic acid (3-NP)-induced cognitive impairment and oxidative damage in striatal, cortex and hippocampal regions of the rat. The memory performance was assessed by Morris water maze and elevated plus maze paradigms. The oxidative damage was assessed by estimating the total glutathione, reduced glutathione, oxidized glutathione levels and glutathione redox ratio. Glutathione-S-transferase and lactate dehydrogenase enzymes were also measured in different brain areas. 3-NP significantly impaired memory performance as assessed in Morris water maze and elevated plus maze, which was significantly attenuated by sesamol (5, 10 and 20 mg/kg) pre-treatment. On the other hand, 3-NP significantly induced oxidative stress and depleted total glutathione, reduced glutathione, glutathione-S-transferase, lactate dehydrogenase enzyme levels and redox ratio in the striatum, cortex and hippocampal regions as compared to the vehicle-treated group. Sesamol pre-treatment restored oxidative defence possibly by its free radical scavenging activity as compared to the 3NP-treated group. The present study suggests that sesamol could be used as an effective agent in the management of Huntington's disease.

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