EVALUATION OF ANXIOLYTIC POTENTIAL OF ETHANOLIC EXTRACT HYPERICUM HOOKERIANUM IN STRESS INDUCED SWISS ALBINO MICE
Journal Title: International Research Journal of Pharmacy (IRJP) - Year 2012, Vol 3, Issue 4
Abstract
The aim of the present work is evaluate to Anxiolytic profile of Hypericum hookerianum in stress induced Swiss albino mice. The study was carried out using Swiss albino mice (25- 30 g). The Anxiolytic effect of aerial parts of ethanolic extract of Hypericum hookerianum was evaluated by using behavioral analysis like Elevated plus maze (EPM) test, Open Field Test (OFT), Hole Board Test (HBT), Light dark exploration Test (LDE) in restraint stress induced animals. Behavioral test parameters for anxiety were assessed followed by biochemical parameters (lipid per oxidation, super oxide dismutase, catalase, glutathione per oxidase, reduced glutathione, etc.) and Diazepam 1 mg/kg served as a standard Anxiolytic drug, administered intraperitonealy. The results were shown that, ethanolic extract of H.hookerianum (Hh 100mg/kg and Hh 200 mg/kg, p.o.) significantly increased the percentage of time spent and number of entries in open arm in EPM. In LDE, the extract produced significant increase in time spent, number of crossing and decrease in the duration of immobility in light box. In OFT, the extract showed significant increase in number of rearings, assisted rearings and number of square crossed, all of which are demonstrations of exploratory behavior. Biochemical analyses revealed an increase in lipid per oxidation, depletion of super oxide dismutase, reduced glutathione, catalase activity and glutathione per oxidase in stress induced animals as compared to unstressed animal. Six days treatment of Hh (100 mg/kg, 200 mg/kg) comparable with Diazepam, significantly attenuated restraint stress-induced behavioral and oxidative damage. The results of the present study suggest that an ethanolic extract of H.hookerianum may possess Anxiolytic activity in stressed animals and provide a scientific evidence for its traditional claim.
Authors and Affiliations
S. Subakanmani , P. Umadevi
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