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Neuroprotective activity of Stereospermum suaveolens DC against 6-OHDA induced Parkinson's disease model

Objectives: To evaluate the neuroprotective effect of Stereospermum suaveolens DC on 6-hydroxy dopamine induced Parkinson's disease model. Materials and Methods: The study was conducted on Sprague-Dawley rats where parkinson's disease was induced by producing the striatal 6-hydroxy dopamine lesions. The test animals received methanolic extract of Stereospermum suaveolens at dose of 125, 250 and 500 mg/kg for 42 days. Behavioral assessment, spontaneous locomotor activity and muscular coordination were studied. Antioxidant levels, striatal infraction area were assessed and histopathological studies were carried out. Results: The Stereospermum suaveolens DC methanolic extract showed significant dose dependent increase in behavioral activity, improved muscular coordination. Significant reduction of lipid peroxidation (LPO), increased antioxidant enzymes like superoxide dismutase (SOD), catalase (CAT) and non-enzymatic activity of glutathione (GSH) and total thiol levels in extract treated groups was observed in test groups as compared to control group. Striatal infarction area was significantly reduced in extract treated groups as compared to control group. Conclusion: The methanolic extract of Stereospermum suaveolens DC showed neuroprotective activity against 6-hydroxy dopamine induced Parkinson's disease in rats.