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To evaluate the antioxidant and Acetyl cholinesterase activity of Methanol extract of Peltophorum pterocarpum (MEPP) in scopolamine treated rats. The methanol extract was subjected for phytochemical analysis to identify different phytochemical constituents. Neuroprotective activity of methanol extract was studied against accelerated ageing with D-galactose followed by scopolamine to induce memory. Behavioral studies, AChE activity, antioxidant parameters of brain homogenate, serum biochemical parameters and histopathological changes of brain were assessed in Control / Scopolamine / Standard / Extract treated animals. Phytochemical investigation of methanol revealed the presence of carbohydrates, proteins, aminoacids, glycosides, triterpinoids, flavonoids and total phenolic content. D-galactose induced oxidative stress and scopolamine induced memory impairment in rats were significantly prevented by treatment with methanol extract of Peltophorum pterocarpum bark. Methanol extract treated group improved memory in elevated plus maze and Y maze tests, reduction in AChE activity, increased activity of brain antioxidant enzymes such as catalase, super oxide dismutase, glutathione and reducing the increased activity of lipid peroxidation and also reduction in serum biochemical parameter glucose, total cholesterol and reverse in the degenerative changes in the histopathological study of the rat brain. Hence methanol extract of Peltophorum pterocarpum treated animals confirmed the protection of brain against oxidative stress, neurodegeneration and behavioral (learning, memory) changes of extract under study.
Peltophorum pterocarpum, AChE, Scopolamine, Neurodegeneration.