Jae-Min Lee, Eun-Sang Ji, Tae-Woon Kim, Chang-Ju Kim, Mal-Soon Shin, Baek-Vin Lim, Yong-Rak Chung, Young Sam Cho
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영어(ENG)
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https://www.earticle.net/Article/A339255
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영어
Epilepsy is characterized by recurrent seizures and loss of neurons with abnormal rhythmic firing in the brains. In the present study, we investi-gated the effect of treadmill exercise on memory function in relation with cell proliferation and apoptosis in the hippocampus using pilocar-pine-induced seizure rats. Epilepsy was initiated by intraperitoneal in-jection of pilocarpine hydrochloride. The rats in the exercise group were forced to run on a motorized treadmill for 30 min once a day for 2 weeks. In the present results, treadmill exercise alleviated short-term and spatial learning memory impairments in the epileptic rats. Treadmill exercise suppressed neuronal degeneration and enhanced neuronal maturation in the epileptic rats. Treadmill exercise suppressed cell pro-liferation and apoptosis in the epileptic rats. Treadmill exercise alleviat-ed pilocarpine-induced memory impairments and suppressed neuronal loss in the hippocampus through down-regulation of apoptosis. These findings offer a possibility that treadmill exercise may provide a preven-tive or therapeutic value to the epilepsy-induced learning and memory impairments.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Experimental animals Pilocarpine-induced epilepsy Treadmill exercise protocol Step-down avoidance task Radial-arm maze task Tissue preparation BrdU Immunohistochemistry Immunohistochemistry for NeuN, caspase-3, DCX TUNEL staining Fluoro-Jade B staining Western blot analysis Statistical analysis RESULTS Latency of the step-down avoidance task Correct number and error number of the radial-arm maze task Fluoro-Jade B-positive and NeuN-positive cells in the hippocampal CA1 region BrdU-positive and DCX-positive cells in the hippocampal dentate gyrus Caspase-3-positive and TUNEL-positive cells in the hippocampal CA1 region Bax and Bcl-2 expressions in the hippocampus DISCUSSION CONFLICT OF INTEREST REFERENCES