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Effects of electroacupuncture on the functionality of NG2-expressing cells in perilesional brain tissue of mice following ischemic stroke

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neural Regeneration Research 2022年第7期17卷 1556-1565页

作者： Hong Ju Lee Da Hee Jung Nam Kwen Kim Hwa Kyoung Shin Byung Tae Choi Department of Korean Medical Science School of Korean MedicinePusan National UniversityYangsanRepublic of Korea Graduate Training Program of Korean Medicine for Healthy Aging Pusan National UniversityYangsanRepublic of Korea Department of Korean Ophthalmology Otolaryngology and DermatologySchool of Korean MedicinePusan National UniversityYangsanRepublic of Korea

neural/glial antigen 2(NG2)-expressing cells has multipotent stem cell activity under cerebral *** study examined the effects of electroacupuncture(EA)therapy(2 Hz,1 or 3 mA,20 minutes)at the Sishencong acupoint on motor function after ischemic insult in the brain by investigating the rehabilitative potential of NG2-derived cells in a mouse model of ischemic *** stimulation alleviated motor deficits caused by ischemic stroke,and 1 mA EA stimulation was more efficacious than 3 mA EA stimulation or positive control treatment with edaravone,a free radical *** properties of NG2-expressing cells were altered with 1 mA EA stimulation,enhancing their survival in perilesional brain tissue via reduction of tumor necrosis factor alpha *** stimulation robustly activated signaling pathways related to proliferation and survival of NG2-expressing cells and increased the expression of neurotrophic factors such as brain-derived neurotrophic factor,tumor growth factor beta,and neurotrophin *** the perilesional striatum,EA stimulation greatly increased the number of NG2-expressing cells double-positive for oligodendrocyte,endothelial cell,and microglia/macrophage markers(CC1,CD31,and CD68).EA therapy also greatly activated brain-derived neurotrophic factor/tropomyosin receptor kinase B and glycogen synthase kinase 3 beta *** results indicate that EA therapy may prevent functional loss at the perilesional site by enhancing survival and differentiation of NG2-expressing cells via the activation of brain-derived neurotrophic factor-induced signaling,subsequently ameliorating motor *** animal experiments were approved by the Animal Ethics Committee of Pusan National University(approval ***2019-2199 and PNU2019-2884)on April 8,2019 and June 19,2019.

关键词： brain-derived neurotrophic factor differentiation electroacupuncture motor function neural/glial antigen 2 perilesional striatum stroke survival

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