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- W2374078872 abstract "Objective: To investigate the underlying neuroprotective mechanisms of Tanshinone ⅡA(TSA) on rat cerebral ischemia in vivo.Method: Study of TSA on rat cerebral ischemia in vivo: Male SD rats were divided into four groups(sham-operated,ischemic and treated group(lower dose and higher dose).Chronic cerebral ischemmia after permanent bilateral carotid artery ligation was introduced as an in vivo ischemic model.After ischemia impairment,TSA(2,4 mg·kg-1·d-1) was administrated by ip for 30 days in treated group.We used morris water maze to investigate the learning and memory.Levels of malondialdehyde(MDA),activity of superoxide dismetase(SOD) and glutathione peroxidase(GPX) in brain tissue were detected by spectrophotometer.High-performance liquid chromatography(HPLC) with fluorescence detection was applied to measure the contents of glutamate and gamma-aminobutyric acid(GABA) in cortex and hippocampus.Result: TSA can improve learning and memory deficits in vascular dementia.An elevation of SOD and GPX activity and decrease of MDA level were shown in TSA treated group after brain ischemia.Decreased glutamate and gamma-aminobutyric acid induced by chronic brain ischemia were markedly inhibited by TSA pretreatment.Conclusion: The neuroprotective effect of TSA are partly due to its functions as follow: anti-free radical injury;regulating the content of glutamate and gamma-aminobutyric acid." @default.
- W2374078872 created "2016-06-24" @default.
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- W2374078872 date "2010-01-01" @default.
- W2374078872 modified "2023-09-23" @default.
- W2374078872 title "Neuroprotective effects of tanshinone II_A on vascular dementia in rats" @default.
- W2374078872 hasPublicationYear "2010" @default.
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