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作 者:陈晓宇[1] 荣延平[1] 张士军[1] 黄仁彬[1]
出 处:《中国药房》2013年第19期1735-1738,共4页China Pharmacy
基 金:国家自然科学基金资助项目(No.30960504);广西科学研究与技术开发计划项目(No.桂科攻0630002-2A)
摘 要:目的:研究玉郎伞多糖(YLSPS)对Aβ25-35诱导PC12细胞损伤的保护作用。方法:采用Aβ25-35诱导PC12细胞损伤模型。试验分为6组,即空白对照(无血清DMEM低糖培养基)、模型(10μmol/LAβ25-35溶液)、石杉碱甲(1μmol/L石杉碱甲溶液)与YLSPS高、中、低浓度(1.0、0.1、0.01μg/mlYLSPS溶液,10μmol/LAβ25-35溶液)组。检测细胞培养液与细胞匀浆中超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)、谷胱甘肽(GSH)、一氧化氮(NO)、一氧化氮合酶(NOS)、丙二醛(MDA)水平。结果:细胞培养液和细胞匀浆中,与模型组比较,YLSPS高、中、低浓度组NO、MDA含量显著减少、NOS活性显著减弱,SOD、GSH-Px活性显著增强,GSH含量显著增加(P<0.01或P<0.05)。结论:YLSPS对Aβ25-35诱导PC12细胞损伤具有较好的抗氧化保护作用。OBJECTIVE: To study the antioxidative effect of YLS polysaccharides (YLSPS) on Aβ25-35 induced PC12 cells injury. METHODS: The Aβ25-35 induced PC12 cell injury model. The experiment was divided into 6 groups, blank control (without serum DMEM culture medium with low glucose), model (10 μmol/L Aβ25-35 solution), huperzine A(1 μmol/L of huperzine a solution) and YLSPS high,medium, low concentration (1, 0.1, 0.01 μ g/ml YLSPS solution, 10 μmol/L Aβ25-35 solution) groups. Detection of cell culture supernatant and cell superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione (GSH), nitric oxide (NO), nitric oxide synthase (NOS), malondialdehyde (MDA) levels. RESULTS: In the cell culture medium and the cell cytoplasm, compared with model group, MDA and NO content decreased significantly, NOS activity decreased significantly, SOD and GSH-Px activity were enhanced significantly, GSH content increased significantly(P〈0.01 or P〈0.05) in YLSPS high , mdium, low concentration groups. CONCLUSIONS:YLSPS efficiently protect PC12 cells from oxidative damage induced by Aβ25-35.
关 键 词:玉郎伞多糖 PC12细胞 AΒ25-35 超氧化物歧化酶 谷胱甘肽过氧化物酶 谷胱甘肽 一氧化氮 一氧化氮合成酶 丙二醛
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