Grape polyphenols protect neurodegenerative changes induced by chronic ethanol administration.

Grape polyphenols protect neurodegenerative changes induced by chronic ethanol administration.
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葡萄多酚可以保护长期服用乙醇引起的神经退行性变化。

DOI:
10.1097/00001756-199901180-00018
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发表时间:
1999
期刊:
影响因子:
1.7
通讯作者:
Sun,AY
Sun,AY
中科院分区:
医学4区
文献类型:
--
作者:
Sun,GY;Xia,J;Draczynska-Lusiak,B;Simonyi,A;Sun,AY

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众所周知,长期乙醇消耗导致大脑氧化应激增加,会导致许多神经退行性变化。本研究旨在测试饮食中补充葡萄多酚 (GP) 是否可以为长期乙醇消耗引起的神经退行性变化提供保护。 Sprague-Dawley 大鼠采用含有乙醇或等热量麦芽糖的 Leiber-DeCarli 流质饮食,并加或不加 GP 喂养 2 个月。与配对喂养对照组相比,长期乙醇导致突触体Na、K-ATP酶(20.5%)和多巴胺摄取(22.8%)活性显着降低。虽然单独使用 GP 不会改变这些膜结合蛋白的活性,但补充 GP 能够完全保护因长期乙醇消耗引起的突触蛋白功能下降。
INCREASED oxidative stress in the brain due to chronic ethanol consumption is known to result in a number of neurodegenerative changes. This study was designed to test whether dietary supplementation of grape polyphenols (GP) can offer protection to the neurodegenerative changes resulting from chronic ethanol consumption. Sprague-Dawley rats were fed a Leiber-DeCarli liquid diet with ethanol or isocaloric amount of maltose, and with or without GP for 2 months. Chronic ethanol caused significant decreases in synaptosomal Na, K-ATPase (20.5%) and dopamine uptake (22.8%) activities compared with pair-fed controls. Although GP alone did not alter activities of these membrane-bound proteins, GP supplementation was able to completely protect the decrease in synaptic protein function elicited by chronic ethanol consumption.
细胞色素 P450 2E1 (CYP2E1) 在大鼠中枢神经系统中的表达、催化活性和诱导能力
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