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银杏内酯B在中脑缺血/再灌后大鼠脑组织分布

Pharmaceutical Journal of Chinese People's Liberation Army(2009)

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Abstract
目的研究脑缺血再灌损伤是否影响银杏内酯B在脑内处置。方法大鼠大脑中动脉阻断缺血2h,再灌10min后,静脉注射12mg.kg-1银杏内酯B,于给药后不同时间处死动物,分取用LC/MS方法测定血浆、缺血侧和对照侧脑组织中银杏内酯B浓度。结果缺血侧脑组织中银杏内酯B浓度显著高于对照侧,其AUC约为对照侧的1.88倍。与正常动物比较,脑缺血鼠的血药浓度显著低于正常大鼠,其AUC仅为正常鼠的1/3。结论脑缺血损伤可改变银杏内酯B体内药代动力学行为,增加脑内浓度。
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Key words
ginkgolide B,pharmacokinetics,brain ischemia/reperfusion
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