冰片对黄芪甲苷和三七总皂苷配伍有效成分在脑缺血/再灌注模型大鼠脑组织分布的影响

目的探讨冰片是否具有促进黄芪甲苷(AST IV)和三七总皂苷(PNS)配伍时主要有效成分透过大脑中动脉栓塞(MCAO)再灌注模型大鼠血脑屏障的作用。方法大鼠随机分为假手术组、模型组、冰片组、AST IV组、PNS组、AST IV+PNS组、冰片+AST IV+PNS组,制备MCAO再灌注大鼠模型,以液相色谱-质谱联用法(LC-MS/MS)测定大鼠患侧与健侧大脑皮层、小脑中AST IV和PNS有效成分(人参皂苷Rg1、Rb1和三七皂苷R1)的含量。结果 AST IV无论是单用还是与PNS、冰片配伍,其口服后主要分布在大脑皮层,尤其是患侧大脑皮层。冰片+AST IV+PNS能使患侧与健侧大脑皮层中AST IV含量显著增加。PNS单用,其有效成分人参皂苷Rg1、Rb1和三七皂苷R1主要分布在患侧小脑。冰片+AST IV+PNS能使患侧大脑皮层中人参皂苷Rb1含量显著增加,使健侧和患侧大脑皮层中人参皂苷Rg1含量增加,使大脑皮层尤其是患侧大脑皮层及小脑中三七皂苷R1含量增加。结论大鼠脑缺血再灌注后,AST IV与PNS的有效成分人参皂苷Rb1、Rg1及三七皂苷R1在大脑皮层和小脑均有一定的分布。AST IV单用时,AST IV主要分布在大脑皮层;PNS单用时,人参皂苷Rb1、Rg1及三七皂苷R1主要分布在小脑。冰片与AST IV、PNS合用后,能促进AST IV及人参皂苷Rb1、Rg1及三七皂苷R1向大脑皮层富集,尤其是向缺血再灌注侧大脑皮层富集;而且能不同程度地促进AST IV,人参皂苷Rb1、Rg1及三七皂苷R1在大脑皮层的吸收,尤其是在患侧大脑皮层的吸收。

Study on borneol combined with astragaloside IV and Panax notoginseng saponins promoting bioactive components into brain in cerebral ischemia/reperfusion model of rats

Objective To investigate whether borneol can promote the bioactive components of the combination of astragaloside IV (AST IV) and Panax notoginseng saponins (PNS) into the blood-brain barrier of rats with middle cerebral artery occlusion (MCAO)/reperfusion. Methods Using the model of MCAO/reperfusion, rats were randomly divided into sham-operation group, model group, borneol group, AST IV group, PNS group, AST IV + PNS group and borneol + AST IV + PNS group, and the content of AST IV and the bioactive components of PNS (ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁) in the cerebral cortex and the cerebellum of the affected side and the healthy side were determined by liquid chromatography-mass spectrometry (LC-MS/MS). Results AST IV, whether used alone or combined with PNS and borneol, was mainly distributed in the cerebral cortex after oral administration, especially in the affected cerebral cortex. Borneol combined with AST IV and PNS significantly increased the content of AST IV in the affected and the healthy cerebral cortex. The bioactive components of PNS such as ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁ was mainly distributed in the affected side of the cerebellum when PNS was used alone. Borneol combined with AST IV + PNS significantly increased the content of ginsenoside Rb₁ in the cerebral cortex, especially in the affected cortex, increased the content of Rg₁ in the healthy and the affected cortex, and increased the content of notoginsenoside R₁ in the cerebral cortex, especially in the affected cortex, as well as in the cerebellum. Conclusion AST IV and the bioactive components of PNS such as ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁ have a certain distribution in the cerebral cortex and the cerebellum after cerebral ischemia-reperfusion in rats. AST IV was mainly distributed in the cerebral cortex when it was used alone, ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁ were mainly distributed in the cerebellum when PNS was used alone. The combination of borneol combined with AST IV and PNS can promote the gather of AST IV, ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁ to the cerebral cortex, especially to the cortex of the ischemia-reperfusion side; Moreover, it can promote the absorption of AST IV, ginsenoside Rg₁, ginsenoside Rb₁, and notoginsenoside R₁ in the cerebral cortex to varying degrees, especially in the affected cortex.