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作 者:唐映红[1] 梁燕[2] 张淑萍[2] 杨静[2] 邓冰湘[2] 邓常青[2]
机构地区:[1]湖南中医药大学药学院药理教研室,湖南长沙410208 [2]湖南中医药大学病理生理实验室,湖南长沙410007
出 处:《中国实验方剂学杂志》2007年第6期39-42,共4页Chinese Journal of Experimental Traditional Medical Formulae
基 金:教育部科学技术研究重点项目(204100);湖南省教育厅重点项目(03A033)
摘 要:目的:研究补阳还五汤及其生物碱、苷两类有效组分对FeCl3所致大鼠颈总动脉血栓形成后抗凝血酶Ⅲ(AT-Ⅲ)和蛋白C(PC)活性的影响。方法:大鼠给药后以35%FeCl3诱导颈总动脉血栓形成,以发色底物法测定血浆AT-Ⅲ和PC活性。结果:FeCl3可诱导颈总动脉血栓形成。补阳还五汤及其有效组分生物碱、苷可使颈总动脉血栓重量减轻(P<0.05)。模型组AT-Ⅲ活性低于假手术组(P<0.01);与模型组比较,生物碱组和补阳还五汤原方组AT-Ⅲ活性均显著降低(P<0.01),而苷组与模型组比较差异无显著性意义(P>0.05)。模型组PC活性与假手术组比较有所降低(0.10>P>0.05);与模型组比较,生物碱组PC活性显著降低(P<0.05),而苷组和原方组PC活性与模型组比较则显著性升高(P<0.01),且苷和原方组PC活性高于假手术组(P<0.01)。结论:补阳还五汤、生物碱和苷可抑制血栓形成。补阳还五汤原方既可能通过与AT-Ⅲ结合而发挥抗凝作用,又可防止血栓形成后血浆中PC的消耗。其有效组分生物碱既可能通过与AT-Ⅲ结合而灭活凝血因子,又可能促进了PC对凝血因子的灭活,从而发挥抗凝作用。苷的抗血栓可能不是通过AT-Ⅲ和PC介导的。Objective:To investigate effect of Buyang Huanwu Decoction (BHD) and its active fractions such as alkaloid and glycoside on activities of antithromhin Ⅲ ( AT- Ⅲ ) and protein C ( PC ) after carotid arterial thrombosis induced by ferric chloride in rats. Methods: Rats were administered with tested drugs and then left carotid artery was applied with FeCl3 to form thromhus. The activities of antithrombin Ⅲ (AT-Ⅲ ) and protein C(PC) in plasma in rats were determined by chromogenic suhstrate assay. Results: BHD, alkaloid and glycoside could decrease thrombotic weight ( P 〈 0.05). The activities of AT-Ⅲ in the model group were significantly lower than those of the sham-operated group( P 〈 0.01). The activities of AT-Ⅲ in BHD and alkaloid group were markedly lower than those of the model group( P〈 0.01 ), No significant difference was found in activities of AT-Ⅲ between the glycoside and model group (P 〉 0.05 ). The activities of PC in the model group were slightly lower than those of the sham-operated group (0.10 〉 P 〉 0.05).Compared with the model group, the activities of PC in alkaloid group were decreased ( P 〈 0.05). But the activities of PC in BHD and glycoside group were increased when compared to the model group( P 〈 0.01 ) and sham group( P 〈 0.01). Conclusions: BHD, alkaloid and glycoside could inhibit thrombosis. Antithrombotic actions of BHD may be related to binding with AT-Ⅲ, and it could also prevent the consumption of PC after carotid arterial thrombosis. Antithrombotic action of alkaloid may concerne inactivating coagulation factors by binding with AT-Ⅲ or accelerating inactivation of coagulation factors by PC.Antithrombotic action of glycoside may not be related to AT-Ⅲ and PC.
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