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和血生络法对大鼠离体胸主动脉环舒张作用及机制的探讨

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摘要 目的观察"和血生络法"对血管舒张功能的影响,并探讨其机制。方法检测和血生络方对NE、KCl、普萘洛尔、L-NAME、MB及IM预处理内皮完整和(或)去内皮主动脉环的影响。结果对主动脉环基础张力的无明显影响。对KCl、普萘洛尔预收缩去内皮主动脉环张力无明显作用。对NE预收缩内皮完整和去内皮主动脉环均有明显舒张作用。对L-NAME、MB预处理内皮完整主动脉环舒张作用明显减弱;对IM预处理内皮完整主动脉环舒张作用无明显影响。结论和血生络法通过内皮依赖性及非内皮依赖性两方面实现血管舒张作用。NO-sGC-cGMP途径可能介导了内皮依赖性舒血管作用。非内皮依赖性血管舒张作用与抑制电压依赖性钙通道无关,亦与β2受体无关。
出处 《时珍国医国药》 CAS CSCD 北大核心 2011年第9期2281-2283,共3页 Lishizhen Medicine and Materia Medica Research
基金 河北省自然科学基金(No.C2008000723)
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