白藜芦醇抗喘活性及机制研究

Journal of Guangdong Pharmaceutical University(2012)

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Abstract
目的 观察白藜芦醇对豚鼠在体和离体气管平滑肌的松弛作用,并探讨其作用机制.方法 建立豚鼠哮喘模型,采用豚鼠离体气管条法,观察白藜芦醇对豚鼠气管平滑肌的舒张作用.结果 白藜芦醇可显著延长豚鼠引喘潜伏期,对乙酰胆碱、氯化钾、组胺诱发的气管收缩有明显的舒张作用;吲哚美辛和格列本脲预孵育明显减少了白藜芦醇对离体气管条的舒张作用.结论 白藜芦醇具有平喘和明显的舒张气管平滑肌的作用,其机制可能与钙拮抗、促进前列腺素合成和激活ATP敏感性钾离子通道有关.
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Key words
isolated tracheal smooth muscle,resveratrol,antiasthmatic effect,calcium channel,potassium channel
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