CONCLUSION Rhubarb has exciting actions on isolated antral circular strips of guinea pig, which is partly mediated via cholinergic M receptor, cholinergic N receptor and L-type calcium channel.

结论大黄对豚鼠胃窦环行肌条的收缩活动有兴奋作用。 大黄的这一兴奋作用部分经由胆碱能M受体、胆碱能N受体和L-型钙通道介导。

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ObjectiveTo investigate the effect of Polygonum Bistorla L. n-Butyl alcohol extract on autorhythmicity and contraction of isolated right atrium of guinea pig and its mechanism.

目的研究拳参正丁醇提取物对豚鼠离体右心房自律性及收缩特性的影响，并探讨其作用机制。

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