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。
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.
结论拳参正丁醇提取物对异丙肾上腺素所致大鼠心肌肥厚具有保护作用，其作用机制与清除OFR和提高NO水平有关。
ConclusionBAEB has a protective effect on myocardial hypertrophy caused by Iso, and its mechanism may be related with clearance of OFR and NO concentration promotion.
结论拳参正丁醇提取物对异丙肾上腺素所致大鼠心肌肥厚具有保护作用，其作用机制与清除OFR和提高NO水平有关。
ConclusionBAEB has a protective effect on myocardial hypertrophy caused by Iso, and its mechanism may be related with clearance of OFR and NO concentration promotion.
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