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人参皂甙B对家兔心脏单相动作电位和希氏束电图的影响

金祝秋, 刘崇铭   

  1. 沈阳药科大学, 沈阳 110015
  • 收稿日期:1993-03-01 修回日期:1993-10-06 出版日期:1994-12-15 发布日期:1994-12-15

Effects of Ginsenoside B on Monophasic Action Potential and His-bundle Electrogram of Rabbit Hearts

Zhu-Qiu Jin, Chong-Ming Liu   

  1. Shenyang Pharmaceutical University, Shenyang 110015
  • Received:1993-03-01 Revised:1993-10-06 Online:1994-12-15 Published:1994-12-15

摘要: 运用心导管法和吸引电极法分别研究了人参皂甙B对在体家兔心脏希氏束电图和单相动作电位的影响。人参皂甙B对希氏束电图中的A-HHH-N间期均无明显影响。人参皂甙B l mg/kg能明显缩短在体心脏单相动作电位的坪台期, 甚至使其消失; APAVmaxAPD50APD90无明显影响。结果提示:人参皂甙B可能有阻滞慢钙通道的作用, 对心脏传导系统无明显影响。

关键词: 人参, 人参皂甙, 希氏束电图, 单相动作电位

Abstract: The effects of ginsenoside B on His-bundle electrogram (HBE) and monophasic action potential (MAP) of rabbit hearts were studied by cardio- catheter method and suction electrode method respectively. The A-H, H-V intervals of HBE were not affected by ginsenoside B. Ginsenoside B (l mg/kg) shortened the plateau phase of MAP, but had no influence on APA, Vmax, and APD of MAP. The results suggest that ginsenoside B may exert blockage of the slow calcium channel without any apparent effect on the conduction system of the heart.

Key words: Ginseng, Ginsenoside, His-bundle electrogram, Monophasic action potential

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