首都医科大学学报 ›› 1997, Vol. 18 ›› Issue (2): 114-117.

• 论著 • 上一篇    下一篇

黄芩甙对大鼠主动脉条收缩的影响

黑爱连, 孙颂三   

  1. 首都医科大学药理学教研室
  • 收稿日期:1996-07-19 修回日期:1900-01-01 出版日期:1997-04-15 发布日期:1997-04-15

Effects of Baicalin on Contraction of Rat Aortic Strips

Hei Ailian, Sun Songsan   

  1. Department of Pharmacology, Capital University of Medical Sciences
  • Received:1996-07-19 Revised:1900-01-01 Online:1997-04-15 Published:1997-04-15

摘要: 分别观察黄芩甙和维拉帕米对大鼠离体主动脉条收缩张力的影响.发现:黄芩甙和维拉帕米均可使NE、KCl及CaCl2所致的大鼠离体主动脉条收缩张力下降,量效反应曲线右移,最大效应降低.黄芩甙的抑制作用弱于维拉帕米.2药均显着抑制NE依赖内Ca2+性收缩与外Ca2+性收缩.提示黄芩甙具有类似维拉帕米的阻滞钙离子通道的作用.

关键词: 黄芩甙, 维拉帕米, 去甲肾上腺素, 氯化钾, 氯化钙, 主动脉条

Abstract: Baicalin(Bai)and verapamil(Ver)inhibited the contractions of isolated rat aortic strips evoked by norepinephrine(NE),KCl and CaCl2. They also caused the dose response curves to shift rightward and depressed the maximal response,but Bai was less potent than Ver. Both Bai and Ver inhibited the fast contraction responses evoked by NEin Ca2+ free medium and slow Ca2+ dependent component on contraction. The results indicated that Bai like Ver, may be a calcium antagonist.

Key words: baicalin, verapamil, norepinephrine, KCl, CaCl2, aorta

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