摘要
槐胺碱(Sa)对麻醉猫、兔和大鼠均有明显的降压作用,降压机理与交感神经节阻断作用和直接扩张外周血管有关。离体心脏实验表明,Sa有负性频率,增加冠脉流量和一定的正性肌力作用。Sa能推迟乌头碱诱发的大鼠心律失常发生时间,缩短心律失常的持续时间,并能降低氯仿诱发的小鼠室颤发生率。其对实验性血栓形成和ADP诱导的血小板聚集作用无影响。
Sophoramine ( Sa ) is an alkaloid from sophora alopecuroides. Linn., in anesthetize animals ( cat, rat and rabbit), intravenous adminstra-tion of Sa reduced rapidly and markly the arterial blood pressure. The mechanism of hypotension effect of Sa is mainly attributable to its sympathetic ganglionic blocking and direct vasodilatation. Experiment on the isolated hearts of guinea pig revealed that Sa produced negative chronotropic and positive inotropic action, and increased coronary flow simultaneously. In...
出处
《中国药理学通报》
CAS
CSCD
北大核心
1990年第5期321-324,共4页
Chinese Pharmacological Bulletin
关键词
槐胺碱
降压作用
交感神经节
正性肌力作用
血管扩张
心律失常
Sophoramine
Hypotensive action
Sympathetic ganglia
Positive inotropic action
Vasodilation
Arrhythmia
