论文部分内容阅读
本文研究葛根素对离体血管的作用。异丙肾上腺素使猫的股静脉及肾动脉对甲氧明引发的收缩产生的舒张作用呈剂量依赖式。葛根素能阻滞此种舒张反应,并呈剂量依赖式。普萘洛尔也能阻滞异丙肾上腺素引起的这种舒张。葛根素不能阻滞硝酸甘油引起的舒张反应。这些结果表明葛根素对猫的离体静脉及动脉具有β—受体阻断作用。
This article studies the effect of puerarin on isolated blood vessels. Isoproterenol causes a dose-dependent relaxation of the vasoconstriction induced by methoxamine-induced contractions in femoral veins and renal arteries in cats. Puerarin can block this relaxation response and is dose-dependent. Propranolol also blocks this relaxation caused by isoproterenol. Puerarin does not block the nitroglycerin-induced relaxation response. These results indicate that puerarin has β-receptor blocking effects on isolated cat veins and arteries.