【摘要】 夏天无总碱(COAMTA)体外实验和体内给药都明显抑制ADP诱导的大鼠血小板聚集,并明显抑制血栓的形成和血小板粘附。COAMTA iv 0.3mg/kg对大鼠实验性血栓形成有明显的抑制作用,抑制率为31.3%。提示上述作用可能是该药治疗脑血管栓塞等疾病有效的机理之一。更多还原

【Abstract】 Corydalis amabilis Migo total alkaloid (COAMTA) given in vitro or in vivo caused an inhibition on ADP-induced blood platelet aggregation. In vitro, COAMTA 15.6, 31.3 & 62.5 μg/ml PRP showed their inhibitory rates of 8.2, 32.0, & 36.8%. In vivo, at 10, 20, 40 min after iv COAMTA ( 0.6 mg/kg ) , the rates of inhibition were 40, 62.8, 24%.The thrombi formed in vitro were measured also. The results showed that COAMTA given in vitro or in vivo reduced the length and weight of thrombus, at same time, reduced rat platelet adhesion.A carotid-jugular extracorporeal shunt was made in the rats. A 6cm length of silk thread was placed in the shunt. 15 min after the restoration of blood flow in the shunt, the Wet weight of thrombus developed on the thread was measured.The thrombus weight was significantly reduced when COAMTA was given iv 0.3, & 0.6 mg/kg, im 0.9 mg/kg & po 1.5 mg/kg. The thrombus weight of control group was 26.1±0.7, but that of the medicated group was 8.9±1.7, 18.0±1.3, 16.4±0,6 a & 19.7±0.7 mg. The inhibitory rates were 66.1, 31.3, 37.2, & 28.4%.更多还原