【摘要】 猪蛔虫全虫提取物可以延长血浆复钙时间(RT)和白陶土部分凝血活酶时间(KPTT),但不能延长凝血酶元时间(PT),说明全虫提取物只对内源性凝血系统具有抑制作用。全虫提取物可以抑制由ADP所诱导的血小板聚集,而对肾上腺素所诱导的血小板聚集无影响。全虫提取物和体腔液均不能引起纤维蛋白溶解,且全虫提取物不能增强或减弱由尿激酶所致的纤维蛋白溶解。KPTT测定结果表明角皮提取物的抗凝作用最强,而全虫提取物和体腔液相近,提示猪蛔虫的抗凝性物质可能主要存在于虫体的体表。更多还原

【Abstract】 The effects of various soluble extracts of Ascaris suum on human blood coagulation were studied. The extract of whole worm could prolong recalcification time (RT) and kaolin-activated, partial thromboplastin time (KPTT), but did not alter prothrombin time (PT), indicating that the intrinsic pathway of blood coagulation was inhibited by this extract, but the extrinsic pathway was not affected. Whole worm extract inhibited platelet aggregation induced by ADP, but did not influence the one induced by adrenaline. Neither whole worm extract nor body fluid caused fibrinolysis. In KPTT assays with three dif-ferent extracts, cuticle extract exhibited the strongest anticoagulant activity, while whole worm extract and body fluid much less so. These data suggested that anticoagulants of ascaris mainly exist in the cuticle,更多还原