用切割依赖的血小板功能测试测试血小板激活的测试与基于聚合的测试:对监测长期糖蛋白IIb/IIIa抑制的相关性
J I Osende1, V Fuster, E I Lev
1Cardiovascular Institute, Mount Sinai School of Medicine, New York, NY, USA.
Circulation
|March 21, 2001
概括
一种新的流量依赖性血小板沉积测试可以准确地监测糖蛋白IIb/IIIa的抑制,而不需要基线值. 这种方法在抗血小板治疗后的传统试验相比,更好地反映了体内血小板功能.
科学领域:
- 心血管医学 心血管医学
- 血液学 血液学 血液学
- 药理学 药理学是指药理学的学科.
背景情况:
- 目前的糖蛋白 (GP) IIb/IIIa阻塞监测测试缺乏体内准确性,需要基线值.
- 在剪切应力下,GP IIb/IIIa对于血小板聚合和血栓形成至关重要.
研究的目的:
- 评估一个流量依赖的血小板沉积测试 (和血小板分析仪,CPA) 监测GP IIb/IIIa抑制.
- 将CPA与体外血小板聚合计和快速血小板功能检测 (RPFA) 进行比较.
主要方法:
- 在GP IIb/IIIa抑制 (abciximab) 后,对血小板功能的CPA与聚合计和RPFA进行比较.
- 在试验室中测试了abciximab度的增加,并对血小板功能进行了实体监测,持续了一周.
主要成果:
- CPA与自由GP IIb/IIIa受体的相关性比聚合计或RPFA更好.
- 作为基线比率的RPFA与CPA相当.
- 活体外,CPA检测出长时间的血小板抑制和逐渐恢复,与聚合计不同.
结论:
- 剪切诱导的血小板沉积 (CPA) 可靠地监测广泛的GP IIb/IIIa抑制.
- 这种方法的准确性独立于基线参考值.
- 评估GP IIb/IIIa封锁效应需要高剪切条件.
相关概念视频
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Formation of the Platelet Plug
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...


