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Updated: Jun 27, 2025

06:47
Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
842
口服抗凝剂的活体抗血小板作用
Giulia Renda1, Valentina Bucciarelli2, Giulia Barbieri3
1Department of Neuroscience, Imaging and Clinical Sciences and Center for Advanced Studies and Technology, G. d'Annunzio University Chieti-Pescara, 66100 Chieti, Italy.
Journal of cardiovascular development and disease
|April 26, 2024
概括
非维生素K对抗剂口服抗凝剂 (NOACs) 影响血小板功能和血栓生成. 达比加特兰和XA因子抑制剂对血小板聚合和受体表达有明显的影响.
科学领域:
- 药理学 药理学是指药理学的学科.
- 血液学 血液学 血液学
- 心血管研究研究心血管研究
背景情况:
- 非维生素K抗剂口服抗凝剂 (NOACs) 对血小板功能的确切影响仍然不完全理解.
- 进行了全面的ex vivo调查,以评估市场上NOACs对血小板活性的影响.
研究的目的:
- 评估四种已上市的NOACs对健康供体血液样本中的血小板功能的ex vivo影响.
- 为了比较达比加特兰和XA因子抑制剂对各种血小板激活途径的影响.
主要方法:
- 用不同度的NOACs (50, 150, 250 ng/mL) 进行血液样本的化.
- 评估由ADP,TRAP,THR和TF诱导的血栓生成,光传导性血小板聚合 (LTA).
- 测量血红素B2 (TXB2) 生产和表达PAR-1和P-selectin的测量.
主要成果:
- 所有NOAC都在度的依赖下降了血栓生成.
- 达比加特兰抑制了THR诱导的LTA,而FXa抑制剂减少了TF诱导的LTA;ADP和TRAP诱导的LTA不受影响.
- 与所有NOAC一起,TXB2生成减少,而达比加特兰增加了PAR-1表达,与FXa抑制剂不同.
结论:
- NOAC治疗导致可测量的ex vivo血小板功能变化,这表明除了抗凝固之外还有抗血小板作用.
- 在NOACs之间存在明显的血小板功能调节差异,特别是在达比加和FXa抑制剂之间.
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