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血栓溶解对ST段升高心肌梗塞患者的循环微粒的影响
Zhe Li1, Wei Zhang1, Qun-Rang Wang2
1Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China.
Cardiovascular therapeutics
|November 29, 2023
概括
微粒 (MP) 在冠心病中升高. 在ST段升高心肌梗塞 (STEMI) 中的血栓溶解并没有增加MP水平,但改变了它们的功能,可能导致缺血-再输血损伤.
科学领域:
- 心血管生物学 心血管生物学
- 生物化学 生物化学
- 病理生理学 病理生理学
背景情况:
- 在患有冠心病的患者中,循环微粒 (MP) 升高,包括慢性冠心综合征 (CCS) 和急性冠心综合征.
- 血栓溶解对ST段升高心肌梗塞 (STEMI) 的MP的影响尚不清楚.
研究的目的:
- 研究血栓溶解对STEMI患者的MP水平和功能的影响.
- 评估STEMI和CCS患者的MPs对内皮功能和氧化应激的体外影响.
主要方法:
- 研究包括接受血栓溶解的STEMI患者 (T组),CCS患者 (CCS组) 和健康对照.
- MPs从血栓分析前后收集的血液样本中分离出来.
- 在体外分析了MPs对氧化合成酶 (eNOS, iNOS),氧化 (NO),氧自由基 (O2•−) 和血管扩张的作用.
主要成果:
- 与对照组相比,CCS和前血栓溶解STEMI患者的MP度更高.
- 血栓溶解在STEMI患者中没有显著增加MP水平.
- 来自CCS和STEMI患者的MP抑制了eNOS和NO的产生,同时刺激了eNOS和O2•−的产生,在血栓溶解后效果得到了增强.
结论:
- 在STEMI中的血栓溶解改变了MP功能,可能导致缺血-再输血损伤.
- 国会议员可能在冠心病的病理生理学及其治疗并发症中发挥作用.
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