在中风病理生理学中的血栓炎症挑战
R D Szepanowski1,2, S Haupeltshofer1,2, S E Vonhof1,2
1Department of Neurology, University Hospital Essen, Essen, Germany.
Seminars in immunopathology
|June 5, 2023
概括
缺血性中风的治疗仍然是一个挑战. 本综述详细介绍了免疫细胞和血小板在血栓炎症级联中的作用,并讨论了针对这种途径的新兴疗法.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 心血管研究研究心血管研究
背景情况:
- 缺血性中风是全球死亡和残疾的主要原因.
- 复杂的血栓炎症级联,包括血栓形成和神经炎症,是中风病理的基础.
- 目前对缺血性中风的治疗方法有限,这凸显了尚未满足的医疗需求.
研究的目的:
- 审查免疫细胞 (中性粒细胞,巨细胞,T细胞,B细胞) 在中风中的细胞特异性和时间依赖性作用.
- 在血栓炎症的背景下,研究血小板和免疫细胞之间的相互作用.
- 为提供针对中风治疗中血栓炎症的当前临床试验的概述.
主要方法:
- 在中风引起的血栓炎症中细胞特异性作用的综合文献综述.
- 对血小板-免疫细胞交叉交互机制的分析.
- 目前正在进行的临床试验 (I-III阶段) 针对血栓炎症向性中风治疗的调查.
主要成果:
- 像中性粒细胞和巨细胞这样的免疫细胞是中风后神经炎症的关键调解者.
- 血小板通过与免疫细胞的相互作用发挥关键作用,影响微血管功能和粘附.
- 针对血栓炎症的几种治疗策略正在临床开发中.
结论:
- 了解复杂的血栓炎症级联对于开发有效的中风治疗非常重要.
- 针对特定的免疫细胞-血小板相互作用提供了有前途的治疗途径.
- 目前正在进行的临床试验在将研究成果转化为患者护理方面取得了重大进展.
相关概念视频
01:30Anticoagulant Drugs: Low-Molecular-Weight Heparins
767
Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
767
01:20Extrinsic and Intrinsic Pathways of Hemostasis
8.4K
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
8.4K
01:30Venous Thrombosis I: Introduction
14
Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
14
01:24Disorders of Hemostasis
1.0K
Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
1.0K
01:16Clot Retraction and Fibrinolysis
6.5K
After a fibrin clot is formed, the next step is clot retraction, a vital process facilitated by platelet contractile proteins, such as actin and myosin. These proteins pull the fibrin strands closer together and condense the clot. This action reduces the size of the clot, creating a smaller, denser structure that effectively seals off the damaged vessel. Clot retraction consolidates the clot and helps with wound healing by bringing the edges of the damaged blood vessel closer together.
6.5K
01:29Venous Thrombosis III: Interprofessional Care
11
Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
11