在患有乙型肝炎相关肝硬化患者中,纤维素因子功能障碍和纤维溶解状态
Yu Liu1, Yan Zhuang2, Guanqun Xu1
1Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China.
Hematology (Amsterdam, Netherlands)
|September 2, 2024
概括
乙肝肝硬化会损害纤维素因子的功能,增加化和改变血块的形成和分解. 纤维素分解受损与这些患者的血栓事件有关.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 血液学 血液学 血液学
- 生物化学 生化学
背景情况:
- 与乙型肝炎相关的肝硬化严重影响肝功能,可能会影响像纤维素原这样的凝血因子.
- 纤维蛋白质变异性,纤维蛋白质功能的异常,在肝病中越来越被认可,但其在乙肝肝硬化中的特定作用需要进一步阐明.
研究的目的:
- 评估B型肝炎相关肝硬化患者中的纤维素原功能.
- 在这个患者队列中,研究纤维蛋白缺血症与出血和血栓事件风险之间的关联.
主要方法:
- 收集了B型肝炎相关肝硬化患者的医疗记录和实验室数据,按Child-Pugh得分分层.
- 评估了纤维素因子活性,抗原水平,纤维素因子结合的酸 (FSA),纤维素因子聚合和纤维素解动力学,血-抗血 (TAT) 综合体和等离子素-α2-抗等离子素 (PAP) 综合体.
主要成果:
- 纤维素活性和抗原水平随着肝硬化严重程度的增加而下降 (查尔德-皮格评分).
- 22名患者 (27.5%) 呈现出纤维素生成不良症,其特征是增加的FSA水平与纤维素原活性负相关.
- 观察到纤维激素聚合和纤维解质受损,纤维解质功能障碍更为明显.
结论:
- 纤维素化是B型肝炎相关肝硬化的一个关键修饰,导致聚合和纤维素分解受损.
- 纤维溶解功能受损的严重程度可能会导致这些患者的血栓事件.
相关概念视频
Anticoagulant Drugs: Low-Molecular-Weight Heparins
654
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...
654
Diseases of the Liver and Gallbladder
488
Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not...
488
Disorders of Hemostasis
754
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.
754
Liver Physiology
456
The liver, an essential organ in the human body, performs over 200 vital functions that can be broadly categorized into metabolic, hematological, endocrine regulation, and bile production.
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
Metabolic Regulation:
The liver is the central organ involved in regulating blood composition. It stabilizes blood glucose levels, maintaining them within the range of 70–110 mg/dL. When these levels drop, the liver breaks down glycogen reserves and releases glucose into the bloodstream. It can...
456
Clot Retraction and Fibrinolysis
4.9K
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.
4.9K
Extrinsic and Intrinsic Pathways of Hemostasis
6.5K
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...
6.5K


