在先天性纤维素原体疾病的临床,实验室和分子方面
Alessandro Casini1, Philippe de Moerloose2, Marguerite Neerman-Arbez3
1Division of Angiology and Hemostasis, University Hospitals of Geneva, Geneva, Switzerland.
Seminars in thrombosis and hemostasis
|August 16, 2024
概括
先天性纤维素原乱 (CFDs) 包含各种类型,影响凝血和出血. 诊断依赖于纤维素水平和基因型,新的遗传见解指导个性化风险评估.
科学领域:
- 血液学 血液学 血液学
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 先天性纤维原体疾病 (CFD) 是一组影响纤维原体功能的遗传性疾病.
- 这些疾病包括非纤维蛋白质血症,低纤维蛋白质血症,纤维蛋白质血症和低纤维蛋白质血症,每一种都带来独特的临床挑战.
研究的目的:
- 为了总结各种先天性纤维素原乱的诊断方法.
- 突出临床表现,包括出血和血栓风险.
- 讨论纤维素素在怀孕中的作用以及CFD对产科结果的影响.
主要方法:
- 诊断包括测量纤维素原活性和抗原水平.
- 基因定型对于识别特定的纤维素原变异和理解疾病亚型至关重要.
- 纤维素凝块性质的分析和下一代测序用于基因修饰剂的应用.
主要成果:
- 定量和定性纤维素素缺陷通常会导致血块形成和出血倾向的减少.
- 流血的严重程度与纤维素度相关.
- 矛盾的是,CFD患者面临的血栓事件的风险增加,由突变影响纤维蛋白质结构和水平的影响.
- 有CFD的女性面临更高的不良产科结果的风险.
结论:
- 准确的CFD诊断需要功能测试,抗原测量和遗传分析的组合.
- 了解纤维素原突变,凝块结构和临床表型之间的相互作用对于风险分层至关重要.
- 下一代测序有助于识别基因修饰剂,为精准医学在管理这些异质性疾病铺平了道路.
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
Clot Retraction and Fibrinolysis
5.0K
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.
5.0K
Disorders of Hemostasis
758
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.
758
Cystic Fibrosis: Pathogenesis
199
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
199
Amyloid Fibrils
9.3K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
9.3K
Extrinsic and Intrinsic Pathways of Hemostasis
6.6K
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...
6.6K


