在出血患者中,血小板功能缺陷不明原因的血小板脂质组发生变化.
Bianca De Jonckheere1, Dino Mehic2, Dominik Kopczynski3
1Institute of Analytical Chemistry, University of Vienna, Vienna, Austria; Vienna Doctoral School in Chemistry, University of Vienna, Vienna.
Haematologica
|July 24, 2025
概括
血小板脂质概况显示,在患有不明原因出血障碍的患者中,性别特异性差异. 脂质组分析为血小板功能障碍提供了诊断工具,并确定了潜在的治疗标,如三糖醇和酸乙醇胺.
科学领域:
- 血液学 血液学 血液学
- 利皮多米克 (Lipidomics) 是一种消化剂.
- 生物化学 生物化学
背景情况:
- 在轻度至中度出血障碍 (MBD) 中,血小板功能缺陷 (PFD) 通常具有难以捉摸的潜在机制.
- 脂质在血小板信号传递中起着至关重要的作用,表明它们作为诊断标记物的潜力.
研究的目的:
- 为了调查MBD患者的血小板脂质概况,患者有不明原因的PFD.
- 从血小板脂组学中识别潜在的诊断和机制性见解.
主要方法:
- 使用标准化脂管组工作流程对27名不解释性PFD的MBD患者和19名对照患者的血小板脂管组分析.
- 脂质变化的相关性与血小板聚合和对刺激的反应 (ADP,TRAP-6) 在光传导聚合学 (LTA) 中.
主要成果:
- 在患者中观察到性别特定的脂质转移,女性的偏差更大.
- 脂质变化与血小板聚合受损相关,并预测了对ADP和TRAP-6的反应.
- 女性的具体变化包括高调节的多不和三糖醇 (PUFA-TGs) 和甲酸盐 (CARs),以及降低的溶解酸丁乙醇胺 (LPEs).
结论:
- 脂质组分析是无法解释的血小板功能障碍的有前途的诊断方法.
- 三糖醇 (TGs),CAR和LPE是出血障碍的潜在治疗点.
- 对脂质驱动的血小板调节的进一步研究可以推进个人化治疗MBD.
相关概念视频
Formation of the Platelet Plug
7.1K
The platelet phase, the second stage of hemostasis, commences around 15-20 seconds after an injury. It follows and overlaps with the vascular phase, during which blood vessels constrict to minimize blood loss.
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
As the injured blood vessel contracts, endothelial cells undergo contraction, revealing collagen fibers in the basement membrane and underlying connective tissue. Furthermore, the plasma membrane of endothelial cells becomes adhesive, preparing the site for platelet adhesion. Platelets...
7.1K
Disorders of Hemostasis
1.2K
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.
1.2K
Structure and Function of Platelets
1.5K
The cell fragments known as platelets are disc-shaped, with an average diameter of about 3 μm and a thickness of roughly 1 μm. They play a crucial role in the body's vascular clotting system, which also involves plasma proteins, blood cells, and blood vessel tissues.
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
Platelets are continually replenished, circulating in the bloodstream for 9-12 days before being removed by phagocytes, primarily in the spleen. A microliter of circulating blood contains between 150,000 and 450,000...
1.5K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
911
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...
911
Antiplatelet Drugs: Prostaglandin Synthesis, P2Y12 and Glycoprotein IIb/IIIa Inhibitors
646
Antiplatelet drugs emerge as frontline defenders against the insidious threat of thromboembolic diseases, where abnormal clots obstruct vital blood vessels. These drugs stand as bulwarks, inhibiting platelet aggregation and clot formation, thereby mitigating the risk of life-threatening conditions like myocardial infarction, coronary artery disease, and thrombotic strokes.
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
Prostaglandin synthesis inhibitors, exemplified by the widely known aspirin, wield their power by irreversibly acetylating...
646
Introduction to Hemostasis
8.9K
Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
8.9K


