碳酸多态体通过血小板度和释放来增强酸血中的凝血
Roni M Hendler1,2, Orly E Weiss1,3, Bhuwan Bhaskar1
1Department of Molecular Biology, Ariel University, Ariel, Israel.
Journal of applied biomaterials & functional materials
|February 19, 2026
概括
碳酸 (CaCO3) 在治疗酸盐抗凝剂引起的出血方面表现有前途. 这项研究发现,CaCO有效促进血液凝结和血小板聚合,抵消酸盐.
科学领域:
- 生物化学 生物化学
- 血液学 血液学 血液学
- 材料科学 材料科学 材料科学
背景情况:
- 酸盐抗凝剂,用于输血和体外疗法,化离子,导致低血症和凝血病.
- 这种酸盐诱导的凝血病会增加出血风险,并可能导致出血性休克.
- 在这种情况下,当前用于出血的局部血静止剂可以作为物理障碍或激活凝血通路.
研究的目的:
- 调查碳酸 (CaCO) 作为一种潜在的血液静止剂,用于抵抗酸盐诱导的凝血病.
- 评估CaCO3通过释放离子和血小板聚合促进凝血的能力.
主要方法:
- 在体外测试中,使用用各种CaCO3多态 (阿拉戈尼特,酸盐) 处理的酸盐血液进行了测试.
- 凝血时间的测量 (前血时间,部分血质细胞时间).
- 评估自由水平和血小板计数/结合.
主要成果:
- CaCO3多态体显著增强了血中的凝血.
- 石颗粒减少了凝血时间高达2倍,减少了13%的前列血时间和24%的部分血栓形成时间.
- 酸盐增加了6.6倍的血自由,减少了13%的循环血小板和直接结合的血小板.
结论:
- CO,特别是石,显示出作为酸盐诱导的凝血病的静血剂的潜力.
- 它的双重作用是提高和聚集血小板,为输血医学和重症监护中管理出血提供了一种新的方法.
相关概念视频
Coagulation
1.5K
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
1.5K
Coagulation
11.1K
The coagulation phase is a critical part of the body's process to prevent blood loss following injury to blood vessels. It involves chemical reactions that form a clot to seal the injured area. The clotting process begins shortly after injury, within 15-20 seconds for severe damage and 1-2 minutes for minor injuries.
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
11.1K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
2.1K
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...
2.1K
Factors Affecting Solubility
37.5K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.5K
Formation of the Platelet Plug
9.8K
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...
9.8K
Clot Retraction and Fibrinolysis
9.5K
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.
9.5K


