在轻度创伤性脑损伤后,·维勒布兰德因子在血中超急性升高
Rachel Thomas1, Cillian E Lynch1, Jeff Debad2
1Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
Neurotrauma reports
|November 1, 2023
概括
·威尔布兰德因子 (vWF) 在拳击手中轻度创伤性脑损伤 (TBI) 后30分钟内显著增加. 升高的vWF水平与症状严重程度和头部打击相关,这表明它有可能成为急性血管损伤的生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
- 创伤性脑损伤研究研究
背景情况:
- 创伤性脑损伤 (TBI) 每年影响数百万人,轻度TBI占大多数.
- 鉴定急性TBI,特别是血管损伤的敏感生物标志物仍然是一个挑战.
- 以前的研究集中在各种细胞类型上,但血管标志物需要进一步调查.
研究的目的:
- 调查·威尔布兰德因子 (vWF) 作为轻度TBI后急性创伤性血管损伤的敏感生物标志物.
- 评估血vWF水平与创伤后症状严重程度之间的相关性.
- 评估vWF在诊断和监测超急性期血管损伤中的潜力.
主要方法:
- 17名职业拳击运动员在比赛前和比赛后 (30分钟内) 采集的血液样本.
- 使用Meso Scale Discovery (MSD) 的电化学发光测量vWF和神经元特异性酶的等离子水平.
- 使用Rivermead脑震荡后症状问卷 (RPQ-3) 和头部打击计数收集的症状数据.
主要成果:
- 在拳击比赛后30分钟内观察到血vWF水平显著增加1.8倍 (p < 0.0009).
- 在vWF的折叠变化与头部打击数量 (r=0.51,p=0.03) 显示了中度的相关性.
- 在vWF的折叠变化和自我报告的脑震荡后症状之间发现了正相关性 (r=0.69,p=0.002).
结论:
- ·威尔布兰德因子 (vWF) 是一种有前途的血液生物标志物,用于检测轻度TBI中的急性血管损伤.
- 伤害后vWF水平迅速上升,与症状严重程度和影响相关.
- 这种生物标志物可能有助于在超急性阶段诊断和监测创伤性血管损伤.
相关概念视频
01:22Formation of the Platelet Plug
6.5K
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...
6.5K
01:20Extrinsic and Intrinsic Pathways of Hemostasis
8.0K
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...
8.0K
01:05Introduction to Hemostasis
8.1K
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,...
8.1K
01:16Clot Retraction and Fibrinolysis
6.2K
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.
6.2K