闭口创伤通过等离子素/等离子素系统加剧牙周炎
Xinran Liu1, Jiaxin Li1, Jinle Li2
1The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, China.
Oral diseases
|July 23, 2024
概括
闭口创伤通过增加纤维素沉积和阻碍其分解,使牙周炎恶化. 这项研究揭示了机械力如何通过纤维分析系统影响口腔健康.
科学领域:
- 口腔生物学 口腔生物学
- 生物医学科学 生物医学科学
- 病理学 病理学 病理学
背景情况:
- 牙周炎是一种普遍存在的口腔炎症状况.
- 闭口创伤是牙周炎的已知加重因素.
- 纤维素沉积在牙周组织中有助于疾病的发病.
研究的目的:
- 调查闭塞创伤在牙周炎进展中的作用.
- 为了检查由闭塞创伤对等离子体/等离子体系统的调节.
- 为了确定闭塞创伤对牙周组织中纤维素沉积的影响.
主要方法:
- 在小鼠模型 (n=84) 中诱导了牙周炎和闭塞创伤.
- 通过微计算机断层扫描量化了骨质再吸收.
- 使用各种生物化学和组织学技术测量了纤维素,纤维素,等离子素,等离子素,组织等离子素激活剂 (t-PA) 和尿素酶等离子素激活剂 (u-PA) 的水平.
主要成果:
- 在牙周炎中,闭口创伤加剧了炎症和骨再吸收.
- 在牙周炎中观察到显著的纤维素沉积,在闭塞创伤中进一步增加.
- 闭塞创伤导致纤维素,t-PA和u-PA的减少,以及减少的等离子体和纤维素降解产物,以及增加的等离子体.
结论:
- 闭口创伤通过促进过度纤维素沉积而加剧牙周炎.
- 这种恶化的媒介是抑制等离子体/等离子体系统.
- 了解这种机制为牙周炎管理提供了潜在的治疗目标.
相关概念视频
Formation of the Platelet Plug
5.6K
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...
5.6K
Clot Retraction and Fibrinolysis
5.3K
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.
5.3K
Extrinsic and Intrinsic Pathways of Hemostasis
6.9K
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...
6.9K
Introduction to Hemostasis
7.0K
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,...
7.0K
Phases of Wound Repair
5.9K
Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
5.9K
Anticoagulant Drugs: Low-Molecular-Weight Heparins
663
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...
663


