相关实验视频
Updated: Jul 26, 2025

10:08
Pseudofracture: An Acute Peripheral Tissue Trauma Model
Published on: April 18, 2011
14.8K
多重创伤后患者中性粒细胞衍生因子的升高
Marie-Therese Lingitz1, Gregor Wollner2, Jonas Bauer3
1Division of General Anesthesia and Intensive Care Medicine, Department of Anesthesia, Critical Care and Pain Medicine, Medical University of Vienna, Vienna, Austria.
Journal of cellular and molecular medicine
|June 17, 2023
概括
创伤患者显示中性粒细胞弹性酶 (NE) 和髓氧化酶 (MPO) 的水平增加. 针对中性粒细胞激活可能为严重受伤的个体提供新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 创伤研究 创伤研究
- 关键护理医学 关键护理医学
背景情况:
- 创伤是全球主要的死亡原因,引发了显著的炎症反应.
- 中性粒细胞是对抗受伤的先天免疫防御的关键参与者.
- 炎症反应的失衡可能导致严重的疾病,如SIRS或CISS.
研究的目的:
- 在创伤患者中研究系统性中性粒细胞衍生的免疫调节剂.
- 测量中性粒细胞弹性酶 (NE),髓氧化酶 (MPO) 和素化组合素H3 (CitH3) 的血清水平.
- 分析这些因素与临床严重程度和结果的关联.
主要方法:
- 在创伤患者中测量了NE,MPO和CitH3的血清水平 (ISS>15).
- 还评估了白细胞,血小板,纤维素原和CRP水平.
- 中性粒细胞衍生因素与临床严重性评分系统相关.
主要成果:
- 与健康对照人群相比,创伤患者的MPO和NE水平显著升高.
- 在严重受伤的患者中,创伤后的第1天和第5天观察到增加的MPO和NE水平.
- 虽然不能预测死亡率,但这些标志物表明中性粒细胞激活.
结论:
- 中性粒细胞激活在对创伤的全身反应中起着重要作用.
- 升高的NE和MPO表明中性粒细胞脱粒和细胞外陷形成的作用.
- 针对过度的中性粒细胞激活可能是严重创伤的潜在治疗途径.
相关概念视频
Inflammation
54.0K
Overview
54.0K
Phases of Wound Repair
6.1K
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...
6.1K
Inflammatory Response
2.2K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.2K
Differentiation of Common Myeloid Progenitor Cells
3.2K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.2K
Inflammatory Response I: Vascular and Cellular
11.5K
The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
11.5K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
5.1K
The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
5.1K

