肺动脉重塑在COVID-19中的组织病理学评估
bioRxiv : the preprint server for biology
|December 23, 2024
概括
严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 感染导致肺血管显著重塑,包括动脉壁加厚. 这表明需要监测COVID-19幸存者肺高血压的发展.
科学领域:
- 病理学 病理学 病理学
- 病毒学 病毒学
- 心血管医学 心血管医学
背景情况:
- 严重急性呼吸系统综合征冠状病毒2 (SARS-CoV-2) 导致了COVID-19大流行,影响了呼吸系统以外的多个器官.
- 与ACE2受体的SARS-CoV-2尖端蛋白相互作用将COVID-19与心血管和血管病理联系起来.
- 以前的研究表明,COVID-19已故患者的肺血管壁加厚,光线减少.
研究的目的:
- 为了进一步描述COVID-19患者的肺血管变化.
- 为COVID-19相关的肺血管重塑提供机械洞察力.
- 调查疾病持续时间和血管病理之间的相关性.
主要方法:
- 对来自COVID-19患者的56个尸检肺部样本进行了组织学检查.
- 与H1N1流感患者的肺组织进行比较.
- 对血管壁厚度,光滑肌肉缩,纤维化,水,炎症,血红化和新血管生成的分析.
主要成果:
- 在COVID-19患者14天后观察到小肺动脉血管壁的加厚.
- 肺血管改造包括光滑肌肉缩,周血管纤维化,,淋巴静止,炎症,血化和新血管生成.
- 在住院时间和肺动脉肌肉层厚度增加之间发现了相关性.
结论:
- COVID-19显著影响肺血管,导致重塑.
- 这些发现支持了SARS-CoV-2感染诱导肺血管病理的假设.
- 应评估COVID-19幸存者是否可能发展为肺动脉高血压.
更多相关视频
相关概念视频
COPD: Pathogenesis and Clinical Features
2.1K
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
2.1K
Pulmonary Hypertension: Classification and Pathogenesis
911
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
911
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
5.0K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
5.0K
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
77
Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
77


