室内二氧化对COPD患者的肺部,炎症和氧化作用
Erin G McHugh1, Stephanie T Grady1,2, Christina M Collins1
1Research and Development Service, VA Boston Healthcare System, Boston, Massachusetts.
Environmental epidemiology (Philadelphia, Pa.)
|October 16, 2023
概括
慢性阻塞性肺病 (COPD) 患者的室内二氧化 (NO2) 暴露与全身炎症或氧化应激无关. 然而,在严重的COPD患者和BMI较低的患者中,建议减少肺功能.
科学领域:
- 环境健康 环境健康
- 肺部医学 肺部医学
- 毒理学 毒理学 毒理学
背景情况:
- 室内二氧化 (NO2) 源于气体设备和室外透.
- 室内NO2对COPD患者全身炎症,氧化应激和肺功能的影响尚不清楚.
研究的目的:
- 调查室内二氧化 (NO2) 水平与慢性阻塞性肺病 (COPD) 患者全身炎症,氧化应激和肺功能生物标志物之间的关联.
主要方法:
- 招募了144名COPD患者,并使用被动采样章季节性测量室内NO2水平.
- 评估了等离子体生物标志物 (CRP,IL-6),尿路氧化应激标志物 (8-OHdG,MDA) 和螺旋计 (FEV1,FVC).
- 使用线性混合效应回归模型分析关联,根据COPD严重程度和BMI检查效果的修改.
主要成果:
- 室内NO2度的中位数为6.8 ppb. 在室内NO2度的中位数为6.8 ppb.
- 在NO2暴露和全身炎症 (CRP,IL-6) 或氧化应激 (8-OHdG,MDA) 之间没有发现显著的关联.
- 在更严重的COPD患者和BMI<30的患者中,观察到FVC和FEV1的降低趋势.
结论:
- 室内低水平的NO2暴露与COPD患者的全身炎症或氧化应激无关.
- 室内NO2与肺功能减弱之间存在潜在的关联,特别是在患有更严重的COPD和较低体重指数 (BMI) 的个体中.
相关概念视频
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.8K
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
2.8K
01:22Chronic Obstructive Pulmonary Disease
1.3K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
1.3K
01:25Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.
2.8K
Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
2.8K
01:20COPD: Pathogenesis and Clinical Features
309
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...
309
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
2.8K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
2.8K
01:26COPD: Management Using Bronchodilators and Corticosteroids
218
Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
218