The Effect of Pulmonary Rehabilitation on Inflammation and Oxidative Stress in COPD
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 发起方
- 入组人数
- 27
- 试验地点
- 1
- 主要终点
- Change in Inflammatory and Oxidative Stress Biomarkers After Pulmonary Rehabilitation in COPD Patients
研究概览
简要总结
Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality worldwide, characterized by persistent airflow limitation, chronic inflammation, and increased oxidative stress. Despite optimal pharmacological treatment, many patients continue to experience symptoms, reduced exercise capacity, and frequent exacerbations. Pulmonary rehabilitation (PR) is an evidence-based, non-pharmacological intervention that improves symptoms, functional capacity, quality of life, and survival in patients with COPD; however, its biological effects on inflammatory and oxidative stress pathways remain insufficiently defined.
This study aims to evaluate the effects of pulmonary rehabilitation on systemic inflammation and oxidative stress in patients with stable COPD. Serum levels of pro-inflammatory cytokines (interleukin-6 [IL-6], tumor necrosis factor alpha [TNF-α]) and the epithelial alarmin interleukin-33 (IL-33), which is released in response to airway epithelial injury, as well as nuclear factor erythroid 2-related factor 2 (NRF-2) gene and/or protein expression as a key regulator of antioxidant defense, will be measured before and after a standardized pulmonary rehabilitation program. By assessing changes in these biomarkers, this study seeks to determine whether pulmonary rehabilitation exerts disease-modifying effects beyond symptomatic improvement and functional outcomes.
The findings are expected to provide novel insights into the biological mechanisms of pulmonary rehabilitation and to support its role as a targeted, cost-effective intervention in the comprehensive management of COPD.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 40 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Adults aged 40-80 years with a diagnosis of stable COPD
- •Airflow limitation defined according to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria (forced expiratory volume in 1 second / forced vital capacity [FEV₁/FVC] < 70% and forced expiratory volume in 1 second [FEV₁] < 70% predicted)
- •Former smokers with a smoking history of at least 10 pack-years
- •Clinically stable disease at the time of enrollment
- •Ability and willingness to participate in the pulmonary rehabilitation program
- •Provision of written informed consent
排除标准
- •Current smokers
- •History of acute COPD exacerbation or respiratory infection within the past 6 weeks
- •Presence of other chronic lung diseases (e.g., bronchiectasis, interstitial lung disease, asthma)
- •Active malignancy
- •Severe or uncontrolled cardiovascular disease, including recent acute myocardial infarction or malignant arrhythmias
- •Neurological, orthopedic, or psychiatric conditions that preclude objective functional assessment or participation in exercise training
- •Use of antioxidant or vitamin supplementation within the past 4 weeks
- •Determination by a cardiologist that participation in an exercise-based rehabilitation program is not medically appropriate
结局指标
主要结局
Change in Inflammatory and Oxidative Stress Biomarkers After Pulmonary Rehabilitation in COPD Patients
时间窗: Baseline (before pulmonary rehabilitation) and after 8 weeks of pulmonary rehabilitation
The primary outcome measure is the change in serum levels of inflammatory and oxidative stress biomarkers following the pulmonary rehabilitation program in patients with stable COPD. Serum concentrations of IL-6, TNF-α, and IL-33, as well as NRF-2 gene and/or protein expression, will be measured before and after the intervention to evaluate the biological effects of pulmonary rehabilitation on systemic inflammation and oxidative stress.
次要结局
- Association Between Changes in Inflammatory and Oxidative Stress Biomarkers and Clinical and Functional Outcomes After Pulmonary Rehabilitation(Baseline (before pulmonary rehabilitation) and after 8 weeks of pulmonary rehabilitation)
研究者
Esra Yazar
Head of Pulmonary Medicine, Clinical Professor
Istanbul Medeniyet University