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Related Concept Videos

Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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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
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COPD: Pathogenesis and Clinical Features01:20

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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...
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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...
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Chronic Obstructive Pulmonary Disease-I: Introduction01:20

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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.
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Chronic Obstructive Pulmonary Disease01:22

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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.
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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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Related Experiment Video

Updated: Jun 6, 2025

Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy
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Eosinophilic inflammation: a key player in COPD pathogenesis and progression.

Yueh-Lun Lee1, Didik Setyo Heriyanto2, Fara Silvia Yuliani3

  • 1Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.

Annals of Medicine
|December 3, 2024
PubMed
Summary

Eosinophilic inflammation significantly impacts Chronic Obstructive Pulmonary Disease (COPD) progression and exacerbations. Targeting eosinophils offers a promising avenue for precision medicine in COPD treatment.

Keywords:
Airway remodelingasthmaemphysemaeosinophiliaprecision medicine

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Area of Science:

  • Pulmonary Medicine
  • Immunology

Background:

  • Chronic Obstructive Pulmonary Disease (COPD) presents a major global health burden.
  • Eosinophilic inflammation is increasingly recognized as a key driver in COPD pathogenesis and exacerbations.

Purpose of the Study:

  • To review the role of eosinophils in COPD.
  • To examine eosinophil contributions to airway remodeling, exacerbations, and inflammation.
  • To explore therapeutic implications of targeting eosinophilic activity.

Main Methods:

  • A comprehensive literature review was performed.
  • Recent studies on eosinophils in COPD pathophysiology and clinical outcomes were analyzed.

Main Results:

  • Eosinophils exacerbate COPD by releasing cytotoxic mediators that promote inflammation and airway damage.
  • Targeting eosinophil-related cytokines may reduce eosinophil counts and improve COPD outcomes.
  • Therapeutic strategies include monoclonal antibodies and receptor antagonists.

Conclusions:

  • Understanding eosinophil involvement is crucial for developing precision medicine in COPD.
  • Integrating eosinophil biomarkers into clinical practice can enhance treatment decisions and patient management.