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Related Concept Videos

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Microbiota of the Respiratory Tract

The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more like...
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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 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...
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Related Experiment Video

Updated: May 18, 2026

The WinCF Model - An Inexpensive and Tractable Microcosm of a Mucus Plugged Bronchiole to Study the Microbiology of Lung Infections
06:57

The WinCF Model - An Inexpensive and Tractable Microcosm of a Mucus Plugged Bronchiole to Study the Microbiology of Lung Infections

Published on: May 8, 2017

Lung microbiology and exacerbations in COPD.

Victoria Beasley1, Priya V Joshi, Aran Singanayagam

  • 1Imperial College Healthcare NHS Trust, London, UK.

International Journal of Chronic Obstructive Pulmonary Disease
|September 13, 2012
PubMed
Summary

Respiratory infections significantly impact chronic obstructive pulmonary disease (COPD) progression and exacerbations. Understanding the role of viruses and bacteria in COPD is crucial for developing effective prevention and treatment strategies.

Keywords:
COPDbacteriaexacerbationsviruses

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Last Updated: May 18, 2026

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Published on: December 15, 2014

Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Respiratory Medicine

Background:

  • Chronic obstructive pulmonary disease (COPD) is a leading cause of adult morbidity and mortality.
  • Infections are key drivers of COPD exacerbations, leading to accelerated lung function decline.
  • Current treatments for COPD exacerbations lack sufficient efficacy.

Purpose of the Study:

  • To review the current understanding of infection's role in COPD.
  • To highlight controversies and ongoing debates in COPD infection research.
  • To discuss emerging diagnostic and therapeutic approaches for COPD infections.

Main Methods:

  • Literature review of current research on COPD and respiratory infections.
  • Analysis of the etiological agents, including bacteria and viruses.
  • Examination of the impact of infections on COPD pathogenesis and exacerbations.

Main Results:

  • Respiratory infections, both bacterial and viral, are central to COPD pathogenesis and exacerbations.
  • Viruses are increasingly recognized as significant contributors to COPD exacerbations.
  • Preventing exacerbations remains a critical, yet challenging, therapeutic goal in COPD management.

Conclusions:

  • A comprehensive understanding of infection's role is vital for advancing COPD care.
  • New diagnostic tools and therapies are needed to effectively manage COPD exacerbations.
  • Future research should focus on novel strategies targeting respiratory infections in COPD.