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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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Chronic Inflammation
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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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Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
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Chronic Obstructive Pulmonary Disease I: Introduction

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Related Experiment Video

Updated: May 29, 2026

Methods for Detecting Cough and Airway Inflammation in Mice
04:33

Methods for Detecting Cough and Airway Inflammation in Mice

Published on: August 2, 2024

Pathophysiology of Cough.

Peter S Giannaris1, Seth E Kaplan2

  • 1Department of Otolaryngology-Head and Neck Surgery, Lenox Hill Hospital/Northwell Health, 130 East 77th Street Black Hall, 10th Floor, New York, NY 10075, USA.

Otolaryngologic Clinics of North America
|May 27, 2026
PubMed
Summary
This summary is machine-generated.

Cough is a complex neuroimmune disorder involving neural circuits and sensitization. Understanding this complexity is key to developing targeted therapies for chronic cough.

Keywords:
Chronic coughCough hypersensitivity syndromeNeuroimmune interactionsP2X3 receptorsVagal afferents

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Last Updated: May 29, 2026

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Published on: August 2, 2024

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Published on: January 10, 2025

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Area of Science:

  • Neuroscience
  • Immunology
  • Respiratory Medicine

Background:

  • Cough pathophysiology involves a complex interplay of neural circuitry, peripheral sensitization, and central plasticity.
  • The cough reflex is regulated by sensory nerves and central brain structures.
  • Chronic cough can arise from peripheral and central sensitization, increasing hypersensitivity.

Purpose of the Study:

  • To elucidate the complex mechanisms underlying cough pathophysiology.
  • To highlight the role of neuroimmune interactions in chronic cough.
  • To emphasize the need for mechanism-directed therapies.

Main Methods:

  • Review of current literature on cough reflex and sensitization.
  • Analysis of neuroimmune pathways involved in cough.
  • Exploration of central plasticity in chronic cough.

Main Results:

  • Cough involves intricate neural circuitry and neuroimmune processes.
  • Peripheral and central sensitization are key mechanisms in chronic cough.
  • Physiologic and environmental factors modulate cough hypersensitivity.

Conclusions:

  • Advanced understanding of cough pathophysiology is crucial.
  • Personalized, mechanism-directed therapies are needed for chronic cough.
  • Future research should focus on neuroimmune targets for cough treatment.