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Related Concept Videos

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

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:
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

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...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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
COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

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...
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations01:19

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet cell...
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...

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Related Experiment Video

Updated: May 20, 2026

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice
15:43

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice

Published on: March 17, 2014

[Airway involvement in relapsing polychondritis].

Naoto Azuma1

  • 1Division of Rheumatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.

Nihon Rinsho Men'Eki Gakkai Kaishi = Japanese Journal of Clinical Immunology
|July 14, 2012
PubMed
Summary

Relapsing Polychondritis (RP) is a rare autoimmune disease causing inflammation in cartilage. Early diagnosis and suppressing airway inflammation are crucial for better outcomes in patients with this serious condition.

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Last Updated: May 20, 2026

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice
15:43

Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice

Published on: March 17, 2014

Area of Science:

  • Rheumatology
  • Immunology
  • Pathology

Context:

  • Relapsing Polychondritis (RP) is a rare, chronic, multisystemic autoimmune disorder.
  • Characterized by recurrent inflammation of cartilaginous tissues (ears, nose, joints, airways) and other proteoglycan-rich structures.
  • Can involve systemic symptoms, vasculitis, and overlap with other autoimmune diseases.

Purpose:

  • To highlight the clinical manifestations and diagnostic challenges of Relapsing Polychondritis.
  • To emphasize the critical role of airway involvement in RP morbidity and mortality.
  • To underscore the importance of early diagnosis and inflammation suppression for effective RP management.

Summary:

  • RP involves inflammation and potential destruction of cartilage and other connective tissues.
  • Autoimmunity is implicated due to disease associations and anti-cartilage antibodies.
  • Diagnostic difficulty arises from the lack of specific clinical or radiological features.

Impact:

  • Airway compromise is the leading cause of mortality in RP patients.
  • Effective treatment requires suppressing inflammation in airway mucosa and cartilage.
  • Earlier diagnosis of RP is strongly associated with improved patient outcomes and reduced mortality.