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Updated: Jun 13, 2026

A Reversible, Non-invasive Method for Airway Resistance Measurements and Bronchoalveolar Lavage Fluid Sampling in Mice
Published on: April 13, 2010
Global airway disease beyond allergy
Peter W Hellings1, Emmanuel P Prokopakis
1Department of Otorhinolaryngology, Head, and Neck Surgery, University Hospitals Leuven, Kapucijnenvoer 33, Leuven, 3000, Belgium. peter.hellings@uzleuven.be
Inflammation in the upper airways, like rhinosinusitis, negatively impacts lower airways, worsening conditions such as asthma. Treating upper airway inflammation can improve lower airway health.
Area of Science:
- Respiratory Medicine
- Immunology
Background:
- Upper and lower airways are anatomically connected, allowing inflammation in one to affect the other.
- While studied in allergic diseases, this interaction extends to non-allergic conditions like rhinosinusitis, which is linked to asthma and COPD.
- Impaired nasal function in rhinosinusitis can compromise inspired air quality, potentially causing bronchial issues.
Purpose of the Study:
- To provide a comprehensive overview of upper and lower airway communication.
- To explore mechanisms beyond allergic disease linking upper and lower airway inflammation.
- To discuss the impact of rhinosinusitis on bronchial homeostasis and the benefits of its treatment.
Main Methods:
- Literature review of studies on upper and lower airway interactions.
- Analysis of mechanisms including systemic immune activation and distant inflammation induction.
- Examination of rhinosinusitis's role in asthma and COPD pathogenesis.
Main Results:
- Nasal inflammation negatively affects bronchial homeostasis.
- Rhinosinusitis is frequently associated with asthma and COPD.
- Resolution of sinonasal inflammation can lead to clinical improvement in lower airway diseases.
Conclusions:
- Upper and lower airway inflammation are interconnected beyond allergic conditions.
- Rhinosinusitis contributes to lower airway pathology through impaired air conditioning.
- Treating upper airway inflammation offers therapeutic benefits for lower airway diseases.
Related Concept Videos
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Asthma-II: Pathophysiology and Classification
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Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
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