Related Experiment Video
Updated: May 17, 2026

In vivo Evaluation of Mucociliary Clearance in Mice
Published on: December 18, 2020
Mucociliary function of eustachian tube in atrophic rhinitis
S C Gupta1, Mangal Singh, K K Lai
1Department of E. N. T., M. L. N. Medical College, Allahabad.
Atrophic rhinitis can affect the Eustachian tube, impacting mucociliary function. Over 17% of patients showed delayed clearance, linked to prolonged symptoms and advanced disease stages.
Area of Science:
- Otolaryngology
- Rhinology
- Pathophysiology
Background:
- Atrophic rhinitis is a chronic inflammatory nasal condition.
- Disease progression can involve the nasopharynx, Eustachian tube, and middle ear.
Purpose of the Study:
- To investigate Eustachian tube mucociliary function in atrophic rhinitis patients.
- To correlate mucociliary function with disease duration and severity.
Main Methods:
- Saccharin transit test was used to measure Eustachian tube mucociliary clearance.
- Patient data included symptom duration and disease stage.
Main Results:
- 17.46% of atrophic rhinitis patients exhibited delayed Eustachian tube mucociliary clearance.
- Delayed clearance was associated with longer symptom duration and advanced disease stages.
Conclusions:
- Atrophic rhinitis impairs Eustachian tube mucociliary function.
- Eustachian tube dysfunction may be a significant complication in advanced atrophic rhinitis.
Related Concept Videos
Drugs Used in Upper Respiratory Disorders: Overview
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
Anatomy of Respiratory System I: Upper Respiratory Tract
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla. Benzonatate operates peripherally within the respiratory tract by anesthetizing...
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Microbiota of the Respiratory Tract
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features
