Related Experiment Video
Updated: May 24, 2026

High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia
Published on: January 19, 2022
Nitric oxide in primary ciliary dyskinesia.
Woolf T Walker1, Claire L Jackson, Peter M Lackie
1Primary Ciliary Dyskinesia Diagnostic and Research Team (MP 803) NIHR Respiratory Biomedical Research Unit, Southampton University Hospitals NHS Trust, Tremona Road, Southampton, SO16 6YD, UK.
Nasal nitric oxide is significantly reduced in primary ciliary dyskinesia (PCD), a condition causing recurrent infections. Research explores the mechanisms behind low nitric oxide levels and potential therapeutic benefits.
Area of Science:
- Respiratory Medicine
- Biochemistry
- Genetics
Background:
- Nitric oxide (NO) is synthesized in respiratory epithelium and increases with infection/inflammation.
- Primary ciliary dyskinesia (PCD) involves impaired mucociliary clearance, leading to recurrent sinopulmonary infections.
- Nasal NO levels are markedly reduced in PCD patients, serving as a diagnostic screening tool, though mechanisms remain unclear.
Purpose of the Study:
- To review nitric oxide (NO) synthesis, release, and measurement in the upper airways, focusing on Primary ciliary dyskinesia (PCD).
- To explore hypotheses explaining reduced nasal NO levels in PCD.
- To consider the potential benefits of augmenting airway NO levels in PCD and related conditions.
Main Methods:
- Literature review of epithelial nitric oxide (NO) synthesis, release, and measurement.
- Analysis of proposed hypotheses for low NO in Primary ciliary dyskinesia (PCD).
- Evaluation of potential therapeutic strategies involving NO augmentation.
Main Results:
- Nasal nitric oxide (NO) levels are consistently low in Primary ciliary dyskinesia (PCD) patients despite chronic infections.
- Several hypotheses exist for the reduced NO, but underlying mechanisms require further elucidation.
- NO augmentation may not benefit common PCD but could help secondary dyskinesias and bacterial infections, especially those involving biofilms.
Conclusions:
- Further research is essential to clarify NO biosynthesis in the respiratory epithelium of PCD patients and the role of paranasal sinus anatomy.
- While NO augmentation may not be a primary treatment for typical PCD, it shows potential for secondary dyskinesias and biofilm-associated infections.
More Related Videos
09:03Nasal Brushing Sampling and Processing Using Digital High Speed Ciliary Videomicroscopy – Adaptation for the COVID-19 Pandemic
Published on: November 7, 2020
11:13Collection, Expansion, and Differentiation of Primary Human Nasal Epithelial Cell Models for Quantification of Cilia Beat Frequency
Published on: November 10, 2021
Related Concept Videos
Nitric Oxide Signaling Pathway
Mechanism of Ciliary Motion
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...
Mechanism of Ciliary Motion
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...
Chronic Obstructive Pulmonary Disease-II: Pathophysiology
Chronic Inflammation
Direct-Acting Cholinergic Agonists: Therapeutic Uses
Antihypertensive Drugs: Vasodilators