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Review
. 2023 Nov 10;24(22):16159.
doi: 10.3390/ijms242216159.

Role of Nasal Nitric Oxide in Primary Ciliary Dyskinesia and Other Respiratory Conditions in Children

Salvatore Paternò  1 , Laura Pisani  1 , Stefania Zanconato  1 , Valentina Agnese Ferraro  1 , Silvia Carraro  1
Affiliations
Review

Role of Nasal Nitric Oxide in Primary Ciliary Dyskinesia and Other Respiratory Conditions in Children

Salvatore Paternò et al. Int J Mol Sci. .

Abstract

Nitric oxide (NO) is produced within the airways and released with exhalation. Nasal NO (nNO) can be measured in a non-invasive way, with different devices and techniques according to the age and cooperation of the patients. Here, we conducted a narrative review of the literature to examine the relationship between nNO and some respiratory diseases with a particular focus on primary ciliary dyskinesia (PCD). A total of 115 papers were assessed, and 50 were eventually included in the review. nNO in PCD is low (below 77 nL/min), and its measurement has a clear diagnostic value when evaluated in a clinically suggestive phenotype. Many studies have evaluated the role of NO as a molecular mediator as well as the association between nNO values and genotype or ciliary function. As far as other respiratory diseases are concerned, nNO is low in chronic rhinosinusitis and cystic fibrosis, while increased values have been found in allergic rhinitis. Nonetheless, the role in the diagnosis and prognosis of these conditions has not been fully clarified.

Keywords: allergic rhinitis; children; cystic fibrosis (CF); nasal nitric oxide (nNO); primary ciliary dyskinesia (PCD); rhinosinusitis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flow chart of the paper selection process.
Figure 2
Figure 2
nNO measurement in PCD diagnosis: methods and result interpretation.
See this image and copyright information in PMC

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