Similar effect of lidocaine and saline on ciliary beating of nasal epithelial cells in vitro
crossref(2024)
摘要
Rationale Primary ciliary dyskinesia is a rare genetic disease affecting ciliary motility and causing respiratory symptoms. Diagnosis can be done by high-speed- videomicroscopy using nasal epithelial cells (NECs) obtained via brushings. This procedure can be painful, especially for children. The use of lidocaine is proposed to reduce this pain; however, it is not clear whether lidocaine changes ciliary beating frequency (CBF) or pattern (CBP) in the subsequent high-speed-videomicroscopy.
Objective The aim of this study was to analyse the effect of lidocaine on the CBF and the CBP of differentiated, air-liquid-interface cultured NECs.
Methods NECs from healthy volunteers were obtained via brushings and cultured at the air-liquid-interface. After differentiation, lidocaine or isotonic saline (IS, control) were added apically for 1 or 5 min each and CBF (in top view of whole inserts and side views of scratched cells) and CBP (only side view) were assessed and recorded up to 150 min. CBF was computed and CBP was analysed semiquantitatively.
Results Lidocaine as well as IS increased the CBF in the top view approach significantly compared to baseline. However, we found no significant differences between lidocaine and IS (control) treatment. Additionally, no effect of lidocaine on CBF, CBP, amplitude, inter- and intracellular coordination or transport was seen in the side view approach.
### Competing Interest Statement
The authors have declared no competing interest.
### Funding Statement
This study was supported by the German Academic Scholarship Foundation (Studienstiftung des Deutschen Volkes) (scholarship for Sibel T. Savas).
### Author Declarations
I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.
Yes
The details of the IRB/oversight body that provided approval or exemption for the research described are given below:
Ethics Committees of the University Children Hospital, Inselspital Bern and of the Canton Bern, Switzerland gave ethical approval for this work (reference number 2018-02155).
I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals.
Yes
I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).
Yes
I have followed all appropriate research reporting guidelines, such as any relevant EQUATOR Network research reporting checklist(s) and other pertinent material, if applicable.
Yes
All data produced in the present study are available upon reasonable request to the authors.
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