Evidence map›Paper›PMID 20096227›Full record

ArticleOtolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery2010

Hypertonic challenge to porcine vocal folds: effects on epithelial barrier function.

Mahalakshmi Sivasankar, Elizabeth Erickson, Mark Rosenblatt, Ryan C Branski

Open access · greenAbstract read
In one paragraph

Article in Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Scoping review of the relationship between xerostomia and voice quality.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2023
    Article
  3. Article
  4. Hydrogel-Supported, Engineered Model of Vocal Fold Epithelium.ACS biomaterials science & engineering · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Prolonged phonation impairs the integrity and barrier function of porcine vocal fold epithelium: a preliminary study.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Vocal fold epithelial barrier in health and injury: a research review.Journal of speech, language, and hearing research : JSLHR · 2014
    Review
  19. Systemic hydration: relating science to clinical practice in vocal health.Journal of voice : official journal of the Voice Foundation · 2014
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Mahalakshmi SivasankarDepartment of Speech, Language, and Hearing Sciences, Purdue University, West Lafayette, IN, USA. msivasankar@purdue.edu
Elizabeth Erickson
Mark Rosenblatt
Ryan C Branski
Purdue University West Lafayette · USCornell University · USMemorial Sloan Kettering Cancer Center · US

Funding

Physiological effects of hyperosmotic vocal fold surface fluidR03DC008690 · NIDCD · PURDUE UNIVERSITY · PI SIVASANKAR, PREETI M. · 2009 to 2011
$450k
NIDCD NIH HHS R03 DC008690PHS HHS 008690
6 · The paper itself

Abstract

objectiveDehydration challenges can increase the chemical composition of surface fluid overlying vocal fold epithelia (hypertonic surface fluid). The vocal fold epithelium is posited to act as a barrier, shielding the lamina propria from perturbations in the airway lumen. However, the effects of hypertonic surface fluid on the barrier functions of vocal fold epithelia have not been quantified. We, therefore, sought to investigate whether hypertonic surface fluid compromises epithelial barrier function. We examined the effects of hypertonic surface fluid on vocal fold epithelial resistance, paracellular pathway morphology, and tight junction protein integrity. STUDY

designEx vivo, between group design.

settingLaboratory.

methodsPorcine vocal folds (n = 24) were exposed to hypertonic or isotonic challenge and examined by electrophysiology, transmission electron microscopy, and Western blot analyses.

resultsHypertonic, but not isotonic, challenge significantly reduced transepithelial resistance. This decrease in resistance was observed immediately after the challenge and was consistent with the appearance of dilated paracellular pathway morphology. However, hypertonic challenge did not alter protein levels of occludin, zona occludens-1, E-cadherin, or beta-catenin.

conclusionHypertonic surface fluid alters epithelial barrier function in the vocal folds. Specifically, exposure to hypertonic challenges increases epithelial permeability. Given the important role of the vocal fold epithelium in shielding the underlying mucosa from inhaled pathogens and pollutants, our data provide the impetus for future studies on pharmacological treatments aimed at restoring the hydration level and chemical composition of vocal fold surface fluid.

Indexed as

AnimalsHypertonic SolutionsLaryngeal MucosaPermeabilitySwineVocal CordsHypertonic Solutions

Identifiers

PMID20096227
PMCPMC2928222
OpenAlexW2070252320

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.