Evidence map›Paper›PMID 17043812›Full record

ArticlePflugers Archiv : European journal of physiology2007

Stimulation of aquaporin-5 and transepithelial water permeability in human airway epithelium by hyperosmotic stress.

Peter Steen Pedersen, Thomas Hartig Braunstein, Anders Jørgensen, Per Leganger Larsen, Niels-Henrik Holstein-Rathlou, Ole Frederiksen

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Article in Pflugers Archiv : European journal of physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
–field-weighted citation impact
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

14 citing papers in PubMed.

  1. A simple method to generate human airway epithelial organoids with externally orientated apical membranes.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  2. CFTR function and clinical response to modulators parallel nasal epithelial organoid swelling.American journal of physiology. Lung cellular and molecular physiology · 2021
    Article
  3. Review
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  13. Article
  14. Role of aquaporins in lung liquid physiology.Respiratory physiology & neurobiology · 2007
    Review
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

6 authors.

Peter Steen PedersenDepartment of Clinical Genetics, Rigshospitalet, University of Copenhagen, Copenhagen DK2100, Denmark. psp@mfi.ku.dk
Thomas Hartig Braunstein
Anders Jørgensen
Per Leganger Larsen
Niels-Henrik Holstein-Rathlou
Ole Frederiksen

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osmotic water permeability (P(f )) was measured in spheroid-shaped human nasal airway epithelial explants pre-exposed to increasing levels of hyperosmotic stress. The fluid-filled spheroids, derived from nasal polyps, were lined by a single cell layer with the ciliated apical cell membrane facing the outside. The P(f ) was determined from diameter changes of the spheroids in response to changes in bathing medium osmolarity forth and back between 300 and 225 mOsm x l(-1). Continuous diameter measurements also allowed determination of spontaneous fluid absorption. Hyperosmotic pretreatment (increase from 300 up to 600 mOsm x l(-1)) caused a time- and osmolarity-dependent increase (up to approximately 1.5 times) in epithelial P(f ) which was of similar magnitude in cystic fibrosis (CF) and non-CF spheroids. The effect saturated at approximately 450 mOsm x l(-1) and at approximately 24 h. Expression of aquaporin-5 (AQP5), studied by immunofluorescence and confocal microscopy, showed an increase in parallel with the increase in P(f ) following hyperosmotic stress. The AQP5 was localized both in cytoplasmic vesicles and in apical cell membranes. Spontaneous fluid absorption rates were equal in CF and non-CF spheroids and were not significantly influenced by hyperosmotic stress. The results suggest that hyperosmotic stress is an important activator of AQP-5 in human airway epithelium, leading to significantly increased transepithelial water permeability.

Indexed as

Aquaporin 5Cystic FibrosisCytoplasmic VesiclesFemaleFluorescent Antibody TechniqueHumansHypertonic SolutionsMaleNasal MucosaNasal PolypsOsmotic PressurePermeabilitySpheroids, CellularWaterAQP5 protein, humanAquaporin 5Hypertonic SolutionsWater

Identifiers

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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.