Evidence map›Paper›PMID 14557401›Full record

ArticleThe Journal of general physiology2003

Sodium and chloride concentrations, pH, and depth of airway surface liquid in distal airways.

Yuanlin Song, Jay Thiagarajah, A S Verkman

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of general physiology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 68 citations in OpenAlex.

  1. Second-generation lysocins as therapeutics for treatingAntimicrobial agents and chemotherapy · 2025
    Article
  2. Article
  3. Chronic hyperglycemia aggravates lung function in aAmerican journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  4. Chloride ions in health and disease.Bioscience reports · 2024
    Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Gastric Aspiration and Its Role in Airway Inflammation.The open respiratory medicine journal · 2018
    Review
  20. Epithelial transport inThe Journal of general physiology · 2017
    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

3 authors at 1 institution in 1 country.

Yuanlin Song1246 Health Sciences East Tower, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94143-0521, USA. verkman@itsa.ucsf.edu
Jay Thiagarajah
A S Verkman
University of California, San Francisco · US

Funding

Functional Role of Aquaporins in Eye PhysiologyR01EY013574 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 2002 to 2022
$7.6M
MECHANISMS OF WATER TRANSPORT IN RENAL EPITHELIAR37DK035124 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 1999 to 2008
$4.2M
Application of Novel Optical Methods to Cell DynamicsR37EB000415 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 2007 to 2016
$4.1M
Role of ASL and Airway Glands in CF Lung DiseaseR01HL073856 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 2003 to 2010
$3.1M
PHYSIOLOGY AND MOLECULAR BIOLOGY OF LUNG WATER TRANSPORTR01HL059198 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 1998 to 2007
$2.2M
Application of Novel Optical Methods to Cell DynamicsR01EB000415 · NIBIB · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 2002 to 2006
$1.7M
WATER AND NON-ELECTROLYTE TRANSPORT IN RENAL VESICLESR01DK035124 · NIDDK · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI VERKMAN, ALAN S · 1986 to 2014
$1.4M
NEI NIH HHS EY13574NEI NIH HHS R01 EY013574NHLBI NIH HHS HL59198NHLBI NIH HHS HL73856NHLBI NIH HHS R01 HL059198NHLBI NIH HHS R01 HL073856NIBIB NIH HHS EB00415NIBIB NIH HHS R01 EB000415NIBIB NIH HHS R37 EB000415NIDDK NIH HHS DK35124NIDDK NIH HHS R01 DK035124NIDDK NIH HHS R37 DK035124
6 · The paper itself

Abstract

The composition and depth of the airway surface liquid (ASL) are key parameters in airway physiology that are thought to be important in the pathophysiology of cystic fibrosis and other diseases of the airways. We reported novel fluorescent indicator and microscopy methods to measure [Na+], [Cl-], pH, and depth of the ASL in large airways (Jayaraman, S., Y. Song, L. Vetrivel, L. Shankar, and A.S. Verkman. 2001. J. Clin. Invest. 107:317-324.). Here we report a stripped-lung preparation to measure ASL composition and depth in small distal airways. Distal ASL was stained with ion- or pH-sensitive fluorescent indicators by infusion into mouse trachea of a perfluorocarbon suspension of the indicator. After stripping the pleura and limited microdissection of the lung parenchyma, airways were exposed for measurement of ASL [Na+], [Cl-], and pH by ratio imaging microscopy, and depth by confocal microscopy. The stripped-lung preparation was validated in stability and tissue viability studies. ASL [Na+] was 122 +/- 2 mM, [Cl-] was 123 +/- 4 mM and pH was 7.28 +/- 0.07, and not dependent on airway size (<100- to >250-mum diameter), ENaC inhibition by amiloride, or CFTR inhibition by the thiazolidinone CFTRinh-172. ASL depth was 8-35 mum depending on airway size, substantially less than that in mouse trachea of approximately 55 mum, and not altered significantly by amiloride. These results establish a novel lung preparation and fluorescence approach to study distal airway physiology and provide the first data on the composition and depth of distal ASL.

Indexed as

AnimalsChloridesFluorescent DyesHydrogen-Ion ConcentrationLungMiceRespiratory MucosaSodiumChloridesFluorescent DyesSodium

Identifiers

PMID14557401
PMCPMC2229580
OpenAlexW2071139762

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.