Evidence map›Paper›PMID 11815669›Full record

ArticleThe Journal of general physiology2002

Novel role for CFTR in fluid absorption from the distal airspaces of the lung.

X Fang, N Fukuda, P Barbry, C Sartori, A S Verkman, M A Matthay

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of general physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

85 citing papers in PubMed, 1 synthesis or guideline pooled it, 195 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Acquired cystic fibrosis transmembrane conductance regulator dysfunction.Pflugers Archiv : European journal of physiology · 2025
    Review
  7. Article
  8. Mechanisms of impaired alveolar fluid clearance.Anatomical record (Hoboken, N.J. : 2007) · 2025
    Review
  9. CFTR as a therapeutic target for severe lung infection.American journal of physiology. Lung cellular and molecular physiology · 2025
    Review
  10. Article
  11. Impact of e-cigarette aerosol on primary human alveolar epithelial type 2 cells.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  12. Article
  13. Review
  14. Review
  15. Where Is the Cystic Fibrosis Transmembrane Conductance Regulator?American journal of respiratory and critical care medicine · 2021
    Article
  16. Review
  17. Review
  18. Article
  19. Pathogenesis of Acute Respiratory Distress Syndrome.Seminars in respiratory and critical care medicine · 2019
    Review
  20. Article

25 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

X FangCardiovascular Research Institute, Department of Medicine, University of California, San Francisco, CA 94143, USA.
N Fukuda
P Barbry
C Sartori
A S Verkman
M A Matthay
University of California, San Francisco · US

Funding

MECHANISMS OF ALVEOLAR EPITHELIAL FLUID CLEARANCER01HL051854 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MATTHAY, MICHAEL A. · 1994 to 2012
$4.4M
Resolution of Clinical Lung InjuryR37HL051856 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MATTHAY, MICHAEL A. · 2006 to 2015
$3.9M
SEROUS CELL MALFUNCTION AND CYSTIC FIBROSIS LUNG DISEASEP50HL060288 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI FINKBEINER, WALTER E · 1998 to 2002
$2.8M
RESOLUTION OF CLINICAL LUNG INJURYR01HL051856 · NHLBI · UNIVERSITY OF CALIFORNIA SAN FRANCISCO · PI MATTHAY, MICHAEL A. · 1996 to 2005
$1.7M
NHLBI NIH HHS HL51854NHLBI NIH HHS HL51856NHLBI NIH HHS HL60288NHLBI NIH HHS R01 HL051854NHLBI NIH HHS R01 HL051856NHLBI NIH HHS R37 HL051856
6 · The paper itself

Abstract

The active absorption of fluid from the airspaces of the lung is important for the resolution of clinical pulmonary edema. Although ENaC channels provide a major route for Na(+) absorption, the route of Cl(-) transport has been unclear. We applied a series of complementary approaches to define the role of Cl(-) transport in fluid clearance in the distal airspaces of the intact mouse lung, using wild-type and cystic fibrosis Delta F508 mice. Initial studies in wild-type mice showed marked inhibition of fluid clearance by Cl(-) channel inhibitors and Cl(-) ion substitution, providing evidence for a transcellular route for Cl(-) transport. In response to cAMP stimulation by isoproterenol, clearance was inhibited by the CFTR inhibitor glibenclamide in both wild-type mice and the normal human lung. Although isoproterenol markedly increased fluid absorption in wild-type mice, there was no effect in Delta F508 mice. Radioisotopic clearance studies done at 23 degrees C (to block active fluid absorption) showed approximately 20% clearance of (22)Na in 30 min both without and with isoproterenol. However, the clearance of (36)Cl was increased by 47% by isoproterenol in wild-type mice but was not changed in Delta F508 mice, providing independent evidence for involvement of CFTR in cAMP-stimulated Cl(-) transport. Further, CFTR played a major role in fluid clearance in a mouse model of acute volume-overload pulmonary edema. After infusion of saline (40% body weight), the lung wet-to-dry weight ratio increased by 28% in wild-type versus 64% in Delta F508 mice. These results provide direct evidence for a functionally important role for CFTR in the distal airspaces of the lung.

Indexed as

AbsorptionAnimalsBronchodilator AgentsChloride ChannelsCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorHumansIn Vitro TechniquesIsotonic SolutionsLungMiceMice, Inbred C3HMice, Inbred C57BLMice, TransgenicPulmonary EdemaSodium ChlorideBronchodilator AgentsCFTR protein, humanChloride ChannelsCystic Fibrosis Transmembrane Conductance Regulatorcystic fibrosis transmembrane conductance regulator delta F508Isotonic SolutionsSodium Chloride

Identifiers

PMID11815669
PMCPMC2233804
OpenAlexW2153331362

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.