Evidence map›Paper›PMID 10580502›Full record

ArticleNature1999

Activation of the epithelial Na+ channel (ENaC) requires CFTR Cl- channel function.

M M Reddy, M J Light, P M Quinton

Abstract read
PubMed Publisher
In one paragraph

Article in Nature, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
14.7field-weighted citation impact, top 1% 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

75 citing papers in PubMed, 246 citations in OpenAlex.

  1. Protein interactions, calcium, phosphorylation, and cholesterol modulate CFTR cluster formation on membranes.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Toward in vivo bronchoscopic functional CFTR assessment using a short circuit current measurement probe.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  3. A mathematical model of ENaC and Slc26a6 regulation by CFTR in salivary gland ducts.American journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
  4. Article
  5. Skin-specific mechanisms of body fluid regulation in hypertension.Clinical science (London, England : 1979) · 2023
    Article
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  12. DNA Methylation Patterns Correlate with the Expression ofInternational journal of molecular sciences · 2021
    Article
  13. Article
  14. The Role of MicroRNA in the Airway Surface Liquid Homeostasis.International journal of molecular sciences · 2020
    Review
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15 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

3 authors at 1 institution in 1 country.

M M ReddyDepartment of Pediatrics, University of California, San Diego, School of Medicine, La Jolla 92093-0831, USA.
M J Light
P M Quinton
University of California, San Diego · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is increasingly being recognized that cells coordinate the activity of separate ion channels that allow electrolytes into the cell. However, a perplexing problem in channel regulation has arisen in the fatal genetic disease cystic fibrosis, which results from the loss of a specific Cl- channel (the CFTR channel) in epithelial cell membranes. Although this defect clearly inhibits the absorption of Na+ in sweat glands, it is widely accepted that Na+ absorption is abnormally elevated in defective airways in cystic fibrosis. The only frequently cited explanation for this hypertransport is that the activity of an epithelial Na+ channel (ENaC) is inversely related to the activity of the CFTR Cl- channel. However, we report here that, in freshly isolated normal sweat ducts, ENaC activity is dependent on, and increases with, CFTR activity. Surprisingly, we also find that the primary defect in Cl- permeability in cystic fibrosis is accompanied secondarily by a Na+ conductance in this tissue that cannot be activated. Thus, reduced salt absorption in cystic fibrosis is due not only to poor Cl- conductance but also to poor Na+ conductance.

Indexed as

Adenosine TriphosphateCell Membrane PermeabilityCyclic AMPCyclic AMP-Dependent Protein KinasesCystic Fibrosis Transmembrane Conductance RegulatorEpithelial Sodium ChannelsEpitheliumHumansIn Vitro TechniquesPhosphorylationSodium ChannelsSodium ChlorideSweat GlandsAdenosine TriphosphateCFTR protein, humanCyclic AMPCyclic AMP-Dependent Protein KinasesCystic Fibrosis Transmembrane Conductance RegulatorEpithelial Sodium ChannelsSodium ChannelsSodium Chloride

Identifiers

PMID10580502
OpenAlexW2101496432

What OpenQuestion holds

Textmetadata
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.