Evidence map›Paper›PMID 9835624›Full record

ArticleThe Journal of clinical investigation1998

Cl- absorption across the thick ascending limb is not altered in cystic fibrosis mice. A role for a pseudo-CFTR Cl- channel.

P Marvão, M C De Jesus Ferreira, C Bailly, M Paulais, M Bens, R Guinamard, R Moreau, A Vandewalle, J Teulon

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of clinical investigation, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

11 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Emerging Targets of Diuretic Therapy.Clinical pharmacology and therapeutics · 2017
    Review
  3. The ClC-K2 Chloride Channel Is Critical for Salt Handling in the Distal Nephron.Journal of the American Society of Nephrology : JASN · 2017
    Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
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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

9 authors at 2 institutions in 1 country.

P MarvãoINSERM CJF 95-07, Institut Fédératif de Recherche 02, Faculté de Médecine Xavier Bichat, Paris, France.
M C De Jesus Ferreira
C Bailly
M Paulais
M Bens
R Guinamard
R Moreau
A Vandewalle
J Teulon
Inserm · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cortical thick ascending limb (CTAL) absorbs Cl- via a Na+-K+-Cl- cotransport at the apical membrane and several Cl- channels at the basolateral membrane, including a 9-pS channel having several properties of the cystic fibrosis transmembrane conductance regulator (CFTR). Having checked that CFTR mRNA is present in the mouse CTAL, we investigated whether this channel is a CFTR molecule by applying the patch-clamp technique to CTALs microdissected from CFTR knockout mice (cftrm1Unc). The 9-pS channel was active in cell-attached patches from tubules of mice homozygous for the disrupted cftr gene [CFTR (-/-)] at the same frequency and with the same activity (NPo) as in normal [CFTR (+/+)] or heterozygous [CFTR (+/-)] mice. The conductive properties of the channel, studied on inside-out patches, were identical in CFTR (-/-), CFTR (+/+), and CFTR (+/-) tubules, as were the sensitivities to internal pH and internal ATP, two typical features of this channel. In addition, the Cl- absorption in isolated, microperfused CTALs and the Na+-K+-Cl- cotransport activity were identical in CFTR (-/-), CFTR (+/+), and CFTR (+/-) mice. These results show that the 9-pS Cl- channel is distinct from CFTR, and that the CFTR protein has no influence on the Cl- absorption in this part of the renal tubule.

Indexed as

Adenosine TriphosphateAnimalsArginine VasopressinCarrier ProteinsChloridesCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorDiphosphatesDisease Models, AnimalHydrogen-Ion ConcentrationIon TransportKidneyLoop of HenleMiceMice, KnockoutPatch-Clamp TechniquesAdenosine TriphosphateArginine VasopressinCarrier ProteinsChloridesCystic Fibrosis Transmembrane Conductance RegulatorDiphosphatesRNA, MessengerSodium-Potassium-Chloride Symporters

Identifiers

PMID9835624
PMCPMC509151
OpenAlexW1966209655

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.