Evidence map›Paper›PMID 11733566›Full record

ArticleThe Journal of clinical investigation2001

Chloride conductance and genetic background modulate the cystic fibrosis phenotype of Delta F508 homozygous twins and siblings.

I Bronsveld, F Mekus, J Bijman, M Ballmann, H R de Jonge, U Laabs, D J Halley, H Ellemunter, G Mastella, S Thomas and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
9.5field-weighted citation impact, top 2% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 146 citations in OpenAlex.

  1. Pooled it
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  17. Ivacaftor treatment in patients with cystic fibrosis and the G551D-CFTR mutation.European respiratory review : an official journal of the European Respiratory Society · 2013
    Review
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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

12 authors at 7 institutions in 6 countries.

I BronsveldDepartment of Pediatrics, Sophia Children's Hospital, Rotterdam, The Netherlands. bronsvel@worldonline.nl
F Mekus
J Bijman
M Ballmann
H R de Jonge
U Laabs
D J Halley
H Ellemunter
G Mastella
S Thomas
H J Veeze
B Tümmler
Medizinische Hochschule Hannover · DEPediatrics and Genetics · USCystic Fibrosis Research Foundation · ITErasmus MC - Sophia Children’s Hospital · NLErasmus University Rotterdam · NLRoyal Brompton Hospital · GBUniversität Innsbruck · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the impact of chloride (Cl(-)) permeability, mediated by residual activity of the cystic fibrosis transmembrane conductance regulator (CFTR) or by other Cl(-) channels, on the manifestations of cystic fibrosis (CF), we determined Cl(-) transport properties of the respiratory and intestinal tracts in Delta F508 homozygous twins and siblings. In the majority of patients, cAMP and/or Ca(2+)-regulated Cl(-) conductance was detected in the airways and intestine. Our finding of cAMP-mediated Cl(-) conductance suggests that, in vivo, at least some Delta F508 CFTR can reach the plasma membrane and affect Cl(-) permeability. In respiratory tissue, the expression of basal CFTR-mediated Cl(-) conductance, demonstrated by 30% of Delta F508 homozygotes, was identified as a positive predictor of milder CF disease. In intestinal tissue, 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid-insensitive (DIDS-insensitive) Cl(-) secretion, which is indicative of functional CFTR channels, correlated with a milder phenotype, whereas DIDS-sensitive Cl(-) secretion was observed mainly in more severely affected patients. The more concordant Cl(-) secretory patterns within monozygous twins compared with dizygous pairs imply that genes other than CFTR significantly influence the manifestation of the basic defect.

Indexed as

Diseases in TwinsAdolescentAdultChildChloridesCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorFemaleHomozygoteHumansMalePhenotypeCFTR protein, humanChloridesCystic Fibrosis Transmembrane Conductance Regulator

Identifiers

PMID11733566
PMCPMC200980
OpenAlexW2122530389

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.