Evidence map›Paper›PMID 21029429›Full record

Trial reportBMC nephrology2010

Increased renal sodium absorption by inhibition of prostaglandin synthesis during fasting in healthy man. A possible role of the epithelial sodium channels.

Thomas G Lauridsen, Henrik Vase, Jørn Starklint, Carolina C Graffe, Jesper N Bech, Søren Nielsen, Erling B Pedersen

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC nephrology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00281762 (Urinary Aquaporin 2 Excretion After NSAID in Fasting Healthy Human), which is not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.4field-weighted citation impact, top 20% 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.

NCT00281762 phase4completednot on this map

Urinary Aquaporin 2 Excretion After NSAID in Fasting Healthy Human

TypeinterventionalSponsorRegional Hospital HolstebroEnrolled20ConditionsHealthyArmsNSAID
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 27 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Thomas G LauridsenDepartment of Medical Research, Holstebro Hospital, Denmark. thomasguldager@webspeed.dk
Henrik Vase
Jørn Starklint
Carolina C Graffe
Jesper N Bech
Søren Nielsen
Erling B Pedersen
Aarhus University · DKRegional Hospital Holstebro · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTreatment with prostaglandin inhibitors can reduce renal function and impair renal water and sodium excretion. We tested the hypotheses that a reduction in prostaglandin synthesis by ibuprofen treatment during fasting decreased renal water and sodium excretion by increased absorption of water and sodium via the aquaporin2 water channels and the epithelial sodium channels.

methodsThe effect of ibuprofen, 600 mg thrice daily, was measured during fasting in a randomized, placebo-controlled, double-blinded crossover study of 17 healthy humans. The subjects received a standardized diet on day 1, fasted at day 2, and received an IV infusion of 3% NaCl on day 3. The effect variables were urinary excretions of aquaporin2 (u-AQP2), the beta-fraction of the epithelial sodium channel (u-ENaCbeta), cyclic-AMP (u-cAMP), prostaglandin E2 (u-PGE2). Free water clearance (CH2O), fractional excretion of sodium (FENa), and plasma concentrations of vasopressin, angiotensin II, aldosterone, atrial-, and brain natriuretic peptide.

resultsIbuprofen decreased u-AQP2, u-PGE2, and FENa at all parts of the study. During the same time, ibuprofen significantly increased u-ENaCbeta. Ibuprofen did not change the response in p-AVP, u-c-AMP, urinary output, and free water clearance during any of these periods. Atrial-and brain natriuretic peptide were higher.

conclusionDuring inhibition of prostaglandin synthesis, urinary sodium excretion decreased in parallel with an increase in sodium absorption and increase in u-ENaCbeta. U-AQP2 decreased indicating that water transport via AQP2 fell. The vasopressin-c-AMP-axis did not mediate this effect, but it may be a consequence of the changes in the natriuretic peptide system and/or the angiotensin-aldosterone system

trial registrationClinical Trials Identifier: NCT00281762.

Indexed as

AdolescentAdultAgedAlbuminsAquaporin 2Arginine VasopressinBlood PressureBody WeightCross-Over StudiesCyclic AMPDinoprostoneEpithelial Sodium ChannelsFastingFemaleHumansIbuprofenAlbuminsAquaporin 2Arginine VasopressinCyclic AMPDinoprostoneEpithelial Sodium ChannelsIbuprofenNatriuretic Peptide, BrainProstaglandin AntagonistsProstaglandinsSaline Solution, HypertonicSodium

Identifiers

PMID21029429
PMCPMC2988774
OpenAlexW2150396480

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.