Evidence map›Paper›PMID 24223202›Full record

ArticlePloS one2013

Endothelium-dependent relaxation and angiotensin II sensitivity in experimental preeclampsia.

Anne Marijn van der Graaf, Marjon J Wiegman, Torsten Plösch, Gerda G Zeeman, Azuwerus van Buiten, Robert H Henning, Hendrik Buikema, Marijke M Faas

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 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

8 authors at 2 institutions in 1 country.

Anne Marijn van der GraafDepartment of Obstetrics and Gynecology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands ; Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands.
Marjon J Wiegman
Torsten Plösch
Gerda G Zeeman
Azuwerus van Buiten
Robert H Henning
Hendrik Buikema
Marijke M Faas
University Medical Center Groningen · NLUniversity of Groningen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe investigated endothelial dysfunction and the role of angiotensin (Ang)-II type I (AT1-R) and type II (AT2-R) receptor in the changes in the Ang-II sensitivity in experimental preeclampsia in the rat.

methodsAortic rings were isolated from low dose lipopolysaccharide (LPS) infused pregnant rats (experimental preeclampsia; n=9), saline-infused pregnant rats (n=8), and saline (n=8) and LPS (n=8) infused non-pregnant rats. Endothelium-dependent acetylcholine-mediated relaxation was studied in phenylephrine-preconstricted aortic rings in the presence of vehicle, N(G)-nitro-L-arginine methyl ester and/or indomethacin. To evaluate the role for AT1-R and AT2-R in Ang-II sensitivity, full concentration response curves were obtained for Ang-II in the presence of losartan or PD123319. mRNA expression of the AT1-R and AT2-R, eNOS and iNOS, COX1 and COX2 in aorta were evaluated using real-time RT-PCR.

resultsThe role of vasodilator prostaglandins in the aorta was increased and the role of endothelium-derived hyperpolarizing factor and response of the AT1-R and AT2-R to Ang-II was decreased in pregnant saline infused rats as compared with non-pregnant rats. These changes were not observed during preeclampsia.

conclusionPregnancy induced adaptations in endothelial function, which were not observed in the rat model for preeclampsia. This role of lack of pregnancy induced endothelial adaptation in the pathophysiology of experimental preeclampsia needs further investigation.

Indexed as

Angiotensin IIAngiotensin II Type 1 Receptor BlockersAnimalsAortaCyclooxygenase 1Cyclooxygenase 2Disease Models, AnimalEndothelial CellsFemaleImidazolesLipopolysaccharidesLosartanNitric Oxide Synthase Type IIPre-EclampsiaPregnancyProstaglandinsAngiotensin IIAngiotensin II Type 1 Receptor BlockersCyclooxygenase 1Cyclooxygenase 2ImidazolesLipopolysaccharidesLosartanNitric Oxide Synthase Type IIPD 123319ProstaglandinsPyridinesReceptor, Angiotensin, Type 1Receptor, Angiotensin, Type 2Vasodilator Agents

Identifiers

PMID24223202
PMCPMC3819278
OpenAlexW2114387381

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.