Evidence map›Paper›PMID 24423299›Full record

ArticleThe Journal of clinical endocrinology and metabolism2014

Vascular pool of releasable soluble VEGF receptor-1 (sFLT1) in women with previous preeclampsia and uncomplicated pregnancy.

Tracey L Weissgerber, Augustine Rajakumar, Ashley C Myerski, Lia R Edmunds, Robert W Powers, James M Roberts, Robin E Gandley, Carl A Hubel

Open access · bronzeAbstract readControlled Clinical Trial
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.2field-weighted citation impact, top 21% 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, 21 citations in OpenAlex.

  1. Article
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  8. Article
  9. Methodological differences account for inconsistencies in reported free VEGF concentrations in pregnant rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    Article
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 4 institutions in 1 country.

Tracey L WeissgerberDivision of Nephrology and Hypertension (T.L.W.), Mayo Clinic, Rochester, Minnesota 55905; Beth Israel Deaconess Medical Center (A.R.), Boston, Massachusetts 02215; Magee-Womens Research Institute (A.C.M., L.R.E., R.W.P., J.M.R., R.E.G., C.A.H.), and Department of Obstetrics, Gynecology, and Reproductive Sciences (R.W.P., J.M.R., C.A.H.), University of Pittsburgh, Pittsburgh, Pennsylvania 15213; Department of Environmental and Occupational Health (R.E.G., C.A.H.), and Department of Epidemiology (J.M.R.), Graduate School of Public Health (J.M.R.), University of Pittsburgh, Pittsburgh, Pennsylvania 15261; and Clinical and Translational Science Institute (J.M.R.), University of Pittsburgh, Pittsburgh, Pennsylvania 15260.
Augustine Rajakumar
Ashley C Myerski
Lia R Edmunds
Robert W Powers
James M Roberts
Robin E Gandley
Carl A Hubel
Magee-Womens Research Institute · USUniversity of Pittsburgh · USBeth Israel Deaconess Medical Center · USMayo Clinic · US

Funding

UNIVERSITY OF PITTSBURGH CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTE: BPCAUL1RR024153 · NCRR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2006 to 2011
$73.9M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
TROPHOBLAST PRODUCTS IN GENESIS OF PREECLAMPSIAP01HD030367 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI FISHER, SUSAN J. · 1993 to 2012
$17.2M
Mayo Clinic Interdisciplinary Women's Health Research ProgramK12HD065987 · NICHD · MAYO CLINIC ROCHESTER · PI KANTARCI, KEJAL · 2010 to 2023
$6.7M
CIHRNCATS NIH HHS UL1 TR000005NCATS NIH HHS UL1TR000005NCRR NIH HHS UL1 RR024153NCRR NIH HHS UL1RR024153NICHD NIH HHS K12 HD065987NICHD NIH HHS K12HD065987NICHD NIH HHS P01 HD030367NICHD NIH HHS P01HD030367
6 · The paper itself

Abstract

contextResearch examining the source of excess soluble fms-like tyrosine kinase 1 (sFLT1) in preeclampsia has focused on the placenta. The potential contribution of the releasable store of sFLT1 in the systemic vasculature is unknown.

objectiveWe asked whether the nonplacental releasable store of sFLT1 is larger in women with previous preeclampsia than in women with a previous uncomplicated pregnancy.

designWe administered heparin to nulligravid women and to women with previous preeclampsia or a previous uncomplicated pregnancy. We compared post-heparin sFLT1 concentrations with those observed in uncomplicated pregnancy and preeclampsia.

settingThe study was performed at Magee-Womens Hospital. PATIENTS: Participants included nulligravidas (n = 8), women 6-24 months postpartum (previous uncomplicated pregnancy, n = 16; previous preeclampsia, n = 15), and pregnant women (uncomplicated pregnancy, n = 30; preeclampsia, n = 25).

interventionNonpregnant women received an unfractionated heparin bolus.

main outcome measuresPre- and post-heparin plasma sFLT1, placental growth factor, and vascular endothelial growth factor were measured.

resultsIn nonpregnant women, heparin increased plasma sFLT1 by 250-fold (P < .01), increased placental growth factor by 7-fold (P < .01), and decreased free vascular endothelial growth factor (P < .01). These changes did not differ between nulligravidas, women with previous preeclampsia, and women with a previous uncomplicated pregnancy. Post-heparin sFLT1 in nonpregnant women was higher than sFLT1 in uncomplicated pregnancy, but lower than sFLT1 in preeclampsia. Baseline and post-heparin sFLT1 were positively correlated (r(2) = 0.19; P < .01). Heparin increased the concentration of the 100-kDa sFLT1 isoform. Adding heparin to whole blood or plasma did not increase sFLT1.

conclusionsNonpregnant women have a significant vascular store of releasable sFLT1. The size of this store does not differ between women with previous preeclampsia vs women with previous uncomplicated pregnancy.

Indexed as

ParityAdultFemaleGravidityHeparinHumansPostpartum PeriodPre-EclampsiaPregnancyReproductive HistoryVascular Endothelial Growth Factor Receptor-1Young AdultFLT1 protein, humanHeparinVascular Endothelial Growth Factor Receptor-1

Identifiers

PMID24423299
PMCPMC3942228
OpenAlexW1989582491

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.