Evidence map›Paper›PMID 24708917›Full record

Trial reportThe British journal of nutrition2014

Effect of selenium on markers of risk of pre-eclampsia in UK pregnant women: a randomised, controlled pilot trial.

Margaret P Rayman, Elizabeth Searle, Lynne Kelly, Sigurd Johnsen, Katherine Bodman-Smith, Sarah C Bath, Jinyuan Mao, Christopher W G Redman

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in The British journal of nutrition, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

56 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Relation between Selenium and Female Fertility: A Systematic Review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2022
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. Trial
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Oxidative Stress in Pregnancy.Biomolecules · 2023
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Antioxidants in Pregnancy: Do We Really Need More Trials?Antioxidants (Basel, Switzerland) · 2022
    Review
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.

Margaret P RaymanDepartment of Nutritional Sciences,School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey,GuildfordGU2 7XH,UK.
Elizabeth SearleNuffield Department of Obstetrics and Gynaecology, University of Oxford,OxfordOX3 9DU,UK.
Lynne KellyAnu Research Centre, Department of Obstetrics and Gynaecology, Cork University Maternity Hospital,Wilton, Cork,Republic of Ireland.
Sigurd JohnsenSurrey Clinical Research Centre (CRC), Faculty of Health and Medical Sciences, University of Surrey,GuildfordGU2 7XP,UK.
Katherine Bodman-SmithDepartment of Nutritional Sciences,School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey,GuildfordGU2 7XH,UK.
Sarah C BathDepartment of Nutritional Sciences,School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey,GuildfordGU2 7XH,UK.
Jinyuan MaoDepartment of Nutritional Sciences,School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey,GuildfordGU2 7XH,UK.
Christopher W G RedmanNuffield Department of Obstetrics and Gynaecology, University of Oxford,OxfordOX3 9DU,UK.

Funding

Nutritional and Metabolic Significance of SeleniumR37ES002497 · NIEHS · VANDERBILT UNIVERSITY · PI BURK, RAYMOND F. · 2004 to 2013
$4.7M
NUTRITIONAL &METABOLIC SIGNIFICANCE OF SELENIUMR01ES002497 · NIEHS · VANDERBILT UNIVERSITY · PI BURK, RAYMOND F. · 1985 to 2003
$1.3M
Medical Research Council MR/K02132X/1NIEHS NIH HHS ES02497NIEHS NIH HHS R01 ES002497NIEHS NIH HHS R37 ES002497Wellcome TrustWellcome Trust 083918/Z/07/Z
6 · The paper itself

Abstract

Pre-eclampsia is a serious hypertensive condition of pregnancy associated with high maternal and fetal morbidity and mortality. Se intake or status has been linked to the occurrence of pre-eclampsia by our own work and that of others. We hypothesised that a small increase in the Se intake of UK pregnant women of inadequate Se status would protect against the risk of pre-eclampsia, as assessed by biomarkers of pre-eclampsia. In a double-blind, placebo-controlled, pilot trial, we randomised 230 primiparous pregnant women to Se (60 μg/d, as Se-enriched yeast) or placebo treatment from 12 to 14 weeks of gestation until delivery. Whole-blood Se concentration was measured at baseline and 35 weeks, and plasma selenoprotein P (SEPP1) concentration at 35 weeks. The primary outcome measure of the present study was serum soluble vascular endothelial growth factor receptor-1 (sFlt-1), an anti-angiogenic factor linked with the risk of pre-eclampsia. Other serum/plasma components related to the risk of pre-eclampsia were also measured. Between 12 and 35 weeks, whole-blood Se concentration increased significantly in the Se-treated group but decreased significantly in the placebo group. At 35 weeks, significantly higher concentrations of whole-blood Se and plasma SEPP1 were observed in the Se-treated group than in the placebo group. In line with our hypothesis, the concentration of sFlt-1 was significantly lower at 35 weeks in the Se-treated group than in the placebo group in participants in the lowest quartile of Se status at baseline (P= 0·039). None of the secondary outcome measures was significantly affected by treatment. The present finding that Se supplementation has the potential to reduce the risk of pre-eclampsia in pregnant women of low Se status needs to be validated in an adequately powered trial.

Indexed as

Dietary SupplementsAdultBiomarkersDouble-Blind MethodFemaleHumansIncidenceNailsNutritional StatusPilot ProjectsPre-EclampsiaPregnancyPregnancy Trimester, FirstRiskSeleniumSelenoprotein PBiomarkersFLT1 protein, humanSeleniumSelenoprotein PVascular Endothelial Growth Factor Receptor-1

Identifiers

PMID24708917
PMCPMC4054662

What OpenQuestion holds

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LicenceCC BY
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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.