Evidence map›Paper›PMID 26551971›Full record

ArticlePloS one2015

Syncytiotrophoblast Extracellular Vesicles from Pre-Eclampsia Placentas Differentially Affect Platelet Function.

Dionne S Tannetta, Kathryn Hunt, Chris I Jones, Naomi Davidson, Carmen H Coxon, David Ferguson, Christopher W Redman, Jonathan M Gibbins, Ian L Sargent, Katherine L Tucker

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Extracellular vesicles in preeclampsia: drivers of vascular dysfunction and inflammation.American journal of physiology. Heart and circulatory physiology · 2025
    Review
  4. Observational
  5. Therapeutic potential of extracellular vesicles for treating human pregnancy disorders.Extracellular vesicles and circulating nucleic acids · 2025
    Review
  6. Observational
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Extracellular vesicles in reproduction and pregnancy.Extracellular vesicles and circulating nucleic acids · 2022
    Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. 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

10 authors at 4 institutions in 1 country.

Dionne S TannettaNuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Kathryn HuntNuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Chris I JonesInstitute for Cardiovascular and Metabolic Research, School of Biological Sciences, University of Reading, Reading, Berkshire, United Kingdom.
Naomi DavidsonNuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Carmen H CoxonSchool of Physiology and Pharmacology, University of Bristol, Medical Sciences Building, University Walk, Bristol, United Kingdom.
David FergusonNuffield Department of Clinical Laboratory Science, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom.
Christopher W RedmanNuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Jonathan M GibbinsInstitute for Cardiovascular and Metabolic Research, School of Biological Sciences, University of Reading, Reading, Berkshire, United Kingdom.
Ian L SargentNuffield Department of Obstetrics and Gynaecology, University of Oxford, Level 3, Women's Centre, John Radcliffe Hospital, Oxford, United Kingdom.
Katherine L TuckerNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom.
University of Oxford · GBJohn Radcliffe Hospital · GBUniversity of Reading · GBUniversity of Bristol · GB

Funding

British Heart Foundation RG/09/011/28094British Heart Foundation RG/15/2/31224Medical Research Council MR/J003360/1
6 · The paper itself

Abstract

Pre-eclampsia (PE) complicates around 3% of all pregnancies and is one of the most common causes of maternal mortality worldwide. The pathophysiology of PE remains unclear however its underlying cause originates from the placenta and manifests as raised blood pressure, proteinuria, vascular or systemic inflammation and hypercoagulation in the mother. Women who develop PE are also at significantly higher risk of subsequently developing cardiovascular (CV) disease. In PE, the failing endoplasmic reticulum, oxidative and inflammatory stressed syncytiotrophoblast layer of the placenta sheds increased numbers of syncytiotrophoblast extracellular vesicles (STBEV) into the maternal circulation. Platelet reactivity, size and concentration are also known to be altered in some women who develop PE, although the underlying reasons for this have not been determined. In this study we show that STBEV from disease free placenta isolated ex vivo by dual placental perfusion associate rapidly with platelets. We provide evidence that STBEV isolated from normal placentas cause platelet activation and that this is increased with STBEV from PE pregnancies. Furthermore, treatment of platelets with aspirin, currently prescribed for women at high risk of PE to reduce platelet aggregation, also inhibits STBEV-induced reversible aggregation of washed platelets. Increased platelet reactivity as a result of exposure to PE placenta derived STBEVs correlates with increased thrombotic risk associated with PE. These observations establish a possible direct link between the clotting disturbances of PE and dysfunction of the placenta, as well as the known increased risk of thromboembolism associated with this condition.

Indexed as

AdultAspirinBlood PlateletsCase-Control StudiesExtracellular VesiclesFemaleHumansMicroscopy, Electron, TransmissionPlacentaPlatelet ActivationPlatelet AggregationPre-EclampsiaPregnancyThrombosisTrophoblastsAspirin

Identifiers

PMID26551971
PMCPMC4638362
OpenAlexW2113032366

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.