Evidence map›Paper›PMID 32286341›Full record

ArticleScientific reports2020

Syncytiotrophoblast extracellular microvesicle profiles in maternal circulation for noninvasive diagnosis of preeclampsia.

Lisa Levine, Andreas Habertheuer, Chirag Ram, Laxminarayana Korutla, Nadav Schwartz, Robert W Hu, Sanjana Reddy, Andrew Freas, Patrick D Zielinski, Joey Harmon and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Circulating Plasma Syncytin-1 mRNA in Preeclampsia-A Pilot Study.International journal of molecular sciences · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Extracellular Vesicles as Biomarkers of Pregnancy Complications.International journal of molecular sciences · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
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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

13 authors at 2 institutions in 1 country.

Lisa Levine *Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Pennsylvania, Pennsylvania, USA.
Andreas Habertheuer *Division of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Chirag RamDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Laxminarayana KorutlaDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Nadav SchwartzDivision of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Pennsylvania, Pennsylvania, USA.
Robert W HuDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Sanjana ReddyDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Andrew FreasDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Patrick D ZielinskiDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Joey HarmonDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA.
Sudheer Kumar MoluguDepartment of Biochemistry and Biophysics, University of Pennsylvania, Pennsylvania, USA.
Samuel ParryDivision of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Pennsylvania, Pennsylvania, USA.
Prashanth VallabhajosyulaDivision of Cardiovascular Surgery, Department of Surgery, University of Pennsylvania, Pennsylvania, USA. Prashanth.Vallabhajosyula@yale.edu.
University of Pennsylvania · USYale University · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Cardiovascular Risk after Preeclampsia - The CRISP studyR56HL136730 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI LEVINE, LISA DANIELLE · 2018 to 2018
$740k
NCATS NIH HHS UL1 TR001863
6 · The paper itself

Abstract

Preeclampsia is the most common placental pathology in pregnant females, with increased morbidity and mortality incurred on the mother and the fetus. There is a need for improved biomarkers for diagnosis and monitoring of this condition. Placental syncytiotrophoblasts at the maternal-fetal interface release nanoparticles, including extracellular microvesicles, into the maternal blood during pregnancy. Syncytiotrophoblast extracellular microvesicles (STEVs) are being studied for their diagnostic potential and for their potential physiologic role in preeclampsia. We hypothesized that STEV profiles in maternal circulation would be altered under conditions of preeclampsia compared to normal pregnancy. Extracellular vesicles (EVs) released by BeWo cells in vitro showed high expression of syncytin-1, but no plac1 expression, demonstrating that trophoblast cell EVs express syncytin-1 on their surface. Placental alkaline phosphatase also showed high expression on BeWo EVs, but due to concern for cross reactivity to highly prevalent isoforms of intestinal and bone alkaline phosphatase, we utilized syncytin-1 as a marker for STEVs. In vivo, syncytin-1 protein expression was confirmed in maternal plasma EVs from Control and Preeclampsia subjects by Western blot, and overall, lower expression was noted in samples from patients with preeclampsia (n = 8). By nanoparticle analysis, EV profiles from Control and Preeclampsia groups showed similar total plasma EV quantities (p = 0.313) and size distribution (p = 0.415), but STEV quantitative signal, marked by syncytin-1 specific EVs, was significantly decreased in the Preeclampsia group (p = 2.8 × 10

Indexed as

AdultBiomarkersBlood CirculationCase-Control StudiesCell-Derived MicroparticlesCell LineExosomesFemaleGene Products, envHumansOrgan SpecificityPlacentaPre-EclampsiaPregnancyPregnancy ProteinsTrophoblastsBiomarkersGene Products, envPregnancy Proteinssyncytin

Identifiers

PMID32286341
PMCPMC7156695
OpenAlexW3015695450

What OpenQuestion holds

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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.