Evidence map›Paper›PMID 36619545›Full record

ArticleFrontiers in endocrinology2022

Reduced expression in preterm birth of sFLT-1 and PlGF with a high sFLT-1/PlGF ratio in extracellular vesicles suggests a potential biomarker.

Sama Hussein, Weina Ju, Stephanie Pizzella, Michael Flory, Chu Chu, Yong Wang, Nanbert Zhong

Open access · goldAbstract read
In one paragraph

Article in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

5 citing papers in PubMed, 5 citations in OpenAlex.

  1. Review
  2. Crosstalk of extracellular vesicles in maternal-fetal interaction.Frontiers in cell and developmental biology · 2026
    Review
  3. Article
  4. Review
  5. 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

7 authors at 2 institutions in 1 country.

Sama HusseinNew York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, United States.
Weina JuNew York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, United States.
Stephanie PizzellaDepartment of Obstetrics and Gynecology, School of Medicine, Washington University, St. Louis, MO, United States.
Michael FloryNew York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, United States.
Chu ChuNew York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, United States.
Yong WangDepartment of Obstetrics and Gynecology, School of Medicine, Washington University, St. Louis, MO, United States.
Nanbert ZhongNew York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, United States.
New York State Office for People With Developmental Disabilities · USWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preterm birth may have a pathological impact on intrauterine development of the fetal brain, resulting in developmental disabilities. In this study, we examine the expression of soluble Fms-like tyrosine kinase 1 (sFLT-1) and placental growth factor (PlGF), which is one of the vascular endothelial growth factors (VEGFs), as these play a key role in angiogenesis; in particular, we examine their effect on the sFLT-1/PlGF ratio in cases of preterm birth as compared to typical pregnancies. Enzyme-linked immunosorbent assay was performed on samples of maternal-derived plasma and extracellular vesicles-exosomes (EVs-EXs) isolated at the third trimester, consisting of 17 samples from cases of preterm birth and 38 control cases. Our results showed that both sFLT-1 (P=0.0014) and PlGF (P=0.0032) were significantly downregulated in cases of preterm birth compared to controls, while the sFLT-1/PIGF ratio was significantly (P=0.0008) increased in EVs-EXs, but not in maternal plasma. Our results suggest that this reduced expression of sFLT-1 and PlGF with an elevated sFLT-1/PlGF ratio in EVs-EXs may represent a potential biomarker for prediction of PTB.

Indexed as

ExosomesPre-EclampsiaPremature BirthBiomarkersFemaleHumansInfant, NewbornPlacenta Growth FactorPregnancyReceptor Protein-Tyrosine KinasesVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-1BiomarkersPlacenta Growth FactorReceptor Protein-Tyrosine KinasesVascular Endothelial Growth Factor AVascular Endothelial Growth Factor Receptor-1biomarkerexosomes (EX)extracellular vehicles (EVs)placental growth factorpreterm (birth)PTBsFlt-1

Identifiers

PMID36619545
PMCPMC9814499
OpenAlexW4312076030

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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.