Evidence map›Paper›PMID 32631423›Full record

SynthesisBiology of sex differences2020

Systematic review supports the role of DNA methylation in the pathophysiology of preeclampsia: a call for analytical and methodological standardization.

A Cirkovic, V Garovic, J Milin Lazovic, O Milicevic, M Savic, N Rajovic, N Aleksic, T Weissgerber, A Stefanovic, D Stanisavljevic and 1 more

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Biology of sex differences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.1field-weighted citation impact, top 9% 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

32 citing papers in PubMed, 48 citations in OpenAlex.

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  10. Therapeutic nanoparticle safety in pregnancy: Bridging knowledge gaps with environmental insights and a translational roadmap.Journal of controlled release : official journal of the Controlled Release Society · 2025
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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

11 authors at 3 institutions in 4 countries.

A CirkovicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
V GarovicDepartment of Internal Medicine, Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.
J Milin LazovicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
O MilicevicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
M SavicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
N RajovicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
N AleksicCenter for Molecular Biology, University of Vienna, Vienna, Austria.
T WeissgerberDepartment of Internal Medicine, Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA.
A StefanovicClinic for Gynecology and Obstetrics, Clinical Centre of Serbia, Belgrade, Serbia.
D StanisavljevicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
N MilicInstitute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia. milic.natasa@mayo.edu.ORCID 0000-0001-7074-1187
University of Belgrade · RSMayo Clinic · USUniversity of Vienna · AT

Funding

Hypertensive pregnancy disorders and future coronary artery diseaseR01HL136348 · NHLBI · MAYO CLINIC ROCHESTER · PI GAROVIC, VESNA D · 2018 to 2022
$2.6M
NHLBI NIH HHS R01 HL136348NHLBI NIH HHS R01-HL136348
6 · The paper itself

Abstract

backgroundStudies have recently examined the role of epigenetic mechanisms in preeclampsia pathophysiology. One commonly examined epigenetic process is DNA methylation. This heritable epigenetic marker is involved in many important cellular functions. The aim of this study was to establish the association between DNA methylation and preeclampsia and to critically appraise the roles of major study characteristics that can significantly impact the association between DNA methylation and preeclampsia. MAIN BODY: A systematic review was performed by searching PubMed, Web of Science, and EMBASE for original research articles published over time, until May 31, 2019 in English. Eligible studies compared DNA methylation levels in pregnant women with vs. without preeclampsia. Ninety articles were included. Epigenome-wide studies identified hundreds of differentially methylated places/regions in preeclamptic patients. Hypomethylation was the predominant finding in studies analyzing placental tissue (14/19), while hypermethylation was detected in three studies that analyzed maternal white blood cells (3/3). In candidate gene studies, methylation alterations for a number of genes were found to be associated with preeclampsia. A greater number of differentially methylated genes was found when analyzing more severe preeclampsia (70/82), compared to studies analyzing less severe preeclampsia vs. controls (13/27). A high degree of heterogeneity existed among the studies in terms of methodological study characteristics including design (study design, definition of preeclampsia, control group, sample size, confounders), implementation (biological sample, DNA methylation method, purification of DNA extraction, and validation of methylation), analysis (analytical method, batch effect, genotyping, and gene expression), and data presentation (methylation quantification measure, measure of variability, reporting). Based on the results of this review, we provide recommendations for study design and analytical approach for further studies.

conclusionsThe findings from this review support the role of DNA methylation in the pathophysiology of preeclampsia. Establishing field-wide methodological and analytical standards may increase value and reduce waste, allowing researchers to gain additional insights into the role of DNA methylation in the pathophysiology of preeclampsia.

Indexed as

DNA MethylationEpigenesis, GeneticFemaleGenetic Predisposition to DiseaseHumansPre-EclampsiaPregnancyEpigeneticsMeta-researchMethylationPreeclampsia

Identifiers

PMID32631423
PMCPMC7336649
OpenAlexW3040239593

What OpenQuestion holds

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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.