Evidence map›Paper›PMID 28125591›Full record

Trial reportPloS one2017

Maternal Pre-Pregnancy Obesity Is Associated with Altered Placental Transcriptome.

Signe Altmäe, Maria Teresa Segura, Francisco J Esteban, Sabine Bartel, Pilar Brandi, Martin Irmler, Johannes Beckers, Hans Demmelmair, Carmen López-Sabater, Berthold Koletzko and 2 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
5.7field-weighted citation impact, top 4% 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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it, 64 citations in OpenAlex.

  1. Pooled it
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  5. Maternal obesity and ancestry distance in influencing birth outcomes.International journal of obesity (2005) · 2025
    Observational
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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

12 authors at 7 institutions in 3 countries.

Signe AltmäeDepartment of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet, Stockholm, Sweden.ORCID http://orcid.org/0000-0002-0708-1865
Maria Teresa SeguraCentre of Excellence for Paediatric Research EURISTIKOS and Department of Paediatrics, School of Medicine, University of Granada, Granada, Spain.
Francisco J EstebanDepartment of Experimental Biology, University of Jaén, Jaén, Spain.
Sabine BartelDivision of Experimental Asthma Research, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Member of the German Center for Lung Research (DZL), Borstel, Germany.
Pilar BrandiCentre of Excellence for Paediatric Research EURISTIKOS and Department of Paediatrics, School of Medicine, University of Granada, Granada, Spain.
Martin IrmlerInstitute of Experimental Genetics, Helmholtz Zentrum Muenchen, Neuherberg, Germany.
Johannes BeckersInstitute of Experimental Genetics, Helmholtz Zentrum Muenchen, Neuherberg, Germany.
Hans DemmelmairLudwig-Maximilians-University of Munich, Dr. Hauner Children's Hospital, University of Munich Medical Centre, Munich, Germany.
Carmen López-SabaterDepartment of Nutrition and Bromatology, School of Pharmacy, University of Barcelona, Spain.
Berthold KoletzkoLudwig-Maximilians-University of Munich, Dr. Hauner Children's Hospital, University of Munich Medical Centre, Munich, Germany.
Susanne Krauss-EtschmannDivision of Experimental Asthma Research, Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Member of the German Center for Lung Research (DZL), Borstel, Germany.
Cristina CampoyCentre of Excellence for Paediatric Research EURISTIKOS and Department of Paediatrics, School of Medicine, University of Granada, Granada, Spain.
Universidad de Granada · ESLudwig-Maximilians-Universität München · DEDeutsches Diabetes-Zentrum e.V. · DEGerman Center for Lung Research · DEHelmholtz Zentrum München · DEUniversidad de Jaén · ESUniversitat de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Maternal obesity has a major impact on pregnancy outcomes. There is growing evidence that maternal obesity has a negative influence on placental development and function, thereby adversely influencing offspring programming and health outcomes. However, the molecular mechanisms underlying these processes are poorly understood. We analysed ten term placenta's whole transcriptomes in obese (n = 5) and normal weight women (n = 5), using the Affymetrix microarray platform. Analyses of expression data were carried out using non-parametric methods. Hierarchical clustering and principal component analysis showed a clear distinction in placental transcriptome between obese and normal weight women. We identified 72 differentially regulated genes, with most being down-regulated in obesity (n = 61). Functional analyses of the targets using DAVID and IPA confirm the dysregulation of previously identified processes and pathways in the placenta from obese women, including inflammation and immune responses, lipid metabolism, cancer pathways, and angiogenesis. In addition, we detected new molecular aspects of obesity-derived effects on the placenta, involving the glucocorticoid receptor signalling pathway and dysregulation of several genes including CCL2, FSTL3, IGFBP1, MMP12, PRG2, PRL, QSOX1, SERPINE2 and TAC3. Our global gene expression profiling approach demonstrates that maternal obesity creates a unique in utero environment that impairs the placental transcriptome.

Indexed as

TranscriptomeAdolescentAdultCase-Control StudiesCluster AnalysisFemaleGene Expression ProfilingGene Regulatory NetworksHumansInflammationLipid MetabolismMicroarray AnalysisNeoplasm ProteinsNeovascularization, PathologicObesityPlacentaNeoplasm ProteinsReceptors, Glucocorticoid

Identifiers

PMID28125591
PMCPMC5268451
OpenAlexW2582494666

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.