Evidence map›Paper›PMID 25247495›Full record

ArticlePloS one2014

Comprehensive analysis of preeclampsia-associated DNA methylation in the placenta.

Tianjiao Chu, Kimberly Bunce, Patricia Shaw, Varsha Shridhar, Andrew Althouse, Carl Hubel, David Peters

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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

37 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. NAR genomics and bioinformatics · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  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

7 authors.

Tianjiao ChuDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Kimberly BunceMagee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Patricia ShawMagee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Varsha ShridharDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Andrew AlthouseMagee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
Carl HubelDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.
David PetersDepartment of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America; Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America.

Funding

UNIVERSITY OF PITTSBURGH CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTE: BPCAUL1RR024153 · NCRR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2006 to 2011
$73.9M
University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
TROPHOBLAST PRODUCTS IN GENESIS OF PREECLAMPSIAP01HD030367 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI HUBEL, CARL A · 1993 to 2012
$17.2M
Non-Invasive Detection of Fetal Aneuploidy by Next-Generation DNA SequencingR01HD068578 · NICHD · MAGEE-WOMEN'S RES INST AND FOUNDATION · PI PETERS, DAVID GERARD · 2011 to 2015
$2.3M
NCATS NIH HHS UL1 TR000005NCATS NIH HHS UL1TR000005NCRR NIH HHS UL1 RR024153NCRR NIH HHS UL1RR024153NICHD NIH HHS P01 HD030367NICHD NIH HHS R01 HD068578
6 · The paper itself

Abstract

backgroundA small number of recent reports have suggested that altered placental DNA methylation may be associated with early onset preeclampsia. It is important that further studies be undertaken to confirm and develop these findings. We therefore undertook a systematic analysis of DNA methylation patterns in placental tissue from 24 women with preeclampsia and 24 with uncomplicated pregnancy outcome.

methodsWe analyzed the DNA methylation status of approximately 27,000 CpG sites in placental tissues in a massively parallel fashion using an oligonucleotide microarray. Follow up analysis of DNA methylation at specific CpG loci was performed using the Epityper MassArray approach and high-throughput bisulfite sequencing.

resultsPreeclampsia-specific DNA methylation changes were identified in placental tissue samples irrespective of gestational age of delivery. In addition, we identified a group of CpG sites within specific gene sequences that were only altered in early onset-preeclampsia (EOPET) although these DNA methylation changes did not correlate with altered mRNA transcription. We found evidence that fetal gender influences DNA methylation at autosomal loci but could find no clear association between DNA methylation and gestational age.

conclusionPreeclampsia is associated with altered placental DNA methylation. Fetal gender should be carefully considered during the design of future studies in which placental DNA is analyzed at the level of DNA methylation. Further large-scale analyses of preeclampsia-associated DNA methylation are necessary.

Indexed as

DNA MethylationCpG IslandsFemaleGene Expression ProfilingGestational AgeHumansMaleOligonucleotide Array Sequence AnalysisPlacentaPre-EclampsiaPregnancySequence Analysis, DNASex Characteristics

Identifiers

PMID25247495
PMCPMC4172433

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.