Evidence map›Paper›PMID 26214307›Full record

ArticlePloS one2015

Genome-Wide Mapping of 5mC and 5hmC Identified Differentially Modified Genomic Regions in Late-Onset Severe Preeclampsia: A Pilot Study.

Lisha Zhu, Ruitu Lv, Lingchun Kong, Haidong Cheng, Fei Lan, Xiaotian Li

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 7% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 33 citations in OpenAlex.

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  15. Ten-eleven translocation 2 demethylates theThe Journal of biological chemistry · 2018
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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

6 authors at 2 institutions in 1 country.

Lisha ZhuObstetrics Department, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China, 200011.
Ruitu LvKey Laboratory of Epigenetics of Shanghai Ministry of Education, School of Basic Medicine and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China.
Lingchun KongKey Laboratory of Epigenetics of Shanghai Ministry of Education, School of Basic Medicine and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China.
Haidong ChengObstetrics Department, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China, 200011.
Fei LanKey Laboratory of Epigenetics of Shanghai Ministry of Education, School of Basic Medicine and Institutes of Biomedical Sciences, Shanghai Medical College of Fudan University, Shanghai 200032, China; Key Laboratory of Birth Defect, Children's Hospital of Fudan University, Shanghai 201102, China.
Xiaotian LiObstetrics Department, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China, 200011.
Obstetrics and Gynecology Hospital of Fudan University · CNShanghai Medical College of Fudan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preeclampsia (PE) is a leading cause of perinatal morbidity and mortality. However, as a common form of PE, the etiology of late-onset PE is elusive. We analyzed 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) levels in the placentas of late-onset severe PE patients (n = 4) and normal controls (n = 4) using a (hydroxy)methylated DNA immunoprecipitation approach combined with deep sequencing ([h]MeDIP-seq), and the results were verified by (h)MeDIP-qPCR. The most significant differentially methylated regions (DMRs) were verified by MassARRAY EppiTYPER in an enlarged sample size (n = 20). Bioinformatics analysis identified 714 peaks of 5mC that were associated with 403 genes and 119 peaks of 5hmC that were associated with 61 genes, thus showing significant differences between the PE patients and the controls (>2-fold, p<0.05). Further, only one gene, PTPRN2, had both 5mC and 5hmC changes in patients. The ErbB signaling pathway was enriched in those 403 genes that had significantly different 5mC level between the groups. This genome-wide mapping of 5mC and 5hmC in late-onset severe PE and normal controls demonstrates that both 5mC and 5hmC play epigenetic roles in the regulation of the disease, but work independently. We reveal the genome-wide mapping of DNA methylation and DNA hydroxymethylation in late-onset PE placentas for the first time, and the identified ErbB signaling pathway and the gene PTPRN2 may be relevant to the epigenetic pathogenesis of late-onset PE.

Indexed as

DNA MethylationEpigenesis, GeneticGenome, HumanGenome-Wide Association StudyPre-Eclampsia5-MethylcytosineAdultCytosineErbB ReceptorsFemaleHumansPilot ProjectsPregnancyReceptor-Like Protein Tyrosine Phosphatases, Class 8Signal Transduction5-hydroxymethylcytosine5-MethylcytosineCytosineEGFR protein, humanErbB ReceptorsPTPRN2 protein, humanReceptor-Like Protein Tyrosine Phosphatases, Class 8

Identifiers

PMID26214307
PMCPMC4516306
OpenAlexW1889399788

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.