Evidence map›Paper›PMID 31137889›Full record

ArticleNutrients2019

Dysregulation of Neuronal Genes by Fetal-Neonatal Iron Deficiency Anemia Is Associated with Altered DNA Methylation in the Rat Hippocampus.

Yu-Chin Lien, David E Condon, Michael K Georgieff, Rebecca A Simmons, Phu V Tran

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 14% 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

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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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

5 authors at 2 institutions in 1 country.

Yu-Chin LienCenter for Research on Reproduction and Women's Health, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA. ylien@pennmedicine.upenn.edu.
David E CondonCenter for Research on Reproduction and Women's Health, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA. dec986@gmail.com.
Michael K GeorgieffDepartment of Pediatrics, University of Minnesota School of Medicine, Minneapolis, MN 55455, USA. georg001@umn.edu.
Rebecca A SimmonsCenter for Research on Reproduction and Women's Health, Perelman School of Medicine, The University of Pennsylvania, Philadelphia, PA 19104, USA. rsimmons@pennmedicine.upenn.edu.
Phu V TranDepartment of Pediatrics, University of Minnesota School of Medicine, Minneapolis, MN 55455, USA. tranx271@umn.edu.
University of Pennsylvania · USUniversity of Minnesota · US

Funding

NEWBORN IRON DEFICIENCYR01HD029421 · NICHD · UNIVERSITY OF MINNESOTA TWIN CITIES · PI GEORGIEFF, MICHAEL K. · 2000 to 2015
$4.4M
Roles of Iron-Dependent PHD and JARID in Early-Life Iron Deficiency-Induced Adult Neural Gene DysregulationR01NS099178 · NINDS · UNIVERSITY OF MINNESOTA · PI TRAN, PHU V. · 2017 to 2021
$1.6M
National Institute of Child Health and Human Development R01 HD29421-20NINDS NIH HHS R01 NS099178NINDS NIH HHS R01NS099178
6 · The paper itself

Abstract

Early-life iron deficiency results in long-term abnormalities in cognitive function and affective behavior in adulthood. In preclinical models, these effects have been associated with long-term dysregulation of key neuronal genes. While limited evidence suggests histone methylation as an epigenetic mechanism underlying gene dysregulation, the role of DNA methylation remains unknown. To determine whether DNA methylation is a potential mechanism by which early-life iron deficiency induces gene dysregulation, we performed whole genome bisulfite sequencing to identify loci with altered DNA methylation in the postnatal day (P) 15 iron-deficient (ID) rat hippocampus, a time point at which the highest level of hippocampal iron deficiency is concurrent with peak iron demand for axonal and dendritic growth. We identified 229 differentially methylated loci and they were mapped within 108 genes. Among them, 63 and 45 genes showed significantly increased and decreased DNA methylation in the P15 ID hippocampus, respectively. To establish a correlation between differentially methylated loci and gene dysregulation, the methylome data were compared to our published P15 hippocampal transcriptome. Both datasets showed alteration of similar functional networks regulating nervous system development and cell-to-cell signaling that are critical for learning and behavior. Collectively, the present findings support a role for DNA methylation in neural gene dysregulation following early-life iron deficiency.

Indexed as

DNA MethylationIron DeficienciesAnemia, Iron-DeficiencyAnimalsAnimals, NewbornDisease Models, AnimalFemaleGene Expression Regulation, DevelopmentalGestational AgeHippocampusIronMaleNeurogenesisNeuronsPregnancyRats, Sprague-DawleyIronDNA methylationDNA sequencinghippocampusironmicronutrient deficiencyneurobiologyneuroplasticitytranscriptome

Identifiers

PMID31137889
PMCPMC6566599
OpenAlexW2945846549

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.