Evidence map›Paper›PMID 25748564›Full record

ArticleEnvironmental health perspectives2015

Placental DNA Methylation Related to Both Infant Toenail Mercury and Adverse Neurobehavioral Outcomes.

Jennifer Z J Maccani, Devin C Koestler, Barry Lester, E Andrés Houseman, David A Armstrong, Karl T Kelsey, Carmen J Marsit

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 3 pooled it
11.6field-weighted citation impact, top 1% 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

59 citing papers in PubMed, 3 syntheses or guidelines pooled it, 95 citations in OpenAlex.

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  5. B vitamins attenuate the epigenetic effects of ambient fine particles in a pilot human intervention trial.Proceedings of the National Academy of Sciences of the United States of America · 2017
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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

7 authors at 5 institutions in 1 country.

Jennifer Z J MaccaniPenn State Tobacco Center of Regulatory Science, Department of Public Health Sciences, College of Medicine, Penn State University, Hershey, Pennsylvania, USA.
Devin C Koestler
Barry Lester
E Andrés Houseman
David A Armstrong
Karl T Kelsey
Carmen J Marsit
Brown University · USDartmouth College · USOregon State University · USPenn State Milton S. Hershey Medical Center · USUniversity of Kansas Medical Center · US

Funding

Translational Engineering in Cancer (TEC)P30CA023108 · NCI · DARTMOUTH COLLEGE · PI Steven D Leach · 1985 to 2026
$91.3M
Research Training and Educational Component (Component I) p370-385P50DA036107 · NIDA · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI FOULDS, JONATHAN, MUSCAT, JOSHUA E · 2013 to 2018
$19.5M
TRAINING IN ENVIRONMENTAL PATHOLOGYT32ES007272 · NIEHS · BROWN UNIVERSITY · PI ZHITKOVICH, ANATOLY · 1992 to 2021
$7.5M
Training in Behavioral & Preventive MedicineT32HL076134 · NHLBI · MIRIAM HOSPITAL · PI John Graham Thomas · 2006 to 2026
$5.7M
Project 3: Placental Biomarkers of Exposure and Outcome (Marsit)P01ES022832 · NIEHS · DARTMOUTH COLLEGE · PI MURRAY, CAROLYN J · 2013 to 2018
$4.7M
Environment, Imprinting, and NeurodevelopmentR01ES022223 · NIEHS · EMORY UNIVERSITY · PI CHEN, JIA, MARSIT, CARMEN JOSEPH · 2013 to 2017
$4.3M
Epigenetics in Neurodevelopment and Mental HealthR01MH094609 · NIMH · DARTMOUTH COLLEGE · PI MARSIT, CARMEN JOSEPH · 2011 to 2015
$2.3M
NCI NIH HHS P30 CA023108NHLBI NIH HHS T32 HL076134NHLBI NIH HHS T32HL076134-04NIDA NIH HHS P50 DA036107NIEHS NIH HHS P01 ES022832NIEHS NIH HHS R01 ES022223NIEHS NIH HHS R01ES022223NIEHS NIH HHS T32 ES007272NIEHS NIH HHS T32ES007272NIMH NIH HHS R01 MH094609NIMH NIH HHS R01MH094609
6 · The paper itself

Abstract

backgroundPrenatal mercury (Hg) exposure is associated with adverse child neurobehavioral outcomes. Because Hg can interfere with placental functioning and cross the placenta to target the fetal brain, prenatal Hg exposure can inhibit fetal growth and development directly and indirectly.

objectivesWe examined potential associations between prenatal Hg exposure assessed through infant toenail Hg, placental DNA methylation changes, and newborn neurobehavioral outcomes.

methodsThe methylation status of > 485,000 CpG loci was interrogated in 192 placental samples using Illumina's Infinium HumanMethylation450 BeadArray. Hg concentrations were analyzed in toenail clippings from a subset of 41 infants; neurobehavior was assessed using the NICU Network Neurobehavioral Scales (NNNS) in an independent subset of 151 infants.

resultsWe identified 339 loci with an average methylation difference > 0.125 between any two toenail Hg tertiles. Variation among these loci was subsequently found to be associated with a high-risk neurodevelopmental profile (omnibus p-value = 0.007) characterized by the NNNS. Ten loci had p < 0.01 for the association between methylation and the high-risk NNNS profile. Six of 10 loci reside in the EMID2 gene and were hypomethylated in the 16 high-risk profile infants' placentas. Methylation at these loci was moderately correlated (correlation coefficients range, -0.33 to -0.45) with EMID2 expression.

conclusionsEMID2 hypomethylation may represent a novel mechanism linking in utero Hg exposure and adverse infant neurobehavioral outcomes.

Indexed as

Child DevelopmentDNA MethylationInfant BehaviorFemaleHumansInfantInfant, NewbornMaleMaternal-Fetal ExchangeMercuryNailsNeonatal ScreeningPlacentaPregnancyPrenatal Exposure Delayed EffectsRhode IslandMercury

Identifiers

PMID25748564
PMCPMC4492267
OpenAlexW2024977655

What OpenQuestion holds

Textmetadata
LicenceCC0
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.