Evidence map›Paper›PMID 28548590›Full record

ArticleEpigenetics2017

Prenatal exposure to neurotoxic metals is associated with increased placental glucocorticoid receptor DNA methylation.

Allison A Appleton, Brian P Jackson, Margaret Karagas, Carmen J Marsit

Open access · greenAbstract read
In one paragraph

Article in Epigenetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 3 pooled it
3.5field-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

41 citing papers in PubMed, 3 syntheses or guidelines pooled it, 75 citations in OpenAlex.

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  20. Genetics and Epigenetics of Manganese Toxicity.Current environmental health reports · 2022
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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

4 authors at 3 institutions in 1 country.

Allison A Appletona Department of Epidemiology and Biostatistics , University at Albany School of Public Health , Rensselaer , NY , USA.
Brian P Jacksonb Department of Earth Sciences, Dartmouth College , Hanover , NH , USA.
Margaret Karagasc Department of Epidemiology , Geisel School of Medicine at Dartmouth , One Medical Center Drive, Lebanon , NH , USA.ORCID 0000-0002-6398-7362
Carmen J Marsitd Department of Environmental Health, Rollins School of Public Health , Emory University , Atlanta , GA , USA.
Dartmouth College · USEmory University · USUniversity at Albany, State University of New York · US

Funding

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
Enriching the Rhode Island Child Health StudyR24ES028507 · NIEHS · EMORY UNIVERSITY · PI Carmen Joseph Marsit, LAURA R STROUD · 2017 to 2026
$2.3M
NIEHS NIH HHS P01 ES022832NIEHS NIH HHS R01 ES022223NIMH NIH HHS R01 MH094609
6 · The paper itself

Abstract

Epigenetic alterations related to prenatal neurotoxic metals exposure may be key in understanding the origins of cognitive and neurobehavioral problems in children. Placental glucocorticoid receptor (NR3C1) methylation has been linked to neurobehavioral risk in early life, but has not been examined in response to neurotoxic metals exposure despite parallel lines of research showing metals exposure and NR3C1 methylation each contribute to a similar set of neurobehavioral phenotypes. Thus, we conducted a study of prenatal neurotoxic metals exposure and placental NR3C1 methylation in a cohort of healthy term singleton pregnancies from Rhode Island, USA (n = 222). Concentrations of arsenic (As; median 0.02 ug/g), cadmium (Cd; median 0.03 μg/g), lead (Pb; median 0.40 μg/g), manganese (Mn; median 0.56 μg/g), mercury (Hg; median 0.02 μg/g), and zinc (Zn; 145.18 μg/g) measured in infant toenails were categorized as tertiles. Multivariable linear regression models tested the independent associations for each metal with NR3C1 methylation, as well as the cumulative risk of exposure to multiple metals simultaneously. Compared to the lowest exposure tertiles, higher levels of As, Cd, Pb, Mn, and Hg were each associated with increased placental NR3C1 methylation (all P<0.02). Coefficients for these associations corresponded with a 0.71-1.41 percent increase in NR3C1 methylation per tertile increase in metals concentrations. For Zn, the lowest exposure tertile compared with the highest tertile was associated with 1.26 percent increase in NR3C1 methylation (P=0.01). Higher cumulative metal risk scores were marginally associated with greater NR3C1 methylation. Taken together, these results indicate that prenatal exposure to neurotoxic metals may affect the offspring's NR3C1 activity, which may help explain cognitive and neurodevelopmental risk later in life.

Indexed as

AdultDNA MethylationEpigenesis, GeneticFemaleHumansInfant, NewbornMaleMetals, HeavyNailsPlacentaPregnancyPrenatal Exposure Delayed EffectsReceptors, GlucocorticoidMetals, HeavyNR3C1 protein, humanReceptors, GlucocorticoidMetalsNR3C1placentaprenatal exposure

Identifiers

PMID28548590
PMCPMC5687337
OpenAlexW2616944718

What OpenQuestion holds

Textmetadata
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.