Evidence map›Paper›PMID 26771251›Full record

ArticleEnvironmental health perspectives2016

Epigenome-Wide Assessment of DNA Methylation in the Placenta and Arsenic Exposure in the New Hampshire Birth Cohort Study (USA).

Benjamin B Green, Margaret R Karagas, Tracy Punshon, Brian P Jackson, David J Robbins, E Andres Houseman, Carmen J Marsit

Open access · diamondAbstract read
In one paragraph

Article in Environmental health perspectives, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 5 pooled it
9.2field-weighted citation impact, top 2% 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

75 citing papers in PubMed, 5 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Pooled it
  2. Long-Term Safety of Prenatal and Neonatal Exposure to Paracetamol: A Systematic Review.International journal of environmental research and public health · 2022
    Pooled it
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  16. Update of the risk assessment of inorganic arsenic in food.EFSA journal. European Food Safety Authority · 2024
    Article
  17. Article
  18. Article
  19. Biomonitoring of inorganic arsenic species in pregnancy.Journal of exposure science & environmental epidemiology · 2023
    Review
  20. Review

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Benjamin B GreenDepartment of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA.
Margaret R Karagas
Tracy Punshon
Brian P Jackson
David J Robbins
E Andres Houseman
Carmen J Marsit
Dartmouth College · USOregon State University · USUniversity of Miami · US

Funding

Relation Between In-utero Vitamin D and Immune Function in Early Childhood P20GM104416 · NIGMS · DARTMOUTH COLLEGE · PI CHRISTENSEN, BROCK CLARKE · 2013 to 2022
$23.7M
Project 3: Placental Biomarkers of Exposure and Outcome (Marsit)P01ES022832 · NIEHS · DARTMOUTH COLLEGE · PI MURRAY, CAROLYN J · 2013 to 2018
$4.7M
Training Program for Quantitative Population Sciences in CancerR25CA134286 · NCI · DARTMOUTH COLLEGE · PI KARAGAS, MARGARET RITA, TOSTESON, TOR D · 2009 to 2018
$3.0M
NCI NIH HHS R25 CA134286NIEHS NIH HHS P01 ES022832NIGMS NIH HHS P20 GM104416
6 · The paper itself

Abstract

backgroundArsenic is one of the most commonly encountered environmental toxicants, and research from model systems has suggested that one mode of its toxic activity may be through alterations in DNA methylation. In utero exposure to arsenic can affect fetal, newborn, and infant health, resulting in a range of phenotypic outcomes.

objectivesThis study examined variation in placental DNA methylation and its relationship to arsenic exposure in 343 individuals enrolled in the New Hampshire Birth Cohort Study.

methodsLinear regression models using a reference-free correction to account for cellular composition were employed to determine CpG loci affected by arsenic levels.

resultsTotal arsenic measured in maternal urine during the second trimester was not associated with methylation in the placenta, whereas arsenic levels quantified through maternal toenail collected at birth were associated with methylation at a single CpG locus (p = 4.1 × 10-8). Placenta arsenic levels were associated with 163 differentially methylated loci (false discovery rate < 0.05), with 11 probes within the LYRM2 gene reaching genome-wide significance (p < 10-8). Measurement of LYRM2 mRNA levels indicated that methylation was weakly to moderately correlated with expression (r = 0.15, p < 0.06). In addition, we identified pathways suggesting changes in placental cell subpopulation proportions associated with arsenic exposure.

conclusionsThese data demonstrate the potential for arsenic, even at levels commonly experienced in a U.S. population, to have effects on the DNA methylation status of specific genes in the placenta and thus supports a potentially novel mechanism for arsenic to affect long-term children's health. CITATION: Green BB, Karagas MR, Punshon T, Jackson BP, Robbins DJ, Houseman EA, Marsit CJ. 2016. Epigenome-wide assessment of DNA methylation in the placenta and arsenic exposure in the New Hampshire Birth Cohort Study (USA). Environ Health Perspect 124:1253-1260; http://dx.doi.org/10.1289/ehp.1510437.

Indexed as

DNA MethylationArsenicBirth WeightCohort StudiesEpigenesis, GeneticFemaleGenome-Wide Association StudyHazardous SubstancesHumansMaternal ExposureNew HampshirePlacentaPregnancyPrenatal Exposure Delayed EffectsArsenicHazardous Substances

Identifiers

PMID26771251
PMCPMC4977055
OpenAlexW2409916764

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.