Evidence map›Paper›PMID 25325195›Full record

ArticleEnvironmental health perspectives2015

Gene-specific differential DNA methylation and chronic arsenic exposure in an epigenome-wide association study of adults in Bangladesh.

Maria Argos, Lin Chen, Farzana Jasmine, Lin Tong, Brandon L Pierce, Shantanu Roy, Rachelle Paul-Brutus, Mary V Gamble, Kristin N Harper, Faruque Parvez and 7 more

Abstract 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 49 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

49 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  13. Update of the risk assessment of inorganic arsenic in food.EFSA journal. European Food Safety Authority · 2024
    Article
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  17. Epigenomic reprogramming in iAs-mediated carcinogenesis.Advances in pharmacology (San Diego, Calif.) · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors.

Maria ArgosDepartment of Public Health Sciences, The University of Chicago, Chicago, Illinois, USA.
Lin Chen
Farzana Jasmine
Lin Tong
Brandon L Pierce
Shantanu Roy
Rachelle Paul-Brutus
Mary V Gamble
Kristin N Harper
Faruque Parvez
Mahfuzar Rahman
Muhammad Rakibuz-Zaman
Vesna Slavkovich
John A Baron
Joseph H Graziano
Muhammad G Kibriya
Habibul Ahsan

Funding

Training CoreP42ES010349 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI NAVAS-ACIEN, ANA · 2000 to 2020
$53.6M
True Metal fac coreP30ES009089 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MATTHEW S PERZANOWSKI · 1998 to 2026
$44.7M
Re-Engineering Translational Research at the University of ChicagoUL1TR000430 · NCATS · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2012 to 2016
$20.2M
Chemoprevention of arsenic-induced skin cancerR01CA107431 · NCI · UNIVERSITY OF CHICAGO · PI AHSAN, HABIBUL · 2005 to 2014
$17.3M
Biomarkers for Arsenic Toxicity: Genetics, Epigenetics and FolateR01ES017875 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI GAMBLE, MARY · 2010 to 2013
$1.9M
NCATS NIH HHS UL1 TR000430NCI NIH HHS R01 CA107431NIEHS NIH HHS P30 ES009089NIEHS NIH HHS P42 ES010349NIEHS NIH HHS R01 ES017875
6 · The paper itself

Abstract

backgroundInorganic arsenic is one of the most common naturally occurring contaminants found in the environment. Arsenic is associated with a number of health outcomes, with epigenetic modification suggested as a potential mechanism of toxicity.

objectiveAmong a sample of 400 adult participants, we evaluated the association between arsenic exposure, as measured by blood and urinary total arsenic concentrations, and epigenome-wide white blood cell DNA methylation.

methodsWe used linear regression models to examine the associations between arsenic exposure and methylation at each CpG site, adjusted for sex, age, and batch. Differentially methylated loci were subsequently examined in relation to corresponding gene expression for functional evidence of gene regulation.

resultsIn adjusted analyses, we observed four differentially methylated CpG sites with urinary total arsenic concentration and three differentially methylated CpG sites with blood arsenic concentration, based on the Bonferroni-corrected significance threshold of p < 1 × 10(-7). Methylation of PLA2G2C (probe cg04605617) was the most significantly associated locus in relation to both urinary (p = 3.40 × 10(-11)) and blood arsenic concentrations (p = 1.48 × 10(-11)). Three additional novel methylation loci-SQSTM1 (cg01225779), SLC4A4 (cg06121226), and IGH (cg13651690)--were also significantly associated with arsenic exposure. Further, there was evidence of methylation-related gene regulation based on gene expression for a subset of differentially methylated loci.

conclusionsWe observed significant associations between arsenic exposure and gene-specific differential white blood cell DNA methylation, suggesting that epigenetic modifications may be an important pathway underlying arsenic toxicity. The specific differentially methylated loci identified may inform potential pathways for future interventions.

Indexed as

Epigenesis, GeneticAdultAgedArsenicArsenic PoisoningBangladeshCohort StudiesCpG IslandsDNADNA MethylationEnvironmental PollutantsFemaleGene Expression RegulationHumansLeukocytesMaleArsenicDNAEnvironmental Pollutants

Identifiers

PMID25325195
PMCPMC4286273

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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.