Evidence map›Paper›PMID 27448387›Full record

SynthesisEnvironmental health perspectives2017

Epigenome-Wide Meta-Analysis of Methylation in Children Related to Prenatal NO2 Air Pollution Exposure.

Olena Gruzieva, Cheng-Jian Xu, Carrie V Breton, Isabella Annesi-Maesano, Josep M Antó, Charles Auffray, Stéphane Ballereau, Tom Bellander, Jean Bousquet, Mariona Bustamante and 26 more

Open access · diamondAbstract readMeta-Analysis
In one paragraph

Synthesis in Environmental health perspectives, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers, 11 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed, 11 pooled it
20.5field-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

119 citing papers in PubMed, 11 syntheses or guidelines pooled it, 228 citations in OpenAlex.

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  20. Maternal Nutrition, Toxicants, and Epigenetic Programming of Obesity Across Generations.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
    Review

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

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

36 authors at 15 institutions in 7 countries.

Olena GruzievaInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Cheng-Jian Xu
Carrie V Breton
Isabella Annesi-Maesano
Josep M Antó
Charles Auffray
Stéphane Ballereau
Tom Bellander
Jean Bousquet
Mariona Bustamante
Marie-Aline Charles
Yvonne de Kluizenaar
Herman T den Dekker
Liesbeth Duijts
Janine F Felix
Ulrike Gehring
Mònica Guxens
Vincent V W Jaddoe
Soesma A Jankipersadsing
Simon Kebede Merid
Juha Kere
Ashish Kumar
Nathanael Lemonnier
Johanna Lepeule
Wenche Nystad
Christian Magnus Page
Sviatlana Panasevich
Dirkje Postma
Rémy Slama
Jordi Sunyer
Cilla Söderhäll
Jin Yao
Stephanie J London
Göran Pershagen
Gerard H Koppelman
Erik Melén
Erasmus MC · NLInserm · FRKarolinska Institutet · SEUniversitat Pompeu Fabra · ESNorwegian Institute of Public Health · NOStockholm County Council · SEUniversité Claude Bernard Lyon 1 · FRUniversity Medical Center Groningen · NLUniversity of Southern California · USInstitute for Asthma and Allergy · USNational Institutes of Health · USNetherlands Organisation for Applied Scientific Research · NLSwiss Tropical and Public Health Institute · CHUniversité de Montpellier · FRUtrecht University · NL

Funding

Translational Research Support CoreP30ES007048 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ROB S MCCONNELL · 1996 to 2026
$46.4M
Genetic And Environmental Factors In Childhood Respiratory HealthZIAES049019 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI LONDON, STEPHANIE · 2009 to 2025
$6.8M
NIEHS NIH HHS P30 ES007048
6 · The paper itself

Abstract

backgroundPrenatal exposure to air pollution is considered to be associated with adverse effects on child health. This may partly be mediated by mechanisms related to DNA methylation.

objectivesWe investigated associations between exposure to air pollution, using nitrogen dioxide (NO2) as marker, and epigenome-wide cord blood DNA methylation.

methodsWe meta-analyzed the associations between NO2 exposure at residential addresses during pregnancy and cord blood DNA methylation (Illumina 450K) in four European and North American studies (n = 1,508) with subsequent look-up analyses in children ages 4 (n = 733) and 8 (n = 786) years. Additionally, we applied a literature-based candidate approach for antioxidant and anti-inflammatory genes. To assess influence of exposure at the transcriptomics level, we related mRNA expression in blood cells to NO2 exposure in 4- (n = 111) and 16-year-olds (n = 239).

resultsWe found epigenome-wide significant associations [false discovery rate (FDR) p < 0.05] between maternal NO2 exposure during pregnancy and DNA methylation in newborns for 3 CpG sites in mitochondria-related genes: cg12283362 (LONP1), cg24172570 (3.8 kbp upstream of HIBADH), and cg08973675 (SLC25A28). The associations with cg08973675 methylation were also significant in the older children. Further analysis of antioxidant and anti-inflammatory genes revealed differentially methylated CpGs in CAT and TPO in newborns (FDR p < 0.05). NO2 exposure at the time of biosampling in childhood had a significant impact on CAT and TPO expression.

conclusionsNO2 exposure during pregnancy was associated with differential offspring DNA methylation in mitochondria-related genes. Exposure to NO2 was also linked to differential methylation as well as expression of genes involved in antioxidant defense pathways. Citation: Gruzieva O, Xu CJ, Breton CV, Annesi-Maesano I, Antó JM, Auffray C, Ballereau S, Bellander T, Bousquet J, Bustamante M, Charles MA, de Kluizenaar Y, den Dekker HT, Duijts L, Felix JF, Gehring U, Guxens M, Jaddoe VV, Jankipersadsing SA, Merid SK, Kere J, Kumar A, Lemonnier N, Lepeule J, Nystad W, Page CM, Panasevich S, Postma D, Slama R, Sunyer J, Söderhäll C, Yao J, London SJ, Pershagen G, Koppelman GH, Melén E. 2017. Epigenome-wide meta-analysis of methylation in children related to prenatal NO2 air pollution exposure. Environ Health Perspect 125:104-110; http://dx.doi.org/10.1289/EHP36.

Indexed as

DNA MethylationAir PollutantsAir PollutionChildFemaleHumansInfant, NewbornLondonMaternal ExposureNitrogen DioxidePregnancyPrenatal Exposure Delayed EffectsAir PollutantsNitrogen Dioxide

Identifiers

PMID27448387
PMCPMC5226705
OpenAlexW2497879403

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.