Evidence map›Paper›PMID 33827680›Full record

ArticleClinical epigenetics2021

DNA methylation of GFI1 as a mediator of the association between prenatal smoking exposure and ADHD symptoms at 6 years: the Hokkaido Study on Environment and Children's Health.

Kunio Miyake, Chihiro Miyashita, Atsuko Ikeda-Araki, Ryu Miura, Sachiko Itoh, Keiko Yamazaki, Sumitaka Kobayashi, Hideyuki Masuda, Tadao Ooka, Zentaro Yamagata and 1 more

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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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

11 authors at 3 institutions in 1 country.

Kunio Miyake *Departments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan. kmiyake@yamanashi.ac.jp.ORCID 0000-0001-9196-2229
Chihiro Miyashita *Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Atsuko Ikeda-ArakiCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Ryu MiuraCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Sachiko ItohCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Keiko YamazakiCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Sumitaka KobayashiCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Hideyuki MasudaCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Tadao OokaDepartments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
Zentaro YamagataDepartments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
Reiko KishiCenter for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan.
Health Sciences University of Hokkaido · JPUniversity of Yamanashi · JPUniversity of Yamanashi Hospital · JP

Funding

Environment Research and Technology Development Fund from the Ministry of the Environment, Japan. JPMEERF20145054Health Science Research from the Japanese Ministry of Health, Labor and Welfare JPMH17932352Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology JP16H02645Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology JP19H01071Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology JP20H03928Scientific Research from the Japanese Ministry of Education, Culture, Sports, Science and Technology JP20K21707
6 · The paper itself

Abstract

backgroundPrenatal smoking exposure has been associated with childhood attention-deficit/hyperactivity disorder (ADHD). However, the mechanism underlying this relationship remains unclear. We assessed whether DNA methylation differences may mediate the association between prenatal smoking exposure and ADHD symptoms at the age of 6 years.

resultsWe selected 1150 mother-infant pairs from the Hokkaido Study on the Environment and Children's Health. Mothers were categorized into three groups according to plasma cotinine levels at the third trimester: non-smokers (≤ 0.21 ng/mL), passive smokers (0.21-11.48 ng/mL), and active smokers (≥ 11.49 ng/mL). The children's ADHD symptoms were determined by the ADHD-Rating Scale at the age of 6 years. Maternal active smoking during pregnancy was significantly associated with an increased risk of ADHD symptoms (odds ratio, 1.89; 95% confidence interval, 1.14-3.15) compared to non-smoking after adjusting for covariates. DNA methylation of the growth factor-independent 1 transcriptional repressor (GFI1) region, as determined by bisulfite next-generation sequencing of cord blood samples, mediated 48.4% of the total effect of the association between maternal active smoking during pregnancy and ADHD symptoms. DNA methylation patterns of other genes (aryl-hydrocarbon receptor repressor [AHRR], cytochrome P450 family 1 subfamily A member 1 [CYP1A1], estrogen receptor 1 [ESR1], and myosin IG [MYO1G]) regions did not exert a statistically significant mediation effect.

conclusionsOur findings demonstrated that DNA methylation of GFI1 mediated the association between maternal active smoking during pregnancy and ADHD symptoms at the age of 6 years.

Indexed as

DNA MethylationAdultAsian PeopleAttention Deficit Disorder with HyperactivityChildDNA-Binding ProteinsFemaleGene Expression RegulationHumansJapanMaleMaternal ExposurePregnancyPrenatal Exposure Delayed EffectsSmokingTranscription FactorsDNA-Binding ProteinsGFI1 protein, humanTranscription FactorsADHDBirth cohortDNA methylationDOHaDGFI1Prenatal smoking exposure

Identifiers

PMID33827680
PMCPMC8028116
OpenAlexW3152167529

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Registered trials

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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.