Evidence map›Paper›PMID 28032437›Full record

ArticleHuman brain mapping2017

Birth weight discordance, DNA methylation, and cortical morphology of adolescent monozygotic twins.

Kevin F Casey, Melissa L Levesque, Moshe Szyf, Elmira Ismaylova, Marie-Pier Verner, Matthew Suderman, Frank Vitaro, Mara Brendgen, Ginette Dionne, Michel Boivin and 2 more

Open access · greenAbstract readTwin Study
In one paragraph

Article in Human brain mapping, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 4 pooled it
5.2field-weighted citation impact, top 5% 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, 4 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Linking pregnancy- and birth-related risk factors to a multivariate fusion of child cortical structure.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  10. Very Early-Life Risk Factors for Developing Dementia: Evidence From Full Population Registers.The journals of gerontology. Series B, Psychological sciences and social sciences · 2023
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  11. Genetics and voice production in childhood and adolescence - a review.International journal of pediatrics & adolescent medicine · 2022
    Article
  12. Article
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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

12 authors at 7 institutions in 4 countries.

Kevin F CaseyCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Melissa L LevesqueCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Moshe SzyfDepartment of Pharmacology and Therapeutics, McGill University, Montreal, Québec, Canada.
Elmira IsmaylovaCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Marie-Pier VernerCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Matthew SudermanDepartment of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Frank VitaroPsychoeducation, University of Montreal, Montreal, Québec, Canada.
Mara BrendgenDepartment of Psychology, UQAM, Montreal, Québec, Canada.
Ginette DionneSchool of Psychology, University of Laval, Québec City, Québec, Canada.
Michel BoivinSchool of Psychology, University of Laval, Québec City, Québec, Canada.
Richard E TremblayCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Linda BooijCHU Sainte-Justine Research Center, Montreal, Québec, Canada.
Centre Hospitalier Universitaire Sainte-Justine · CAUniversité de Montréal · CAMcGill University · CANational Research Tomsk State University · RUUniversité du Québec à Montréal · CAUniversité Laval · CAUniversity of Bristol · GB

Funding

CIHR
6 · The paper itself

Abstract

backgroundSeveral studies have shown that the in utero environment, which can be indexed by birth weight (BW), is associated with cortical morphology in adolescence and adulthood. Work in monozygotic (MZ) twins suggests that this association is driven by non-shared environmental factors. This correlation could be the result of in utero impacts on DNA methylation. The aim of the present study with MZ twins is to replicate the association between discordance in BW and brain morphology and test whether discordance in DNA methylation mediates this relationship.

methodsOne hundred and four adolescent MZ twins (52 pairs, of which 42% were male pairs) who have been followed regularly since birth underwent T1 weighted structural MRI, and epigenome-wide assessment of DNA methylation from saliva at age 15.

resultsCo-twins had very similar measures of DNA methylation and cortical morphology. Higher BW members of a twin pair had increased total cortical surface area, and decreased cortical thickness compared to their lower BW sibling. BW Discordance was positively associated with both cortical surface area and cortical volume discordance. Genes involved in neurodevelopment were tentatively identified as mediators of both the BW - cortical volume, and BW- cortical surface area relationships.

conclusionsThe association between BW and cortical morphology in adolescence appears to be attributable to in utero environmental effects, and DNA methylation may play a role in mediating this relationship. Hum Brain Mapp 38:2037-2050, 2017. © 2017 Wiley Periodicals, Inc.

Indexed as

AdolescentBirth WeightCerebral CortexDNA MethylationFemaleGene Regulatory NetworksHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleReproducibility of ResultsSalivaTwins, Monozygoticbirth weightbrain developmentbrain morphometrychild developmentepigeneticsgenome-wideMRIneurodevelopmenttwin designs

Identifiers

PMID28032437
PMCPMC6866862
OpenAlexW2564351137

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.