Evidence map›Paper›PMID 28322272›Full record

ArticleMolecular psychiatry2018

Neuroanatomic, epigenetic and genetic differences in monozygotic twins discordant for attention deficit hyperactivity disorder.

Y-C Chen, G Sudre, W Sharp, F Donovan, S C Chandrasekharappa, N Hansen, L Elnitski, P Shaw

Abstract readTwin Study
In one paragraph

Article in Molecular psychiatry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 2 pooled it
4.5field-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

36 citing papers in PubMed, 2 syntheses or guidelines pooled it, 68 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Epigenetics and ADHD.Current topics in behavioral neurosciences · 2022
    Article
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

8 authors at 3 institutions in 1 country.

Y-C ChenGenomic Functional Analysis Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
G SudreNeurobehavioral Clinical Research Section, Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
W SharpNeurobehavioral Clinical Research Section, Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
F DonovanGenomics Core and Cancer Genomics Unit, Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
S C ChandrasekharappaGenomics Core and Cancer Genomics Unit, Cancer Genetics and Comparative Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
N HansenGenome Technology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
L ElnitskiGenomic Functional Analysis Section, Translational and Functional Genomics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
P ShawNeurobehavioral Clinical Research Section, Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
National Institutes of Health · USNational Human Genome Research Institute · USCancer Genetics (United States) · US

Funding

Regulatory and epigenetic landscapes reveal biological processes, disease mechanisms and diagnostic markersZIAHG200323 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI ELNITSKI, LAURA L · 2009 to 2025
$27.6M
Comparative Genomics Unit ResearchZIAHG200330 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI MULLIKIN, JAMES C · 2009 to 2022
$17.9M
The neurobehavioral, environmental and genetic factors impacting ADHD.ZIAHG200378 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI SHAW, PHILIP · 2012 to 2025
$17.7M
NHGRI/DIR Genomics CoreZICHG200346 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI CHANDRASEKHARAPPA, SETTARA · 2010 to 2025
$14.5M
POSITIONAL CLONING OF THE MEN1 GENEZIAHG000029 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI CHANDRASEKHARAPPA, SETTARA · 2009 to 2025
$13.3M
Intramural NIH HHS ZIA HG200378
6 · The paper itself

Abstract

The study of monozygotic twins discordant for attention deficit hyperactivity disorder can elucidate mechanisms that contribute to the disorder, which affects ~7% of children. First, using in vivo neuroanatomic imaging on 14 pairs of monozygotic twins (mean age 9.7, s.d. 1.9 years), we found that discordance for the disorder is mirrored by differing dimensions of deep brain structures (the striatum and cerebellum), but not the cerebral cortex. Next, using whole-blood DNA from the same twins, we found a significant enrichment of epigenetic differences in genes expressed in these 'discordant' brain structures. Specifically, there is differential methylation of probes lying in the shore and shelf and enhancer regions of striatal and cerebellar genes. Notably, gene sets pertaining to the cerebral cortex (which did not differ in volume between affected and unaffected twins) were not enriched by differentially methylated probes. Genotypic differences between the twin pairs-such as copy number and rare, single-nucleotide variants-did not contribute to phenotypic discordance. Pathway analyses of the genes implicated by the most differentially methylated probes implicated γ-aminobutyric acid (GABA), dopamine and serotonin neurotransmitter systems. The study illustrates how neuroimaging can help guide the search for epigenomic mechanisms in neurodevelopmental disorders.

Indexed as

Attention Deficit Disorder with HyperactivityBrainCerebellumChildCorpus StriatumDiseases in TwinsDNA MethylationEpigenesis, GeneticEpigenomicsFemaleGenotypeHumansMaleNeurodevelopmental DisordersPhenotypeTwins, Monozygotic

Identifiers

PMID28322272
PMCPMC5914518
OpenAlexW2597426509

What OpenQuestion holds

Textmetadata
LicenceTDM
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.