Evidence map›Paper›PMID 22490988›Full record

ArticleEuropean journal of human genetics : EJHG2012

De novo and inherited CNVs in MZ twin pairs selected for discordance and concordance on Attention Problems.

Erik A Ehli, Abdel Abdellaoui, Yueshan Hu, Jouke Jan Hottenga, Mathijs Kattenberg, Toos van Beijsterveldt, Meike Bartels, Robert R Althoff, Xiangjun Xiao, Paul Scheet and 4 more

Abstract readTwin Study
In one paragraph

Article in European journal of human genetics : EJHG, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Distribution of disease-associated copy number variants across distinct disorders of cognitive development.Journal of the American Academy of Child and Adolescent Psychiatry · 2013
    Pooled it
  2. Trial
  3. Twins, tissue, and time: an assessment of SNPs and CNVs.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2012
    Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Genetic instrumental variable regression: Explaining socioeconomic and health outcomes in nonexperimental data.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  9. Copy Number Variants and Exome Sequencing Analysis in Six Pairs of Chinese Monozygotic Twins Discordant for Congenital Heart Disease.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2017
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Twin Mitochondrial Sequence Analysis.Molecular genetics & genomic medicine · 2013
    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

14 authors.

Erik A EhliAvera Institute for Human Genetics, Avera Behavioral Health Center, Sioux Falls, SD 57106, USA.
Abdel Abdellaoui
Yueshan Hu
Jouke Jan Hottenga
Mathijs Kattenberg
Toos van Beijsterveldt
Meike Bartels
Robert R Althoff
Xiangjun Xiao
Paul Scheet
Eco J de Geus
James J Hudziak
Dorret I Boomsma
Gareth E Davies

Funding

NIMH Center Repository Supporting Stem Cell ResearchU24MH068457 · NIMH · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI BRZUSTOWICZ, LINDA M, KNOWLES, JAMES A · 2003 to 2024
$213.8M
Genomics of Developmental Trajectories in TwinsRC2MH089995 · NIMH · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI HUDZIAK, JAMES J. · 2009 to 2010
$3.8M
DEVELOPMENTAL TWIN STUDY: ATTENTION, AGGRESSION, AFFECTR01MH058799 · NIMH · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI HUDZIAK, JAMES J. · 2000 to 2004
$1.7M
European Research Council 230374NIMH NIH HHS 1RC2 MH089995-01NIMH NIH HHS R01 MH58799-03NIMH NIH HHS U24 MH068457NIMH NIH HHS U24 MH068457-06
6 · The paper itself

Abstract

Copy number variations (CNVs) have been reported to be causal suspects in a variety of psychopathologic traits. We investigate whether de novo and/or inherited CNVs contribute to the risk for Attention Problems (APs) in children. Based on longitudinal phenotyping, 50 concordant and discordant monozygotic (MZ) twin pairs were selected from a sample of ∼3200 MZ pairs. Two types of de novo CNVs were investigated: (1) CNVs shared by both MZ twins, but not inherited (pre-twinning de novo CNVs), which were detected by comparing copy number (CN) calls between parents and twins and (2) CNVs not shared by co-twins (post-twinning de novo CNVs), which were investigated by comparing the CN calls within MZ pairs. The association between the overall CNV burden and AP was also investigated for CNVs genome-wide, CNVs within genes and CNVs outside of genes. Two de novo CNVs were identified and validated using quantitative PCR: a pre-twinning de novo duplication in a concordant-unaffected twin pair and a post-twinning deletion in the higher scoring twin from a concordant-affected pair. For the overall CNV burden analyses, affected individuals had significantly larger CNVs that overlapped with genes than unaffected individuals (P=0.008). This study suggests that the presence of larger CNVs may increase the risk for AP, because they are more likely to affect genes, and confirms that MZ twins are not always genetically identical.

Indexed as

Attention Deficit Disorder with HyperactivityChildDNA Copy Number VariationsFemaleGenome, HumanHumansMaleTwins, Monozygotic

Identifiers

PMID22490988
PMCPMC3449078

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.