Evidence map›Paper›PMID 15182372›Full record

ArticleBMC psychiatry2004

No evidence of association between Catechol-O-Methyltransferase (COMT) Val158Met genotype and performance on neuropsychological tasks in children with ADHD: a case-control study.

Sophie Mills, Kate Langley, Marianne Van den Bree, Eddy Street, Darko Turic, Michael J Owen, Michael C O'Donovan, Anita Thapar

Abstract readComparative Study
In one paragraph

Article in BMC psychiatry, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. International journal of molecular sciences · 2022
    Pooled it
  2. Pooled it
  3. Review
  4. Pharmacogenomic Testing in Child and Adolescent Psychiatry: An Evidence-Based Review.Current problems in pediatric and adolescent health care · 2018
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. A comparison of molecular alterations in environmental and genetic rat models of ADHD: a pilot study.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2008
    Article
  12. Review
  13. 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.

Sophie MillsDepartment of Psychological Medicine, University of Wales College of Medicine, Cardiff, CF14 4XN, UK. millss1@cf.ac.uk
Kate Langley
Marianne Van den Bree
Eddy Street
Darko Turic
Michael J Owen
Michael C O'Donovan
Anita Thapar

Funding

Medical Research Council G9810900Wellcome Trust
6 · The paper itself

Abstract

backgroundSeveral studies have suggested an association between the functional Val158Met polymorphism in the Catechol-O-Methyltransferase (COMT) gene and neurocognitive performance. Two studies showed that subjects with the low activity Met allele performed better on the Wisconsin Card Sorting Test (WCST) and another study found an effect on processing speed and attention.

methodsWe set out to examine the association between the Val158Met polymorphism and performance on neurocognitive tasks including those tapping working memory, attention and speed, impulsiveness and response inhibition in a sample of 124 children with ADHD. Task performance for each genotypic group was compared using analysis of variance.

resultsThere was no evidence of association with performance on any of the neurocognitive tasks.

conclusionsWe conclude that Val158Met COMT genotype is not associated with neurocognitive performance in our sample.

Indexed as

Neuropsychological TestsPolymorphism, GeneticAdolescentAttention Deficit Disorder with HyperactivityCatechol O-MethyltransferaseChildFemaleGenotypeHumansMaleMethionineRegression AnalysisTask Performance and AnalysisValineCatechol O-MethyltransferaseMethionineValine

Identifiers

PMID15182372
PMCPMC425584

What OpenQuestion holds

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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.