Evidence map›Paper›PMID 23715639›Full record

ArticlePsychopharmacology2013

The association between the catechol-O-methyltransferase Val108/158Met polymorphism and hyperactive-impulsive and inattentive symptoms in youth.

Matea Nikolac Perkovic, Evelyn Kiive, Gordana Nedic Erjavec, Toomas Veidebaum, Mario Curkovic, Katarina Dodig-Curkovic, Dorotea Muck-Seler, Jaanus Harro, Nela Pivac

Abstract read
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

  1. International journal of molecular sciences · 2022
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. 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

9 authors at 4 institutions in 2 countries.

Matea Nikolac PerkovicDivision of Molecular Medicine, Rudjer Boskovic Institute, PO Box 180, HR-10002, Zagreb, Croatia.
Evelyn Kiive
Gordana Nedic Erjavec
Toomas Veidebaum
Mario Curkovic
Katarina Dodig-Curkovic
Dorotea Muck-Seler
Jaanus Harro
Nela Pivac
Rudjer Boskovic Institute · HRUniversity of Osijek · HRUniversity of Tartu · EENational Institute for Health Development · EE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleHyperactivity, impulsivity, and inattention are major symptoms occurring in attention-deficit/hyperactivity disorder. This disorder is highly heritable, multifactorial, polygenic, and associated primarily with dysfunctions of dopaminergic, noradrenergic, and serotonergic systems.

objectivesThe present study tested the possible association of the catechol-O-methyltransferase (COMT) Val108/158Met (rs4680) polymorphism with hyperactive-impulsive and inattentive symptoms in male youth.

methodPolymorphism COMT Val108/158Met was analyzed in 807 male unrelated Caucasian young subjects: 231 healthy controls, 195 subjects with moderate hyperactive symptoms and 254 subjects with moderate inattentive symptoms, 111 subjects with severe hyperactive symptoms and 90 subjects with severe inattentive symptoms, all evaluated using Swanson, Nolan, and Pelham Questionnaire IV criteria.

resultsThe frequency of the COMT genotypes, alleles, and the homozygous Met/Met genotype versus Val carriers (χ²) test with standardized residuals) differed significantly between subjects without and subjects with hyperactive-impulsive and inattentive symptoms. In addition, significantly higher hyperactive-impulsive and inattentive scores were found in subjects with the Met/Met genotype compared to carriers of other COMT genotypes. These significant results were due to the more frequent occurrence of Met/Met genotype or the Met allele in subjects with moderate and severe hyperactive-impulsive and inattentive symptoms compared to matched controls.

conclusionThese results suggest that the Met/Met genotype or the Met allele of the COMT Val108/158Met, contributing to higher dopaminergic activity, are significantly overrepresented in subjects with moderate or severe hyperactive-impulsive and inattentive symptoms, and that this polymorphism is significantly associated with hyperactive-impulsive and inattentive symptoms in young boys and adolescents.

Indexed as

AdolescentAllelesAttention Deficit Disorder with HyperactivityCase-Control StudiesCatechol O-MethyltransferaseChildDopamineGenetic Predisposition to DiseaseGenotypeHumansImpulsive BehaviorMalePolymorphism, Single NucleotidePsychometricsSeverity of Illness IndexSurveys and QuestionnairesCatechol O-MethyltransferaseDopamine

Identifiers

PMID23715639
OpenAlexW2062395754

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.