Evidence map›Paper›PMID 19017022›Full record

ArticleJournal of child psychology and psychiatry, and allied disciplines2008

The dopamine receptor D4 7-repeat allele and prenatal smoking in ADHD-affected children and their unaffected siblings: no gene-environment interaction.

Marieke E Altink, Alejandro Arias-Vásquez, Barbara Franke, Dorine I E Slaats-Willemse, Cathelijne J M Buschgens, Nanda N J Rommelse, Ellen A Fliers, Richard Anney, Keeley-Joanne Brookes, Wai Chen and 8 more

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Journal of child psychology and psychiatry, and allied disciplines, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
2.4field-weighted citation impact, top 12% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Prenatal risk factors and genetic causes of ADHD in children.World journal of pediatrics : WJP · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Measured gene-by-environment interaction in relation to attention-deficit/hyperactivity disorder.Journal of the American Academy of Child and Adolescent Psychiatry · 2010
    Review
  11. Review
  12. Developmental origins of child mental health disorders.Journal of child psychology and psychiatry, and allied disciplines · 2008
    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

18 authors at 7 institutions in 4 countries.

Marieke E AltinkDepartment of Psychiatry, Radboud University Nijmegen, Donders Centre for Neuroscience, Medical Centre, The Netherlands.
Alejandro Arias-Vásquez
Barbara Franke
Dorine I E Slaats-Willemse
Cathelijne J M Buschgens
Nanda N J Rommelse
Ellen A Fliers
Richard Anney
Keeley-Joanne Brookes
Wai Chen
Michael Gill
Aisling Mulligan
Edmund Sonuga-Barke
Margaret Thompson
Joseph A Sergeant
Stephen V Faraone
Philip Asherson
Jan K Buitelaar
Radboud University Nijmegen · NLPsychiatry Research Trust · GBSt. James's Hospital · IERadboud University Medical Center · NLUniversity of Southampton · GBDutch Expert Centre for Screening · NLSUNY Upstate Medical University · US

Funding

International Multi-Center ADHD Genetics ProjectR01MH062873 · NIMH · UPSTATE MEDICAL UNIVERSITY · PI FARAONE, STEPHEN V · 2002 to 2007
$7.2M
NIMH NIH HHS R01 MH062873NIMH NIH HHS R01MH62873
6 · The paper itself

Abstract

backgroundThe dopamine receptor D4 (DRD4) 7-repeat allele and maternal smoking during pregnancy are both considered as risk factors in the aetiology of attention deficit hyperactivity disorder (ADHD), but few studies have been conducted on their interactive effects in causing ADHD. The purpose of this study is to examine the gene by environment (GxE) interaction of the DRD4 7-repeat allele and smoking during pregnancy on ADHD and oppositional behavior in families from the International Multicenter ADHD Genetics project; and further, to test the hypothesis that the direction of effect of the DRD4 7-repeat allele differs between ADHD affected and unaffected children.

methodsLinear mixed models were used to assess main and interactive effects of the DRD4 7-repeat allele and smoking during pregnancy in 539 ADHD-affected children and their 407 unaffected siblings, aged 6-17 years.

resultsThere was some evidence pointing to differential effects of the DRD4 7-repeat allele on ADHD and oppositional symptoms in the affected (fewer symptoms) and unaffected children (increasing ADHD symptoms of teacher ratings). Affected children were more often exposed to prenatal smoking than unaffected children. There were limited main effects of prenatal smoking on severity of symptoms. Given the number of tests performed, no indication was found for GxE interactions.

conclusionDespite the large sample size, no GxE interactions were found. The impact of the DRD4 7-repeat allele might differ, depending on affected status and rater. This finding is discussed in terms of differences in the activity of the dopaminergic system and of different genes involved in rater-specific behaviors.

Indexed as

Polymorphism, GeneticPrenatal Exposure Delayed EffectsAttention Deficit Disorder with HyperactivityCase-Control StudiesChildEuropeFemaleGenetic Predisposition to DiseaseHumansLinear ModelsMalePregnancyReceptors, Dopamine D4Risk FactorsSex DistributionSiblingsDRD4 protein, humanReceptors, Dopamine D4

Identifiers

PMID19017022
PMCPMC2870715
OpenAlexW2170362262

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.