Evidence map›Paper›PMID 21140256›Full record

ArticlePsychopharmacology2011

Effects of the serotonin transporter (5-HTTLPR) and α2A-adrenoceptor (C-1291G) genotypes on substance use in children and adolescents: a longitudinal study.

Liis Merenäkk, Jarek Mäestu, Niklas Nordquist, Jüri Parik, Lars Oreland, Helle-Mai Loit, Jaanus Harro

Abstract read
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In one paragraph

Article in Psychopharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 30% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Genome-Wide Meta-Analysis of Longitudinal Alcohol Consumption Across Youth and Early Adulthood.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2015
    Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Personality as an intermediate phenotype for genetic dissection of alcohol use disorder.Journal of neural transmission (Vienna, Austria : 1996) · 2018
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Dopamine Genetics and Function in Food and Substance Abuse.Journal of genetic syndromes & gene therapy · 2013
    Article
  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

7 authors at 3 institutions in 2 countries.

Liis MerenäkkDepartment of Public Health, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Tartu, Estonia.
Jarek Mäestu
Niklas Nordquist
Jüri Parik
Lars Oreland
Helle-Mai Loit
Jaanus Harro
University of Tartu · EEUppsala University · SENational Institute for Health Development · EE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RATIONALE AND

objectiveTwin studies suggest that substance use initiation in children and adolescents is determined primarily by environmental influences, whereas the establishment of use patterns is strongly controlled by genetic factors. The present study analysed the effects of the serotonin transporter promoter polymorphism [5-HT transporter gene-linked polymorphic region (5-HTTLPR)] and the α(2A)-adrenoceptor C-1291G genotype (ADRA2A C-1291G) as well as their interaction effects on alcohol, tobacco and drug use from preadolescence to the late adolescence.

methodsInitial sample of 9-year-old children of Estonian Children Personality Behaviour and Health Study (n = 583) was recalled at ages 15 and 18. Participants reported in all waves how frequently they smoked and used alcohol and illicit drugs.

results5-HTTLPR had age-dependent effects on alcohol, tobacco and drug use: substance use did not differ by genotype at age 9, but at age 15, the participants with the short (s)/s genotype had higher tobacco use, and at age 18, they were more active alcohol, drug and tobacco users. Effects of ADRA2A C-1291G on drug use were dependent on gender, age and 5-HTTLPR. Males (age 18) with ADRA2A CG genotype, when compared to other participants, tended to have higher drug use especially when they had s/s genotype of 5-HTTLPR.

conclusionsOur results reveal that expression of genetic vulnerability for substance use in children and adolescents may depend on age, gender, interaction of genes, and type of substance.

Indexed as

AdolescentAge FactorsAnalysis of VarianceChildData Interpretation, StatisticalEstoniaFemaleGenotypeHumansLongitudinal StudiesMalePolymorphism, GeneticReceptors, Adrenergic, alpha-2Serotonin Plasma Membrane Transport ProteinsSex FactorsSubstance-Related DisordersADRA2A protein, humanReceptors, Adrenergic, alpha-2Serotonin Plasma Membrane Transport ProteinsSLC6A4 protein, human

Identifiers

PMID21140256
OpenAlexW2031056105

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.