Evidence map›Paper›PMID 23840506›Full record

ArticlePloS one2013

Multivariate analysis of dopaminergic gene variants as risk factors of heroin dependence.

Andrea Vereczkei, Zsolt Demetrovics, Anna Szekely, Peter Sarkozy, Peter Antal, Agnes Szilagyi, Maria Sasvari-Szekely, Csaba Barta

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 76 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Genetic and Epigenetic Approaches to Opioid Use Disorder.Expert reviews in molecular medicine · 2025
    Review
  4. Biochemical Diagnosis in Substance and Non-substance Addiction.Advances in experimental medicine and biology · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. The VNTR 48 bp Polymorphism in theDiagnostics (Basel, Switzerland) · 2019
    Article
  16. Review
  17. Opioid Addiction, Genetic Susceptibility, and Medical Treatments: A Review.International journal of molecular sciences · 2019
    Review
  18. The Ankyrin Repeat and Kinase Domain Containing 1 Gene Polymorphism (International journal of environmental research and public health · 2019
    Article
  19. A review of opioid addiction genetics.Current opinion in psychology · 2019
    Review
  20. Review
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 at 3 institutions in 1 country.

Andrea VereczkeiDepartment of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary.
Zsolt Demetrovics
Anna Szekely
Peter Sarkozy
Peter Antal
Agnes Szilagyi
Maria Sasvari-Szekely
Csaba Barta
Semmelweis University · HUBudapest Institute · HUEötvös Loránd University · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHeroin dependence is a debilitating psychiatric disorder with complex inheritance. Since the dopaminergic system has a key role in rewarding mechanism of the brain, which is directly or indirectly targeted by most drugs of abuse, we focus on the effects and interactions among dopaminergic gene variants.

objectiveTo study the potential association between allelic variants of dopamine D2 receptor (DRD2), ANKK1 (ankyrin repeat and kinase domain containing 1), dopamine D4 receptor (DRD4), catechol-O-methyl transferase (COMT) and dopamine transporter (SLC6A3) genes and heroin dependence in Hungarian patients.

methods303 heroin dependent subjects and 555 healthy controls were genotyped for 7 single nucleotide polymorphisms (SNPs) rs4680 of the COMT gene; rs1079597 and rs1800498 of the DRD2 gene; rs1800497 of the ANKK1 gene; rs1800955, rs936462 and rs747302 of the DRD4 gene. Four variable number of tandem repeats (VNTRs) were also genotyped: 120 bp duplication and 48 bp VNTR in exon 3 of DRD4 and 40 bp VNTR and intron 8 VNTR of SLC6A3. We also perform a multivariate analysis of associations using Bayesian networks in Bayesian multilevel analysis (BN-BMLA). FINDINGS AND

conclusionsIn single marker analysis the TaqIA (rs1800497) and TaqIB (rs1079597) variants were associated with heroin dependence. Moreover, -521 C/T SNP (rs1800955) of the DRD4 gene showed nominal association with a possible protective effect of the C allele. After applying the Bonferroni correction TaqIB was still significant suggesting that the minor (A) allele of the TaqIB SNP is a risk component in the genetic background of heroin dependence. The findings of the additional multiple marker analysis are consistent with the results of the single marker analysis, but this method was able to reveal an indirect effect of a promoter polymorphism (rs936462) of the DRD4 gene and this effect is mediated through the -521 C/T (rs1800955) polymorphism in the promoter.

Indexed as

Polymorphism, Single NucleotideAdolescentAdultAgedBayes TheoremCase-Control StudiesCatechol O-MethyltransferaseDopamine Plasma Membrane Transport ProteinsFemaleGenetic Association StudiesGenetic Predisposition to DiseaseHaplotypesHeroin DependenceHumansLinkage DisequilibriumMaleANKK1 protein, humanCatechol O-MethyltransferaseDopamine Plasma Membrane Transport ProteinsDRD2 protein, humanDRD4 protein, humanProtein Serine-Threonine KinasesReceptors, Dopamine D2Receptors, Dopamine D4SLC6A3 protein, human

Identifiers

PMID23840506
PMCPMC3696122
OpenAlexW2107343337

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.