Cited by 97Obsessive-Compulsive Spectrum DisordersNeurotransmitter Receptor Influence on BehaviorGenetic Associations and Epidemiology

Tourette syndrome and dopaminergic genes: a family-based association study in the French Canadian founder population

Díaz-Anzaldúa, A, Joober, R, Rivière, J-B, Dion, Y, Lespérance, P, Richer, F, Chouinard, S, Rouleau, G A +1 more·2004·Molecular Psychiatry

Abstract

Tourette syndrome (TS) is a genetically complex disorder for which no causative genes have been unequivocally identified. Nevertheless, a number of molecular genetic studies have investigated several candidate genes, particularly those implicated in dopamine modulation. The results of these studies were inconclusive, which may be due, at least in part, to the variable ethnicity of the patients included in different studies and the chosen research design. In this study, we used a family-based association approach to investigate the implication of dopamine-related candidate genes, which had been previously reported as possibly associated with TS [genes that encode for the dopamine receptors DRD2, DRD3 and DRD4, the dopamine transporter 1 (SLC6A3) and the monoamine oxidase-A (MAO-A). The studied group was composed of 110 TS patients. These patients were selected from the French Canadian population, which displays a founder effect. Excess transmission of the 7-repeat allele of the DRD4 exon-3 VNTR polymorphism (chi(2) TDT =4.93, 1 df, P=0.026) and the putative 'high-activity' alleles of the MAO-A promoter VNTR polymorphism (chi(2) TDT =7.124, 1 df P=0.0076) were observed. These results were confirmed in a subgroup of patients with no attention deficit/hyperactivity or obsessive compulsive comorbid disorders. Haplotype analysis using one or two supplemental polymorphism in each of these genes confirmed these associations and allowed one to identify risk haplotypes. No associations were found for DRD2, DRD3 or SLC6A3. These data support the notion that DRD4 and MOA-A genes may confer an increased risk for developing TS in the French Canadian population.

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Crossref · 10.1038/sj.mp.4001411

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Authors
Díaz-Anzaldúa, A., Joober, R., Rivière, J.-B., Dion, Y., Lespérance, P., Richer, F., Chouinard, S., Rouleau, G. A., & and the Montreal Tourette Syndrome Study Group
Affiliations
  • Douglas Mental Health University Institute (CA)
  • McGill University Health Centre (CA)
  • Centre Hospitalier de l’Université de Montréal (CA)
  • Centre Hospitalier Universitaire Sainte-Justine (CA)
Corresponding author
Rouleau, G A
Venue
Molecular Psychiatry
Published
2004-03-01
Volume
9
Issue
3
Pages
272-277
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W2031134758
Cited by
97
References
36
Citations by year
2026: 3 · 2025: 1 · 2024: 5 · 2022: 8 · 2021: 2 · 2019: 4 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 6 · 2014: 7 · 2013: 9 · 2012: 7
FWCI
6.39
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Yale University
Topics
  • Social Sciences › Psychology › Clinical Psychology › Obsessive-Compulsive Spectrum Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
Tourette syndrome, dopaminergic genes, family-based association, dopamine receptors, dopamine transporter, founder effect, French-Canadian population, haplotype analysis, risk haplotype, ADHD comorbidity, obsessive-compulsive disorder comorbidity
MeSH terms
Carrier Proteins, Dopamine, Exons, Family, Female, Genotype, Tourette Syndrome, Humans, Male, Membrane Glycoproteins, Nerve Tissue Proteins, Polymorphism, Genetic, Quebec, Receptors, Dopamine D2, Minisatellite Repeats, Membrane Transport Proteins, Serotonin Plasma Membrane Transport Proteins, Receptors, Dopamine D3, Receptors, Dopamine D4

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