Schizotypy, attention deficit hyperactivity disorder, and dopamine genes
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Abstract Previous research has suggested that there may be overlap between schizophrenia and attention‐deficit hyperactivity disorder (ADHD). The relationship between schizotypal personality traits, ADHD features and polymorphisms was evaluated in dopamine‐related genes. Thirty‐one healthy, Caucasian men completed the Rust Inventory of Schizotypal Cognitions (RISC) and the ADHD Self‐Report Scale (ASRS). Catechol‐O‐methyltransferase (COMT) Val158Met, dopamine receptors of the D3 type (DRD3) Ser9Gly, DRD4 variable number of tandem repeats (VNTR), and SLC6A3 VNTR polymorphisms were analyzed. RISC score was correlated with ASRS score (r = 0.54, P = 0.003). COMT Met homozygotes had higher ASRS scores than Val homozygotes (P = 0.005). These findings are consistent with evidence of overlap between schizophrenia and ADHD and support an involvement of COMT genotype in ADHD features.
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Met has been associated with ADHD inattention and hyperactivity-impulsivity symptoms in adult community samples.
“Moreover, Met has been associated with ADHD inattention and hyperactivity-impulsivity symptoms in adult community samples (Ettinger et al, 2006; Gothelf et al, 2007; Michaelovsky et al, 2008; Reuter et al, 2006).”
From DAT1 and COMT effects on delay discounting and trait impulsivity in male adolescents with attention deficit/hyperactivity disorder and healthy controls (2010) · cites this paper as Ettinger et al, 2006
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- Authors
- ETTINGER, U., JOOBER, R., DE GUZMAN, R., & O’DRISCOLL, G. A.
- Affiliations
- King's College London (GB)
- Douglas Mental Health University Institute (CA)
- Corresponding author
- ETTINGER, ULRICH
- Venue
- Psychiatry and Clinical Neurosciences
- Publisher
- Wiley
- Published
- 2006-11-15
- Volume
- 60
- Issue
- 6
- Pages
- 764-767
- ISSN
- 1323-1316 (ISSN-L)
- 1440-1819
- OpenAlex
- W2031639875
- Cited by
- 32
- References
- 20
- Citations by year
- 2026: 1 · 2024: 1 · 2021: 1 · 2019: 3 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 3 · 2014: 4 · 2013: 2 · 2012: 2
- FWCI
- 1.27
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Psychiatry and Clinical Neurosciences (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Economic and Social Research Council (PTA-037-27-0002)
- Topics
- Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
- Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- schizotypy, attention deficit hyperactivity disorder, dopamine genes, COMT Val158Met polymorphism, schizophrenia, schizotypal personality traits, catechol-O-methyltransferase
- MeSH terms
- Adult, Alleles, Attention Deficit Disorder with Hyperactivity, Catechol O-Methyltransferase, Cognition, DNA, Dopamine, Gene Frequency, Genotype, Humans, Male, Polymorphism, Genetic, Psychiatric Status Rating Scales, Surveys and Questionnaires, Schizotypal Personality Disorder, Dopamine Plasma Membrane Transport Proteins, Receptors, Dopamine D3, Receptors, Dopamine D4
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