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Nature or Nurture? Determining the Heritability of Human Striatal Dopamine Function: an [18F]-DOPA PET Study

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Stokes, Paul R A, Shotbolt, Paul, Mehta, Mitul A, Turkheimer, Eric, Benecke, Aaf, Copeland, Caroline, Turkheimer, Federico E, Lingford-Hughes, Anne R +1 more·2013·Neuropsychopharmacology

Abstract

Striatal dopamine function is important for normal personality, cognitive processes and behavior, and abnormalities are linked to a number of neuropsychiatric disorders. However, no studies have examined the relative influence of genetic inheritance and environmental factors in determining striatal dopamine function. Using [18F]-DOPA positron emission tomography (PET), we sought to determine the heritability of presynaptic striatal dopamine function by comparing variability in uptake values in same sex monozygotic (MZ) twins to dizygotic (DZ) twins. Nine MZ and 10 DZ twin pairs underwent high-resolution [18F]-DOPA PET to assess presynaptic striatal dopamine function. Uptake values for the overall striatum and functional striatal subdivisions were determined by a Patlak analysis using a cerebellar reference region. Heritability, shared environmental effects and non-shared individual-specific effects were estimated using a region of interest (ROI) analysis and a confirmatory parametric analysis. Overall striatal heritability estimates from the ROI and parametric analyses were 0.44 and 0.33, respectively. We found a distinction between striatal heritability in the functional subdivisions, with the greatest heritability estimates occurring in the sensorimotor striatum and the greatest effect of individual-specific environmental factors in the limbic striatum. Our results indicate that variation in overall presynaptic striatal dopamine function is determined by a combination of genetic factors and individual-specific environmental factors, with familial environmental effects having no effect. These findings underline the importance of individual-specific environmental factors for striatal dopaminergic function, particularly in the limbic striatum, with implications for understanding neuropsychiatric disorders such as schizophrenia and addictions.

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  • Previous work in our laboratory found that individual-specific environmental factors, rather than genetic factors, had the greatest effect on the limbic striatum.

    “previous work in our laboratory (Stokes et al., 2013) on heritability of striatal dopamine synthesis capacity found that individual-specific environmental factors, rather than genetic factors, had the greatest effect on the limbic striatum”

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Research works printed but not linked: 3

  1. Boileau I Dagher A Leyton M Gunn RN Baker GB Diksic M Modeling sensitization to stimulants in humans: an [11C]raclopride/positron emission tomography study in healthy men Arch Gen Psychiatry 2006 63 12 1386 1395 17146013
  2. Forbes EE Brown SM Kimak M Ferrell RE Manuck SB Hariri AR Genetic variation in components of dopamine neurotransmission impacts ventral striatal reactivity associated with impulsivity Mol Psychiatry 2009 14 1 60 70 17893706 PMC2668513
  3. McGowan S Lawrence AD Sales T Quested D Grasby P Presynaptic dopaminergic dysfunction in schizophrenia: a positron emission tomographic [18F]fluorodopa study Arch Gen Psychiatry 2004 61 2 134 142 14757589

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Authors
Stokes, P. R. A., Shotbolt, P., Mehta, M. A., Turkheimer, E., Benecke, A., Copeland, C., Turkheimer, F. E., Lingford-Hughes, A. R., & Howes, O. D.
Affiliations
  • Hammersmith Hospital (GB)
  • King's College London (GB)
  • University of Virginia (US)
  • Imperial College London (GB)
Corresponding author
Stokes, Paul R A
Venue
Neuropsychopharmacology
Published
2012-10-24
Volume
38
Issue
3
Pages
485-491
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2099289869
Cited by
37
References
36
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 3 · 2020: 2 · 2019: 5 · 2018: 3 · 2017: 2 · 2016: 5 · 2015: 4 · 2014: 4 · 2013: 5
FWCI
1.71
Type
journal article
Language
en
Open access
Locations
  • Neuropsychopharmacology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion, other-oa)
Funders
Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
heritability, monozygotic twins, dizygotic twins, 18F-DOPA PET, sensorimotor striatum, limbic striatum, shared environmental effects, genetic and environmental factors, schizophrenia, addiction
MeSH terms
Adult, Corpus Striatum, Dihydroxyphenylalanine, Dopamine, Female, Humans, Male, Social Environment, Twins, Dizygotic, Twins, Monozygotic, Cohort Studies, Fluorodeoxyglucose F18, Positron-Emission Tomography

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