Cited by 97Neuroendocrine regulation and behaviorNeurotransmitter Receptor Influence on BehaviorStress Responses and Cortisol

Oxytocin Gene Polymorphisms Influence Human Dopaminergic Function in a Sex-Dependent Manner

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Love, Tiffany M., Enoch, Mary-Anne, Hodgkinson, Colin A., Peciña, Marta, Mickey, Brian, Koeppe, Robert A., Stohler, Christian S., Goldman, David +1 more·2012·Biological Psychiatry

Abstract

Background Oxytocin, classically involved in social and reproductive activities, is increasingly recognized as an antinociceptive and anxiolytic agent, effects which may be mediated via oxytocin's interactions with the dopamine system. Thus, genetic variation within the oxytocin gene (OXT) is likely to explain variability in dopamine-related stress responses. As such, we examined how OXT variation is associated with stress-induced dopaminergic neurotransmission in a healthy human sample.Methods Fifty-five young healthy volunteers were scanned using [¹¹C]raclopride positron emission tomography while they underwent a standardized physical and emotional stressor that consisted of moderate levels of experimental sustained deep muscle pain, and a baseline, control state. Four haplotype tagging single nucleotide polymorphisms located in regions near OXT were genotyped. Measures of pain, affect, anxiety, well-being and interpersonal attachment were also assessed.Results Female rs4813625 C allele carriers demonstrated greater stress-induced dopamine release, measured as reductions in receptor availability from baseline to the pain-stress condition relative to female GG homozygotes. No significant differences were detected among males. We also observed that female rs4813625 C allele carriers exhibited higher attachment anxiety, higher trait anxiety and lower emotional well-being scores. In addition, greater stress-induced dopamine release was associated with lower emotional well-being scores in female rs4813625 C allele carriers.Conclusions Our results suggest that variability within the oxytocin gene appear to explain interindividual differences in dopaminergic responses to stress, which are shown to be associated with anxiety traits, including those linked to attachment style, as well as emotional well-being in women.

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Crossref · 10.1016/j.biopsych.2012.01.033

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  • Genetic variation in oxytocin influences dopamine signaling in brain reward centers.

    “Genetic variability in OXT influences DA signaling in brain reward centers (15)”

    From Oxytocin enhances brain reward system responses in men viewing the face of their female partner (2013) · cites this paper as [15]

    The Results (Stress-Induced Activation of DA Neurotransmission; page unavailable) link OXT genotype to dopamine responses, and the Discussion locates the association in the right ventromedial caudate. The citing sentence omits important limits: the observed association was during a pain-stress challenge and was significant in female participants, not males. (LLM, conf=0.85)

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  1. [45]Spielberger C 1983 State-Trait Anxiety Inventory (Form Y) Palo Alto, CA Consulting Psychologists Press

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Authors
Love, T. M., Enoch, M.-A., Hodgkinson, C. A., Peciña, M., Mickey, B., Koeppe, R. A., Stohler, C. S., Goldman, D., & Zubieta, J.-K.
Affiliations
  • University of Michigan (US)
  • National Institutes of Health (US)
  • University of Maryland, Baltimore (US)
Corresponding author
Love, Tiffany M.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2012-08
Volume
72
Issue
3
Pages
198-206
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2078940490
Cited by
97
References
101
Citations by year
2026: 1 · 2025: 1 · 2024: 6 · 2023: 3 · 2022: 6 · 2021: 5 · 2020: 3 · 2019: 6 · 2018: 5 · 2017: 9 · 2016: 11 · 2015: 12 · 2014: 12 · 2013: 13 · 2012: 4
FWCI
19.78
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Drug Abuse (R01 DA016423, R01 DA022520)
  • National Institute on Alcohol Abuse and Alcoholism
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
oxytocin gene, dopamine release, stress response, sex differences, pain stress, attachment anxiety, trait anxiety, emotional well-being, [11C]raclopride PET, dopamine signaling
MeSH terms
Adult, Alleles, Anxiety, Dopamine, Emotions, Female, Genotype, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Synaptic Transmission, Object Attachment, Oxytocin, Pain, Polymorphism, Genetic, Sex Characteristics, Stress, Psychological, Linkage Disequilibrium, Receptors, Dopamine D2, Polymorphism, Single Nucleotide, Positron-Emission Tomography, Receptors, Dopamine D3

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