Dopamine release during psychological stress in euthymic bipolar I disorder: a Positron Emission Tomography study with [
Bipolar disorder
Dopamine
Functional neuroimaging
Neurobiology
Positron emission tomography
Journal
Journal of affective disorders
ISSN: 1573-2517
Titre abrégé: J Affect Disord
Pays: Netherlands
ID NLM: 7906073
Informations de publication
Date de publication:
01 12 2021
01 12 2021
Historique:
received:
06
07
2021
revised:
08
08
2021
accepted:
18
08
2021
pubmed:
14
9
2021
medline:
3
11
2021
entrez:
13
9
2021
Statut:
ppublish
Résumé
Neurochemical mechanisms underlying stress induced relapse of mood episodes in Bipolar I Disorder (BD) remain unknown. This study investigated whether euthymic BD patients have a greater dopamine release in ventral striatum, caudate and putamen in response to psychological stress using Positron Emission Tomography (PET) scanning with the radiotracer [ Euthymic patients with BD (n = 10) and 10 matched healthy controls underwent two [ There was a significant effect of stress in reducing the [ Small sample size and recruitment of euthymic patients who may be less vulnerable to stress may limit the generalizability of findings. Our findings showed that psychological stress led to dopamine release in the basal ganglia for all participants but the magnitude of dopamine release during a stress task was not different between euthymic BD patients and healthy controls.
Sections du résumé
BACKGROUND
Neurochemical mechanisms underlying stress induced relapse of mood episodes in Bipolar I Disorder (BD) remain unknown. This study investigated whether euthymic BD patients have a greater dopamine release in ventral striatum, caudate and putamen in response to psychological stress using Positron Emission Tomography (PET) scanning with the radiotracer [
METHODS
Euthymic patients with BD (n = 10) and 10 matched healthy controls underwent two [
RESULTS
There was a significant effect of stress in reducing the [
LIMITATIONS
Small sample size and recruitment of euthymic patients who may be less vulnerable to stress may limit the generalizability of findings.
CONCLUSIONS
Our findings showed that psychological stress led to dopamine release in the basal ganglia for all participants but the magnitude of dopamine release during a stress task was not different between euthymic BD patients and healthy controls.
Identifiants
pubmed: 34517246
pii: S0165-0327(21)00820-X
doi: 10.1016/j.jad.2021.08.022
pii:
doi:
Substances chimiques
Raclopride
430K3SOZ7G
Dopamine
VTD58H1Z2X
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
724-732Informations de copyright
Copyright © 2021. Published by Elsevier B.V.