Decreased Relative Cerebral Blood Flow in Unmedicated Heroin-Dependent Individuals.
arterial spin labeling
heroin addiction
magnetic resonance perfusion imaging
neurocognitive
reward circuits
Journal
Frontiers in psychiatry
ISSN: 1664-0640
Titre abrégé: Front Psychiatry
Pays: Switzerland
ID NLM: 101545006
Informations de publication
Date de publication:
2020
2020
Historique:
received:
20
12
2019
accepted:
19
06
2020
entrez:
8
8
2020
pubmed:
8
8
2020
medline:
8
8
2020
Statut:
epublish
Résumé
Understanding the brain mechanisms of heroin dependence is invaluable for developing effective treatment. Measurement of regional cerebral blood flow (CBF) provides a method to visualize brain circuits that are functionally impaired by heroin dependence. This study examined regional CBF alterations and their clinical associations in unmedicated heroin-dependent individuals (HDIs) using a relatively large sample. Sixty-eight (42 males, 26 females; age: 40.9 ± 7.3 years) HDIs and forty-seven (34 males, 13 females; age: 39.3 ± 9.2 years) matched healthy controls (HCs) underwent high-resolution T1 and whole-brain arterial spin labeling (ASL) perfusion magnetic resonance imaging (MRI) scans. Additionally, clinical characteristics were collected for neurocognitive assessments. HDIs showed worse neuropsychological performance than HCs and had decreased relative CBF (rCBF) in the bilateral middle frontal gyrus (MFG), inferior temporal gyrus, precuneus, posterior cerebellar lobe, cerebellar vermis, and the midbrain adjacent to the ventral tegmental area; right posterior cingulate gyrus, thalamus, and calcarine. rCBF in the bilateral MFG was negatively correlated with Trail Making Test time in HDIs. HDIs had limbic, frontal, and parietal hypoperfusion areas. Low CBF in the MFG indicated cognitive impairment in HDIs. Together, these findings suggest the MFG as a critical region in HDIs and suggest ASL-derived CBF as a potential marker for use in heroin addiction studies.
Identifiants
pubmed: 32760297
doi: 10.3389/fpsyt.2020.00643
pmc: PMC7372972
doi:
Types de publication
Journal Article
Langues
eng
Pagination
643Informations de copyright
Copyright © 2020 Yang, Yang, Tang, Luo, Zhang, Chen, Duan, Deng, Fan and Liu.
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