Single episode brief psychotic disorder versus bipolar disorder: A diffusion tensor imaging and executive functions study.
Bipolar disorder
Brief psychotic disorder
Diffusion tensor imaging
Executive functions
Single episode
Journal
Schizophrenia research. Cognition
ISSN: 2215-0013
Titre abrégé: Schizophr Res Cogn
Pays: United States
ID NLM: 101632223
Informations de publication
Date de publication:
Mar 2022
Mar 2022
Historique:
received:
07
06
2021
revised:
21
08
2021
accepted:
23
08
2021
entrez:
24
9
2021
pubmed:
25
9
2021
medline:
25
9
2021
Statut:
epublish
Résumé
Despite fast progress in neuroscientific approaches, the neurobiological continuum links psychotic spectrum, and affective disorder is obscure. White matter WM abnormalities found utilizing Diffusion Tensor Imaging (DTI) showing impaired communication in both disorders have been consistently demonstrated; however, direct comparisons of findings between them are scarce. This study aims to study WM abnormalities in single episode bipolar I disorder, and single episode brief psychotic disorder related to healthy control with the association of executive function. A cross-sectional case-control study was used to assess 60 subjects divided into 20 patients with single episode bipolar I disorder, 20 individuals with single episode brief psychotic disorder (both groups of patients were in remission), and 20 healthy controls. The present study examined the superior longitudinal fasciculus (SLF), and cingulum bundle fractional anisotropy (FA) determined from DTI images symmetrically and connected these results with cognitive functions as assessed by the trail making test (TMT) and Wisconsin card sorting test (WCST). DTI data indicated that the psychotic group had a significant decrease in FA of the right SLF (p-value less than 0.001), left SLF (p-value less than 0.001), and left cingulum (p-value less than 0.001) than the bipolar I group. In terms of executive functioning, the psychotic group performed significantly worse than the bipolar I group on the TMT part B (p-value less than 0.001), the WCST (number of classifications fulfilled) (p-value less than 0.001), and perseverative errors (p-value less than 0.001). Even after clinical remission, individuals with single episode brief psychotic disorder had more pronounced white matter impairments and executive function deficiencies than individuals with single episode bipolar I disorder.
Sections du résumé
BACKGROUND
BACKGROUND
Despite fast progress in neuroscientific approaches, the neurobiological continuum links psychotic spectrum, and affective disorder is obscure. White matter WM abnormalities found utilizing Diffusion Tensor Imaging (DTI) showing impaired communication in both disorders have been consistently demonstrated; however, direct comparisons of findings between them are scarce. This study aims to study WM abnormalities in single episode bipolar I disorder, and single episode brief psychotic disorder related to healthy control with the association of executive function.
METHODS
METHODS
A cross-sectional case-control study was used to assess 60 subjects divided into 20 patients with single episode bipolar I disorder, 20 individuals with single episode brief psychotic disorder (both groups of patients were in remission), and 20 healthy controls. The present study examined the superior longitudinal fasciculus (SLF), and cingulum bundle fractional anisotropy (FA) determined from DTI images symmetrically and connected these results with cognitive functions as assessed by the trail making test (TMT) and Wisconsin card sorting test (WCST).
RESULTS
RESULTS
DTI data indicated that the psychotic group had a significant decrease in FA of the right SLF (p-value less than 0.001), left SLF (p-value less than 0.001), and left cingulum (p-value less than 0.001) than the bipolar I group. In terms of executive functioning, the psychotic group performed significantly worse than the bipolar I group on the TMT part B (p-value less than 0.001), the WCST (number of classifications fulfilled) (p-value less than 0.001), and perseverative errors (p-value less than 0.001).
CONCLUSION
CONCLUSIONS
Even after clinical remission, individuals with single episode brief psychotic disorder had more pronounced white matter impairments and executive function deficiencies than individuals with single episode bipolar I disorder.
Identifiants
pubmed: 34557386
doi: 10.1016/j.scog.2021.100214
pii: S2215-0013(21)00021-4
pmc: PMC8446778
doi:
Types de publication
Journal Article
Review
Langues
eng
Pagination
100214Informations de copyright
© 2021 The Authors.
Déclaration de conflit d'intérêts
The authors declare that research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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