Connectome-Based Patterns of First-Episode Medication-Naïve Patients With Schizophrenia.
Details
Serval ID
serval:BIB_EAC085F30421
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Connectome-Based Patterns of First-Episode Medication-Naïve Patients With Schizophrenia.
Journal
Schizophrenia bulletin
ISSN
1745-1701 (Electronic)
ISSN-L
0586-7614
Publication state
Published
Issued date
24/10/2019
Peer-reviewed
Oui
Volume
45
Number
6
Pages
1291-1299
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Abstract
Emerging evidence indicates that a disruption in brain network organization may play an important role in the pathophysiology of schizophrenia. The neuroimaging fingerprint reflecting the pathophysiology of first-episode schizophrenia remains to be identified. Here, we aimed at characterizing the connectome organization of first-episode medication-naïve patients with schizophrenia. A cross-sectional structural and functional neuroimaging study using two independent samples (principal dataset including 42 medication-naïve, previously untreated patients and 48 healthy controls; replication dataset including 39 first-episode patients [10 untreated patients] and 66 healthy controls) was performed. Brain network architecture was assessed by means of white matter fiber integrity measures derived from diffusion-weighted imaging (DWI) and by means of structural-functional (SC-FC) coupling measured by combining DWI and resting-state functional magnetic resonance imaging. Connectome rich club organization was found to be significantly disrupted in medication-naïve patients as compared with healthy controls (P = .012, uncorrected), with rich club connection strength (P = .032, uncorrected) and SC-FC coupling (P < .001, corrected for false discovery rate) decreased in patients. Similar results were found in the replication dataset. Our findings suggest that a disruption of rich club organization and functional dynamics may reflect an early feature of schizophrenia pathophysiology. These findings add to our understanding of the neuropathological mechanisms of schizophrenia and provide new insights into the early stages of the disorder.
Keywords
Adolescent, Adult, Antipsychotic Agents/therapeutic use, Brain/diagnostic imaging, Brain/physiopathology, Case-Control Studies, Connectome, Diffusion Magnetic Resonance Imaging, Female, Functional Neuroimaging, Humans, Magnetic Resonance Imaging, Male, Neural Pathways/diagnostic imaging, Neural Pathways/physiopathology, Schizophrenia/diagnostic imaging, Schizophrenia/drug therapy, Schizophrenia/physiopathology, Young Adult, MRI, first-episode, human conne ctome, rich club, schizophrenia
Pubmed
Web of science
Open Access
Yes
Create date
13/07/2023 13:32
Last modification date
30/12/2023 7:07