Brain connectomes in youth at risk for serious mental illness : an exploratory analysis

© 2022. The Author(s)..

BACKGROUND: Identifying early biomarkers of serious mental illness (SMI)-such as changes in brain structure and function-can aid in early diagnosis and treatment. Whole brain structural and functional connectomes were investigated in youth at risk for SMI.

METHODS: Participants were classified as healthy controls (HC; n = 33), familial risk for serious mental illness (stage 0; n = 31), mild symptoms (stage 1a; n = 37), attenuated syndromes (stage 1b; n = 61), or discrete disorder (transition; n = 9) based on clinical assessments. Imaging data was collected from two sites. Graph-theory based analysis was performed on the connectivity matrix constructed from whole-brain white matter fibers derived from constrained spherical deconvolution of the diffusion tensor imaging (DTI) scans, and from the correlations between brain regions measured with resting state functional magnetic resonance imaging (fMRI) data.

RESULTS: Linear mixed effects analysis and analysis of covariance revealed no significant differences between groups in global or nodal metrics after correction for multiple comparisons. A follow up machine learning analysis broadly supported the findings. Several non-overlapping frontal and temporal network differences were identified in the structural and functional connectomes before corrections.

CONCLUSIONS: Results suggest significant brain connectome changes in youth at transdiagnostic risk may not be evident before illness onset.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:22

Enthalten in:

BMC psychiatry - 22(2022), 1 vom: 15. Sept., Seite 611

Sprache:

Englisch

Beteiligte Personen:

Metzak, Paul D [VerfasserIn]
Shakeel, Mohammed K [VerfasserIn]
Long, Xiangyu [VerfasserIn]
Lasby, Mike [VerfasserIn]
Souza, Roberto [VerfasserIn]
Bray, Signe [VerfasserIn]
Goldstein, Benjamin I [VerfasserIn]
MacQueen, Glenda [VerfasserIn]
Wang, JianLi [VerfasserIn]
Kennedy, Sidney H [VerfasserIn]
Addington, Jean [VerfasserIn]
Lebel, Catherine [VerfasserIn]

Links:

Volltext

Themen:

Connectome
Constrained spherical deconvolution
Functional connectivity
Journal Article
Linear support vector machine
Major depressive disorder
PROCAN
Research Support, Non-U.S. Gov't
Resting-state fMRI
Structural connectivity
Transdiagnostic risk

Anmerkungen:

Date Completed 19.09.2022

Date Revised 01.10.2022

published: Electronic

Citation Status MEDLINE

doi:

10.1186/s12888-022-04118-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346264731