Quantitative MRI at 7-Tesla reveals novel frontocortical myeloarchitecture anomalies in major depressive disorder

Autor: Jurjen Heij, Wietske van der Zwaag, Tomas Knapen, Matthan W. A. Caan, Birte Forstman, Dick J. Veltman, Guido van Wingen, Moji Aghajani
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Translational Psychiatry, Vol 14, Iss 1, Pp 1-9 (2024)
Druh dokumentu: article
ISSN: 2158-3188
DOI: 10.1038/s41398-024-02976-y
Popis: Abstract Whereas meta-analytical data highlight abnormal frontocortical macrostructure (thickness/surface area/volume) in Major Depressive Disorder (MDD), the underlying microstructural processes remain uncharted, due to the use of conventional MRI scanners and acquisition techniques. We uniquely combined Ultra-High Field MRI at 7.0 Tesla with Quantitative Imaging to map intracortical myelin (proxied by longitudinal relaxation time T1) and iron concentration (proxied by transverse relaxation time T2*), microstructural processes deemed particularly germane to cortical macrostructure. Informed by meta-analytical evidence, we focused specifically on orbitofrontal and rostral anterior cingulate cortices among adult MDD patients (N = 48) and matched healthy controls (HC; N = 10). Analyses probed the association of MDD diagnosis and clinical profile (severity, medication use, comorbid anxiety disorders, childhood trauma) with aforementioned microstructural properties. MDD diagnosis (p’s
Databáze: Directory of Open Access Journals