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Study M963

Study name

Spurny-Dworak B 2022

Title

The impact of theta-burst stimulation on cortical GABA and glutamate in treatment-resistant depression: a surface-based MRSI analysis approach

Overall design

The aim of this study was to expand insights into the therapeutic effects of theta burst stimulation on the GABAergic and glutamatergic system utilizing 3D-multivoxel magnetic resonance spectroscopy imaging (MRSI) in combination with a novel surface-based MRSI analysis approach to investigate changes of cortical neurotransmitter levels in patients with treatment-resistant depression. Twelve treatment-resistant depression patients completed paired MRSI measurements, using a GABA-edited 3D-multivoxel MEGA-LASER sequence, before and after 3 weeks of bilateral theta burst stimulation treatment. Changes in cortical distributions of GABA+/tNAA (GABA+macromolecules relative to total Nacetylaspartate) and Glx/tNAA (Glx = mixed signal of glutamate and glutamine), were investigated in a surface-based region-of-interest (ROI) analysis approach.

Study Type

Type2;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Treatment-resistant depression; Treatment-resistant depression;

Criteria for depression

DSM-IV diagnosed MDD, HAMD-17 >= 18, Clinical Global Impression Scale score >= 4

Sample size

12

Tissue

Central; Brain; Cortex;

Platform

MRS; MRS: 3 Tesla MAGNETOM Prisma Siemens MR Scanner;

PMID

35909445

DOI

10.3389/fnmol.2022.913274

Citation

Spurny-Dworak B, Godbersen GM, Reed MB, et al. The impact of theta-burst stimulation on cortical GABA and glutamate in treatment-resistant depression: a surface-based MRSI analysis approach. Front Mol Neurosci. 2022 Jul 13;15:913274.

Metabolite

(Glutamate and Glutamine)/N-Acetyl aspartate ratio;