Skip to main content

Study M656

Study name

Streeter CC 2020

Title

Thalamic gamma aminobutyric acid level changes in major depressive disorder after a 12-week Iyengar yoga and coherent breathing intervention

Overall design

The aim of this study was to determine if a 12-week yoga intervention was associated with increased gamma aminobutyric acid (GABA) levels and decreased depressive symptoms in participants with major depressive disorder (MDD). Subjects were randomized to a high-dose group (HDG) of three yoga interventions a week and a low-dose group (LDG) of two yoga interventions a week. Thalamic GABA levels were obtained using magnetic resonance spectroscopy at Scan-1 before randomization. After the assigned 12-week intervention, Scan-2 was obtained, immediately followed by a yoga intervention and Scan-3. Beck Depression Inventory II (BDI-II) scores were obtained before Scan-1 and Scan-3. Metabolite quantification was reported relative to total creatine as the reference peak.

Study Type

Type2;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

DSM-IV diagnosed MDD, BDI-II >= 14 to < 28

Sample size

28

Tissue

Central; Brain; Thalamus;

Platform

MRS; MRS: 4.0-Tesla Varian Unity/INOVA whole-body MRI/MRS scanner (Varian, Inc., Palo Alto, CA);

PMID

31934793

DOI

10.1089/acm.2019.0234

Citation

Streeter CC, Gerbarg PL, Brown RP, et al. Thalamic gamma aminobutyric acid level changes in major depressive disorder after a 12-week Iyengar yoga and coherent breathing intervention. J Altern Complement Med. 2020;26(3):190-197.

Metabolite

GABA/(Creatine and Phosphocreatine) ratio;