PMID- 38244791 OWN - NLM STAT- MEDLINE DCOM- 20240228 LR - 20240228 IS - 1573-2517 (Electronic) IS - 0165-0327 (Linking) VI - 351 DP - 2024 Apr 15 TI - The impact of matching for reproductive status on the comparison of magnetic spectroscopic measurements of glutamate and gamma-aminobutyric acid + in the medial prefrontal cortex of women with major depression. PG - 396-402 LID - S0165-0327(24)00155-1 [pii] LID - 10.1016/j.jad.2024.01.140 [doi] AB - OBJECTIVES: The role played by medial prefrontal cortex (MPFC) glutamate (Glu) and gamma-aminobutyric acid (GABA) in the pathophysiology and the treatment of major depression (MD) is increasingly recognized. Although measurements of MPFC GABA and Glu have been shown to be sensitive to physiological fluctuations of female hormones, none of the magnetic resonance spectroscopy (MRS) investigations of MPFC Glu and GABA in MD have controlled for possible bias effect of the reproductive stage of the women included. METHODS: MPFC Glu and GABA+ (which include homocarnosine and macromolecules) referenced to creatine and phosphocreatine, were measured via magnetic resonance spectroscopy (MRS) using a 3-Tesla magnet in 24 women with MD and 24 healthy women paired for reproductive status. All participants were unmedicated. RESULTS: There were no statistical differences in either MPFC Glu [95 % CI: (-0.025, 0.034)] or MPFC GABA+ [95 % CI: (-0.005, 0.017)] between women with MD and healthy controls. CONCLUSIONS: Our investigation does not support abnormalities in measurement of MPFC Glu and GABA in MD women when stringent control for reproductive status is performed. As a result of the inherent limitations of MRS methodology, our results do not preclude glutamatergic and GABAergic dysregulations in the MPFC of women with MD. CI - Copyright (c) 2024. Published by Elsevier B.V. FAU - Tran, Kim H AU - Tran KH AD - University of Alberta, Department of Psychiatry, Edmonton, AB, Canada. FAU - Luki, Jessica AU - Luki J AD - University of Alberta, Department of Psychiatry, Edmonton, AB, Canada. FAU - Hanstock, Sarah AU - Hanstock S AD - University of Alberta, Department of Psychiatry, Edmonton, AB, Canada. FAU - Hanstock, Christopher C AU - Hanstock CC AD - University of Alberta, Department of Biomedical Engineering, Edmonton, AB, Canada. FAU - Seres, Peter AU - Seres P AD - University of Alberta, Department of Biomedical Engineering, Edmonton, AB, Canada. FAU - Aitchison, Katherine AU - Aitchison K AD - University of Alberta, Department of Psychiatry, Edmonton, AB, Canada; University of Alberta, Department of Medical Genetics, Edmonton, AB, Canada; University of Alberta, Neuroscience and Mental Health Institute, Edmonton, AB, Canada; University of Alberta, Women and Children's Research Institute, Edmonton, AB, Canada; Northern Ontario School of Medicine, Division of Clinical Sciences, Psychiatry Section, Thunder Bay, ON, Canada. FAU - Shandro, Tami AU - Shandro T AD - Lois Hole Hospital for Women, Royal Alexandra Hospital, Edmonton, AB, Canada. FAU - Le Melledo, Jean-Michel AU - Le Melledo JM AD - University of Alberta, Department of Psychiatry, Edmonton, AB, Canada. Electronic address: jlemelle@ualberta.ca. LA - eng PT - Journal Article DEP - 20240119 PL - Netherlands TA - J Affect Disord JT - Journal of affective disorders JID - 7906073 RN - 3KX376GY7L (Glutamic Acid) RN - 56-12-2 (gamma-Aminobutyric Acid) SB - IM MH - Female MH - Humans MH - *Glutamic Acid MH - *Depressive Disorder, Major/drug therapy MH - Depression MH - Prefrontal Cortex/diagnostic imaging MH - gamma-Aminobutyric Acid OTO - NOTNLM OT - Depression OT - GABA OT - Glutamate OT - Magnetic resonance spectroscopy OT - Medial prefrontal cortex COIS- Declaration of competing interest All other authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2024/01/21 00:42 MHDA- 2024/02/28 06:44 CRDT- 2024/01/20 19:17 PHST- 2023/06/26 00:00 [received] PHST- 2024/01/08 00:00 [revised] PHST- 2024/01/14 00:00 [accepted] PHST- 2024/02/28 06:44 [medline] PHST- 2024/01/21 00:42 [pubmed] PHST- 2024/01/20 19:17 [entrez] AID - S0165-0327(24)00155-1 [pii] AID - 10.1016/j.jad.2024.01.140 [doi] PST - ppublish SO - J Affect Disord. 2024 Apr 15;351:396-402. doi: 10.1016/j.jad.2024.01.140. Epub 2024 Jan 19.