Glutamatergic and GABAergic metabolite levels in schizophrenia-spectrum disorders: a meta-analysis of 1H-magnetic resonance spectroscopy studies

T Nakahara, S Tsugawa, Y Noda, F Ueno… - Molecular …, 2022 - nature.com
Abstract Background The glutamate (Glu) and gamma aminobutyric acid (GABA)
hypotheses of schizophrenia were proposed in the 1980s. However, current findings on …

Glutamate and dopamine in schizophrenia: An update for the 21st century

O Howes, R McCutcheon… - Journal of …, 2015 - journals.sagepub.com
The glutamate and dopamine hypotheses are leading theories of the pathoaetiology of
schizophrenia. Both were initially based on indirect evidence from pharmacological studies …

Nature of glutamate alterations in schizophrenia: a meta-analysis of proton magnetic resonance spectroscopy studies

K Merritt, A Egerton, MJ Kempton, MJ Taylor… - JAMA …, 2016 - jamanetwork.com
Importance Alterations in glutamatergic neurotransmission may be fundamental to the
pathophysiology of schizophrenia, and the glutamatergic system is a target for novel …

A pathophysiological framework of hippocampal dysfunction in ageing and disease

SA Small, SA Schobel, RB Buxton, MP Witter… - Nature Reviews …, 2011 - nature.com
The hippocampal formation has been implicated in a growing number of disorders, from
Alzheimer's disease and cognitive ageing to schizophrenia and depression. How can the …

Association of age, antipsychotic medication, and symptom severity in schizophrenia with proton magnetic resonance spectroscopy brain glutamate level: a mega …

K Merritt, PK McGuire, A Egerton, A Aleman… - JAMA …, 2021 - jamanetwork.com
Importance Proton magnetic resonance spectroscopy (1H-MRS) studies indicate that altered
brain glutamatergic function may be associated with the pathophysiology of schizophrenia …

Glutamate in Schizophrenia: A Focused Review and Meta-Analysis of 1H-MRS Studies

A Marsman, MP Van Den Heuvel… - Schizophrenia …, 2013 - academic.oup.com
Schizophrenia is a severe chronic psychiatric illness, characterized by hallucinations and
delusions. Decreased brain volumes have been observed in the disease, although the …

Kynurenic acid in schizophrenia: a systematic review and meta-analysis

E Plitman, Y Iwata, F Caravaggio… - Schizophrenia …, 2017 - academic.oup.com
Kynurenic acid (KYNA) is an endogenous antagonist of N-methyl-D-aspartate and α7
nicotinic acetylcholine receptors that is derived from astrocytes as part of the kynurenine …

Treatment-resistant schizophrenia patients show elevated anterior cingulate cortex glutamate compared to treatment-responsive

E Mouchlianitis, MAP Bloomfield, V Law… - Schizophrenia …, 2016 - academic.oup.com
Introduction: Resistance to antipsychotic treatment is a significant clinical problem in patients
with schizophrenia with approximately 1 in 3 showing limited or no response to repeated …

Magnetic resonance spectroscopy studies of glutamate-related abnormalities in mood disorders

C Yüksel, D Öngür - Biological psychiatry, 2010 - Elsevier
In mood disorders, there is growing evidence for glutamatergic abnormalities derived from
peripheral measures of glutamatergic metabolites in patients, postmortem studies on …

Variability and magnitude of brain glutamate levels in schizophrenia: a meta and mega-analysis

K Merritt, RA McCutcheon, A Aleman, S Ashley… - Molecular …, 2023 - nature.com
Glutamatergic dysfunction is implicated in schizophrenia pathoaetiology, but this may vary in
extent between patients. It is unclear whether inter-individual variability in glutamate is …