ArticleBiological psychiatry2018
In Vivo Brain Glycine and Glutamate Concentrations in Patients With First-Episode Psychosis Measured by Echo Time-Averaged Proton Magnetic Resonance Spectroscopy at 4T.
Article in Biological psychiatry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 6 of them syntheses that pooled it.
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Who cites it
25 citing papers in PubMed, 6 syntheses or guidelines pooled it, 47 citations in OpenAlex.
- Meta-analysis and open-source database for in vivo brain Magnetic Resonance spectroscopy in health and disease.Analytical biochemistry · 2023Pooled it
- Variability and magnitude of brain glutamate levels in schizophrenia: a meta and mega-analysis.Molecular psychiatry · 2023Pooled it
- Glutamatergic and N-Acetylaspartate Metabolites in Bipolar Disorder: A Systematic Review and Meta-Analysis of Proton Magnetic Resonance Spectroscopy Studies.International journal of molecular sciences · 2022Pooled it
- Rational and Translational Implications of D-Amino Acids for Treatment-Resistant Schizophrenia: From Neurobiology to the Clinics.Biomolecules · 2022Pooled it
- Glutamatergic and GABAergic metabolite levels in schizophrenia-spectrum disorders: a meta-analysis ofMolecular psychiatry · 2022Pooled it
- Pooled it
- Response to initial antipsychotic treatment in first episode psychosis is related to anterior cingulate glutamate levels: a multicentreMolecular psychiatry · 2018Trial
- Multimodal associations between posterior hippocampus glutamate metabolism, visual cortex connectivity, and intrusive trauma reexperiencing symptoms.Molecular psychiatry · 2026Article
- Group Differences of Multiregion Glutamate Concentration in Clinical High Risk and Schizophrenia.The European journal of neuroscience · 2026Article
- Aging in Schizophrenia: Perspectives on Molecular Mechanisms and a Mini-review.Schizophrenia bulletin · 2026Review
- GluN2A-NMDA receptor inhibition disinhibits the prefrontal cortex, reduces forced swim immobility, and impairs sensorimotor gating.Acta pharmacologica Sinica · 2026Article
- Targeted metabolomics study on peripheral blood neurotransmitters in early-onset schizophrenia.Journal of translational medicine · 2025Article
- Multimodal evidence of mediodorsal thalamus-prefrontal circuit dysfunctions in clinical high-risk for psychosis: findings from a combined 7T fMRI, MRSI and sleep Hd-EEG study.Molecular psychiatry · 2025Article
- The relationship between cognitive function and cortical thickness in first-episode drug-naive schizophrenia patients with agitation.Frontiers in psychiatry · 2025Article
- Variations of blood D-serine and D-aspartate homeostasis track psychosis stages.Schizophrenia (Heidelberg, Germany) · 2024Article
- Magnetic Resonance Spectroscopy Studies of Brain Energy Metabolism in Schizophrenia: Progression from Prodrome to Chronic Psychosis.Current psychiatry reports · 2023Review
- Meta-analysis and Open-source Database for In Vivo Brain Magnetic Resonance Spectroscopy in Health and Disease.bioRxiv : the preprint server for biology · 2023Article
- Association of default-mode network neurotransmitters and inter-network functional connectivity in first episode psychosis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023Article
- Progress in the application of molecular imaging in psychiatric disorders.Psychoradiology · 2023Article
- Glutamate levels across deep brain structures in patients with a psychotic disorder and its relation to cognitive functioning.Journal of psychopharmacology (Oxford, England) · 2022Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundAccumulating evidence suggests the involvement of abnormal glutamateric neurotransmission and N-methyl-D-aspartate receptor hypofunction in the pathophysiology of psychotic disorders. The purpose of this study was to quantify in vivo glutamate (Glu) and glycine (Gly) levels in patients with first-episode psychosis as well as age-matched healthy control subjects with magnetic resonance spectroscopy (MRS).
methodsThe subjects were 46 patients with first-episode psychosis (20 with a schizophrenia spectrum disorder, 26 with bipolar disorder) and 50 age-matched healthy control subjects. Glu and Gly levels were measured in vivo in the anterior cingulate cortex and posterior cingulate cortex of the subjects by using the echo time-averaged proton MRS technique at 4T (i.e., modified point resolved spectroscopy sequence: 24 echo time steps with 20-ms increments). Metabolite levels were quantified using LCModel with simulated basis sets.
resultsSignificantly higher Glu and Gly levels were found in both the anterior cingulate cortex and posterior cingulate cortex of patients with first-episode psychosis as compared with healthy control subjects. Glu and Gly levels were positively correlated in patients. Patients with a schizophrenia spectrum disorder and bipolar disorder showed similar abnormalities.
conclusionsOur findings demonstrate abnormally elevated brain Glu and Gly levels in patients with first-episode psychosis by means of echo time-averaged proton MRS at 4T. The findings implicate dysfunction of N-methyl-D-aspartate receptor and glutamatergic neurotransmission in the pathophysiology of the acute early phase of psychotic illnesses.
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