ArticleSchizophrenia bulletin2016
Genetic Polymorphism Associated Prefrontal Glutathione and Its Coupling With Brain Glutamate and Peripheral Redox Status in Early Psychosis.
Article in Schizophrenia bulletin, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 5 of them syntheses that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
61 citing papers in PubMed, 5 syntheses or guidelines pooled it, 102 citations in OpenAlex.
- Variability and magnitude of brain glutamate levels in schizophrenia: a meta and mega-analysis.Molecular psychiatry · 2023Pooled it
- Glutamatergic and GABAergic metabolite levels in schizophrenia-spectrum disorders: a meta-analysis ofMolecular psychiatry · 2022Pooled it
- Medial Prefrontal Cortex Glutamate Is Reduced in Schizophrenia and Moderated by Measurement Quality: A Meta-analysis of Proton Magnetic Resonance Spectroscopy Studies.Biological psychiatry · 2021Pooled it
- Pooled it
- Role of magnetic resonance spectroscopy in cerebral glutathione quantification for youth mental health: A systematic review.Early intervention in psychiatry · 2020Pooled it
- N-Acetyl-Cysteine Supplementation Improves Functional Connectivity Within the Cingulate Cortex in Early Psychosis: A Pilot Study.The international journal of neuropsychopharmacology · 2019Trial
- Effects of acute N-acetylcysteine challenge on cortical glutathione and glutamate in schizophrenia: A pilot in vivo proton magnetic resonance spectroscopy study.Psychiatry research · 2019Trial
- N-acetylcysteine add-on treatment leads to an improvement of fornix white matter integrity in early psychosis: a double-blind randomized placebo-controlled trial.Translational psychiatry · 2018Trial
- N-acetylcysteine in a Double-Blind Randomized Placebo-Controlled Trial: Toward Biomarker-Guided Treatment in Early Psychosis.Schizophrenia bulletin · 2018Trial
- Gestational Hypoxia Disrupts Medial Ganglionic Eminence Progenitor Dynamics and Interneuron Development in Schizophrenia.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Redox Homeostasis and Oxidative Stress in Schizophrenia: Glutathione-NMDA-Neuroimmune Convergence and a Hypothesis-Generating Iron-Lipid Redox Extension.International journal of molecular sciences · 2026Review
- Review
- Myo-inositol concentration in the medial prefrontal cortex is associated with changes in brain white matter microstructure in early psychosis.Translational psychiatry · 2026Article
- Developmental perfluorooctane sulfonate (PFOS) exposure alters gene expression in nucleus accumbens and prefrontal cortex and impairs cognition in rats: A transcriptomic and mediation analysis.Ecotoxicology and environmental safety · 2026Article
- Alterations in Nitric Oxide Production After Post-Weaning Social Isolation.Physiological research · 2025Article
- Association of GRM7 Polymorphisms with Bilateral Auditory Regions Glutamate and Coupling with Glutathione in ARHL Patients.Molecular neurobiology · 2025Article
- Association between decreased taurine levels in the anterior cingulate cortex and restricted and repetitive behaviors in autism spectrum disorder: a cross-sectional study.Frontiers in psychiatry · 2025Article
- Altered Brain Functional Connectivity and Neurometabolite Correlations in Orofacial Chronic Pain with Central Sensitization.Journal of pain research · 2025Article
- Neurocognition and NMDAR co-agonists pathways in individuals with treatment resistant first-episode psychosis: a 3-year follow-up longitudinal study.Molecular psychiatry · 2024Article
- Redox and Immune Signaling in Schizophrenia: New Therapeutic Potential.The international journal of neuropsychopharmacology · 2023Review
1 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
13 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOxidative stress and glutathione (GSH) metabolism dysregulation has been implicated in the pathophysiology of schizophrenia. GAG-trinucleotide repeat (TNR) polymorphisms in the glutamate-cysteine ligase catalytic gene (GCLC), the rate-limiting enzyme for GSH synthesis, are associated with schizophrenia. In addition, GSH may serve as a reserve pool for neuronal glutamate (Glu) through the γ-glutamyl cycle. The aim of this study is to investigate brain [GSH] and its association with GCLC polymorphism, peripheral redox indices and brain Glu.
methodsMagnetic resonance spectroscopy was used to measure [GSH] and [Glu] in the medial prefrontal cortex (mPFC) of 25 early-psychosis patients and 33 controls. GCLC polymorphism was genotyped, glutathione peroxidases (GPx) and glutathione reductase (GR) activities were determined in blood cells.
resultsSignificantly lower [GSHmPFC] in GCLC high-risk genotype subjects were revealed as compared to low-risk genotype subjects independent of disease status. In male subjects, [GSHmPFC] and blood GPx activities correlate positively in controls (P = .021), but negatively in patients (P = .039). In GCLC low-risk genotypes, [GlumPFC] are lower in patients, while it is not the case for high-risk genotypes.
conclusionsGCLC high-risk genotypes are associated with low [GSHmPFC], highlighting that GCLC polymorphisms should be considered in pathology studies of cerebral GSH. Low brain GSH levels are related to low peripheral oxidation status in controls but with high oxidation status in patients, pointing to a dysregulated GSH homeostasis in early psychosis patients. GCLC polymorphisms and disease associated correlations between brain GSH and Glu levels may allow patients stratification.
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