Brain glutathione levels and age at onset of illness in chronic schizophrenia

Acta Neuropsychiatrica
Yvonne S YangMichael F Green

Abstract

Oxidative stress is implicated in the etiology of schizophrenia, and the antioxidant defense system may be protective in this illness. We examined the major antioxidant glutathione (GSH) in prefrontal brain, and its correlates with clinical and demographic variables, in schizophrenia. GSH levels were measured in the dorsolateral prefrontal region of 28 patients with chronic schizophrenia using a magnetic resonance spectroscopy sequence specifically adapted for GSH. We examined correlations of GSH levels with age, age at onset of illness, duration of illness, and clinical symptoms. We found a negative correlation between GSH levels and age at onset (r=-.46, p=.015), and a trend-level positive relationship between GSH and duration of illness (r=.34, p=.076). Our findings are consistent with a possible compensatory upregulation of the antioxidant defense system with longer duration of illness, and suggests the antioxidant defense system may play a role in schizophrenia.

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Citations

Jul 6, 2021·Current Topics in Medicinal Chemistry·Antonio VentriglioDomenico De Berardis

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