PMID: 22335126Feb 18, 2012Paper

Changes in positive and negative symptoms, general psychopathology in schizophrenic patients during augmentation of antipsychotics with glycine: a preliminary 10-week open-label study

Psychiatria polska
Dominik Strzelecki, Jolanta Rabe-Jabłońska

Abstract

The Glutamatergic system is the most important excitatory system of the human brain. Dysfunction of this system plays an important role in the pathogenesis of numerous psychiatric disorders, including schizophrenia. According to the glutamatergic hypothesis of schizophrenia augmentation of the antipsychotic treatment with glycine--a coagonist of NMDA receptor helps to achieve better improvement. The aim of the study was to assess changes in mental status i.e. positive, negative and general psychopathology symptoms during augmentation of antipsychotic treatment with glycine in schizophrenic patients in a stable mental state with predominant negative symptoms. The study group consisted of 29 patients with a diagnosis of schizophrenia (ICD-10) with predominant negative symptoms. It was a 10-week prospective open-label study, which included 7 visits. Participants enrolled to the study received a fixed dose of antipsychotic drugs for at least 3 months prior to application of glycine. In addition to the existing antipsychotic treatment, patients were administered glycine orally (up to 60 g/day) for 6 weeks. 2 weeks before and after application of glycine, their mental status was also evaluated. At each visit we assessed severity of s...Continue Reading

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