Excitatory aminoacid neurotransmitters in schizophrenia.

The study presents for the first time the blood level of glutamate and aspartate in schizophrenic patients and in normal subjects in Bangladeshi population. The serum level of glutamate and aspartate were measured in thirty newly diagnosed schizophrenic patients and the same number of subjects matching age was taken from non-schizophrenic control. The age group of the patient was between 15 and 45 years and the male female ratio was 2.7:1. Serum concentration of glutamate (598.83 +/- 574.48 nmol/ml) was significantly higher (p < 0.001) in schizophrenic group compared to control (196.16 +/- 171.31 nmol/ ml). The serum asparate concentration was also significantly higher in schizophrenic cases (282.91 +/- 299.94 nmol/ml) as compared to control (33.89 +/- 42.68 nmol/ml, p < 0.001). The correlation coefficient between serum glutamate and asparate was significant (p < 0.001). The increased serum glutamate and asparate levels may be the causative or contributing factor in the pathogenesis and progression of schizophrenia.