Abstract
Altered membrane phospholipid fatty acid composition is reported in schizophrenia and appears to be reduced by antipsychotic drug treatment. To determine whether antipsychotic drugs have a direct effect on brain phospholipid fatty acid composition, the effects of sub-chronic treatment with a “typical” and an “atypical” antipsychotic drug were determined in adult male Sprague–Dawley rats. Rats were treated with haloperidol (1 mg/kg), clozapine (20 mg/kg) or vehicle daily for 21 days. Whole brain total phospholipid composition was determined by gas chromatography. No alterations in brain phospholipid composition were produced by either drug. This suggests that the apparent normalization of membrane phospholipids observed in drug-treated schizophrenic patients is not due to a direct pharmacological effect of these drugs nor can the pharmacological effects of these drugs occurring in this time frame be attributed to alterations in neuronal membrane fatty acid composition.
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