Abstract
Using event-related potentials (ERPs), a reduction in the auditory N100, N200 and P300 amplitude has been found in schizophrenic patients and may represent some pathophysiological deficit. Therefore, we investigated whether the genetic variant of the serotonin-2A receptor is associated with ERP change after clozapine treatment in schizophrenic patients. Ninety-nine schizophrenic patients were included in the study. The results demonstrated that patients with 102C/C genotype have higher N100 amplitude than other patients after clozapine treatment. Our findings suggested that serotonin-2A receptor polymorphism may relate to clozapine response in schizophrenic patients. An objective and reliable tool like ERPs to assess patients’ treatment response may afford more consistent results in pharmacogenetic studies.
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