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- W2079432459 abstract "The mechanism of action of both typical antipsychotics and the atypical antipsychotic, clozapine, may be related to the (changing) interaction of dopamine and serotonin in schizophrenia. This study examined the effect of olanzapine in schizophrenic patients on cerebrospinal fluid (CSF) metabolites of dopamine (homovanillic acid, HVA) and serotonin (5-hydroxyindoleacetic acid, 5-HIAA). Twenty-three male schizophrenic patients, who were drug-free for at least 2 weeks (mean drug-free period of 35 days +/- 43; median 16 days), underwent a lumbar puncture (LP). Patients were subsequently treated with olanzapine 10 mg/day for 6 weeks, after which the LP was repeated. CSF was assayed for HVA and 5-HIAA concentrations. Psychiatric symptoms were rated once a week. Olanzapine significantly increased HVA concentrations and the HVA/5-HIAA ratio while 5-HIAA concentrations were not altered. These changes did not significantly correlate with treatment response. A negative correlation was found between HVA concentrations and negative symptoms after olanzapine treatment. In conclusion, olanzapine treatment increases HVA concentrations and the HVA/5-HIAA ratio in CSF of schizophrenic patients, but these changes are unrelated to its clinical efficacy." @default.
- W2079432459 created "2016-06-24" @default.
- W2079432459 creator A5091426787 @default.
- W2079432459 date "2001-10-01" @default.
- W2079432459 modified "2023-10-17" @default.
- W2079432459 title "The Effect of Olanzapine Treatment on Monoamine Metabolite Concentrations in the Cerebrospinal Fluid of Schizophrenic Patients" @default.
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- W2079432459 doi "https://doi.org/10.1016/s0893-133x(01)00250-0" @default.
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