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CLINICAL TRIAL
JOURNAL ARTICLE
Aripiprazole altered plasma levels of brain-derived neurotrophic factor and catecholamine metabolites in first-episode untreated Japanese schizophrenia patients.
Human Psychopharmacology 2012 January
OBJECTIVE: We investigated the effects of aripiprazole on plasma levels of brain-derived neurotrophic factor (BDNF) and catecholamine metabolites in first-episode untreated schizophrenia patients.
METHODS: The subjects were 50 Japanese first-episode untreated schizophrenia patients who met the Diagnostic and Statistical Manual of Mental Disorders Text Revision criteria and were treated with aripiprazole monotherapy. Twenty-nine were males, and 21 were females. The age ranged from 21 to 42 years (mean ± SD; 30.8 ± 5.3 years). Plasma BDNF and catecholamine metabolites were measured by ELISA and HPLC, respectively. Psychiatric symptoms were evaluated using by Positive and Negative Syndrome Scale.
RESULTS: Treatment with aripiprazole for 8 weeks significantly increased plasma BDNF levels. It also changed plasma levels of homovanillic acid and 3-methoxy-4-hydroxyphenylglycol. A negative correlation was also observed between duration of psychosis and plasma BDNF levels. No correlation was observed however between plasma BDNF levels and the dose of aripiprazole.
CONCLUSIONS: To the best of our knowledge, this is the first report showing that aripiprazole increases plasma BDNF levels in first-episode untreated schizophrenia patients. Furthermore, the BDNF Val66Met polymorphism was independent of the response to aripiprazole.
METHODS: The subjects were 50 Japanese first-episode untreated schizophrenia patients who met the Diagnostic and Statistical Manual of Mental Disorders Text Revision criteria and were treated with aripiprazole monotherapy. Twenty-nine were males, and 21 were females. The age ranged from 21 to 42 years (mean ± SD; 30.8 ± 5.3 years). Plasma BDNF and catecholamine metabolites were measured by ELISA and HPLC, respectively. Psychiatric symptoms were evaluated using by Positive and Negative Syndrome Scale.
RESULTS: Treatment with aripiprazole for 8 weeks significantly increased plasma BDNF levels. It also changed plasma levels of homovanillic acid and 3-methoxy-4-hydroxyphenylglycol. A negative correlation was also observed between duration of psychosis and plasma BDNF levels. No correlation was observed however between plasma BDNF levels and the dose of aripiprazole.
CONCLUSIONS: To the best of our knowledge, this is the first report showing that aripiprazole increases plasma BDNF levels in first-episode untreated schizophrenia patients. Furthermore, the BDNF Val66Met polymorphism was independent of the response to aripiprazole.
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