PMID- 24595507 OWN - NLM STAT- MEDLINE DCOM- 20150910 LR - 20220310 IS - 1432-2072 (Electronic) IS - 0033-3158 (Linking) VI - 231 IP - 18 DP - 2014 Sep TI - Association between the brain-derived neurotrophic factor Val66Met polymorphism and therapeutic response to olanzapine in schizophrenia patients. PG - 3757-64 LID - 10.1007/s00213-014-3515-4 [doi] AB - RATIONALE: Brain-derived neurotrophic factor (BDNF) is a neurotrophin that plays a major role in neurogenesis and neuroplasticity, and in the modulation of several neurotransmitter systems including the dopaminergic system. There are mixed reports about the association between the BDNF Val66Met polymorphism, schizophrenia, and treatment response to antipsychotic drugs. OBJECTIVES: The present study evaluated the association of the BDNF Val66Met polymorphism with treatment response to atypical antipsychotic olanzapine in schizophrenia and the possible predictive value of the BDNF Val66Met genotype status in treatment response to antipsychotic medication. METHODS: The study included 590 ethnically homogenous Caucasian patients with schizophrenia (diagnosed using the SCID), 40.2 +/- 12.0 years old, treated with olanzapine monotherapy (10-20 mg/day), or with other antipsychotics such as risperidone (3-6 mg/day), clozapine (100-500 mg/day), haloperidol (3-115 mg/day), fluphenazine (4-25 mg/day), and quetiapine (50-800 mg/day). Patients were subdivided into responders and non-responders according to a 50 % reduction in the Positive and Negative Syndrome Scale (PANSS) total and subscale scores after 8 weeks of treatment. RESULTS: The results, corrected for possible effects of gender and age, showed a significant association between the BDNF Val66Met polymorphism and treatment response to olanzapine in patients. The Val/Val genotype was observed more frequently in treatment responders to olanzapine, and this genotype was associated with an improvement in clinical symptoms. CONCLUSIONS: Our results suggest that BDNF Val66Met variants might influence the response to 8 weeks of monotherapy with olanzapine, in a relatively large sample of patients with schizophrenia. FAU - Nikolac Perkovic, Matea AU - Nikolac Perkovic M AD - Division of Molecular Medicine, Rudjer Boskovic Institute, Bijenicka 54, 10000, Zagreb, Croatia. FAU - Nedic Erjavec, Gordana AU - Nedic Erjavec G FAU - Zivkovic, Maja AU - Zivkovic M FAU - Sagud, Marina AU - Sagud M FAU - Uzun, Suzana AU - Uzun S FAU - Mihaljevic-Peles, Alma AU - Mihaljevic-Peles A FAU - Kozumplik, Oliver AU - Kozumplik O FAU - Muck-Seler, Dorotea AU - Muck-Seler D FAU - Pivac, Nela AU - Pivac N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140305 PL - Germany TA - Psychopharmacology (Berl) JT - Psychopharmacology JID - 7608025 RN - 0 (Antipsychotic Agents) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 12794-10-4 (Benzodiazepines) RN - J60AR2IKIC (Clozapine) RN - J6292F8L3D (Haloperidol) RN - L6UH7ZF8HC (Risperidone) RN - N7U69T4SZR (Olanzapine) SB - IM MH - Adult MH - Antipsychotic Agents/*therapeutic use MH - Benzodiazepines/*therapeutic use MH - Brain-Derived Neurotrophic Factor/*genetics MH - Clozapine/therapeutic use MH - Female MH - Genetic Association Studies MH - Genotype MH - Haloperidol/therapeutic use MH - Humans MH - Male MH - Middle Aged MH - Olanzapine MH - Pharmacogenetics MH - *Polymorphism, Single Nucleotide MH - Predictive Value of Tests MH - Risperidone/therapeutic use MH - Schizophrenia/*drug therapy/*genetics MH - Treatment Outcome EDAT- 2014/03/07 06:00 MHDA- 2015/09/12 06:00 CRDT- 2014/03/06 06:00 PHST- 2013/12/27 00:00 [received] PHST- 2014/02/15 00:00 [accepted] PHST- 2014/03/06 06:00 [entrez] PHST- 2014/03/07 06:00 [pubmed] PHST- 2015/09/12 06:00 [medline] AID - 10.1007/s00213-014-3515-4 [doi] PST - ppublish SO - Psychopharmacology (Berl). 2014 Sep;231(18):3757-64. doi: 10.1007/s00213-014-3515-4. Epub 2014 Mar 5.