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Mössner, R; Schumacher, A; Kühn, K U; Cvetanovska, G; Rujescu, D; Zill, P; Quednow, B B; Rietschel, M; Wölwer, W; Gaebel, W; Wagner, M; Maier, W (2009). Functional serotonin 1A receptor variant influences treatment response to atypical antipsychotics in schizophrenia. Pharmacogenetics and Genomics, 19(1):91-94.

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The serotonin (5-HT) 1A receptor has been found to be dysregulated in prefrontal cortex and other brain regions in schizophrenia, and 5-HT1A receptor levels in the amygdala have been related to negative schizophrenia symptoms. We have assessed the impact of the functional C-1019G variant of the 5-HT1A receptor on the response to risperidone or haloperidol in a prospective, randomized, double-blind study. Patients were treated for 4 weeks and negative symptoms assessed weekly. The variant influenced the response to risperidone: improvement of negative symptoms by 4.38 points for carriers of the C allele, compared with the GG genotype (1.22 points, P=0.046). In a second independent study of 130 schizophrenia patients treated with atypical antipsychotics, this effect was confirmed (P=0.003). The functional variant of the 5-HT1A receptor thus influences the response of schizophrenia patients to atypical antipsychotics and may be useful in the future to predict the pharmacogenetics of negative symptoms.


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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Psychiatric University Hospital Zurich > Clinic for Psychiatry, Psychotherapy, and Psychosomatics
Dewey Decimal Classification:610 Medicine & health
Date:January 2009
Deposited On:19 Nov 2008 08:27
Last Modified:05 Apr 2016 12:34
Publisher:Lippincott Wiliams & Wilkins
Publisher DOI:10.1097/FPC.0b013e328311a917
PubMed ID:18849890

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