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Schizophr Res. 1998 Jul 27;32(2):93-9.

Meta-analysis of studies on genetic variation in 5-HT2A receptors and clozapine response.

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  • 1Department of Psychological Medicine, Institute of Psychiatry, London, UK. marranzc@hgmp.mrc.ac.uk

Abstract

Serotonin (5-HT) neurotransmitter receptors are targeted by atypical antipsychotic drugs. We hypothesized that genetic variation in these receptors may affect clinical response to the drugs targeting them. This hypothesis has been tested by several studies in which the correlation between polymorphic variants in the 5-HT2A receptor gene and clinical response to the atypical antipsychotic clozapine was investigated. The results of these studies either found association between 5-HT2A genetic variants and clozapine response or found differences in the same direction which did not reach statistical significance. Meta-analysis of these studies including 373 patients who responded to the treatment and 360 non-responders showed association between two 5-HT2A polymorphisms, 102-T/C and His452Tyr, and clozapine response. Statistical analysis of extreme responders showed a clearer association of the 102-T/C with clozapine response. These results reinforce the hypothesis and strengthen the candidacy of these receptors as important therapeutic targets.

PMID:
9713904
[PubMed - indexed for MEDLINE]
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