Typical antipsychotic drugs - D-2 receptor occupancy and depressive symptoms in schizophrenia

R A Bressan, D C Costa, H M Jones, P J Ell, L S Pilowsky

Research output: Contribution to journalConference paper

Abstract

We tested the hypothesis that the degree of striatal dopamine D-2 receptor blockade induced by typical antipsychotic treatment directly correlates with the presence and severity of depressive symptoms in schizophrenia. Clinical and [I-123]-IBZM Single photon emission tomography (SPET) scan data obtained from 18 typical antipsychotic treated schizophrenic patients was analysed to evaluate the relationship between striatal D, receptor occupancy and the depressive subscale of the Brief Psychiatric Rating Scale (BPRS-D). Striatal D-2 receptor occupancy by typical antipsychotic drugs was significantly positively correlated with BPRS-D scores (r = 0,52, p = 0.025). This study suggests that high striatal dopamine D-2 blockade by typical antipsychotic drugs may contribute to the emergence of depressive symptoms in typical antipsychotic treated schizophrenic patients. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)31 - 36
Number of pages6
JournalSchizophrenia Research
Volume56
Issue number1-2
Publication statusPublished - 2002
Event55th Annual Meeting of the Society-of-Biological-Psychiatry - CHICAGO, ILLINOIS
Duration: 1 Jan 2002 → …

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