Receptor mechanisms in antipsychotic drug action: focus on sigma receptors (original) (raw)
Publication: The Journal of Neuropsychiatry and Clinical Neurosciences
Abstract
The principal antischizophrenic neuroleptic drugs in current clinical use act by blocking dopamine receptors, which mediate extrapyramidal side effects and tardive dyskinesia. As an alternative strategy, researchers have sought agents that do not influence dopamine receptors but whose behavioral effects in animals resemble those of neuroleptics. Some promising "new generation" candidate drugs have shown beneficial effects in schizophrenic patients in early clinical trials. These new agents share a selective, high affinity for sigma receptors, sites where psychotomimetic opiates act. A systematic screen for drugs that block sigma receptors may provide a valuable strategy in identifying novel antischizophrenic agents and in clarifying the pathophysiology of psychosis.
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The Journal of Neuropsychiatry and Clinical Neurosciences
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Published in print: February 1989
Published online: 1 April 2006
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