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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The potential antipsychotic activity of the partial dopamine receptor agonist (+)N-0437.

The (+) enantiomer of the very potent and selective dopamine D-2 agonist, 2-(N-propyl-N-2-thienylethylamino)-5-hydroxytetralin (N-0437), displays partial agonistic activity at dopamine D-2 receptors. In this study (+)N-0437 was investigated for its antagonistic activity at postsynaptic DA receptors in four behavioural tests which are commonly used to evaluate potential neuroleptic activity, i.e. d-amphetamine-induced stereotypy, passive avoidance responding, intracranial self-stimulation behaviour, and catalepsy. (+)N-0437 (25-50 mumol/kg) was active in the first three models, but did not cause catalepsy. Haloperidol, which was used as a reference compound for classical DA antagonists, showed clear activity in all four models at low doses (0.5-1.0 mumol/kg). (-)N-0437, a full D-2 agonist, displayed no activity in these behavioural models. These results suggest that (+)N-0437 could be used to examine the hypothesis that the use of partial agonists could provide a new treatment for schizophrenia.[1]


  1. The potential antipsychotic activity of the partial dopamine receptor agonist (+)N-0437. Timmerman, W., Tepper, P.G., Bohus, B.G., Horn, A.S. Eur. J. Pharmacol. (1990) [Pubmed]
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