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An. acad. bras. ciênc ; 71(2): 189-201, jun. 1999. ilus, graf
Artículo en Inglés | LILACS | ID: lil-234513

RESUMEN

Although recently developed drugs have brought significant improvement, the treatment of psychotic disorders still presents serious drawbacks. Since inherent complexity and lack of satisfactory understanding of the underlying pathophysiology impose limits for rational drug design, resourceful approaches in the search for antipsychotics are pertinent. This paper reports pharmacological properties of alstonine, a heteroyohimbine type alkaloid, Which exbitited an antipsychotic-like profile, inhibiting amphetamine-induced lethaly, apomorphine-induced steotypy and potentiating barbiturate-induced slleping time. Atypical features of alstonine were the prevention of haloperidol-induced catalepsy and lack of direct interaction with D1, D2 and 5-HT2A receptors, classically linked to antipsychotic mechanism of action.


Asunto(s)
Animales , Masculino , Ratones , Antipsicóticos/farmacología , Plantas Medicinales , Alcaloides de Triptamina Secologanina/farmacología , Anfetamina/antagonistas & inhibidores , Apomorfina/antagonistas & inhibidores , Barbitúricos/antagonistas & inhibidores , Estimulantes del Sistema Nervioso Central/antagonistas & inhibidores , Clorpromazina/farmacología , Clozapina/farmacología , Diazepam/farmacología , Eméticos/antagonistas & inhibidores , Haloperidol/farmacología , Hipnóticos y Sedantes/antagonistas & inhibidores , Nigeria , Pentobarbital/farmacología , Reserpina/farmacología , Sueño/efectos de los fármacos , Estereotipo , Sulpirida/farmacología
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