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Eur J Pharmacol. 1994 Sep 1;262(1-2):107-11.

Antidepressant-like effect of selective dopamine D1 receptor agonists in the behavioural despair animal model of depression.

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  • 1B.B. Brodie Department of Neuroscience, University of Cagliari, Italy.


We compared the effect of two selective dopamine D1 receptor agonists, SKF 38393 ((+/-)-1-phenyl-2,3,4,5-tetrahydro-(1H)-3-benzazepine-7,8-diol.HCl) and A68930 ((1R,3S)-1-aminomethyl-5,6-dihydroxy-3-phenylisochroman.HCl), and that of imipramine in the behavioural despair model of depression. The dopamine D1 receptor agonists and imipramine showed an anti-immobility effect. Moreover we found that the 'antidepressant' effect of imipramine in the behavioural despair test was antagonized by SCH 23390, a selective dopamine D1 receptor blocker. The results further support the hypothesis that dopamine D1 receptor stimulation plays an important role in the mechanism of action of antidepressants and suggest that dopamine D1 receptor agonists might be considered as potential antidepressant drugs.

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