| Literature DB >> 6138266 |
G E Martin, J H Jones, R J Bendesky.
Abstract
The putatively selective dopamine autoreceptor agonists TL-99 and 3-PPP were compared with apomorphine for the production of contraversive turning in the 6-hydroxydopamine-lesioned rat. Although less potent than apomorphine, 3-PPP produced dose-related contralateral turning. The contralateral turning produced by TL-99 plateaued at the 3 mg/kg i.p. dose level. Yohimbine significantly enhanced the TL-99-induced turning, whereas it failed to modify the 3-PPP turning. The results suggest that the alpha 2-adrenergic properties of TL-99 at doses of greater than 3.0 mg/kg masked its dopaminergic effects. Hence, 3-PPP is clearly the more selective agent for DA receptors.Entities:
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Year: 1983 PMID： 6138266 DOI： 10.1016/0014-2999(83)90298-4
Source DB: PubMed Journal: Eur J Pharmacol ISSN： 0014-2999 Impact factor: 4.432