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Science 8 February 1974:
Vol. 183. no. 4124, pp. 539 - 540
DOI: 10.1126/science.183.4124.539
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Articles

Apomorphine: Modification of Its Hyperthermic Effect in Rabbits by p-Chlorophenylalanine

R. M. Quock 1 and A. Horita 1

1 Department of Pharmacology, University of Washington School of Medicine, Seattle 98195

The hyperthermic response of rabbits to apomorphine, a dopaminergic agonist, is abolished by prior treatment with p-chlorophenylalanine. If such 5-hydroxytryptamine (5-HT)-depleted animals are administered a peripherally acting decarboxylase inhibitor plus 5-hydroxytryptophan, central stores of 5-HT are regenerated and the hyperthermic response to apomorphine is restored in part. The effects of apomorphine in rabbits with elevated concentrations of 5-HT are not different from those in control animals. The behavioral effects of apomnorphine appear to be constant in all groups of animals tested. It is suggested that the hyperthermic effects of apomorphine in rabbits require the presence of 5-HT.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)