Mechanism of peruvoside-induced emesis

Peruvoside causes emesis in dogs and cats by oral or intravenous routes. There is no species difference and effective emetic doses in either species did not differ significantly. Decerebrate cats vomit after intravenous administration of peruvoside. Intraventricular or intracistemal administration o...

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Veröffentlicht in:Neuropharmacology 1972-05, Vol.11 (3), p.427-433
Hauptverfasser: Gaitonde, B.B., Joglekar, S.N.
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description Peruvoside causes emesis in dogs and cats by oral or intravenous routes. There is no species difference and effective emetic doses in either species did not differ significantly. Decerebrate cats vomit after intravenous administration of peruvoside. Intraventricular or intracistemal administration of the drug does not cause emesis but a typical “digitalis toxicity syndrome” is seen. The ablation of the chemoreceptor trigger zone fails to eliminate peruvosideinduced emesis, but nodose ganglionectomy eliminates this response. Intracarotid injections of the drug considerably reduce the threshold latency in eliciting emesis. We conclude that peruvoside stimulates receptors in the nodose ganglion to produce emesis.
doi_str_mv 10.1016/0028-3908(72)90028-7
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subjects Administration, Oral
Animals
Brain - physiology
Cardanolides - pharmacology
Cardiac Glycosides - administration & dosage
Cardiac Glycosides - pharmacology
Cats
Chemoreceptor Cells - drug effects
Chemoreceptor Cells - physiology
Dogs
Emetics - administration & dosage
Female
Injections
Injections, Intra-Arterial
Injections, Intravenous
Male
Ouabain
Protoveratrines
Rabbits
Time Factors
Vagotomy
Vagus Nerve - physiology
Vomiting - chemically induced
title Mechanism of peruvoside-induced emesis
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