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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Action of prostanoids on the emetic reflex of Suncus murinus (the house musk shrew).

Several prostanoids were investigated for a potential to induce emesis in Suncus murinus. The TP receptor agonist 11alpha,9alpha-epoxymethano-15S-hydroxyprosta-5Z,13E-dienoic acid (U46619) induced emesis at doses as low as 3 microg/kg, i.p. but the DP receptor agonist 5-(6-Carboxyhexyl)-1-(3-cyclohexyl-3-hydroxypropyl) hydantoin (BW245C) was approximately 1000 times less potent. The emetic action of U46619 (300 microg/kg, i.p.) was antagonized significantly by the TP receptor antagonist, vapiprost (P<0.05). EP (prostaglandin E(2), 17-phenyl-omega-trinor prostaglandin E(2), misoprostol and sulprostone), FP (prostaglandin F(2alpha) and fluprostenol) and IP (iloprost and cicaprost) receptor agonists failed to induce consistent emesis at doses up to 300-1000 microg/kg, i.p. Fluprostenol reduced nicotine (5 mg/kg, s.c.)-but not copper sulphate (120 mg/kg, intragastric)-induced emesis; the other inconsistently emetic prostanoids were inactive to modify drug-induced emesis. The results indicate an involvement of TP and possibly DP and FP receptors in the emetic reflex of S. murinus.[1]


  1. Action of prostanoids on the emetic reflex of Suncus murinus (the house musk shrew). Kan, K.K., Jones, R.L., Ngan, M.P., Rudd, J.A. Eur. J. Pharmacol. (2003) [Pubmed]
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