Action of Cyclooxygenase Inhibitors and a Leukotriene Biosynthesis Inhibitor on Cisplatin-Induced Acute and Delayed Emesis in the Ferret

DOI Web Site 参考文献71件
  • Sam Tasia S.W.
    Emesis Research Group, Department of Pharmacology, Faculty of Medicine, The Chinese University of Hong Kong, China
  • Ngan Man P.
    Emesis Research Group, Department of Pharmacology, Faculty of Medicine, The Chinese University of Hong Kong, China
  • Riendeau Denis
    Department of Pharmacology, Merck Frosst Centre for Therapeutic Research, Canada
  • Robichaud Annette
    Department of Pharmacology, Merck Frosst Centre for Therapeutic Research, Canada
  • Rudd John A.
    Emesis Research Group, Department of Pharmacology, Faculty of Medicine, The Chinese University of Hong Kong, China

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Cisplatin at 5 mg/kg, i.p. induced an acute (day 1) and delayed (days 2 and 3) emetic response in the ferret that was used to investigate the anti-emetic activity of the non-selective cyclooxygenase inhibitor indomethacin (3 – 30 mg/kg, i.p., three times per day) and two cyclooxygenase-2 inhibitors, DFU [5,5-dimethyl-3-(3-fluorophenyl)-4-(4-methylsulphonyl)phenyl-2(5H)-furanone; 1 – 10 mg/kg, i.p. administered at 40 and 48 h] and L-745,337 [5-methanesulphonamido-6-(2,4-diflurothiophenyl)-1-indanone; 10 mg/kg, i.p., administered at 40 and 48 h]. Only indomethacin potentiated significantly cisplatin-induced retching + vomiting (P<0.05); DFU antagonized delayed emesis (P<0.05) but the action was not dose-related and L-745,337 was inactive (P>0.05). However, indomethacin alone (30 mg/kg) also induced emesis (P<0.05). The leukotriene biosynthesis inhibitor, MK-886 {3-[1-(p-chlorobenzyl)-5-(isopropyl)-3-tert-butylthioindol-2-yl]-2,2-dimethylpropanoic acid; 1 – 10 mg/kg, i.p., three times per day} had no action to modify cisplatin-induced emesis (P>0.05). The combination treatment of indomethacin (10 mg/kg, i.p., three times per day) with MK-886 (10 mg/kg, i.p., three times per day) did not antagonize cisplatin-induced acute delayed retching + vomiting and had a different profile compared to the action of dexamethasone (1 mg/kg, i.p., three times per day; P<0.05). Inhibition of the cyclooxygenase and lipoxygenase pathways does not account for the anti-emetic of dexamethasone.<br>

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