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  • Title: Inhibition of platelet aggregation and reversal of vasopressin-induced ECG changes by a carboprostacyclin analogue, ONO 41483, in primates.
    Author: Adaikan PG, Kottegoda SR, Lau LC, Tai MY, Karim SM.
    Journal: Prostaglandins Leukot Med; 1982 Sep; 9(3):307-20. PubMed ID: 6752959.
    Abstract:
    15-cyclopentyl-omega-pentanor-5(E)-carbacyclin (ONO 41483), a chemically stable carboprostacyclin analogue, was 3.3 times less active than prostacyclin but was 2.6 times more active than carboprostacyclin in inhibiting aggregation of ADP-induced baboon platelet in vitro. On human platelets in vitro, ONO 41483 was 9.4 times less active than prostacyclin and 12.7 times more active than carboprostacyclin. ONO 41483 was 3.7 times less active than prostacyclin but was 2.2 times more active than carboprostacyclin in producing a fall in arterial blood pressure in anaesthetised baboons. Intravenous and oral administration of ONO 41483 in baboons produced ex vivo inhibition of ADP-induced platelet aggregation at doses that did not affect blood pressure or heart rate. In addition, bolus intravenous doses (3 to 10 micrograms/kg) of ONO 41483 reversed vasopressin-induced ECG changes in the monkey, suggesting an ability of the compound to relieve coronary spasm.
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