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  • Title: In vitro antiplatelet activity of the carbinol analogue of ketoprofen, 3-(1-methyl-2-hydroxyethyl)-benzophenone.
    Author: Oshima K, Hashizume H, Miyamae T, Morikawa T, Hagiwara M.
    Journal: Arzneimittelforschung; 1996 Jul; 46(7):691-3. PubMed ID: 8842339.
    Abstract:
    3-(1-Methyl-2-hydroxyethyl)-benzophenone (F025) is a close structural analogue of ketoprofen, in which the carboxylic acid of ketoprofen is reduced to a carbinol moiety. The in vitro effects of F025 on platelet aggregation, cyclooxygenase and hypotonic NaCl-induced erythrocyte hemolysis were examined in comparison with those of ketoprofen. Although the inhibitory activity of F025 on collagen, arachidonic acid and ADP-induced platelet aggregation was between 2 and 20 times that of ketoprofen in healthy volunteers, guinea pigs, rabbits and rats, F025 had only one-tenth of the inhibitory action of ketoprofen on sheep seminal vesicle cyclooxygenase F025, but not ketoprofen, inhibited hypotonic NaCl-induced erythrocyte hemolysis in guinea pigs. The substantial antiplatelet activity of F025 may be due to membrane stabilization as well as to cyclooxygenase inhibition.
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