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  • Title: Salicylate fails to prevent the inhibitory effect of 5,8,11,14-eicosatetraynoic acid on human platelet cyclo-oxygenase and lipoxygenase activities.
    Author: Cerletti C, Livio M, Doni MG, De Gaetano G.
    Journal: Biochim Biophys Acta; 1983 Aug 23; 759(1-2):125-7. PubMed ID: 6411131.
    Abstract:
    Sodium salicylate is inactive both on cyclo-oxygenase and lipoxygenase prepared from human platelets. It prevents the inhibition of cyclo-oxygenase induced by aspirin, but does not counteract the inhibitory effect of 5,8,11,14-eicosatetraynoic acid on both enzymes. It also fails to interfere with the inhibitory activity of nordihydroguaiaretic acid on lipoxygenase. These data indicate that, unlike eicosatetraynoic acid, non-steroidal anti-inflammatory drugs interact with a site on cyclo-oxygenase distinct from the catalytic site, although related to it. Such a supplementary binding site is lacking on lipoxygenase.
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