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  • Title: Involvement of eicosanoids and PAF in immune-complex alveolitis.
    Author: Tavares-de-Lima W, Teixeira CF, Sirois P, Jancar S.
    Journal: Braz J Med Biol Res; 1989; 22(6):745-8. PubMed ID: 2620187.
    Abstract:
    An immune-complex-mediated hypersensitivity reaction induced in the rat lung was followed by release of the eicosanoids thromboxane, prostaglandin E2 and leukotriene B4 into the bronchoalveolar space. Concomitantly, there was a decrease in the number of circulating platelets. The thrombocytopenia was inhibited by a cyclo-oxygenase inhibitor (indomethacin), a platelet activating factor (PAF) antagonist (BN-52021) and an inhibitor of thromboxane (econazole), but was not affected by a lipoxygenase inhibitor (NDGA). These results suggest the involvement of eicosanoids and PAF in the immune complex hypersensitivity reaction in the rat lung and indicate the occurrence of interactions between PAF and thromboxane.
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