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  • Title: Bronchial and vascular effects of Paf in the rat isolated lung are completely blocked by WEB 2086, a novel specific Paf antagonist.
    Author: Casals-Stenzel J, Franke J, Friedrich T, Lichey J.
    Journal: Br J Pharmacol; 1987 Aug; 91(4):799-802. PubMed ID: 3664079.
    Abstract:
    1 The effect of the platelet-activating factor (Paf) antagonist, WEB 2086, on Paf-induced increase of pulmonary artery perfusion pressure (Pp), bronchial inflation pressure (Pi) and wet-to-dry lung weight ratios (W/D) was investigated in the rat isolated lung. 2 Lungs were perfused with Krebs-Ringer solution (KRS) as controls or with KRS containing WEB 2086 (0.1, 1.0, 10.0 or 100 micrograms ml-1) and then injected with a bolus of 20 micrograms Paf. 3 A dose-related inhibition of the Paf-induced increase of Pp, Pi and W/D was observed, being almost maximal for the 10.0 micrograms ml-1 and complete for the 100 micrograms ml-1 doses of WEB 2086 when compared to controls. 4 It is concluded that WEB 2086 is a highly effective and specific Paf antagonist in the pulmonary vasculature and bronchial tract.
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