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  • Title: Aspirin-sensitive asthma: significance of the cyclooxygenase-inhibiting and protein-binding properties of analgesic drugs.
    Author: Williams WR, Pawlowicz A, Davies BH.
    Journal: Int Arch Allergy Appl Immunol; 1991; 95(4):303-8. PubMed ID: 1959973.
    Abstract:
    The in vitro release of endogenous and exogenous PgF2 alpha from plasma and serum proteins by aspirin and other analgesic drugs has been studied by RIA and equilibrium-dialysis techniques, respectively. Before aspirin addition, the mean plasma level of PgF2 alpha measured by RIA was significantly lower in aspirin-sensitive asthma (ASA) patients (11.3 +/- 6.5 pg/ml; n = 8) than in aspirin-tolerant asthma (ATA) patients (25.0 +/- 11.4 pg/ml; n = 21). After aspirin addition (50 micrograms/ml) the mean PgF2 alpha level detected in plasma by RIA was higher in ASA patients (97.6 +/- 5.5 pg/ml) than in ATA patients (66.9 +/- 4.5). The binding of [3H]PgF2 alpha to serum protein was significantly inhibited by NSAIDs but not by paracetamol (0.2-1.0 mM). These results implicate PgF2 alpha and the protein-binding property of analgesic drugs in the pathogenesis of aspirin-sensitive asthma.
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