Pharmacological modulation of responses of guinea-pig airways contracted with arachidonic acid.
Arachidonic acid (AA) was used to induce contractions of guinea-pig tracheal and lung parenchymal preparations in the presence of indomethacin. Prior addition of FPL55712, nordihydroguaiaretic acid (NDGA), piriprost, benoxaprofen or nafazatrom, in order of potency, inhibited AA-induced contractions of trachea. Higher concentrations (2 - 3 fold) were necessary to inhibit contractions of parenchyma. FPL55712 and piriprost appeared to act as pharmacological antagonists of leukotrienes because they rapidly reduced the tone of the airways established by AA. Administration of exogenous AA to indomethacin-treated trachea appears to be a good model to examine leukotriene receptor antagonists and inhibitors of the lipoxygenase pathway.[1]References
- Pharmacological modulation of responses of guinea-pig airways contracted with arachidonic acid. Burka, J.F. Br. J. Pharmacol. (1985) [Pubmed]
Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenesOpen Access LicencePrivacy PolicyTerms of Useapsburg