Reference : Role of Substance P and Tachykinin Receptor Antagonists in Citric Acid-Induced Cough ...
Scientific journals : Article
Life sciences : Veterinary medicine & animal health
http://hdl.handle.net/2268/32603
Role of Substance P and Tachykinin Receptor Antagonists in Citric Acid-Induced Cough in Pigs
English
Moreaux, B. [Université de Liège - ULG > > > > > >]
Nemmar, A. [Université de Liège - ULG > > > > > >]
Vincke, G. [Université de Liège - ULG > > > > > >]
Halloy, D. [Université de Liège - ULG > > > > > >]
Beerens, Dominique mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Département de sciences fonctionnelles >]
Advenier, C. [Université de Paris V > Faculté de médecine Paris-Ouest > > > > >]
Gustin, Pascal mailto [Université de Liège - ULg > Département de sciences fonctionnelles > Pharmacologie, pharmacothérapie et toxicologie >]
2000
European Journal of Pharmacology
Elsevier Science
408
3
305-312
Yes (verified by ORBi)
0014-2999
Amsterdam
The Netherlands
[en] Cough ; Substance P ; C-fibre ; Tacgykinin ; Citric acid
[en] The purpose of this work was to investigate the role of tachykinins in cough induced by citric acid (0.8 M) in pigs. With this object, we have studied the effect of citric acid on substance P content in the tracheo-bronchial tree and the effects of substance P and of tachykinin receptor antagonists on citric acid-induced cough. Citric acid exposure significantly increased substance P concentration in both broncho-alveolar and tracheal lavage fluids, while it decreased significantly the substance P content in tracheal mucosa. Substance P did not elicit cough, but significantly potentiated the citric acid-induced cough frequency. Tachykinin NK(1), NK(2) or NK(3) receptor antagonists, SR 140333 (nolpitantium), SR 48968 (saredutant) and SR 142801 (osanetant), respectively, significantly inhibited citric acid-induced cough. The same inhibitory effect of tachykinin receptor antagonists was observed, when substance P was nebulised before citric acid challenge. We conclude that citric acid induces in pigs a release of substance P in the tracheo-bronchial tree, which plays a sensitising role on the cough reflex. The involvement of tachykinin NK(1), NK(2), NK(3) receptors are also demonstrated in this reflex.
Ministry of Agriculture (grant n°5778A); FNRS and Fonds spéciaux pour la Recherche (ULg)
Researchers ; Professionals
http://hdl.handle.net/2268/32603

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