{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T13:42:09Z","timestamp":1777902129330,"version":"3.51.4"},"reference-count":0,"publisher":"S. Karger AG","license":[{"start":{"date-parts":[[2009,9,3]],"date-time":"2009-09-03T00:00:00Z","timestamp":1251936000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"},{"start":{"date-parts":[[2009,9,3]],"date-time":"2009-09-03T00:00:00Z","timestamp":1251936000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/karger.com\/pages\/terms-and-conditions"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Arch Allergy Immunol"],"abstract":"<jats:p>Our previous studies have shown that the inhibition of neutral endopeptidase, an enzyme which degrades tachykinins, increases anaphylactic contraction of guinea pig tracheal smooth muscle. Anaphylactic release of tachykinin-like substances was indicated. To investigate this observation further, we examined the effects of phosphoramidon, an inhibitor of a neutral endopeptidase, on contraction induced by mediators of anaphylaxis. Phosphoramidon significantly increased histamine- and leukotriene D4-induced contractions of tracheal rings from unsensitized animals (by 14 and 48%, respectively), but failed to alter the contractile responses to prostaglandins D2 and F2\u03b1. In tracheal rings preincubated with tachykinin antagonist-[D-Pro4, D-Trp7, 9]-substance P(4-11), or in capsaicin-desensitized tracheal rings, phosphoramidon did not change histamine- and leukotriene D4-induced contractions. In the second part of the study, performed on tracheal rings obtained from ovalbumin-sensi-tized guinea pigs, we examined the effects of phosphoramidon on contractile responses to histamine and leukotrienes which are released after antigen challenge. The incubation of tracheal rings with H1-histamine receptor antagonist (diphenhydramine HCl) or leukotriene receptor antagonist (ICI 198.615) prevented a phosphoramidpn-dependent increase of antigen-induced contraction. These results indicate that histamine and leukotrienes may be involved in the anaphylactic release of tachykinin-like substances or other neutral endopeptidase substratum.<\/jats:p>","DOI":"10.1159\/000236641","type":"journal-article","created":{"date-parts":[[2009,9,15]],"date-time":"2009-09-15T08:17:46Z","timestamp":1253002666000},"page":"286-292","source":"Crossref","is-referenced-by-count":5,"title":["Phosphoramidon Augments Contraction of Guinea Pig Tracheal Smooth Muscle Induced by Histamine and Leukotriene-D4"],"prefix":"10.1159","author":[{"given":"Neven","family":"Tudori\u0107","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert L.","family":"Coon","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zeljko J.","family":"Bosnjak","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"127","published-online":{"date-parts":[[2009,9,3]]},"container-title":["International Archives of Allergy and Immunology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/236641","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/karger.com\/article-pdf\/doi\/10.1159\/000236641","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T11:20:42Z","timestamp":1777634442000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000236641"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,9,3]]},"references-count":0,"URL":"https:\/\/doi.org\/10.1159\/000236641","archive":["Portico"],"relation":{},"ISSN":["1018-2438","1423-0097"],"issn-type":[{"value":"1018-2438","type":"print"},{"value":"1423-0097","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,9,3]]}}}