The Effect of Leukotriene D<sub>4</sub> on the Patency of Nasal Passage in the Guinea Pig

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  • Joong Saeng Cho
    Department of Otolaryngology, College of Medicine, Kyung-Hee University, Seoul, Korea
  • Chang Cha
    Department of Otolaryngology, College of Medicine, Kyung-Hee University, Seoul, Korea
  • Dong Yeup Lee
    Department of Otolaryngology, College of Medicine, Kyung-Hee University, Seoul, Korea
  • Kotaro Ukai
    Department of Otolaryngology, Mie University, Tsu, Japan
  • Yasuo Sakakura
    Department of Otolaryngology, Mie University, Tsu, Japan

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<jats:p> We investigated the effect of leukotriene D<jats:sub>4</jats:sub>(LTD<jats:sub>4</jats:sub>) on the patency of the nasal passage in nonsensitized and sensitized guinea pigs (GPs). The change in nasal patency was measured by acoustic rhinomanometry (AR). The change of volume from the nostril to 2 cm into the nasal cavity showed significant reduction at 30 minutes and 6 hours after instillation of LTD<jats:sub>4</jats:sub> in nonsensitized GPs. These findings were also seen in nonsensitized and sensitized GPs with systemic administration of carboxyl cellulose. However, neither nonsensitized nor sensitized GP with systemic administration of benzopyren hemihydrate(ONO-1078) showed any changes in nasal patency. These results indicated that the LT was a potent medication to induce nasal obstruction of late reaction in GP. </jats:p>

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