Tazanolast administered before ozone exposure at doses of 30, 100, or 300 mg/kg inhibits ozone-induced airway hyperresponsiveness in a dose-dependent manner. Tazanolast administered after ozone exposure does not inhibit the airway hyperresponsiveness. Tazanolast does not significantly change the cell distribution of bronchoalveolar lavage (BAL) cells at 2 h after the exposure. Tazanolast significantly inhibits ozone-induced airway hyperresponsiveness in guinea pigs.
参考文献:
1. Igarashi A, et al. Tazanolast inhibits ozone-induced airway hyperresponsiveness in guinea pigs. Am J Respir Crit Care Med. 1998 May;157(5 Pt 1):1531-5.