METHODS: Guinea pig lung membrane was used as experimental materials, 3H LTC 4 as radio ligand, FPL 55712 as positive control drug and Gn 3 as test drug.

• 方法:以豚鼠肺膜为实验材料,采用3HLTC4为放射配体,以FPL55712作阳性对照药物,Gn3为实验药物,进行药物竞争结合实验。