Isolated lungs of allergen-sensitized and -challenged mice showed increased AR after MCh inhalation or infusion as well as after specific proocation with aerosolized allergen.

• 吸入或输注乙酰甲胆碱或经特殊过敏源气溶胶刺激后，已经被过敏源致敏的小鼠离体肺组织表现出气道高反应性。