Airways are More Reactive to Histamine than to Methacholine in Patients with Mild Airway Hyperresponsiveness Regardless of Atopy

摘要

BackgroundThe airway muscles from allergen-sensitized animals in vitro show a heightened response to histamine, but not to carbachol. This study investigated whether the airway responsiveness to histamine in vivo is comparable to that of methacholine in human subjects with varying degrees of atopy.