Abstract
We have studied the effects of tachykinin-depletion on airway microvascular leakage induced by allergen challenge in ovalbumin-sensitised guinea pigs. Tachykinin-depletion was obtained by capsaicin pretreatment 1 week before inhaled allergen challenge. Capsaicin pretreatment did not change airway microvascular permeability induced by allergen challenge. Thus, sensory neuropeptides may not be important in allergen-induced acute airway microvascular leakage in guinea pig in vivo.
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