POSTER PRESENTATION Open Access Functional genomics of the peripheral blood response to allergen inhalation challenge

In asthmatic individuals, airway narrowing represents the early phase of the asthmatic response to allergen inhalation challenge, occurring within thirty minutes [1]. In 50-60 % of allergic asthmatic adults, the early response is followed by the late phase asthmatic response, usually starting between 3-4 hours after aller-gen inhalation challenge [2], and characterized mainly by cellular inflammation of the airway [3]. The pathways leading to the late response are not completely under-stood. Understanding these pathways is important for evaluating allergic diseases such as asthma. In contrast to the more transient isolated early response, develop-ment of the late response is associated with the hall-mark inflammatory features of chronic allergic disease. Method