we conclude that in asymptomatic subjects with ragweed hypersensitivity , ( 1 ) central and peripheral airway function is more abnormal in subjects with bronchial asthma than in subjects with allergic rhinitis , ( 2 ) subjects of both groups show quantitatively and qualitatively comparable airway responses during antigen challenge with a decrease in sgaw or an increase in visov , possibly representing increase in central and/or peripheral airflow resistance , respectively , ( 3 ) visov may be a more sensitive indicator of airway response to antigen challenge than sgaw , and ( 4 ) the bronchodilator effects of a beta adrenergic agonist on antigen-induced bronchospasm are similar in both groups .
C0004096
bronchial asthma
C1334103
allergic rhinitis