title: The relationship between bronchial histamine reactivity and atopic status.
abstract: It has been proposed that increased production of IgE, a feature of atopy, is a cause of the non-specific bronchial hyper-reactivity that is characterisitc of asthma. This hypothesis was examined by selecting groups of subjects with asthma or rhinitis and a group of healthy control subjects and studying the relationship between their bronchial histamine reactivity and their atopic status. In none of the groups tested was there a significant association between the degree of bronchial histamine reactivity and either the serum level of total IgE or the number of extracts of aeroallergens giving positive prick test reactions.
mesh_terms: D001249:Asthma / Q000276:immunology; D001980:Bronchi / Q000187:drug effects* / Q000276:immunology; D006632:Histamine / Q000494:pharmacology*; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000276:immunology*; D007073:Immunoglobulin E / Q000032:analysis; D012882:Skin Tests
chemical_list: D007073:Immunoglobulin E; D006632:Histamine