
Fifty-seven nasal and bronchial provocation tests were performed with bald cypress pollen extract (BCE) on 41 subjects. A positive nasal response was elicited in 12 of 17 (71%) subjects with allergic rhinitis and positive BCE skin tests, and in none of 16 control subjects. A positive bronchial challenge was elicited in two of ten extrinsic asthmatics with positive BCE skin tests, and in none of 14 control subjects. BCE-specific IgE was demonstrated by RAST in seven of the 12 (59%) subjects with a positive nasal challenge and in one of the two with a positive bronchial challenge. BC pollen is an aeroallergen.
Adult, Male, Nasal Provocation Tests, Adolescent, Tissue Extracts, Middle Aged, Bronchial Provocation Tests, Trees, Radioallergosorbent Test, Humans, Pollen, Female, Skin Tests
Adult, Male, Nasal Provocation Tests, Adolescent, Tissue Extracts, Middle Aged, Bronchial Provocation Tests, Trees, Radioallergosorbent Test, Humans, Pollen, Female, Skin Tests
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