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Association of MS Pi phenotype with airway hyperresponsiveness
R G Townley1, J G Southard, P Radford
1Allergic Disease Center, Creighton University, Omaha.
Chest
|September 1, 1990
Abstract:
Asthmatic families (AFs) and normal families (NFs) were studied to determine the relationship between bronchial hyperresponsiveness and alpha 1-antitrypsin protease inhibitor phenotype. We studied IgE levels, skin test scores, and methacholine sensitivity. In both the AF and NF groups, the subjects with the MS phenotype had significantly greater methacholine-induced bronchial hyperresponsiveness sensitivity than the MM and MZ subjects. These findings suggest that the S allele may be associated with bronchial hyperresponsiveness.