title: Beta-blocking autoantibodies in pediatric bronchial asthma.
abstract: We have used the inhibition of binding of a potent beta antagonist, iodohydroxybenzylpindolol, to canine lung-plasma membrane beta-adrenergic receptors as a test for beta-blocking autoantibodies in the sera of 376 mildly and severely asthmatic children. This binding inhibition assay, coupled with a variant test in which the binding assay was performed on selected sera (binding values below 2 SD from the mean) before and after immunodepletion of the sera (removal of IgG and IgA), permitted the conclusion that about 5% of the juvenile asthmatic population studied produce beta-blocking autoantibodies.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000276:immunology*; D001249:Asthma / Q000276:immunology*; D001323:Autoantibodies / Q000032:analysis*; D001666:Binding Sites, Antibody; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D017098:IgA Deficiency; D017099:IgG Deficiency; D008297:Male
chemical_list: D000319:Adrenergic beta-Antagonists; D001323:Autoantibodies