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Allergenic components of bald-faced hornet (V. maculata) venom

S Littler, J I Wypych, R W Noble

International Archives of Allergy and Applied Immunology

|January 1, 1985

Abstract:

Bald-faced hornet (V. maculata) venom collected by electrical stimulation was fractionated using molecular exclusion gel-filtration and ion-exchange chromatography. Four fractions were selected for in-depth analysis. These were analyzed for phospholipase, hyaluronidase and protease enzyme activities, antigenicity as measured by reaction with anti-hornet venom rabbit serum, and allergenic activity, as determined by RAST reaction with sera from hornet-sensitive patients. The results of these studies suggest that the fractions containing phospholipase, hyaluronidase and protease possess allergenic activity. In addition, there appear to be other allergenic components in hornet venom. Allergic patients differ in their reactivity to the various allergenic components in hornet venom and may have IgE antibodies to one or more of these components.

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