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  • Title: Comparison of vespid venoms collected by electrostimulation and by venom sac extraction.
    Author: Mueller U, Reisman R, Wypych J, Elliott W, Steger R, Walsh S, Arbesman C.
    Journal: J Allergy Clin Immunol; 1981 Oct; 68(4):254-61. PubMed ID: 7288046.
    Abstract:
    Venoms of three vespid species, yellow jacket, bald-faced hornet, and yellow hornet, obtained by either electrostimulation of venom sac extraction were compared with regard to their enzymatic activity, antigenicity, and allergenicity. Phospholipase a, phospholipase B, and hyaluronidase enzymatic activities were present in all six preparations. The activity of venom sac extracts lay in the range found in different batches of venoms obtained by electrostimulation for each species. Analysis of sera from vespid-sensitive patients in the radioallergosorbent test (RAST) with discs coupled with either venom sac extracts or venoms obtained by electrostimulation showed a good correlation of the results within all three species (r = 0.95). In RAST inhibition the potency of venom sac extracts and venom obtained by electrostimulation was similar for each species. Analysis of rabbit antisera to the six preparations revealed similar patterns in immunoelectrophoresis and identity reactions between the major antigens within each species. Tissue protein contamination was detected in all venom sac extracts but not in venoms obtained by electrostimulation.
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