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Updated: Aug 17, 2026

Measuring Local Anaphylaxis in Mice
Published on: October 14, 2014
Constitutively raised serum concentrations of mast-cell tryptase and severe anaphylactic reactions to Hymenoptera
Abstract:
Anaphylactic IgE-mediated reactions to Hymenoptera stings vary in their severity for reasons that are not clear. We investigated patients with a history of systemic anaphylatic reactions to honeybee or wasp stings. Nine (75%) of 12 patients with raised tryptase concentrations but only 28 (28%) of 102 patients with lower tryptase concentrations, had a history of severe sting reactions (p=0.004). Raised baseline serum concentrations of mast-cell tryptase and mastocytosis are potential risk factors for severe allergic reactions to Hymenoptera venom.
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