Abstract
PurposeRoyal jelly and honeycomb are commonly consumed in China, and anaphylaxis caused by ingestion of royal jelly is rare. To date, there is no report of anaphylaxis after ingestion of royal jelly in China. Its cross-reactivity with honeycomb is still unclear.Case ReportA 56-year-old Chinese female experienced two episodes of anaphylaxis within 1 hour after ingestion of royal jelly within one month. After avoiding royal jelly and other bee products, no anaphylactic reaction occurred again. The skin prick test and basophil activation test showed positive reactivity to royal jelly and honeycomb. In immunoblotting and immunoblotting inhibition tests, a 60 kDa protein was recognized in royal jelly and cross-reactivity with honeycomb. The mass spectrometry data revealed that the 62kDa protein belongs to major royal jelly protein 3.ConclusionOur data suggest that major royal jelly protein 3 of royal jelly is a main allergen that induces anaphylaxis and cross-reactivity with honeycomb. Therefore, the patient was allergic to royal jelly to avoid other bee products.
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