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Airborne allergy to sunflower seed.

Author information

  • 1Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano (MI), Italy. r.asero@libero.it

Abstract

BACKGROUND:

There is increasing evidence that bird fanciers may develop airborne allergies to unusual allergens.

OBJECTIVE:

To detect the allergen source in a bird fancier with a history of asthma associated with bird cage cleaning activities and with contact with a Brazil parrot.

METHODS:

SPT with a large series of both airborne and food allergens were carried out. IgE reactivity to allergens causing wheal and flare reactions was confirmed by in-vitro investigations including ELISA/ELISA inhibition and immunoblot analysis.

RESULTS:

Strong skin reactivity to sunflower seed was observed. Immunoblot analysis showed IgE reactivity to low m.w. proteins, most probably 2S albumin, and ELISA inhibition studies showed the absence of cross-reactivity to mustard.

CONCLUSION:

Sunflower seed dust may sensitize patients via the respiratory tract. Differently from previously reported cases of sunflower seed allergy, no cross-reactivity to 2S albumin from botanically unrelated seeds was found.

PMID:
15552720
[PubMed - indexed for MEDLINE]
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