Goat's milk allergy

Tavares, B; Pereira, C; Rodrigues, F; Loureiro, G; Chieira, C

http://hdl.handle.net/10400.4/251

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Abstract(s)

BACKGROUND: Goat's milk (GM) allergy not associated with allergy to cow's milk (CM) is a rare disorder. Caseins have been implicated has the major allergens eliciting symptoms. METHODS: We report the case of a 27 years-old female patient that experienced two episodes of urticaria related to ingestion of goat's cheese (GC). She tolerated CM, dairy products and sheep cheese. Skin prick tests were performed with GM, CM, bovine casein and alpha -lactalbumin and fresh milk and GC. Serum specific IgE to GM, CM and its fractions, and GM and CM immunobloting assays with inhibition were also evaluated. RESULTS: Skin tests were positive to GM and GC and negative to CM. GM immunoblot showed an IgE-binding 14 kDa band that was totally inhibited after serum pre-incubation with GM. CONCLUSIONS: Allergens other than casein can be involved in allergy to GM. Even small quantities of protein can elicit symptoms.