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Int Arch Allergy Immunol ; 164(3): 200-6, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25034302

RESUMO

BACKGROUND: Hazelnut allergy shows distinct clinical patterns that can be predicted through component-resolved diagnosis. However, identification of sensitization profiles remains incomplete. METHODS: Sera of 75 patients allergic to hazelnuts, 14 infants with atopic dermatitis (AD) sensitized to hazelnuts, 15 hazelnut-tolerant individuals with specific IgE (sIgE) to hazelnuts and 15 healthy control individuals were tested for sIgE reactivity to rCor a 1.04, rCor a 8, nCor a 9, nCor a 11, rCor a 14, rBet v 1, rBet v 2 and cross-reactive carbohydrate determinants (CCDs). RESULTS: Sensitization to Cor a 14 was observed in 18 out of 20 preschool children, 8 out of 10 school-aged children and 2 out of 7 adults with generalized reactions and in 3 out of 14 infants with AD. Only 2 out of 38 patients with an oral allergy syndrome (OAS) were sensitized to Cor a 14. No sensitization to Cor a 14 was observed in the group of hazelnut-tolerant and healthy control individuals. Sensitization to Cor a 1.04 was seen in 36 out of 38 OAS patients and in 14 out of 37 patients with generalized reactions. However, only 3 patients with generalized reactions were monosensitized to Cor a 1.04. Sensitization to Cor a 9 was observed in 26 out of 37 patients with generalized reactions and in 4 out of 14 infants with AD. Sensitization to Cor a 11, Cor a 8, rBet v 2 and CCDs was rare. CONCLUSIONS: Sensitization to Cor a 14 can have early onset and shows age-related variations. Together with Cor a 9, Cor a 14 enables us to correctly identify almost 90% of children with generalized reactions to hazelnut.


Assuntos
Alérgenos/imunologia , Antígenos de Plantas/imunologia , Corylus/imunologia , Hipersensibilidade a Noz/imunologia , Albuminas 2S de Plantas/imunologia , Adolescente , Adulto , Criança , Pré-Escolar , Humanos , Imunoglobulina E/sangue , Imunoglobulina E/imunologia , Lactente , Recém-Nascido , Técnicas de Diagnóstico Molecular , Proteínas de Plantas/imunologia , Adulto Jovem
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