Retrospective definition of reaction risk in Italian children with peanut, hazelnut and walnut allergy through component-resolved diagnosis
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M. Giovannini [3] ; D.G. Peroni [1] ; P. Comberiati [2] ; M. Piazza [2] ; E. Chiesa [2] ; G.L. Piacentini [2] ; A. Boner [2] ; G. Zanone [2]
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[1] University of Pisa
University of Pisa
Pisa, Italia
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[2] University of Verona
University of Verona
Verona, Italia
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[3] nna Meyer Children's University Hospital, Florence, Italy
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- Localización: Allergologia et immunopathologia: International journal for clinical and investigate allergology and clinical immunology, ISSN-e 1578-1267, ISSN 0301-0546, Vol. 47, Nº. 1, 2019, págs. 73-78
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Background Serum IgE evaluation of peanut, hazelnut and walnut allergens through the use of component-resolved diagnosis (CRD) can be more accurate than IgE against whole food to associate with severe or mild reactions.
Objectives The aim of the study was to retrospectively define the level of reaction risk in children with peanut, hazelnut and walnut sensitization through the use of CRD.
Methods 34 patients [n=22 males, 65%; median age eight years, interquartile range (IQR) 5.0–11.0 years] with a reported history of reactions to peanut and/or hazelnut and/or walnut had their serum analyzed for specific IgE (s-IgE) by ImmunoCAP® and ISAC® microarray technique.
Results In children with previous reactions to peanut, the positivity of Arah1 and Arah2 s-IgE was associated with a history of anaphylaxis to such food, while the positivity of Arah8 s-IgE were associated with mild reactions. Regarding hazelnut, the presence of positive Cora9 and, particularly, Cora14 s-IgE was associated with a history of anaphylaxis, while positive Cora1.0401 s-IgE were associated with mild reactions. Concerning walnut, the presence of positive Jug r 1, Jug r 2, Jug r 3 s-IgE was associated with a history of anaphylaxis to such food. ImmmunoCAP® proved to be more useful in retrospectively defining the risk of hazelnut anaphylaxis, because of the possibility of measuring Cor a14 s-IgE.
Conclusions Our data show that the use of CRD in patients with allergy to peanut, hazelnut and walnut could allow for greater accuracy in retrospectively defining the risk of anaphylactic reaction to such foods.
