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  • Title: Correlation of anti-Pru p 3 IgE levels with severity of peach allergy reactions in children.
    Author: Novembre E, Mori F, Contestabile S, Rossi ME, Pucci N.
    Journal: Ann Allergy Asthma Immunol; 2012 Apr; 108(4):271-4. PubMed ID: 22469448.
    Abstract:
    BACKGROUND: Peach allergy is regarded as one of the most important fresh fruit allergies. Data are available on the state-of-the-art diagnosis, including food challenges, and a component-resolved diagnosis. However, the roles played by different peach allergens with respect to symptom severity are not completely understood. OBJECTIVE: To evaluate the role of serum specific IgE to peach and recombinant allergens in the diagnosis of peach allergies in Italian children. METHODS: Forty-four children with peach allergy confirmed by a placebo-controlled food challenge were divided into 2 groups based on their symptom severity: patients with mild oral allergy syndrome (OAS) and patients with systemic symptoms (SS). The presence of specific IgE to peach and rPru p 1, rPru p 3, and rPru p 4 was determined. RESULTS: The presence of specific IgE to Pru p 4 and Pru p 1 was found significantly more frequently in patients with OAS, whereas specific IgE to Pru p 3 was not found significantly more frequently in patients with SS. Only anti-rPru p 4 IgE levels were significantly higher in patients with OAS, whereas no significant differences were found in anti-rPru p 1 and anti-rPru p 3 IgE levels between patients with OAS compared with patients with SS. CONCLUSION: In Italian children with peach allergies, the presence of specific IgE to Pru p 3 is not associated with SS, and the levels of specific IgE to Pru p 3 do not correlate with the severity of the reactions.
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