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Sensitization to other foods in subjects with reported allergy to grapes

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The grape is widely produced and consumed in the Mediterranean area. The object of this prospective study was to present in detail the clinical features of patients with documented immunoglobulin E (IgE)–mediated reactions to grapes or its products as well as the existing cosensitizations in other food allergens among this population. Sixty-one patients (27 male patients and 34 female patients), aged 14–52 years (mean, 28.8 years) with a documented history of IgE-mediated reactions to grapes or its products (wine, juice, and wine vinegar) were included in this study. In each patient, full allergological data, clinical examination, and specific in vivo (skin-prick tests and prick-to-prick) and in vitro (grape-specific IgE) evaluations were recorded. The diagnostic procedure was extended in other food allergens and molds for exclusion of fruit surface contamination. Thirty-seven of 61 (60.7%) patients had a positive personal history and 24/61 (39.3%) patients had a family history of atopy. Patients reported 3.1 episodes/patient (range, 1–15 episodes) after consumption of grapes or its product. Forty-seven of 61 (77%) patients had presented oral allergy syndrome after eating grapes before the first reported reaction. The mean time for the onset of symptoms was 42 minutes (4–160 minutes). Forty-four of 61 (72.1%) patients reported more than one reaction. The observed prevalence of symptomatology according to the system involved was determined: skin, 57/61(93.4%) patients; respiratory, 46/61(75.4%) patients; cardiovascular, 27/61 (44.3%) patients; and gastrointestinal, 24/61(39.3%) patients. The main cosensitizations were identified (skin-prick tests): apples, 81.9%; peaches, 70.5%; cherries, 47.5%; strawberries, 32.8%; peanuts, 49.2%; walnuts, 42.6%; hazelnuts, 31.1%; almonds, 26.2%; and pistachios, 29.5%. The grape and its products may be the offending agent of IgE-mediated reactions in sensitized individuals. The high prevalence of concomitant reactivity to other fruits elicits the interest of clinical relevance of these findings among the grape-allergic population.

Document Type: Research Article

Publication date: 2006-01-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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