Cashew and pistachio, and pecan and walnut cross-react the most. Among the birch-negatives, prevalences of nut sensitizations decrease from early childhood to adolescence. Traduzioni in contesto per 'Cross-reactivity has' in inglese-italiano da Reverso Context: Cross-reactivity has also been frequently observed to other substances containing profilin, e.g., hazel-nut, ragweed pollen, mango, mugwort pollen, timothy pollen, celery, carrot, peanut and spices. Conclusionīirch-sensitized individuals are frequently cosensitized to hazelnut, almond, and peanut. Cosensitizations between nuts and birch were similar in Lapland with its lower birch-pollen exposure. The majority of nut-sensitized patients (71% hazelnut, 83% almond, 73% peanut) reported no or mild symptoms. Cashew and pistachio (ρ = 0.66 P < 0.001) and pecan and walnut (ρ = 0.65 P < 0.001) correlated the strongest. In a subgroup without birch sensitization, young children (<5 years) were most commonly nut-sensitized (8–40%) and this prevalence decreased in adolescents and further in adults (4–12%). ![]() Of subjects with birch sensitization, 84% were cosensitized to hazelnut, 71% to almond, and 60% to peanut. Data were gathered also from Lapland to examine sensitizations in an area with less birch-pollen exposure. One group of 1589 patients was surveyed for symptoms. Cross-reactivities were analyzed with hierarchical clustering. Nut sensitizations were analyzed both with and without cosensitization to birch and stratified into age-categories. MethodsĪll subjects with skin prick tests (SPTs) for birch pollen conducted during 1997–2013 in the Skin and Allergy Hospital in Helsinki ( n = 114 572) and their available SPTs for nuts ( n = 50 604) were included. ![]() The aim was to study sensitizations to nuts in individuals sensitized to birch pollen and examine cross-reactivities between birch and nut species. Sensitization to birch pollen causes cross-sensitization to nuts, but rarely leads to clinical nut allergy.
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