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Dried fruit hypersensitivity and its correlation with pollen allergy.

P Amat Par1, J Sanosa Valls, M Lluch Pérez

  • 1Inmunolab, Barcelona, Spain.

Allergologia Et Immunopathologia
|January 1, 1990
PubMed
Summary

Almond hypersensitivity is common in patients with dried fruit allergy and respiratory issues, confirmed by skin and blood tests. Peach allergy also affects nearly half of these patients.

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Area of Science:

  • Allergy and Immunology
  • Clinical Diagnostics
  • Food Hypersensitivity

Background:

  • Patients with dermo-respiratory pathology often exhibit hypersensitivity to dried fruits.
  • Comprehensive diagnostic approaches are crucial for identifying specific allergens.

Purpose of the Study:

  • To evaluate diagnostic methods for dried fruit hypersensitivity in patients with dermo-respiratory conditions.
  • To identify the most common dried fruit allergens and associated pollen sensitivities.

Main Methods:

  • Utilized in vivo (skin tests) and in vitro (histamine release, specific IgE) tests on 102 patients.
  • Assessed immunoglobulin and complement levels, including circulating immune complexes.
  • Correlated clinical history with diagnostic test results for various foods and aeroallergens.

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Main Results:

  • Almond was the most sensitizing dried fruit, showing high correlation across diagnostic methods (up to 89%).
  • Peach hypersensitivity was identified in 47% of patients.
  • Significant associations were found between food allergy and tree pollen (51%), weeds (27%), and grasses (25%).
  • Complement levels did not differ significantly from controls.
  • Diagnostic agreement was positive for almond and peanut but negative for hazelnut.

Conclusions:

  • Almond and peanut allergies show good correlation between clinical history and diagnostic tests.
  • Diagnostic strategies should consider almond and peach as frequent triggers in this patient group.
  • The study highlights the link between food allergies and pollen hypersensitivity, particularly tree pollen.