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The oral allergy syndrome.

C Ortolani1, M Ispano, E Pastorello

  • 1Bizzozero Medical Division Allergy and Immunology Center, Ospedale Niguarda Cà Granda, Milan, Italy.

Annals of Allergy
|December 1, 1988
PubMed
Summary

Most hay fever patients with oral allergy syndrome experience symptoms after eating fruits and vegetables. Pollen allergies, particularly to birch and grass, are frequently linked to specific food allergies in these patients.

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Area of Science:

  • Allergen immunotherapy
  • Clinical immunology
  • Food allergy research

Background:

  • Hay fever (allergic rhinitis) and oral allergy syndrome (OAS) are common allergic conditions.
  • OAS often presents as localized itching or swelling in the mouth after consuming certain fruits and vegetables.
  • Understanding the link between pollen allergies and OAS is crucial for patient management.

Purpose of the Study:

  • To investigate the relationship between hay fever and oral allergy syndrome in patients consuming fruits and vegetables.
  • To identify specific pollen-allergen associations with OAS triggers.
  • To analyze the connection between the age of onset of hay fever and OAS.

Main Methods:

  • Retrospective study of 262 patients with hay fever and OAS.
  • Utilized patient history, Radioallergosorbent testing (RAST), and skin prick testing for pollen allergens.
  • Correlated allergic responses to specific pollens with reported OAS symptoms after food ingestion.

Main Results:

  • A high prevalence of concurrent systemic and local symptoms was observed in most patients.
  • A significant correlation was found between the age of hay fever onset and OAS onset.
  • Frequent associations identified: apple, carrot, pear, and cherry with birch pollen; tomato, melon, and watermelon with grass pollen.

Conclusions:

  • Hay fever and OAS frequently coexist, with significant links to specific pollen allergies.
  • Early onset of hay fever may predict OAS development.
  • Specific pollen-food syndromes exist, informing dietary recommendations for allergic individuals.

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