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IgE-mediated allergy from vegetable allergens

C Ortolani1, E A Pastorello, L Farioli

  • 1BizzozZero Division, Ospedale Nigurada Ca' Granda, Milan, Italy.

Annals of Allergy
|November 1, 1993
PubMed
Summary
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Fresh fruit and vegetable allergies are typically IgE-mediated, causing local oral symptoms but sometimes leading to severe systemic reactions. Cross-reactivity with pollen allergens is common in these food allergies.

Area of Science:

  • Immunology
  • Allergology
  • Clinical Medicine

Background:

  • Food allergies, particularly to fresh fruits and vegetables, are increasingly recognized.
  • These allergies are primarily mediated by Immunoglobulin E (IgE) antibodies.
  • Clinical manifestations range from localized oral symptoms to severe systemic reactions.

Purpose of the Study:

  • To summarize the key clinical features and immunological basis of fresh fruit and vegetable allergies.
  • To highlight the association between these food allergies and pollen allergies.

Main Methods:

  • Review of clinical presentations and immunological mechanisms of IgE-mediated food allergies.
  • Analysis of reported cases and epidemiological data on fruit, vegetable, and pollen allergies.

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Main Results:

  • Oral allergy syndrome (e.g., itching, swelling) is the most common presentation.
  • Systemic reactions including urticaria, asthma, and anaphylaxis can occur.
  • Frequent clinical links exist between pollen-induced allergic rhinitis and food allergies due to cross-reactive antigens.

Conclusions:

  • IgE-mediated allergies to fresh produce present with diverse clinical outcomes.
  • Understanding cross-reactivity is crucial for managing patients with both pollen and food allergies.