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Related Experiment Videos

A 17-kDa allergen detected in pine nuts.

J M García-Menaya1, M A Gonzalo-Garijo, I Moneo

  • 1Allergy Department, Hospital Infanta Cristina, Badajoz, Spain.

Allergy
|February 7, 2001
PubMed
Summary

A patient experienced anaphylaxis after eating pine nuts, leading to the identification of a novel 17-kDa pine nut allergen. This finding advances understanding of pine nut allergy and its immunological basis.

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Area of Science:

  • Immunology
  • Allergology
  • Food Science

Background:

  • Pine nut allergy is rare, with limited documented cases.
  • Anaphylaxis is a severe systemic allergic reaction that can be life-threatening.

Observation:

  • A patient presented with anaphylaxis immediately following pine nut ingestion.
  • Diagnostic tests included skin prick tests and specific IgE measurements.

Findings:

  • The patient exhibited a positive skin prick test to pine nuts.
  • Specific IgE testing confirmed sensitization, and immunoblotting identified a 17-kDa protein.
  • This 17-kDa pine nut allergen showed sensitivity to reducing agents, altering its IgE-binding capacity.

Implications:

Related Experiment Videos

  • This study identifies a previously undescribed 17-kDa allergen in pine nuts responsible for IgE-mediated allergic reactions.
  • Understanding this specific allergen can improve diagnosis and management of pine nut allergy.
  • Further research into this allergen may reveal cross-reactivity patterns and inform allergen immunotherapy strategies.