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Allergic Reactions02:06

Allergic Reactions

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Updated: Jun 4, 2025

Application of Biochip Microfluidic Technology to Detect Serum Allergen-specific Immunoglobulin E sIgE
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Novel diagnostics in food allergy.

Holly Boyd1, Alexandra F Santos1

  • 1Department of Women and Children's Health (Pediatric Allergy), School of Life Course Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, London, United Kingdom; Children's Allergy Service, Evelina London Children's Hospital, Guy's and St Thomas' Hospital, London, United Kingdom.

The Journal of Allergy and Clinical Immunology
|December 22, 2024
PubMed
Summary

Accurate food allergy diagnosis is crucial to prevent severe reactions and unnecessary restrictions. New tests and AI integration promise improved precision, reducing the need for oral food challenges.

Keywords:
Food allergybasophil activation testbiomarkersdiagnosisepitopesmast cell activation testomicsskin prick testspecific IgE

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Area of Science:

  • Immunology
  • Allergy Diagnostics

Background:

  • Increasing food allergy prevalence impacts quality of life.
  • Misdiagnosis or delayed diagnosis carries significant risks, from social limitations to anaphylaxis.

Purpose of the Study:

  • To review recent advances in food allergy diagnostic approaches.
  • To highlight how novel methods can enhance clinical decision-making.

Main Methods:

  • Review of current diagnostic methods: clinical history, IgE tests, oral food challenge.
  • Exploration of emerging biomarkers: basophil activation test, peptide-specific IgE.
  • Discussion of future technologies: alternative samples, AI integration.

Main Results:

  • Component testing and optimized cutoffs have improved accuracy.
  • Oral food challenges remain necessary for many patients.
  • Novel biomarkers and technologies are entering clinical practice.

Conclusions:

  • Improved diagnostic accuracy is essential for precise food allergy diagnosis.
  • New tests and AI can reduce reliance on oral food challenges.
  • Combining tests and utilizing advanced tools will enhance patient care and dietary management.