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Updated: Nov 1, 2025

Application of Biochip Microfluidic Technology to Detect Serum Allergen-specific Immunoglobulin E sIgE
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Update on Type-1 Allergy Diagnostics.

Regina Treudler1, Jan-Christoph Simon2

  • 1Department of Dermatology, Venereology and Allergology, Leipzig Interdisciplinary Allergy Centre - Comprehensive Allergy Centre, University Medicine Leipzig, Leipzig, Germany. regina.treudler@uniklinik-leipzig.de.

Handbook of Experimental Pharmacology
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Summary
This summary is machine-generated.

Accurate diagnosis of type-1 allergy involves medical history and advanced tests like component-resolved diagnostics (CRD). CRD enhances allergy management by identifying specific molecular sensitizations, improving risk assessment and treatment decisions.

Keywords:
Component-resolved diagnosticsDiagnosticsProvocation testReviewSkin prick testType-1 allergy

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Area of Science:

  • Immunology
  • Allergology
  • Clinical Diagnostics

Background:

  • Type-1 allergy diagnosis traditionally relies on clinical evaluation and in vivo tests like skin prick tests.
  • Limited availability of diagnostic extracts for skin tests poses challenges.
  • Serum immunoglobulin E (IgE) testing is a cornerstone of in vitro allergy diagnostics.

Purpose of the Study:

  • To review current diagnostic approaches for type-1 allergy.
  • To highlight the advancements and benefits of molecular diagnostics (component-resolved diagnostics - CRD).
  • To emphasize the importance of correlating test results with clinical relevance.

Main Methods:

  • Review of established diagnostic methods including medical history, clinical examination, skin prick tests, and intradermal tests.
  • Analysis of in vitro diagnostics such as total and specific serum IgE.
  • Focus on molecular diagnostics (CRD) for identifying specific allergen molecules.
  • Mention of basophil activation tests and biomarker determination (e.g., tryptase).
  • Inclusion of in vivo provocation tests for clinical relevance assessment.

Main Results:

  • Component-resolved diagnostics (CRD) significantly improve the management of type-1 allergies.
  • CRD offers increased analytic sensitivity, detects cross-reactivity, and defines individual sensitization profiles.
  • CRD aids in risk assessment and guides decisions regarding allergen immunotherapy.
  • Distinguishing clinically relevant reactions from non-relevant ones remains crucial.

Conclusions:

  • Molecular diagnostics (CRD) represent a significant advancement in type-1 allergy diagnosis and management.
  • CRD enables personalized risk assessment and treatment strategies.
  • Clinical correlation remains essential for interpreting allergy test results and guiding patient care.