Usefulness of specific IgE antibody tests: a progress report

Area of Science:

• Immunology
• Allergy Diagnostics
• Clinical Chemistry

Background:

• Allergic diseases are increasing globally, necessitating objective diagnostic tools.
• Differentiating allergic reactions from other conditions with similar symptoms is challenging.
• Historical assays for specific IgE (s-IgE) antibodies faced challenges in standardization and performance.

Purpose of the Study:

• To review the history, challenges, advancements, and current state of specific IgE (s-IgE) antibody assays.
• To provide readers with an understanding of s-IgE assay development and utility.
• To highlight the importance of objective methods in allergy diagnosis.

Main Methods:

• Comprehensive review of peer-reviewed literature in the field of s-IgE assays.
• Selection of key articles by the author to focus on significant developments and findings.
• Analysis of clinical and analytical studies on s-IgE test performance.

Main Results:

• Significant variability existed in the conclusions of clinical and analytical studies regarding s-IgE test performance.
• Test outcomes were influenced by methodology, allergens, patient selection, and comparison standards.
• Despite past limitations, surviving s-IgE assays have improved due to regulation and economic factors, though some still fall short of analytical ideals.

Conclusions:

• Accurate, quantitative, and objective s-IgE measurement methods are now available.
• These advanced assays are effective in clarifying allergic diagnoses when integrated with clinical history.
• Objective diagnostic tools are essential for managing the rise in allergic diseases.