A rapid test for soy aeroallergens exposure assessment

Area of Science:

• Environmental Science
• Allergy and Immunology
• Biotechnology

Background:

• Assessing health risks from airborne soy aeroallergens is crucial.
• Current enzyme immunoassays (EIA) require specialized labs and personnel.
• Environmental monitoring of soy aeroallergens is limited.

Purpose of the Study:

• To develop and evaluate a rapid immunochromatography assay for soy aeroallergens.
• To provide a simple, field-deployable method for detecting soy aeroallergens.

Main Methods:

• Developed a test strip using gold-labeled antibodies against soy hull low molecular weight extract (SHLMWE).
• Analyzed 119 airborne samples using the strip assay and compared with anti-SHLMWE sandwich EIA.
• Assay results were interpreted visually and by densitometry.

Main Results:

• The rapid test detected soy aeroallergens from 6.25 to 25 ng/mL.
• Substantial agreement (Kappa=0.63) among visual interpretations.
• Good concordance with EIA, showing sensitivity (77.3-100%) and specificity (65-83.5%).
• Strong correlation between strip assay densitometry and EIA.

Conclusions:

• The developed strip assay is rapid, simple, sensitive, and requires no special equipment or skills.
• It holds significant potential for environmental monitoring of soy aeroallergens, especially in port cities.
• The test can improve soy allergy patient management by enabling environmental exposure control.