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A Comparison Study Between Ragweed-Specific IgG4 as Measured by RAST and FAST

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A solid phase Sepharose-based RIA (IgG4 RAST) was compared to the IgG4 FAST enzyme immunoassay for measurements of Ragweed-specific IgG4. Although FAST reagents were used, a standard serum of known antibody content along with modifications in the FAST assay were necessary to attempt to develop a quantitative assay. Various assay parameters such as precision, reproducibility, sensitivity and parallelism were examined. Specificity of the monoclonal anti-IgG4 used in the FAST was not evaluated. Conditions and method of assay for the two systems differed substantially, particularly in the short incubation time for the IgG4 determinations.

Document Type: Research Article


Publication date: 1987-11-01

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  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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