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학술저널
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대한진단검사의학회 Annals of Laboratory Medicine Annals of Laboratory Medicine 제30권 제4호
발행연도
2010.1
수록면
420 - 431 (12page)

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Background : In vitro serum allergen-specific IgE tests have been routinely used in the clinical diagnosis of allergic diseases. We evaluated the clinical usefulness of a newly introduced multiple antigen screen test, Advansure Allergy Screen (LG Life Science, Korea) (LG-Screen) for the detection of allergen specific IgE. Methods : A total of 180 sera (80 for inhalant and 100 for food panels) were tested by LG-Screen and RIDA Allergy Screen (R-biopharm, Germany) (RIDA-Screen) assays. According to the 58-60 specific allergens or allergen groups, the positive rates and agreement rates were analyzed using the cut off levels of class 2. For the quantitation of total IgE and specific IgE, nephelometry and ImmunoCAP test were performed in the sera showing discrepant results between the two allergy screen assays. Results : The agreement rate and kappa value (k) of total IgE between the two allergy screen assays was 73.9% and 0.333. LG-Screen showed higher agreement rate with nephelometry than RIDA-Screen. The positive rates to common outdoor inhalant and food allergens were significantly higher in RIDA-Screen. Overall agreement rate of specific IgE between the two allergy screen assays for 58 allergens was 86.7% (6,086/7,020) (k, 0.293). In samples showing discrepant results between the two allergy screen assays, concordance rate of allergy screen assay with ImmunoCAP assay was 70.9% (449/633) for LG-Screen (k, 0.585) and 29.1% (184/633) for RIDA-Screen (k, -0.303). Conclusions : LG-Screen showed a favorable agreement with RIDA-Screen and ImmunoCAP assays, and it could be used for the detection of allergen specific IgE in the clinical laboratory. (Korean J Lab Med 2010;30:420-31)

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