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Measurement Specific IgE against Recombinant 16-kD and 19-kD Buckwheat Allergens for the Diagnosis of Buckwheat Allergy

Other Title
메밀 알레르기 진단에 있어서 16-kD 및 19-kD 재조합 알레르겐 특이 IgE 측정의 유용성
Authors
이, 재현; 이, 용원; 신, 유섭; 박, 해심; 홍, 천수; 박, 중원
Citation
Chʿŏnsik mit alrerugi, 30(3):209-215, 2010
Journal Title
Chʿŏnsik mit alrerugi; Journal of asthma, allergy and clinical immunology; Korean journal of asthma, allergy and clinical immunology; 천식 및 알레르기
ISSN
1226-8739
Abstract
Background: Buckwheat (BW, Fagopyrum esculentum)-specific IgE (sIgE) measurement is crucial to diagnose BW allergy. However, clinical application is difficult due to a high false-positive rate. Previously we identified 16-kD 2S storage albumin and 19-kD vicilin-like protein as BW major allergens.



Objective: To investigate clinical usefulness of sIgE measurements against recombinant 16- and 19-kD BW allergens compared to the skin prick test and measurement of specific IgE against whole buckwheat (WBW) extract.



Method: Eleven BW allergic patients, 11 asymptomatic sensitizers to BW and 16 non-atopic subjects were enrolled. We performed the skin prick test, sIgE measurement against recombinant 16- and 19-kD BW allergens and WBW extract using a CAP system.



Result: In BW allergic patients, sIgE against WBW extract, r16- and r19-kD BW allergens were detected in 10, 5 and 9 patients, respectively. In asymptomatic sensitizers, sIgE against WBW extract, r16- and r19-kD BW allergens were detected in 9, 1 and 2 patients respectively. In ROC analysis, the AUC value of sIgE level was higher in r19-kD allergen than in r16-kD or WBW extract.



Conclusion: We suggest that CAP sIgE against r19-kD and r16-kD BW allergens can be a diagnostic marker to discriminate BW allergic patients from asymptomatic sensitizers in a clinical setting.
Keywords
BuckwheatAllergyRecombinantAllergenSpecific IgE measurement
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Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
AJOU Authors
박, 해심
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