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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Eberlein, Bernadette Krischan, Lilian Darsow, Ulf Ollert, Markus Ring, Johannes |
| Description | Country affiliation: Germany Author Affiliation: Eberlein B ( Department of Dermatology and Allergy Biederstein, Technische Universität München, Munich, Germany. eberlein@lrz.tum.de) |
| Abstract | BACKGROUND: Specific IgE (sIgE) antibodies to both bee and wasp venom can be due to a sensitivity to both insect venoms or due to cross-reactive carbohydrate determinants (CCDs). OBJECTIVE: Investigating whether a basophil activation test (BAT) with both venoms as well as with bromelain and horseradish peroxidase (HRP) or recombinant allergen-based IgE testing can improve the diagnostic procedure. METHODS: Twenty-two Hymenoptera-venom allergic patients with sIgE antibodies to both bee and wasp venom were studied. sIgE antibodies to MUXF3 CCD, bromelain, HRP, rApi m 1, and rVes v 5 were determined, and a BAT (Flow2 CAST) with venom extracts, bromelain, and HRP was performed. Further recombinant allergen-based IgE testing was done by using an ELISA, if required. The reactivity of basophils was calculated from the insect venom concentration at half-maximum stimulation. RESULTS: Double positivity/double negativity/single positivity to rApi m 1 and rVes v 5 was seen in 12/1/9 patients. Further recombinant allergen-based IgE testing in the last ones revealed positive results to the other venom in all cases except one. BAT was double positive/double negative/single positive in 6/2/14 patients. Four patients with negative results in sIgE antibodies to CCDs had positive results in BAT. BAT with bromelain/HRP showed a sensitivity of 50%/81% and a specificity of 91%/90%. CONCLUSION: Component-resolved IgE testing elucidates the pattern of double positivity, showing a majority of true double sensitizations independent of CCD sensitization. BAT seems to add more information about the culprit insect even if the true clinical relevance of BAT is not completely determined because of ethical limitations on diagnostic sting challenges. BAT with HRP is a good method to determine sensitivity to CCDs. |
| File Format | HTM / HTML |
| ISSN | 00916749 |
| e-ISSN | 10976825 |
| Journal | Journal of Allergy and Clinical Immunology |
| Issue Number | 1 |
| Volume Number | 130 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Immunology Allergens Basophils Immunology Bee Venoms Hypersensitivity, Immediate Diagnosis Immunoglobulin E Blood Recombinant Proteins Wasp Venoms Genetics Animals Antigens, Cd63 Carbohydrates Cross Reactions Hymenoptera Etiology Insect Proteins Phospholipases A Sensitivity And Specificity Evaluation Studies Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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