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Recombinant marker allergens in diagnosis of patients with allergic rhinoconjunctivitis to tree and grass pollens.
MedLine Citation:
PMID:  21711974     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: The aim of this study was to investigate recombinant marker allergens in patients with allergic rhinoconjunctivitis to tree and grass pollens.
METHODS: Sera of 260 tree pollen- and 282 grass pollen-allergic patients were analyzed. Bet v 1 and Phl p 1/p 5 were used as marker allergens for allergies to pollen from birch and grasses. Profilin (Bet v 2 and Phl p 12) and calcium-binding protein (Bet v 4 and Phl p 7) were used as markers for polysensitization.
RESULTS: Two hundred thirty-nine (92%) patients tested positive for IgE anti-Bet v 1. All of them were positive for IgE antibodies against natural birch extract (t3), hazel (t4), and alder (t2). Bet v 1 in combination with t3 identified allergies from related trees with a sensitivity of 99.2%. Two hundred fifty-six patients (91%) tested positive for IgE anti-Phl p 1 and/or anti-Phl p 5. All of them were positive for IgE antibodies against natural timothy (g6) and rye (g12) extract. Phl p 1/p 5 and natural timothy extract identified allergies from grasses and rye with a sensitivity of 99.3%. All Patients reacting to the cross-reactive allergens Bet v 2, Phl p 12, Bet v 4, and Phl p 7 were polysensitized.
CONCLUSION: Bet v 1 in combination with natural birch pollen extract identifies allergies from related trees with a sensitivity of 99.2%. Phl p 1, Phl p 5, and natural timothy extract identifies allergies from grasses and rye in 99.3%. Reactivity to the allergens Bet v 2, Phl p 12, Bet v 4, and Phl p 7 identifies polysensitization and cross-reactivity.
Authors:
Martin Canis; Moritz Gröger; Sven Becker; Christine Klemens; Matthias F Kramer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of rhinology & allergy     Volume:  25     ISSN:  1945-8932     ISO Abbreviation:  Am J Rhinol Allergy     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-06-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101490775     Medline TA:  Am J Rhinol Allergy     Country:  United States    
Other Details:
Languages:  eng     Pagination:  36-9     Citation Subset:  IM    
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, University of Munich, Munich, Germany.
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