Monday, 8 December 2014
Exhibition Hall-Poster Area (Sul America)
Mônica Camargo Sopelete, PhD
,
Instituto De Ciências Biomédicas, Universidade Federal De Uberlândia, Uberlândia, Brazil
Luciene Aparecida José Vaz
,
Faculdade De Educação Física e Fisioterapia, Universidade Federal De Uberlândia, Uberlândia, Brazil
Ernesto Akio Taketomi, PhD
,
Instituto De Ciências Biomédicas, Universidade Federal De Uberlândia, Uberlândia, Brazil
Ernesto Akio Taketomi, PhD
,
Instituto De Ciências Biomédicas, Universidade Federal De Uberlândia, Uberlândia, Brazil
Background: Several grass pollen allergens have been isolated and described. In Brazil, the grass pollen contributes to many cases of pollen allergic diseases, and
Lolium multiflorum (ryegrass) is the major cause of pollinosis. However, other allergenic species have also been reported. The aim of this study was to compare the sensitization to
Cynodon dactylon and
Paspalum notatum grass pollen extracts with house dust mites, pet epithelia, molds and cockroach allergenic extracts and, other allergenic grass pollen extracts to skin prick tests (SPT).
Methods: Were performed SPT and ISAAC questionnaire in 50 patients with allergic rhinitis in Uberlândia, Minas Gerais.
Results: The frequency of positivity to SPT was 86% to Dermatophagoides pteronyssinus and D. farinae, 74% to Blomia tropicalis, 12% to mixed grass pollen extract, 34% to L. multiflorum, 16% to C. dactylon and, 14% to P. notatum extracts. From of the 50 patients addressed in this study, 02 (4%) were reactive only to P. notatum pollen extract, demonstrating the possibility of allergenic monosensitization.
Conclusions: It is of utmost importance to develop in future more complex studies to characterization of major allergens and the degree of cross-reactivity between C. dactylon and P. notatum pollen and other allergenic grass, in order to increase the in vivo diagnosis and to allergen-specific immunotherapy indications.
