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Serum total IgE, ascaris lumbricoides specific IgE and eosinophils in parasites-infected children in a tropical area
World Allergy Organization Journal volume 8, page A223 (2015)
Background
This study investigated the relationship between total IgE and Ascaris lumbricoides specific IgE and eosinophils in children from endemic areas to assess the Th2-type immune response in a population that comprised 205 children with aged 1-10 years, and of low socioeconomic status.
Methods
Fecal samples were analysed by the methods of Blagg and Kato-katz. The serum levels of total IgE and A. lumbricoides specific IgE were determinated by ImmunoCAP (Pharmacia) and the eosinophils were counted in peripheral blood.
Results
The results showed a prevalence of 89% (182) for intestinal parasites. A. lumbricoides was detected in 140 (68%) children. The levels of total and specific IgE and eosinophils presented values above those of standard reference (median 480 KU/L and 0,74 KUA/L and 8%, respectively). Total IgE, A. lumbricoides specific IgE and eosinophils were significantly higher in the A. lumbricoides positive children as compared to A. lumbricoides negative ones (p = 0.02, <0.01 and 0.03).
Conclusions
Our results showed that parasites intestinal infection, particularly A. lumbricoides, induced a Th2-type immune response with production of the total and specific IgE and eosinophils.
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This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
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De Farias Sales, V.S., Silva, E.M.A., Medeiros, S.D.V. et al. Serum total IgE, ascaris lumbricoides specific IgE and eosinophils in parasites-infected children in a tropical area. World Allergy Organ J 8 (Suppl 1), A223 (2015). https://doi.org/10.1186/1939-4551-8-S1-A223
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DOI: https://doi.org/10.1186/1939-4551-8-S1-A223