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Schistosoma mansoni infection is associated with a reduced course of asthma

Medeiros, Manoel, Figueiredo, Joanemile P., Almeida, Maria C., Matos, Maria Analia, Araújo, Maria I., Cruz, Alvaro A., Atta, Ajax M., Rego, Marco Antonio V., de Jesus, Amélia R., Taketomi, Ernesto A., Carvalho, Edgar M.·2003·Journal of Allergy and Clinical Immunology
DOI 10.1067/mai.2003.1381
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Abstract

Background Helminthic infections decrease skin reactivity to indoor allergens, but data on whether they influence asthma severity are lacking. Objective This study evaluated the course of asthma in patients with and without Schistosoma mansoni infection. Methods Asthmatic subjects were enrolled from 3 low-socioeconomic areas: a rural area endemic for schistosomiasis (group 1) in addition to a rural area (group 2) and a slum area (group 3), both of which were not endemic for schistosomiasis. A questionnaire on the basis of the International Study of Asthma and Allergies in Childhood study was applied in these 3 areas, and from each area, 21 age- and sex-matched asthmatic subjects were selected for a prospective 1-year study. Pulmonary function tests, skin prick tests with indoor allergens, stool examinations, and serum evaluations were performed in these subjects. Every 3 months, the subjects were evaluated for asthma exacerbation through physical examination, and a questionnaire regarding asthma symptoms and use of antiasthma medicine was administered. Results The prevalence of S mansoni infection was greater in group 1 compared with in groups 2 and 3 (P Conclusion Our results suggest that S mansoni infection is associated with a milder course of asthma.

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Research works printed but not linked: 27

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Metadata

Authors
Medeiros, M., Figueiredo, J. P., Almeida, M. C., Matos, M. A., Araújo, M. I., Cruz, A. A., Atta, A. M., Rego, M. A. V., de Jesus, A. R., Taketomi, E. A., & Carvalho, E. M.
Venue
Journal of Allergy and Clinical Immunology
Publisher
Elsevier BV
Published
2003-05
Volume
111
Issue
5
Pages
947-951
ISSN
0091-6749
DOI
10.1067/mai.2003.1381
Cited by
134
References
1
Language
en
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)

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