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Rev. Inst. Med. Trop. Säo Paulo ; 52(4): 203-206, July-Aug. 2010. graf, mapas, tab
Article in English | LILACS | ID: lil-557408

ABSTRACT

The present study intended to analyze the seroprevalence of Helicobacter pylori, IgG, and its relation to dyspepsia in a population from the western Amazon region. During the "Projeto Bandeira Científica", a University of São Paulo Medical School program, in Monte Negro's rural areas, state of Rondônia, 266 blood samples were collected from volunteers. The material was tested for IgG antibodies anti-Helicobacter pylori by ELISA method and the participants were also interviewed on dyspepsia, hygiene and social aspects. Participants aged between five and 81 years old (34 years on average), 149 (56 percent) were female and 117 (44 percent) male. We found 210 (78.9 percent) positive, 50 (18.8 percent) negative and six (2.3 percent) undetermined samples. Dyspeptic complaints were found in 226 cases (85.2 percent). There was no statistical association between dyspepsia and positive serology for H. pylori. We concluded that the seroprevalence in all age categories is similar to results found in other studies conducted in developing countries, including those from Brazil. On the other hand, the seroprevalence found in Monte Negro was higher than that reported in developed countries. As expected, there was a progressive increase in the positivity for H. pylori in older age groups.


Este trabalho tem por objetivo analisar a soroprevalência do Helicobacter pylori, IgG, em população rural da Amazônia, e sua correlação com queixa dispéptica. No Projeto Bandeira Científica da FMUSP, em Monte Negro - RO, foram coletadas 266 amostras sangüíneas nos assentamentos rurais do município. Foram pesquisados anticorpos da classe IgG dirigidos contra Helicobacter pylori pelo método ELISA e aplicados questionários sobre dispepsia, aspectos sociais e epidemiológicos. Os pacientes tinham idades entre cinco e 81 anos (média de 34 anos); 149 (56 por cento) do sexo feminino e 117 (44 por cento) do sexo masculino. Foram encontradas 210 (78.9 por cento) amostras positivas, 50 negativas (18.8 por cento) e seis indeterminadas (2.3 por cento). A queixa de dispepsia foi encontrada em 226 casos (85.2 por cento). Não houve associação significativa entre os sintomas dispépticos e a soro positividade para H. pylori. Concluímos que a soro prevalência para todas as faixas etárias é comparável com os resultados de outros estudos realizados em países em desenvolvimento, e maior que aquela encontrada nos países desenvolvidos. Houve aumento progressivo da positividade com a idade, como citado na literatura.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Young Adult , Antibodies, Bacterial/blood , Dyspepsia/microbiology , Helicobacter Infections/diagnosis , Helicobacter pylori/immunology , Immunoglobulin G/blood , Brazil/epidemiology , Dyspepsia/epidemiology , Helicobacter Infections/complications , Helicobacter Infections/epidemiology , Rural Population , Seroepidemiologic Studies
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