Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFBA |
Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/5344 |
Resumo: | Acesso restrito: Texto completo. p. 1-9. |
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Andrade, Bruno BezerrilSantos, Cristiane J. N.Camargo, Luís Marcelo AranhaSouza Neto, Sebastião MartinsReis Filho, AntonioClarêncio, JorgeMendonça, Vitor Rosa Ramos deLuz, Nívea FariasCamargo, Erney PlessmannBarral, Aldina Maria PradoSilva, Antônio A. M.Barral-Netto, ManoelAndrade, Bruno BezerrilSantos, Cristiane J. N.Camargo, Luís Marcelo AranhaSouza Neto, Sebastião MartinsReis Filho, AntonioClarêncio, JorgeMendonça, Vitor Rosa Ramos deLuz, Nívea FariasCamargo, Erney PlessmannBarral, Aldina Maria PradoSilva, Antônio A. M.Barral-Netto, Manoel2012-02-08T18:43:30Z20111932-6203http://www.repositorio.ufba.br/ri/handle/ri/5344v. 6, n. 5.Acesso restrito: Texto completo. p. 1-9.Background: Areas that are endemic for malaria are also highly endemic for hepatitis B virus (HBV) infection. Nevertheless, it is unknown whether HBV infection modifies the clinical presentation of malaria. This study aimed to address this question. Methodology and Findings: An observational study of 636 individuals was performed in Rondoˆ nia, western Amazon, Brazil between 2006 and 2007. Active and passive case detections identified Plasmodium infection by field microscopy and nested Polymerase Chain Reaction (PCR). HBV infections were identified by serology and confirmed by real-time PCR. Epidemiological information and plasma cytokine profiles were studied. The data were analyzed using adjusted multinomial logistic regression. Plasmodium-infected individuals with active HBV infection were more likely to be asymptomatic (OR: 120.13, P,0.0001), present with lower levels of parasitemia and demonstrate a decreased inflammatory cytokine profile. Nevertheless, co-infected individuals presented higher HBV viremia. Plasmodium parasitemia inversely correlated with plasma HBV DNA levels (r =20.6; P = 0.0003). Conclusion: HBV infection diminishes the intensity of malaria infection in individuals from this endemic area. This effect seems related to cytokine balance and control of inflammatory responses. These findings add important insights to the understanding of the factors affecting the clinical outcomes of malaria in endemic regions.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-02-08T18:43:30Z No. of bitstreams: 1 journal.pone.0019841.pdf: 623458 bytes, checksum: 238db9e3472a568aa80adabda35bdbc4 (MD5)Made available in DSpace on 2012-02-08T18:43:30Z (GMT). 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dc.title.pt_BR.fl_str_mv |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
dc.title.alternative.pt_BR.fl_str_mv |
Plos one |
title |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
spellingShingle |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon Andrade, Bruno Bezerril |
title_short |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
title_full |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
title_fullStr |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
title_full_unstemmed |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
title_sort |
Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon |
author |
Andrade, Bruno Bezerril |
author_facet |
Andrade, Bruno Bezerril Santos, Cristiane J. N. Camargo, Luís Marcelo Aranha Souza Neto, Sebastião Martins Reis Filho, Antonio Clarêncio, Jorge Mendonça, Vitor Rosa Ramos de Luz, Nívea Farias Camargo, Erney Plessmann Barral, Aldina Maria Prado Silva, Antônio A. M. Barral-Netto, Manoel |
author_role |
author |
author2 |
Santos, Cristiane J. N. Camargo, Luís Marcelo Aranha Souza Neto, Sebastião Martins Reis Filho, Antonio Clarêncio, Jorge Mendonça, Vitor Rosa Ramos de Luz, Nívea Farias Camargo, Erney Plessmann Barral, Aldina Maria Prado Silva, Antônio A. M. Barral-Netto, Manoel |
author2_role |
author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Andrade, Bruno Bezerril Santos, Cristiane J. N. Camargo, Luís Marcelo Aranha Souza Neto, Sebastião Martins Reis Filho, Antonio Clarêncio, Jorge Mendonça, Vitor Rosa Ramos de Luz, Nívea Farias Camargo, Erney Plessmann Barral, Aldina Maria Prado Silva, Antônio A. M. Barral-Netto, Manoel Andrade, Bruno Bezerril Santos, Cristiane J. N. Camargo, Luís Marcelo Aranha Souza Neto, Sebastião Martins Reis Filho, Antonio Clarêncio, Jorge Mendonça, Vitor Rosa Ramos de Luz, Nívea Farias Camargo, Erney Plessmann Barral, Aldina Maria Prado Silva, Antônio A. M. Barral-Netto, Manoel |
description |
Acesso restrito: Texto completo. p. 1-9. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2012-02-08T18:43:30Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://www.repositorio.ufba.br/ri/handle/ri/5344 |
dc.identifier.issn.none.fl_str_mv |
1932-6203 |
dc.identifier.number.pt_BR.fl_str_mv |
v. 6, n. 5. |
identifier_str_mv |
1932-6203 v. 6, n. 5. |
url |
http://www.repositorio.ufba.br/ri/handle/ri/5344 |
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eng |
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http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0019841 |
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