Hepatitis B Infection Is Associated with Asymptomatic Malaria in the Brazilian Amazon

Detalhes bibliográficos
Autor(a) principal: Andrade, Bruno Bezerril
Data de Publicação: 2011
Outros Autores: 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
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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spelling 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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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.
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