A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children

Detalhes bibliográficos
Autor(a) principal: Coimbra, Roney Santos
Data de Publicação: 2014
Outros Autores: Calegare, Bruno Frederico Aguilar, Candiani, Talitah Michel Sanchez, D’Almeida, Vânia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da FIOCRUZ (ARCA)
Texto Completo: https://www.arca.fiocruz.br/handle/icict/10147
Resumo: Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Belo Horizonte, MG, Brazil.
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spelling Coimbra, Roney SantosCalegare, Bruno Frederico AguilarCandiani, Talitah Michel SanchezD’Almeida, Vânia2015-04-30T16:55:38Z2015-04-30T16:55:38Z2014COIMBRA, Roney Santos et al. A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children. BMC Clinical Pathology, v. 14, p. 43, 20141472-6890https://www.arca.fiocruz.br/handle/icict/1014710.1186/1472-6890-14-43engBioMed CentralA putative role for homocysteine in the pathophysiology of acute bacterial meningitis in childreninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Belo Horizonte, MG, Brazil.Universidade Federal de São Paulo. Departamento de Fisiobiologia. São Paulo, SP, Brazil.Fundação Hospitalar de Minas Gerais. Hospital Infantil João Paulo II. Belo Horizonte, MG, BrazilUniversidade Federal de São Paulo. Departamento de Fisiobiologia. São Paulo, SP, Brazil.Background: Acute bacterial meningitis frequently causes cortical and hippocampal neuron loss leading to permanent neurological sequelae. Neuron death in acute bacterial meningitis involves the excessive activation of NMDA receptors and p53-mediated apoptosis, and the latter is triggered by the depletion of NAD + and ATP cellular stores by the DNA repair enzyme poly(ADP-ribose) polymerase. This enzyme is activated during acute bacterial meningitis in response to DNA damage induced, on its turn, by reactive oxygen and nitrogen species. An excess of homocysteine can also induce this cascade of events in hippocampal neurons. The present work aimed at investigating the possible involvement of homocysteine in the pathophysiology of meningitis by comparing its concentrations in cerebrospinal fluid (CSF) samples from children with viral or acute bacterial meningitis, and control individuals. Methods: Homocysteine and cysteine concentrations were assessed by high-performance liquid chromatography in CSF samples from nine patients with acute bacterial meningitis, 13 patients with viral meningitis and 18 controls (median age: 4 years-old; range: <1 to 13) collected by lumbar puncture at admission at the Children's Hospital Joao Paulo II - FHEMIG, from January 2010 to November 2011. Results: We found that homocysteine accumulates up to neurotoxic levels within the central nervous system of patients with acute bacterial meningitis, but not in those with viral meningitis or control individuals. No correlation was found between homocysteine and cysteine concentrations and the cerebrospinal fluid standard cytochemical parameters. Conclusions: Our results suggest that HCY is produced intrathecally in response to acute bacterial meningitis and accumulates within the central nervous system reaching potentially neurotoxic levels. This is the first work to propose a role for HCY in the pathophysiology of brain damage associated with acute bacterial meningitis.Acute bacterial meningitisHomocysteineNeurotoxicityinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZLICENSElicense.txtlicense.txttext/plain; charset=utf-82352https://www.arca.fiocruz.br/bitstream/icict/10147/1/license.txtafbdf7d7a9bcf771a1cc7edf5f618413MD51ORIGINAL2014_198.pdf2014_198.pdfapplication/pdf159307https://www.arca.fiocruz.br/bitstream/icict/10147/2/2014_198.pdffd184d5598daf80e1d8ade4e11ecd865MD52TEXT2014_198.pdf.txt2014_198.pdf.txtExtracted texttext/plain19056https://www.arca.fiocruz.br/bitstream/icict/10147/3/2014_198.pdf.txtba0760a3ca8600fc821f562fb04019d2MD53icict/101472019-06-19 10:06:32.386oai:www.arca.fiocruz.br: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ório InstitucionalPUBhttps://www.arca.fiocruz.br/oai/requestrepositorio.arca@fiocruz.bropendoar:21352019-06-19T13:06:32Repositório Institucional da FIOCRUZ (ARCA) - Fundação Oswaldo Cruz (FIOCRUZ)false
dc.title.pt_BR.fl_str_mv A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
title A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
spellingShingle A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
Coimbra, Roney Santos
Acute bacterial meningitis
Homocysteine
Neurotoxicity
title_short A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
title_full A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
title_fullStr A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
title_full_unstemmed A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
title_sort A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children
author Coimbra, Roney Santos
author_facet Coimbra, Roney Santos
Calegare, Bruno Frederico Aguilar
Candiani, Talitah Michel Sanchez
D’Almeida, Vânia
author_role author
author2 Calegare, Bruno Frederico Aguilar
Candiani, Talitah Michel Sanchez
D’Almeida, Vânia
author2_role author
author
author
dc.contributor.author.fl_str_mv Coimbra, Roney Santos
Calegare, Bruno Frederico Aguilar
Candiani, Talitah Michel Sanchez
D’Almeida, Vânia
dc.subject.en.pt_BR.fl_str_mv Acute bacterial meningitis
Homocysteine
Neurotoxicity
topic Acute bacterial meningitis
Homocysteine
Neurotoxicity
description Fundação Oswaldo Cruz. Centro de Pesquisa Rene Rachou. Belo Horizonte, MG, Brazil.
publishDate 2014
dc.date.issued.fl_str_mv 2014
dc.date.accessioned.fl_str_mv 2015-04-30T16:55:38Z
dc.date.available.fl_str_mv 2015-04-30T16:55:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv COIMBRA, Roney Santos et al. A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children. BMC Clinical Pathology, v. 14, p. 43, 2014
dc.identifier.uri.fl_str_mv https://www.arca.fiocruz.br/handle/icict/10147
dc.identifier.issn.none.fl_str_mv 1472-6890
dc.identifier.doi.none.fl_str_mv 10.1186/1472-6890-14-43
identifier_str_mv COIMBRA, Roney Santos et al. A putative role for homocysteine in the pathophysiology of acute bacterial meningitis in children. BMC Clinical Pathology, v. 14, p. 43, 2014
1472-6890
10.1186/1472-6890-14-43
url https://www.arca.fiocruz.br/handle/icict/10147
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv reponame:Repositório Institucional da FIOCRUZ (ARCA)
instname:Fundação Oswaldo Cruz (FIOCRUZ)
instacron:FIOCRUZ
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