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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
10/03/2016 |
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Data da última atualização: |
10/03/2016 |
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Autoria: |
HEADLEY, S. A.; BRACARENSE, A. P. F. R. L.; OLIVEIRA, V. H. S.; QUEIROX, G. R.; OKANO, W.; ALFIERI, A. F.; FLAIBAN, K. K. M.; LISBÔA, J. A. N.; ALFIERI, A. A. |
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Afiliação: |
SELWYN A. HEADLEY, UEL; ANA PAULA F. R. L. BRACARENSE, UEL; VICTOR H. S. OLIVEIRA, UEL; GUSTAVO R. QUEIROZ, UEL; WERNER OKANO, Universidade Norte do Paraná; ALICE F. ALFIERI, UEL; KARINA K. M. C. FLAIBAN, UEL; JÚLIO A. N. LISBÔA, UEL; AMAURI A. ALFIERI, UEL. |
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Título: |
Histophilus somni-induced thrombotic meningoencephalitis in cattle from northern Paraná, Brazil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF, v. 35. n. 4, p. 329-336, abr. 2015. |
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Idioma: |
Português |
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Conteúdo: |
Thrombotic meningoencephalitis (TME) is a fatal neurological disease of cattle, predominantly from North America, that is caused by Histophilus somni with sporadic descriptions from other countries. This manuscript describes the occurrence of spontaneous TME in cattle from northern Paraná, Brazil. Most cattle had acute neurological manifestations characteristic of brain dysfunction. Hematological and cerebrospinal fluid analyses were not suggestive of bacterial infections of the brain. Histopathology revealed meningoencephalitis with vasculitis and thrombosis of small vessels that contained discrete neutrophilic and/or lymphocytic infiltrates admixed with fibrin at the brainstem, cerebral cortex, and trigeminal nerve ganglion of all animals. All tissues from the central nervous system used during this study were previously characterized as negative for rabies virus by the direct immunofluorescence assay. PCR and RT-PCR assays investigated the participation of infectious agents associated with bovine neurological disease by targeting specific genes of H. somni, Listeria monocytogenes, bovine herpesvirus -1 and -5, bovine viral diarrhea virus, and ovine herpesvirus-2. PCR and subsequent sequencing resulted in partial fragments of the 16S rRNA gene of H. somni from brain sections of all animals with histopathological diagnosis of TME; all other PCR/RT-PCR assays were negative. These findings confirmed the participation of H. somni in the neuropathological disease observed in these animals, extend the geographical distribution of this disease, and support previous findings of H. somni from Brazil. MenosThrombotic meningoencephalitis (TME) is a fatal neurological disease of cattle, predominantly from North America, that is caused by Histophilus somni with sporadic descriptions from other countries. This manuscript describes the occurrence of spontaneous TME in cattle from northern Paraná, Brazil. Most cattle had acute neurological manifestations characteristic of brain dysfunction. Hematological and cerebrospinal fluid analyses were not suggestive of bacterial infections of the brain. Histopathology revealed meningoencephalitis with vasculitis and thrombosis of small vessels that contained discrete neutrophilic and/or lymphocytic infiltrates admixed with fibrin at the brainstem, cerebral cortex, and trigeminal nerve ganglion of all animals. All tissues from the central nervous system used during this study were previously characterized as negative for rabies virus by the direct immunofluorescence assay. PCR and RT-PCR assays investigated the participation of infectious agents associated with bovine neurological disease by targeting specific genes of H. somni, Listeria monocytogenes, bovine herpesvirus -1 and -5, bovine viral diarrhea virus, and ovine herpesvirus-2. PCR and subsequent sequencing resulted in partial fragments of the 16S rRNA gene of H. somni from brain sections of all animals with histopathological diagnosis of TME; all other PCR/RT-PCR assays were negative. These findings confirmed the participation of H. somni in the neuropathological disease observed in th... Mostrar Tudo |
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Palavras-Chave: |
Histofilose; Histophilosis; Histophilus somni; Meningoencefalite trombótica; Molecular diagnostics; Neuropatologia; Sistema nervoso central; Thrombotic meningoencephalitis. |
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Thesagro: |
Bovino; Doença. |
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Thesaurus Nal: |
Cattle diseases; Central nervous system; Neuropathology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/140966/1/Histophilus-somni-induced.pdf
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Marc: |
LEADER 02758naa a2200373 a 4500
001 2040463
005 2016-03-10
008 2015 bl uuuu u00u1 u #d
100 1 $aHEADLEY, S. A.
245 $aHistophilus somni-induced thrombotic meningoencephalitis in cattle from northern Paraná, Brazil.$h[electronic resource]
260 $c2015
520 $aThrombotic meningoencephalitis (TME) is a fatal neurological disease of cattle, predominantly from North America, that is caused by Histophilus somni with sporadic descriptions from other countries. This manuscript describes the occurrence of spontaneous TME in cattle from northern Paraná, Brazil. Most cattle had acute neurological manifestations characteristic of brain dysfunction. Hematological and cerebrospinal fluid analyses were not suggestive of bacterial infections of the brain. Histopathology revealed meningoencephalitis with vasculitis and thrombosis of small vessels that contained discrete neutrophilic and/or lymphocytic infiltrates admixed with fibrin at the brainstem, cerebral cortex, and trigeminal nerve ganglion of all animals. All tissues from the central nervous system used during this study were previously characterized as negative for rabies virus by the direct immunofluorescence assay. PCR and RT-PCR assays investigated the participation of infectious agents associated with bovine neurological disease by targeting specific genes of H. somni, Listeria monocytogenes, bovine herpesvirus -1 and -5, bovine viral diarrhea virus, and ovine herpesvirus-2. PCR and subsequent sequencing resulted in partial fragments of the 16S rRNA gene of H. somni from brain sections of all animals with histopathological diagnosis of TME; all other PCR/RT-PCR assays were negative. These findings confirmed the participation of H. somni in the neuropathological disease observed in these animals, extend the geographical distribution of this disease, and support previous findings of H. somni from Brazil.
650 $aCattle diseases
650 $aCentral nervous system
650 $aNeuropathology
650 $aBovino
650 $aDoença
653 $aHistofilose
653 $aHistophilosis
653 $aHistophilus somni
653 $aMeningoencefalite trombótica
653 $aMolecular diagnostics
653 $aNeuropatologia
653 $aSistema nervoso central
653 $aThrombotic meningoencephalitis
700 1 $aBRACARENSE, A. P. F. R. L.
700 1 $aOLIVEIRA, V. H. S.
700 1 $aQUEIROX, G. R.
700 1 $aOKANO, W.
700 1 $aALFIERI, A. F.
700 1 $aFLAIBAN, K. K. M.
700 1 $aLISBÔA, J. A. N.
700 1 $aALFIERI, A. A.
773 $tPesquisa Veterinária Brasileira, Brasília, DF$gv. 35. n. 4, p. 329-336, abr. 2015.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
15/04/2015 |
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Data da última atualização: |
31/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
BATISTA, E. S. de P.; AUAD, A. M.; ANDALÓ, V.; MONTEIRO, C. M. de O. |
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Afiliação: |
ELDER SIMÕES DE PAULA BATISTA, UFJF; ALEXANDER MACHADO AUAD, CNPGL; VANESSA ANDALÓ, UFLA; CAIO M. de O. MONTEIRO, UFRRJ. |
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Título: |
Virulence of entomopathogenic nematodes (Rhabditida: Steinernematidae, Heterorhabditidae) to spittlebug Mahanarva spectabilis (Hemiptera: Cercopidae). |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Arquivos do Instituto Biológico, v. 81, n. 2, p. 145-149, 2014. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Microbial control. |
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Thesaurus NAL: |
Heterorhabditis; pastures; Steinernema. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122399/1/Cnpgl-2014-ArqInstBiol-Virulence.pdf
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Marc: |
LEADER 00664naa a2200193 a 4500
001 2013613
005 2024-01-31
008 2014 bl uuuu u00u1 u #d
100 1 $aBATISTA, E. S. de P.
245 $aVirulence of entomopathogenic nematodes (Rhabditida$bSteinernematidae, Heterorhabditidae) to spittlebug Mahanarva spectabilis (Hemiptera: Cercopidae).$h[electronic resource]
260 $c2014
650 $aHeterorhabditis
650 $apastures
650 $aSteinernema
653 $aMicrobial control
700 1 $aAUAD, A. M.
700 1 $aANDALÓ, V.
700 1 $aMONTEIRO, C. M. de O.
773 $tArquivos do Instituto Biológico$gv. 81, n. 2, p. 145-149, 2014.
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Embrapa Gado de Leite (CNPGL) |
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