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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
23/05/2018 |
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Data da última atualização: |
23/05/2018 |
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Autoria: |
MESQUITA, L. P.; COSTA, R. C.; NOGUEIRA, C. I.; ABREU, C. C.; ORLANDO, D. R.; ASCARI JUNIOR, I.; PECONICK, A. P.; VARASCHIN, M. S. |
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Afiliação: |
Leonardo P. Mesquita, Departamento de Patologia/FMVZ /Universidade de São Paulo - USP; Rafael C. Costa, Departamento de Patologia/FMVZ /Universidade de São Paulo - USP; Clayton I. Nogueira, Departamento de Medicina Veterinária/Universidade Federal de Lavras - UFLA; Camila C. Abreu, Departamento de Medicina Veterinária/Universidade Federal de Lavras - UFLA; Débora R. Orlando, Departamento de Medicina Veterinária/Universidade Federal de Lavras - UFLA; Ivan Ascari Junior, Departamento de Zootecnia/UFLA; Ana Paula Peconick, Departamento de Medicina Veterinária/Universidade Federal de Lavras - UFLA; Mary S. Varaschin, Departamento de Medicina Veterinária/Universidade Federal de Lavras - UFLA. |
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Título: |
Placental lesions associated with abortion and stillbirth in goats naturally infected by Neospora caninum. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 3, p. 444-449, março 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Lesões placentárias associadas a abortos e natimortos em cabras naturalmente infectadas pelo Neospora caninum. |
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Conteúdo: |
Neospora caninum has been described as a parasite that sporadically causes reproductive problems in goats. Several aspects of the pathogenesis of neosporosis in naturally infected goats remain to be established. The aims of the present study were to characterize the placental lesions in goats naturally infected by N. caninum and to evaluate several diagnostic techniques for effective detection of this protozoan in the goat placenta. Some placentas in this study originated from abortion and stillbirth in which there were severe lesions. The lesions were characterized mainly by necrosis involving the mesenchyme of the chorionic villi and trophoblast cells often alongside mononuclear inflammation and in some cases with neutrophilic infiltration. N. caninum DNA was detected in these placentas, but parasite structures were not visualized through immunohistochemistry (IHC). However, five of 11 placentas from N. caninum-infected goats that gave birth to healthy kids had histological lesions characterized by mononuclear inflammation. Of these 11 placentas, N. caninum DNA was detected in seven, and N. caninum tachyzoites were detected in only one of these seven placentas using IHC. The present study demonstrates that severe lesions in the placenta are associated with abortion and stillbirth in caprine neosporosis and the placental alterations are likely involved in abortion pathogenesis. Moreover, the results highlight the importance of using more than one diagnostic technique for the detection of the protozoan in placentas because N. caninum cannot be reliably detected by histological and immunohistochemical tests. MenosNeospora caninum has been described as a parasite that sporadically causes reproductive problems in goats. Several aspects of the pathogenesis of neosporosis in naturally infected goats remain to be established. The aims of the present study were to characterize the placental lesions in goats naturally infected by N. caninum and to evaluate several diagnostic techniques for effective detection of this protozoan in the goat placenta. Some placentas in this study originated from abortion and stillbirth in which there were severe lesions. The lesions were characterized mainly by necrosis involving the mesenchyme of the chorionic villi and trophoblast cells often alongside mononuclear inflammation and in some cases with neutrophilic infiltration. N. caninum DNA was detected in these placentas, but parasite structures were not visualized through immunohistochemistry (IHC). However, five of 11 placentas from N. caninum-infected goats that gave birth to healthy kids had histological lesions characterized by mononuclear inflammation. Of these 11 placentas, N. caninum DNA was detected in seven, and N. caninum tachyzoites were detected in only one of these seven placentas using IHC. The present study demonstrates that severe lesions in the placenta are associated with abortion and stillbirth in caprine neosporosis and the placental alterations are likely involved in abortion pathogenesis. Moreover, the results highlight the importance of using more than one diagnostic technique for th... Mostrar Tudo |
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Palavras-Chave: |
Imuno-histoquímica; Infecção transplacentária; Natimorto; Necrotizing placentitis; Placentite necrotizante. |
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Thesagro: |
Aborto; Cabra; Caprino; Neospora Caninum; Neosporose; Protozoário. |
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Thesaurus Nal: |
Abortion (animals); Fetal death; Goats; Immunohistochemistry; Neosporosis; Protozoa; Transplacental transmission. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/177579/1/Placental-lesions-associated-with-abortion-and-stillbirth.pdf
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Marc: |
LEADER 03011naa a2200433 a 4500
001 2091882
005 2018-05-23
008 2018 bl uuuu u00u1 u #d
100 1 $aMESQUITA, L. P.
245 $aPlacental lesions associated with abortion and stillbirth in goats naturally infected by Neospora caninum.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Lesões placentárias associadas a abortos e natimortos em cabras naturalmente infectadas pelo Neospora caninum.
520 $aNeospora caninum has been described as a parasite that sporadically causes reproductive problems in goats. Several aspects of the pathogenesis of neosporosis in naturally infected goats remain to be established. The aims of the present study were to characterize the placental lesions in goats naturally infected by N. caninum and to evaluate several diagnostic techniques for effective detection of this protozoan in the goat placenta. Some placentas in this study originated from abortion and stillbirth in which there were severe lesions. The lesions were characterized mainly by necrosis involving the mesenchyme of the chorionic villi and trophoblast cells often alongside mononuclear inflammation and in some cases with neutrophilic infiltration. N. caninum DNA was detected in these placentas, but parasite structures were not visualized through immunohistochemistry (IHC). However, five of 11 placentas from N. caninum-infected goats that gave birth to healthy kids had histological lesions characterized by mononuclear inflammation. Of these 11 placentas, N. caninum DNA was detected in seven, and N. caninum tachyzoites were detected in only one of these seven placentas using IHC. The present study demonstrates that severe lesions in the placenta are associated with abortion and stillbirth in caprine neosporosis and the placental alterations are likely involved in abortion pathogenesis. Moreover, the results highlight the importance of using more than one diagnostic technique for the detection of the protozoan in placentas because N. caninum cannot be reliably detected by histological and immunohistochemical tests.
650 $aAbortion (animals)
650 $aFetal death
650 $aGoats
650 $aImmunohistochemistry
650 $aNeosporosis
650 $aProtozoa
650 $aTransplacental transmission
650 $aAborto
650 $aCabra
650 $aCaprino
650 $aNeospora Caninum
650 $aNeosporose
650 $aProtozoário
653 $aImuno-histoquímica
653 $aInfecção transplacentária
653 $aNatimorto
653 $aNecrotizing placentitis
653 $aPlacentite necrotizante
700 1 $aCOSTA, R. C.
700 1 $aNOGUEIRA, C. I.
700 1 $aABREU, C. C.
700 1 $aORLANDO, D. R.
700 1 $aASCARI JUNIOR, I.
700 1 $aPECONICK, A. P.
700 1 $aVARASCHIN, M. S.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 38, n. 3, p. 444-449, março 2018
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Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
29/08/2006 |
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Data da última atualização: |
01/06/2022 |
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Autoria: |
MELO, D. F.; MELLO, S. C. M.; ALMEIDA, A. M.; SILVA, J. B. T.; MENEZES, J. E. |
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Título: |
Efeito do fotoperíodo no crescimento e esporulação de Dicyma pulvinata. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 31, suppl., ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA. |
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Páginas: |
p. S252. |
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Idioma: |
Português |
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Palavras-Chave: |
Agente de biocontrole; Dicyma pulvinata; Mal-das-folhas. |
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Thesagro: |
Fungo; Microcyclus Ulei. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00784nam a2200217 a 4500
001 1185749
005 2022-06-01
008 2006 bl uuuu u00u1 u #d
100 1 $aMELO, D. F.
245 $aEfeito do fotoperíodo no crescimento e esporulação de Dicyma pulvinata.$h[electronic resource]
260 $aFitopatologia Brasileira, v. 31, suppl., ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA.$c2006
300 $ap. S252.
650 $aFungo
650 $aMicrocyclus Ulei
653 $aAgente de biocontrole
653 $aDicyma pulvinata
653 $aMal-das-folhas
700 1 $aMELLO, S. C. M.
700 1 $aALMEIDA, A. M.
700 1 $aSILVA, J. B. T.
700 1 $aMENEZES, J. E.
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