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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
23/05/2018 |
Data da última atualização: |
23/05/2018 |
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. |
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. |
Título: |
Placental lesions associated with abortion and stillbirth in goats naturally infected by Neospora caninum. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 3, p. 444-449, março 2018 |
Idioma: |
Inglês |
Notas: |
Título em português: Lesões placentárias associadas a abortos e natimortos em cabras naturalmente infectadas pelo Neospora caninum. |
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 |
Palavras-Chave: |
Imuno-histoquímica; Infecção transplacentária; Natimorto; Necrotizing placentitis; Placentite necrotizante. |
Thesagro: |
Aborto; Cabra; Caprino; Neospora Caninum; Neosporose; Protozoário. |
Thesaurus Nal: |
Abortion (animals); Fetal death; Goats; Immunohistochemistry; Neosporosis; Protozoa; Transplacental transmission. |
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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Registros recuperados : 3 | |
1. | | PORSANI, M. Y. H.; PALUDETTI, M.; ORLANDO, D. R.; PECONICK, A. P.; COSTA, R. C.; OLIVEIRA, L. E. D.; ZANGERONIMO, M. G.; SOUSA, R. V. Protective effect of β-glucan and glutamine on intestinal and immunological damage in mice induced by cytarabine (Ara-C). Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 9, p. 977-983, setembro. 2017. Título em português: Efeito protetor do β-glucano e glutamina em lesões intestinais e imunológicas induzidas por ciratabina (Ara-C) em camundongos.Biblioteca(s): Embrapa Unidades Centrais. |
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2. | | MESQUITA, L. P.; COSTA, R. C.; NOGUEIRA, C. I.; ABREU, C. C.; ORLANDO, D. R.; ASCARI JUNIOR, I.; PECONICK, A. P.; VARASCHIN, M. S. Placental lesions associated with abortion and stillbirth in goats naturally infected by Neospora caninum. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 3, p. 444-449, março 2018 Título em português: Lesões placentárias associadas a abortos e natimortos em cabras naturalmente infectadas pelo Neospora caninum.Biblioteca(s): Embrapa Unidades Centrais. |
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3. | | MOURÃO, M. de M.; BITAR, M.; LOBO, F. P.; PECONICK, A. P.; GRYNBERG, P.; PROSDOCIMI, F.; WAISBERG, M.; CERQUEIRA, G. C.; MACEDO, A. M.; MACHADO, C. R.; YOSHINO, T.; FRANCO, G. R. A directed approach for the identification of transcripts harbouring the spliced leader sequence and the effect of trans-splicing knockdown in Schistosoma mansoni. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 108, n. 6, p. 707-717, Sept. 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Agricultura Digital. |
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Registros recuperados : 3 | |
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