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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
17/01/2013 |
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Data da última atualização: |
01/07/2016 |
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Autoria: |
CALDEIRA, F. H. B.; UBIALI, D. G.; GODOY, I. de; DUTRA, V.; AGUIAR, D. M. de; MELO, A. L. T.; RIET-CORREA, F.; COLODEL, E. M.; PESCADOR, C. A. |
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Título: |
Outbreak of caprine abortion by Toxoplasma gondii in Midwest Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 31, n. 11, p. 933-937, nov. 2011. |
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DOI: |
http://dx.doi.org/10.1590/S0100-736X2011001100001. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: An outbreak of abortion by Toxoplasma gondii in goats on a farm in the Brazilian Midwest is reported. Gross lesions were not observed in seven aborted fetuses submitted to the Veterinary Pathology Laboratory, Federal University of Mato Grosso, for necropsy investigation. The main histologic lesions were mononuclear cell pneumonia and necrotizing encephalitis in varying degrees of intensity. PCR for Brucella abortus and Neospora caninum and aerobic cultures were negative in all cases. Antibody titles against T. gondii varying from 1:1024 to 1:32.768 were detected in serum samples from four aborted goats. Nested-PCR assay for T. gondii were positive in brain samples of all cases submitted. These findings indicate that T. gondii infection should be considered in the diagnosis of abortion in goats in Midwest Brazil.
[Surto de aborto por Toxoplasma gondii em caprinos na região Centro-Oeste do Brasil].
Resumo: Descreve-se um surto de aborto em caprinos por T. gondii em uma propriedade situada na região Centro-Oeste do Brasil. Não foram observadas lesões macroscópicas em sete fetos abortados encaminhados ao Laboratório de Patologia Veterinária da Universidade Federal de Mato Grosso para necropsia. As principais lesões histopatológicas foram encefalite necrosante e pneumonia mononuclear em variados graus de intensidade. PCR para Brucella abortus e Neospora caninum e cultivos em aerobiose obtiveram resultado negativo em todos os casos. Anticorpos anti-T. gondii em titulações de 1:1024 a 1:32.768 foram detectados no soro de quatro cabras que abortaram. Amostras de todos os cérebros enviados foram positivos para T. gondii pela técnica de Nested-PCR. Estes achados indicam que a infecção por T. gondii deve ser considerada no diagnóstico de aborto em caprinos na região Centro-Oeste do Brasil. MenosAbstract: An outbreak of abortion by Toxoplasma gondii in goats on a farm in the Brazilian Midwest is reported. Gross lesions were not observed in seven aborted fetuses submitted to the Veterinary Pathology Laboratory, Federal University of Mato Grosso, for necropsy investigation. The main histologic lesions were mononuclear cell pneumonia and necrotizing encephalitis in varying degrees of intensity. PCR for Brucella abortus and Neospora caninum and aerobic cultures were negative in all cases. Antibody titles against T. gondii varying from 1:1024 to 1:32.768 were detected in serum samples from four aborted goats. Nested-PCR assay for T. gondii were positive in brain samples of all cases submitted. These findings indicate that T. gondii infection should be considered in the diagnosis of abortion in goats in Midwest Brazil.
[Surto de aborto por Toxoplasma gondii em caprinos na região Centro-Oeste do Brasil].
Resumo: Descreve-se um surto de aborto em caprinos por T. gondii em uma propriedade situada na região Centro-Oeste do Brasil. Não foram observadas lesões macroscópicas em sete fetos abortados encaminhados ao Laboratório de Patologia Veterinária da Universidade Federal de Mato Grosso para necropsia. As principais lesões histopatológicas foram encefalite necrosante e pneumonia mononuclear em variados graus de intensidade. PCR para Brucella abortus e Neospora caninum e cultivos em aerobiose obtiveram resultado negativo em todos os casos. Anticorpos anti-T. gondii em titulaçõ... Mostrar Tudo |
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Palavras-Chave: |
Brasil; PCR. |
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Thesagro: |
Aborto; Caprino; Encefalite; Protozoário; Toxoplasma gondii. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02716naa a2200313 a 4500
001 1945611
005 2016-07-01
008 2011 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S0100-736X2011001100001.$2DOI
100 1 $aCALDEIRA, F. H. B.
245 $aOutbreak of caprine abortion by Toxoplasma gondii in Midwest Brazil.
260 $c2011
520 $aAbstract: An outbreak of abortion by Toxoplasma gondii in goats on a farm in the Brazilian Midwest is reported. Gross lesions were not observed in seven aborted fetuses submitted to the Veterinary Pathology Laboratory, Federal University of Mato Grosso, for necropsy investigation. The main histologic lesions were mononuclear cell pneumonia and necrotizing encephalitis in varying degrees of intensity. PCR for Brucella abortus and Neospora caninum and aerobic cultures were negative in all cases. Antibody titles against T. gondii varying from 1:1024 to 1:32.768 were detected in serum samples from four aborted goats. Nested-PCR assay for T. gondii were positive in brain samples of all cases submitted. These findings indicate that T. gondii infection should be considered in the diagnosis of abortion in goats in Midwest Brazil. [Surto de aborto por Toxoplasma gondii em caprinos na região Centro-Oeste do Brasil]. Resumo: Descreve-se um surto de aborto em caprinos por T. gondii em uma propriedade situada na região Centro-Oeste do Brasil. Não foram observadas lesões macroscópicas em sete fetos abortados encaminhados ao Laboratório de Patologia Veterinária da Universidade Federal de Mato Grosso para necropsia. As principais lesões histopatológicas foram encefalite necrosante e pneumonia mononuclear em variados graus de intensidade. PCR para Brucella abortus e Neospora caninum e cultivos em aerobiose obtiveram resultado negativo em todos os casos. Anticorpos anti-T. gondii em titulações de 1:1024 a 1:32.768 foram detectados no soro de quatro cabras que abortaram. Amostras de todos os cérebros enviados foram positivos para T. gondii pela técnica de Nested-PCR. Estes achados indicam que a infecção por T. gondii deve ser considerada no diagnóstico de aborto em caprinos na região Centro-Oeste do Brasil.
650 $aAborto
650 $aCaprino
650 $aEncefalite
650 $aProtozoário
650 $aToxoplasma gondii
653 $aBrasil
653 $aPCR
700 1 $aUBIALI, D. G.
700 1 $aGODOY, I. de
700 1 $aDUTRA, V.
700 1 $aAGUIAR, D. M. de
700 1 $aMELO, A. L. T.
700 1 $aRIET-CORREA, F.
700 1 $aCOLODEL, E. M.
700 1 $aPESCADOR, C. A.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 31, n. 11, p. 933-937, nov. 2011.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
10/08/2021 |
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Data da última atualização: |
10/08/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MARCHESINI, P.; NOVATO, T. P.; CARDOSO, S. J.; PRATA, M. C. de A.; NASCIMENTO, R. M. do; KLAFKE, G.; COSTA-JÚNIOR, L. M.; MATURANO, R.; LOPES, W. D. Z.; BITTENCOURT, V. R. E. P.; MONTEIRO, C. |
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Afiliação: |
PAULA MARCHESINI, Universidade Federal Rural do Rio de Janeiro; TATIANE PINHEIRO NOVATO, Universidade Federal Rural do Rio de Janeiro; SIMONE JAQUELINE CARDOSO, Universidade Federal de Juiz de Fora; MARCIA CRISTINA DE AZEVEDO PRATA, CNPGL; RAFAEL MOREIRA DO NASCIMENTO, Universidade Federal de Juiz de Fora; GUILHERME KLAFKE, Centro de Pesquisa em Saúde Animal, Eldorado do Sul, RS; LÍVIO M. COSTA-JÚNIOR, Universidade Federal do Maranhão; RALPH MATURANO, Universidade Federal de Juiz de Fora; WELBER DANIEL ZANETI LOPES, Universidade Federal de Goiás; VÂNIA RITA ELIAS PINHEIRO BITTENCOURT, Universidade Federal Rural do Rio de Janeiro; CAIO MONTEIRO, Universidade Federal de Goiás. |
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Título: |
Acaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari: Ixodidae) with different resistance profiles. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 286, 109226, 2020. |
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DOI: |
https://doi.org/10.1016/j.vetpar.2020.109226 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations. MenosThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison bet... Mostrar Tudo |
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Palavras-Chave: |
Fenilpropanóide; Resistência cruzada; Sesquiterpeno. |
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Thesagro: |
Acaricida; Bovino; Carrapato. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02849naa a2200325 a 4500
001 2133390
005 2021-08-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.vetpar.2020.109226$2DOI
100 1 $aMARCHESINI, P.
245 $aAcaricidal activity of (E)-cinnamaldehyde and alpha-bisabolol on populations of Rhipicephalus microplus (Acari$bIxodidae) with different resistance profiles.$h[electronic resource]
260 $c2020
520 $aThis study aimed to investigate the acaricidal activity of (E)-cinnamaldehyde and α-bisabolol on populations of Rhipicephalus microplus with different resistance profiles. The adult immersion test (AIT) was used to characterize the susceptibility of tick populations (50 field populations) to synthetic acaricides: deltamethrin, amitraz, and chlorfenvinphos. The larval packet test (LPT) was used to determine the LC50 values for (E)-cinnamaldehyde (populations 1?25) and α-bisabolol (populations 26?50) at the concentrations of 0.31, 0.62, 1.25, 2.0, 2.5, 5.0 and 10.0 mg/mL. The susceptible strain Porto Alegre (POA) was used as a reference for calculating the resistance ratio (RR). In the AIT, deltamethrin did not show efficacy >95 % for any of the populations, whereas amitraz and chlorfenvinphos have presented efficacy >95 % for three (6 %) and 15 (30 %) populations, respectively. In the LPT, the LC50 values of (E)-cinnamaldehyde and α-bisabolol varied from 0.23 to 2.36 mg/mL and 1.57?3.01 mg/mL, respectively. The RR50 for (E)-cinnamaldehyde showed 20 (80 %) populations with values <1.0 and no population with values>1.5. As for α-bisabolol, only two (8%) populations have presented RR50 <1.0, whereas three (12 %) populations showed incipient resistance to this sesquiterpene (RR50 between 1.5 and 2.0). The results indicate that all studied tick populations showed low susceptibility to at least one of the commercial acaricides tested. In addition, comparison between the LC50 values of (E)-cinnamaldehyde and α-bisabolol for the field populations and the susceptible strain POA suggests that there is no cross-resistance of (E)-cinnamaldehyde and α-bisabolol for the tick populations evaluated, and that the differences in the LC50 values are due to population variations.
650 $aAcaricida
650 $aBovino
650 $aCarrapato
653 $aFenilpropanóide
653 $aResistência cruzada
653 $aSesquiterpeno
700 1 $aNOVATO, T. P.
700 1 $aCARDOSO, S. J.
700 1 $aPRATA, M. C. de A.
700 1 $aNASCIMENTO, R. M. do
700 1 $aKLAFKE, G.
700 1 $aCOSTA-JÚNIOR, L. M.
700 1 $aMATURANO, R.
700 1 $aLOPES, W. D. Z.
700 1 $aBITTENCOURT, V. R. E. P.
700 1 $aMONTEIRO, C.
773 $tVeterinary Parasitology$gv. 286, 109226, 2020.
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Embrapa Gado de Leite (CNPGL) |
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