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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Rondônia. |
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Data corrente: |
08/02/2017 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAMPOS, F. T. de; RINCON, J. A. A.; ACOSTA, D. A. V.; SILVEIRA, P. A. S.; PRADIEÉ, J.; CORRÊA, M. N.; GASPERIN, B. G.; PFEIFER, L. F. M.; BARROS, C. C.; PEGORARO, L. M. C.; SCHNEIDER, A. |
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Afiliação: |
Felipe Terres de Campos, UFPel; Joao Aveiro Alvarado Rincon, UFPel; Diego Andres Velasco Acosta, CORPOICA; Pedro Augusto Silva Silveira, UFPel; Jorgea Pradieé, Embrapa Clima Temperado; Marcio Nunes Corrêa, UFPel; Bernardo Garziera Gasperin, UFPel; LUIZ FRANCISCO MACHADO PFEIFER, CPAF-Rondonia; Carlos Castilho Barros, UFPel; LIGIA MARGARETH CANTARELLI PEGORARO, CPACT; Augusto Schneider, UFPel. |
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Título: |
The acute effect of intravenous lipopolysaccharide injection on serumand intrafollicular HDL components and gene expression in granulosacells of the bovine dominant follicle. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Theriogenology, v. 89, p. 244 - 249, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic and inflammatory genes had reduced expression in the granulosa cells. MenosThe aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic a... Mostrar Tudo |
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Palavras-Chave: |
Esteroidogênese; PON1. |
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Thesagro: |
Colesterol; Inflamação. |
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Thesaurus Nal: |
cholesterol; inflammation; steroidogenesis. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227597/1/cpafro-17770.pdf
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Marc: |
LEADER 02572naa a2200325 a 4500
001 2063230
005 2021-11-10
008 2017 bl uuuu u00u1 u #d
100 1 $aCAMPOS, F. T. de
245 $aThe acute effect of intravenous lipopolysaccharide injection on serumand intrafollicular HDL components and gene expression in granulosacells of the bovine dominant follicle.$h[electronic resource]
260 $c2017
520 $aThe aim of this study was to evaluate the effect of an acute systemic inflammatory response induced by lipopolysaccharide (LPS) in the serum and follicular fluid (FF) high-density lipoprotein (HDL) components, hormone concentrations and granulosa cell gene expression. For this purpose, twenty non-lactating Jersey dairy cows were submitted to a progesterone (P4) ? estradiol (E2) based synchronization protocol. Cows received a single i.v. dose of LPS (2.5 μg/kg of body weight) or saline solution (CTL Group) 2 h after P4 insert removal. Blood, granulosa cells and FF samples were collected six hours after LPS injection. Five hours after LPS injection rectal temperature was increased in LPS (P < 0.0001, 40.4 ± 0.1 °C) compared to the CTL cows (38.8 ± 0.1 °C). Serum PON1 activity was reduced by LPS injection (130.2 ± 5.1 vs. 99.6 ± 3.3 U/mL; P < 0.001), as well as HDL-cholesterol concentrations (70.3 ± 5.3 vs. 50.1 ± 6.2 mg/dL; P < 0.05). The FF E2 and P4 concentrations were not different between groups (P > 0.05). The PON1 activity in the FF was also decreased by LPS injection (P = 0.01). In comparison to CTL group, cows injected with LPS had a ten fold reduction in STAR, TLR4 and TNF mRNA expression (P < 0.05). In conclusion, an intravenous LPS challenge in cows induced an acute systemic inflammatory response reducing HDL and its components in serum but not in the FF. Only PON1 activity serum reduction was reflected in the FF in the short term. Additionally, steroidogenic and inflammatory genes had reduced expression in the granulosa cells.
650 $acholesterol
650 $ainflammation
650 $asteroidogenesis
650 $aColesterol
650 $aInflamação
653 $aEsteroidogênese
653 $aPON1
700 1 $aRINCON, J. A. A.
700 1 $aACOSTA, D. A. V.
700 1 $aSILVEIRA, P. A. S.
700 1 $aPRADIEÉ, J.
700 1 $aCORRÊA, M. N.
700 1 $aGASPERIN, B. G.
700 1 $aPFEIFER, L. F. M.
700 1 $aBARROS, C. C.
700 1 $aPEGORARO, L. M. C.
700 1 $aSCHNEIDER, A.
773 $tTheriogenology$gv. 89, p. 244 - 249, 2017.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
24/05/2012 |
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Data da última atualização: |
03/10/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VASCONCELOS, H. E. M.; ARAUJO, M. R. A. de. |
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Afiliação: |
HELENIRA ELLERY MARINHO VASCONCELOS, CNPAT; MARCELO RENATO ALVES DE ARAUJO, CNPC. |
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Título: |
O uso de inovações na transição de sistemas tradicionais de produção do semi-árido do Nordeste: alguns dilemas. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Revista Brasileira de Agroecologia, v. 2, n. 1, p. 58-61, fev. 2007. |
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Idioma: |
Português |
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Notas: |
Edição dos Resumos do Congresso Brasileiro de Agroecologia, 5., Guarapari, ES de 01 a 04 de outubro de 2007. |
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Conteúdo: |
Resumo: No Nordeste brasileiro, proliferam propostas de transferência de tecnologias pautadas no desenvolvimento rural sustentável, justificadas no agravamento da questão ambiental e nas ameaças de desertificação de espaços rurais, associando tais fenômenos às práticas adotadas pelos sistemas tradicionais da agricultura familiar, a chamada agricultura itinerante, caracterizada pelo cultivo de uma área por um ou dois anos, seguido por vários anos de pousio. A reconversão de sistemas tradicionais da caatinga por meio da implantação de sistemas agrossilvipastoris, referenciados na agroecologia, tem sido uma opção apregoada por organismos de fomento ao desenvolvimento rural. Inserido nesta temática, o presente estudo narra algumas dificuldades de implantação de um projeto de validação de sistemas agrossilvipastoris em assentamentos do Ceará. The use of innovations in the transition of traditional productions systems in the Brazillian Northeast 'semi-arido': some dilemmas. Abstract: In the Brazillian Northeast, proposals for technological transfers guided by the principles of sustainable rural development abound. The justification offered for such proposals is the aggravation of environmental problems, and the threat of increased desertification in rural spaces, associated with the practices adopted by traditional systems of family agriculture, the so called itinerant agriculture, characterized by the growth of a crop in one area for two years followed by several years of rest. The return to tradicional systems of the 'caatinga' through the introduction of agroforestry systems, having as reference the agroecology, has been pointed out as an option by rural development foment organizations. Along these lines, the current work describes some of the difficulties faced when implementing a validation project for agroforestry systems in settlements in Ceará MenosResumo: No Nordeste brasileiro, proliferam propostas de transferência de tecnologias pautadas no desenvolvimento rural sustentável, justificadas no agravamento da questão ambiental e nas ameaças de desertificação de espaços rurais, associando tais fenômenos às práticas adotadas pelos sistemas tradicionais da agricultura familiar, a chamada agricultura itinerante, caracterizada pelo cultivo de uma área por um ou dois anos, seguido por vários anos de pousio. A reconversão de sistemas tradicionais da caatinga por meio da implantação de sistemas agrossilvipastoris, referenciados na agroecologia, tem sido uma opção apregoada por organismos de fomento ao desenvolvimento rural. Inserido nesta temática, o presente estudo narra algumas dificuldades de implantação de um projeto de validação de sistemas agrossilvipastoris em assentamentos do Ceará. The use of innovations in the transition of traditional productions systems in the Brazillian Northeast 'semi-arido': some dilemmas. Abstract: In the Brazillian Northeast, proposals for technological transfers guided by the principles of sustainable rural development abound. The justification offered for such proposals is the aggravation of environmental problems, and the threat of increased desertification in rural spaces, associated with the practices adopted by traditional systems of family agriculture, the so called itinerant agriculture, characterized by the growth of a crop in one area for two years followed by several years of rest. T... Mostrar Tudo |
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Palavras-Chave: |
Family farmer; Sustainable developmen; Tecnology transfer. |
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Thesagro: |
Agricultura familiar; Desenvolvimento sustentável; Transferência de tecnologia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/60000/1/AAC-O-uso-de-inovacoes.pdf
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Marc: |
LEADER 02722nam a2200205 a 4500
001 1925345
005 2019-10-03
008 2007 bl uuuu u00u1 u #d
100 1 $aVASCONCELOS, H. E. M.
245 $aO uso de inovações na transição de sistemas tradicionais de produção do semi-árido do Nordeste$balguns dilemas.$h[electronic resource]
260 $aRevista Brasileira de Agroecologia, v. 2, n. 1, p. 58-61, fev. 2007.$c2007
500 $aEdição dos Resumos do Congresso Brasileiro de Agroecologia, 5., Guarapari, ES de 01 a 04 de outubro de 2007.
520 $aResumo: No Nordeste brasileiro, proliferam propostas de transferência de tecnologias pautadas no desenvolvimento rural sustentável, justificadas no agravamento da questão ambiental e nas ameaças de desertificação de espaços rurais, associando tais fenômenos às práticas adotadas pelos sistemas tradicionais da agricultura familiar, a chamada agricultura itinerante, caracterizada pelo cultivo de uma área por um ou dois anos, seguido por vários anos de pousio. A reconversão de sistemas tradicionais da caatinga por meio da implantação de sistemas agrossilvipastoris, referenciados na agroecologia, tem sido uma opção apregoada por organismos de fomento ao desenvolvimento rural. Inserido nesta temática, o presente estudo narra algumas dificuldades de implantação de um projeto de validação de sistemas agrossilvipastoris em assentamentos do Ceará. The use of innovations in the transition of traditional productions systems in the Brazillian Northeast 'semi-arido': some dilemmas. Abstract: In the Brazillian Northeast, proposals for technological transfers guided by the principles of sustainable rural development abound. The justification offered for such proposals is the aggravation of environmental problems, and the threat of increased desertification in rural spaces, associated with the practices adopted by traditional systems of family agriculture, the so called itinerant agriculture, characterized by the growth of a crop in one area for two years followed by several years of rest. The return to tradicional systems of the 'caatinga' through the introduction of agroforestry systems, having as reference the agroecology, has been pointed out as an option by rural development foment organizations. Along these lines, the current work describes some of the difficulties faced when implementing a validation project for agroforestry systems in settlements in Ceará
650 $aAgricultura familiar
650 $aDesenvolvimento sustentável
650 $aTransferência de tecnologia
653 $aFamily farmer
653 $aSustainable developmen
653 $aTecnology transfer
700 1 $aARAUJO, M. R. A. de
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Embrapa Caprinos e Ovinos (CNPC) |
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