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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
10/07/2017 |
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Data da última atualização: |
10/07/2017 |
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Autoria: |
JONES, C. T. |
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Título: |
The development of some metabolic responses to hypoxia in the foetal sheep. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
The Journal of Physiology, v. 265, n. 3, p. 743-762, Mar. 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: 1. Foetal and maternal plasma metabolite and catecholamine concentrations have been measured in chronically catheterized sheep, 95-145 days pregnant. 2. With increasing gestational age there was rise in foetal plasma lactate, free fatty acid and ketone body concentration and in maternal plasma in free fatty acid and ketone body concentration. With the exception of alpha-amino nitrogen none of the plasma metabolites showed any correlation with foetal blood gas or pH values; alpha-amino N was inversely related to foetal blood pH. 3. Hypoxia in the foetuses was induced by causing the ewe to breathe 9% O2 with 3% CO2 in N2. This had a small effect on plasma metabolites in the ewe, mainly producing an increase in free fatty acid and ketone body concentration. 4. In the foetus hypoxia was associated with a large rise in plasma lactate and a small rise in alpha-amino N, the magnitudes of which did not change over the gestational range studied. Consistent and large increases in foetal plasma glucose, free fatty acid and ketone body concentration in response to hypoxia were seen only between 130 and 145 days. 5. In foetuses of 130-145 days the magnitude of the hypoxia-induced rise in plasma glucose and free fatty acid concentration was proportional to the plasma catecholamine concentration. 6. The concentration of acetate in foetal plasma was lower than and proportional to that in the maternal plasma. Neither concentration changed significantly during hypoxia. 7. The results are discussed in relation to the ability of the foetal sheep independently to control the concentration of its plasma metabolites and to mobilize its carbon stores at times of need. They indicate that in the sheep plasma catecholamines are important regulators of plasma glucose and free fatty acid concentrations late in foetal life. MenosAbstract: 1. Foetal and maternal plasma metabolite and catecholamine concentrations have been measured in chronically catheterized sheep, 95-145 days pregnant. 2. With increasing gestational age there was rise in foetal plasma lactate, free fatty acid and ketone body concentration and in maternal plasma in free fatty acid and ketone body concentration. With the exception of alpha-amino nitrogen none of the plasma metabolites showed any correlation with foetal blood gas or pH values; alpha-amino N was inversely related to foetal blood pH. 3. Hypoxia in the foetuses was induced by causing the ewe to breathe 9% O2 with 3% CO2 in N2. This had a small effect on plasma metabolites in the ewe, mainly producing an increase in free fatty acid and ketone body concentration. 4. In the foetus hypoxia was associated with a large rise in plasma lactate and a small rise in alpha-amino N, the magnitudes of which did not change over the gestational range studied. Consistent and large increases in foetal plasma glucose, free fatty acid and ketone body concentration in response to hypoxia were seen only between 130 and 145 days. 5. In foetuses of 130-145 days the magnitude of the hypoxia-induced rise in plasma glucose and free fatty acid concentration was proportional to the plasma catecholamine concentration. 6. The concentration of acetate in foetal plasma was lower than and proportional to that in the maternal plasma. Neither concentration changed significantly during hypoxia. 7. The result... Mostrar Tudo |
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Palavras-Chave: |
Blood sugar; Foetus. |
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Thesagro: |
Anóxia; Ph. |
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Thesaurus Nal: |
Acetates; Catecholamines; Fatty Acids; Gestation period; ketone bodies; Lactates; Nitrogen; Pregnancy; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02535naa a2200277 a 4500
001 2072354
005 2017-07-10
008 1977 bl uuuu u00u1 u #d
100 1 $aJONES, C. T.
245 $aThe development of some metabolic responses to hypoxia in the foetal sheep.
260 $c1977
520 $aAbstract: 1. Foetal and maternal plasma metabolite and catecholamine concentrations have been measured in chronically catheterized sheep, 95-145 days pregnant. 2. With increasing gestational age there was rise in foetal plasma lactate, free fatty acid and ketone body concentration and in maternal plasma in free fatty acid and ketone body concentration. With the exception of alpha-amino nitrogen none of the plasma metabolites showed any correlation with foetal blood gas or pH values; alpha-amino N was inversely related to foetal blood pH. 3. Hypoxia in the foetuses was induced by causing the ewe to breathe 9% O2 with 3% CO2 in N2. This had a small effect on plasma metabolites in the ewe, mainly producing an increase in free fatty acid and ketone body concentration. 4. In the foetus hypoxia was associated with a large rise in plasma lactate and a small rise in alpha-amino N, the magnitudes of which did not change over the gestational range studied. Consistent and large increases in foetal plasma glucose, free fatty acid and ketone body concentration in response to hypoxia were seen only between 130 and 145 days. 5. In foetuses of 130-145 days the magnitude of the hypoxia-induced rise in plasma glucose and free fatty acid concentration was proportional to the plasma catecholamine concentration. 6. The concentration of acetate in foetal plasma was lower than and proportional to that in the maternal plasma. Neither concentration changed significantly during hypoxia. 7. The results are discussed in relation to the ability of the foetal sheep independently to control the concentration of its plasma metabolites and to mobilize its carbon stores at times of need. They indicate that in the sheep plasma catecholamines are important regulators of plasma glucose and free fatty acid concentrations late in foetal life.
650 $aAcetates
650 $aCatecholamines
650 $aFatty Acids
650 $aGestation period
650 $aketone bodies
650 $aLactates
650 $aNitrogen
650 $aPregnancy
650 $aSheep
650 $aAnóxia
650 $aPh
653 $aBlood sugar
653 $aFoetus
773 $tThe Journal of Physiology$gv. 265, n. 3, p. 743-762, Mar. 1977.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 16 | |
| 6. |  | MIRANDA, R. de Q.; GALVÍNCIO, J. D.; MOURA, M. S. B. de; JONES, C. A.; SRINIVASAN, R. Análise espacial do balanço hídrico na Caatinga da Bacia do Rio Pontal. In: CONGRESSO BRASILEIRO DE AGROMETEOROLOGIA, 20; SIMPÓSIO DE MUDANÇAS CLIMÁTICAS E DESERTIFICAÇÃO NO SEMIÁRIDO BRASILEIRO, 5., 2017, Juazeiro, BA. A agrometeorologia na solução de problemas multiescala: anais. Petrolina: Embrapa Semiárido; Juazeiro: UNIVASF; Campinas: Sociedade Brasileira de Agrometeorologia, 2017. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 8. | | NEGAWO, A. T.; JORGE, A.; HANSON, J.; TESHOME, A.; MUKTAR, M. S.; AZEVEDO, A. L. S.; LEDO, F. J. da S.; MACHADO, J. C.; JONES, C. S. Molecular markers as a tool for germplasm acquisition to enhance the genetic diversity of a Napier grass (Cenchrus purpureus syn. Pennisetum purpureum) collection. Tropical Grasslands - Forrajes Tropicales, v. 6, n. 2, p. 58-69, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | MIRANAD, R. de Q.; GALVÍNCIO, J. D.; MORAIS, Y. C. B.; MOURA, M. S. B. de; JONES, C. A.; SRINIVASAN, R. Dry forest deforestation dynamics in Brazil's Pontal basin. Revista Caatinga, v. 31, n. 2, p. 385-395, abr./jun. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Semiárido. |
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| 10. | | HABTE, E.; TESHOME, A.; MUKTAR, M. S.; ASSEFA, Y.; NEGAWO, A. T.; MACHADO, J. C.; LEDO, F. J. da S.; JONES, C. S. Productivity and feed quality performance of napier grass (Cenchrus purpureus) genotypes growing under different soil moisture levels. Plants, v. 11, 2549, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | ANDERSON, L. O.; BURTON, C.; REIS, J. B. C. dos; PESSÔA, A. C. M.; BETT, P.; CARVALHO, N. S.; SILVA JUNIOR, C. H. L.; WILLIAMS, K.; SELAYA, G.; ARMENTERAS, D.; BILBAO, B. A.; XAUD, H. A. M.; RIVERA-LOMBARDI, R.; FERREIRA, J. N.; ARAGÃO, L. E. O. C.; JONES, C. D.; WILTSHIRE, A. J. An alert systemfor Seasonal Fire probability forecast for South American Protected Areas. Climate Resilience and Sustainability, p. 1-19, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Roraima. |
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| 13. | | ANDERSON, L. O.; BURTON, C.; REIS, J. B. C. dos; PESSÔA, A. C. M.; BETT, P.; CARVALHO, N. S.; SILVA JUNIOR, C. H. L.; WILLIAMS, K.; SELAYA, G.; ARMENTERAS, D.; BILBAO, B. A.; XAUD, H. A. M.; RIVERA-LOMBARDI, R.; FERREIRA, J. N.; ARAGÃO, L. E. O. C.; JONES, C. D.; WILTSHIRE, A. J. An alert systemfor Seasonal Fire probability forecast for South American Protected Areas. Climate Resilience and Sustainability, v. 1, n. 1, p. 1-19, Feb. 2022.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 14. | | HICKEY, J. M.; CHIURUGWI, T.; MACKAY, I.; POWELL, W.; EGGEN, A.; KILIAN, A.; JONES, C.; CANALES, C.; GRATTAPAGLIA, D.; BASSI, F.; ATLIN, G.; GORJANC, G.; DAWSON, I.; RABBI, I.; RIBAUT, J.-M.; RUTKOSKI, J.; BENZIE, J.; LIGHTNER, J.; MWACHARO, J.; PARMENTIER, J.; ROBBINS, K.; SKOT, L.; WOLFE, M.; ROUARD, M.; CLARK, M.; AMER, P.; GARDINER, P.; HENDRE, P.; MRODE, R.; SIVASANKAR, S.; RASMUSSEN, S.; GROH, S.; JACKSON, V.; THOMAS, W.; BEYENE, Y. Genomic prediction unifies animal and plant breeding programs to form platforms for biological discovery. Nature Genetics, v. 49, p. 1297-1303, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 15. | | AMARAL, M. E. J.; GRANT, J. R.; RIGGS, P. K.; STAFUZZA, N. B.; RODRIGUES FILHO, E. A.; GOLDAMMER, T.; WEIKARD, R.; BRUNNER, R. M.; KOCHAN, K. J.; GRECO, A. J.; JEONG, J.; CAI, Z.; LIN, G.; PRASAD, A.; KUMAR, S.; SARADHI, G. P.; MATHEW, B.; KUMAR, M. A.; MIZIARA, M. N.; MARIANI, P.; CAETANO, A. R.; GALVAO, S. R.; TANTIA, M. S.; VIJH, R. K.; MISHRA, B.; KUMAR, S. B.; PELAI, V. A.; SANTANA, A. M.; FORNITANO, L. C.; JONES, C. B.; TONHATI, H.; MOORE, S.; STOTHARD, P.; WOMACK, J. E. A first generation whole genome RH map of the river buffalo with comparison to domestic cattle. BMC Genomics, v. 9, n. 631.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 16. | | GALVÍNCIO, J. D.; ARAÚJO, M. do S. B. de; SOUZA, W. M. de; COSTA, V. S. de O.; MONTENEGRO, S. M. G. L.; BRESSIANI, D. de A.; SRINIVASAN, t.; JONES, C. A.; FREIRE, M. B. G. dos S.; FERNANDES, J. G.; MOURA, M. S. B. de; MIRANDA, R. de Q.; PAZ, Y. M.; FERREIRA, P. dos S.; FRANÇA, L. M. de A.; CAVALCANTI, E. R. A.; LIMA, C. E. S. de; SILVA, E. L. R. da; SANTOS, T. O. dos; ALBUQUERQUE, V. B. S. de; SILVA, R. H. de O. da; GOMES, V. P.; LOPES, Z. F.; SILVA JÚNIOR, A. P. da; SENA, A. G. de; MORAIS, Y. C. B.; SILVA, J. N. B. da; SILVA, J. F. da; LIMA, M. C. G. de; BRITO, P. V. da S.; SILVA, P. P. L.; LACERDA, A. C. Desenvolvimento de parâmetros de vegetação para as grandes e pequenas culturas usando os modelos SWAT e APEX em estudos nos Biomas brasileiros (CAPES PVE A103/2013). In: WORKSHOP DE MUDANÇAS CLIMÁTICAS E RECURSOS HÍDRICOS DO ESTADO DE PERNAMBUCO, 8.; WORKSHOP INTERNACIONAL SOBRE MUDANÇAS CLIMÁTICAS E BIODIVERSIDADE, 5., 2017, Recife. Governança, desenvolvimento e tecnologias ambientais. Recife: ITEP, 2017. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 16 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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