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| Registros recuperados : 4 | |
| 1. |  | JAMAS, L. T.; SALINA, A.; ROSSI, R.; MENOZZI, B. D.; LANGONI, H. Parâmetros de qualidade do leite bovino em propriedades de agricultura familiar. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 4, p. 573-578, abril 2018 Título em inglês: Quality parameters of bovine milk from family farms.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 2. | | LANGONI, H.; SALINA, A.; OLIVEIRA, G. C.; JUNQUEIRA, N. B.; MENOZZI, B. D.; JOAQUIM, S. F. Considerações sobre o tratamento das mastites. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 11, p. 1261-1269, novembro 2017. Título em inglês: Considerations on the treatment of mastitis.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | MACHADO, G. P.; SILVA, R. C.; GUIMARÃES, F. F.; SALINA, A.; LANGONI, H. Detection of Staphylococcus aureus, Streptococcus agalactiae and Escherichia coli in Brazilian mastitic milk goats by multiplex-PCR. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 7, p. 1358-1364, julho 2018 Título em português: Detecção de Staphylococcus aureus, Streptococcus agalactiae e Escherichia coli em leite caprino mastítico no Brasil, por multiplex-PCR.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | LANGONI, H.; GUIDUCE, M. V. S.; NÓBREGA, D. B.; SILVA, R. C. da; RICHINI-PEREIRA, V. B.; SALINA, A.; GUIMARÃES, F. de F. Research o klebsiella pneumoniae in dairy herds. Pesquisa Veterinária Brasileira, Rio de Janeiro, n. 35, n.1, p.9-12, jan. 2015.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 4 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
23/08/2012 |
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Data da última atualização: |
22/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
SARAIVA, N. Z.; OLIVEIRA, C. S.; TETZNER, T. A. D.; LIMA, M. R. de; MELO, D. S. de; NICIURA, S. C. M.; GARCIA, J. M. |
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Afiliação: |
NAIARA ZOCCAL SARAIVA, Universidade Estadual Paulista; CLARA SLADE OLIVEIRA, UNESP; TATIANE ALMEIDA DRUMMOND TETZNER, UNESP; MARINA RAGAGNIN DE LIMA, UNESP/JABOTICABAL; DANILAS SALINET DE MELO, UNESP/JABOTICABAL; SIMONE CRISTINA MEO NICIURA, CPPSE; JOAQUIM MANSANO GARCIA, UNESP/JABOTICABAL. |
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Título: |
Chemically assisted enucleation results in higher G6PD expression in early bovine female embryos obtained by somatic cell nuclear transfer. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Cellular Reprogramming, v. 14, n. 5, p. 1-11, 2012. |
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DOI: |
10.1089/cell.2011.0077 |
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Idioma: |
Inglês |
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Conteúdo: |
Despite extensive efforts, low efficiency is still an issue in bovine somatic cell nuclear transfer (SCNT). The hypothesis of our study was that the use of cytoplasts produced by chemically assisted enucleation (EN) would improve nuclear reprogramming in nuclear transfer (NT)?derived embryos because it results in lower damage and higher cytoplasm content than conventional EN. For that purpose, we investigated the expression of two X-linked genes: X inactive-specific transcript (XIST) and glucose 6-phosphate dehydrogenase (G6PD). In the first experiment, gene expression was assessed in day-7 female blastocysts from embryonic cell NT (ECNT) groups [conventional, ECNT conv; chemically assisted, ECNT deme (demecolcine)]. Where as in the ECNT conv group, only one embryo (25%; n = 4) expressed XIST transcripts, most embryos showed XIST expression (75%; n = 4) in the ECNT deme group. However, no significant differences in transcript abundance of XIST and G6PD were found when comparing the embryos from all groups. In a second experiment using somatic cells as nuclear donors, we evaluated gene expression profiles in female SCNT-derived embryos. No significant differences in relative abundance (RA) of XIST transcripts were observed among the groups. Nonetheless, higher ( p < 0.05) levels of G6PD were observed in SCNT deme and in vitro?derived groups in comparison to SCNT conv. To know whether higher G6PD expression in embryos derived from SCNT chemically assisted EN indicates higher metabolism in embryos considered of superior quality or if the presence of higher reactive oxygen species (ROS) levels generated by the increased oxygen consumption triggers G6PD activation, the expression of genes related to stress response should be investigated in embryos produced by that technique. MenosDespite extensive efforts, low efficiency is still an issue in bovine somatic cell nuclear transfer (SCNT). The hypothesis of our study was that the use of cytoplasts produced by chemically assisted enucleation (EN) would improve nuclear reprogramming in nuclear transfer (NT)?derived embryos because it results in lower damage and higher cytoplasm content than conventional EN. For that purpose, we investigated the expression of two X-linked genes: X inactive-specific transcript (XIST) and glucose 6-phosphate dehydrogenase (G6PD). In the first experiment, gene expression was assessed in day-7 female blastocysts from embryonic cell NT (ECNT) groups [conventional, ECNT conv; chemically assisted, ECNT deme (demecolcine)]. Where as in the ECNT conv group, only one embryo (25%; n = 4) expressed XIST transcripts, most embryos showed XIST expression (75%; n = 4) in the ECNT deme group. However, no significant differences in transcript abundance of XIST and G6PD were found when comparing the embryos from all groups. In a second experiment using somatic cells as nuclear donors, we evaluated gene expression profiles in female SCNT-derived embryos. No significant differences in relative abundance (RA) of XIST transcripts were observed among the groups. Nonetheless, higher ( p < 0.05) levels of G6PD were observed in SCNT deme and in vitro?derived groups in comparison to SCNT conv. To know whether higher G6PD expression in embryos derived from SCNT chemically assisted EN indicates higher m... Mostrar Tudo |
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Palavras-Chave: |
Higher G6PD; Nuclear transfer; Somatic cell. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02567naa a2200241 a 4500
001 1932049
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008 2012 bl uuuu u00u1 u #d
024 7 $a10.1089/cell.2011.0077$2DOI
100 1 $aSARAIVA, N. Z.
245 $aChemically assisted enucleation results in higher G6PD expression in early bovine female embryos obtained by somatic cell nuclear transfer.$h[electronic resource]
260 $c2012
520 $aDespite extensive efforts, low efficiency is still an issue in bovine somatic cell nuclear transfer (SCNT). The hypothesis of our study was that the use of cytoplasts produced by chemically assisted enucleation (EN) would improve nuclear reprogramming in nuclear transfer (NT)?derived embryos because it results in lower damage and higher cytoplasm content than conventional EN. For that purpose, we investigated the expression of two X-linked genes: X inactive-specific transcript (XIST) and glucose 6-phosphate dehydrogenase (G6PD). In the first experiment, gene expression was assessed in day-7 female blastocysts from embryonic cell NT (ECNT) groups [conventional, ECNT conv; chemically assisted, ECNT deme (demecolcine)]. Where as in the ECNT conv group, only one embryo (25%; n = 4) expressed XIST transcripts, most embryos showed XIST expression (75%; n = 4) in the ECNT deme group. However, no significant differences in transcript abundance of XIST and G6PD were found when comparing the embryos from all groups. In a second experiment using somatic cells as nuclear donors, we evaluated gene expression profiles in female SCNT-derived embryos. No significant differences in relative abundance (RA) of XIST transcripts were observed among the groups. Nonetheless, higher ( p < 0.05) levels of G6PD were observed in SCNT deme and in vitro?derived groups in comparison to SCNT conv. To know whether higher G6PD expression in embryos derived from SCNT chemically assisted EN indicates higher metabolism in embryos considered of superior quality or if the presence of higher reactive oxygen species (ROS) levels generated by the increased oxygen consumption triggers G6PD activation, the expression of genes related to stress response should be investigated in embryos produced by that technique.
653 $aHigher G6PD
653 $aNuclear transfer
653 $aSomatic cell
700 1 $aOLIVEIRA, C. S.
700 1 $aTETZNER, T. A. D.
700 1 $aLIMA, M. R. de
700 1 $aMELO, D. S. de
700 1 $aNICIURA, S. C. M.
700 1 $aGARCIA, J. M.
773 $tCellular Reprogramming$gv. 14, n. 5, p. 1-11, 2012.
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