| |
|
|
 | 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 |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
14/01/2020 |
|
Data da última atualização: |
06/02/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
OLIVEIRA, C. S.; BARROS, B. A. F. de; MONTEIRO, C. A. S.; ROSA, P. M. S.; LEAL, G. R.; SERAPIÃO, R. V.; CAMARGO, L. S. de A. |
|
Afiliação: |
CLARA SLADE OLIVEIRA, CNPGL; B. A. F. de Barros; C. A. S. Monteiro; P. M. S. Rosa; G. R. Leal; Raquel Varela Serapião; LUIZ SERGIO DE ALMEIDA CAMARGO, CNPGL. |
|
Título: |
Individual assessment of bovine embryo development using a homemade chamber reveals kinetic patterns of success and failure to reach blastocyst stage. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Systems Biology in Reproductive Medicine, v. 65, n. 4, p. 301-311, 2019. |
|
DOI: |
https://doi.org/10.1080/19396368.2019.1589601 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Most early developmental data are lost in bovine embryo culture systems. We developed and validated a method for culture of bovine embryos in groups that allow individual assessment. An autoclavable low-cost multiembryo chamber (MEC) was prepared using a polyester mesh fixed to a glass coverslip. Embryonic development was not affected by MEC. Compared to conventional bovine culture system (oil-covered drops, control), cleavage (C, 71.2 ± 7.8%; MEC, 74.3 ± 6.0%), blastocyst rate (C, 29.9 ± 4.4%; MEC, 28.3 ± 5.0%) and blastocyst cell number (C, 94.1 ± 9.7; MEC, 92.9 ± 5.3) were similar. Caspase 3 positive cell index in blastocysts was increased in MEC group, but apoptosis rate was below 5% (C, 2.9 ± 0.5; MEC, 4.6 ± 0.6). Using MEC, we performed a retrospective analysis for 'failure' and 'success' embryos, based on their ability to reach the blastocyst stage. We detected the majority of 'success' embryos displayed 8 cells at 48 h post-insemination (hpi) (48.7%), but blastocysts derived from this pattern presented lower cell numbers (91.3 ± 4.2 vs. 107.9 ± 4.9) and higher apoptosis index (6.2 ± 0.6 vs. 4.4 ± 0.5) than blastocysts from 4-cell embryos at 48 hpi. Most (72.0%) embryos that were at morula stage 120 hpi reached blastocyst stage at 168 hpi. Those blastocysts presented more number of cells than blastocysts derived from embryos exhibiting 16 cells at 120 hpi (108.6 ± 4.1 vs. 83.9 ± 4.8). Combination of embryo kinetics data at 48 and 120 hpi revealed high chances of blastocyst formation for patterns: 8 cells/morula, 4 cells/morula, 8 cells/16 cells and 4 cells/16 cells. Blastocysts formed from 4-cell/morula and 8-cell/morula patterns represented 69% of all 168 hpi blastocysts. Blastocysts derived from 4 cells/16 cells displayed decreased apoptosis (3.1 ± 0.6). Our results suggest that MEC can be used for bovine embryo culture without detrimental effects on development and can help to predict blastocyst formation and quality of in vitro fertilization (IVF) embryos. Abbreviations: BSA: bovine serum albumine; COC: cumulus-oocyte complex; FERT-TALP: Tyrode's albumin lactate pyruvate fertilization; FBS: fetal bovine serum; IVF: in vitro fertilization; MEC: multiembryo chamber; PBS: phosphate buffered saline; SOF-AA: synthetic oviductal fluid with amino acids medium; TCM: Tissue Culture Medium. MenosMost early developmental data are lost in bovine embryo culture systems. We developed and validated a method for culture of bovine embryos in groups that allow individual assessment. An autoclavable low-cost multiembryo chamber (MEC) was prepared using a polyester mesh fixed to a glass coverslip. Embryonic development was not affected by MEC. Compared to conventional bovine culture system (oil-covered drops, control), cleavage (C, 71.2 ± 7.8%; MEC, 74.3 ± 6.0%), blastocyst rate (C, 29.9 ± 4.4%; MEC, 28.3 ± 5.0%) and blastocyst cell number (C, 94.1 ± 9.7; MEC, 92.9 ± 5.3) were similar. Caspase 3 positive cell index in blastocysts was increased in MEC group, but apoptosis rate was below 5% (C, 2.9 ± 0.5; MEC, 4.6 ± 0.6). Using MEC, we performed a retrospective analysis for 'failure' and 'success' embryos, based on their ability to reach the blastocyst stage. We detected the majority of 'success' embryos displayed 8 cells at 48 h post-insemination (hpi) (48.7%), but blastocysts derived from this pattern presented lower cell numbers (91.3 ± 4.2 vs. 107.9 ± 4.9) and higher apoptosis index (6.2 ± 0.6 vs. 4.4 ± 0.5) than blastocysts from 4-cell embryos at 48 hpi. Most (72.0%) embryos that were at morula stage 120 hpi reached blastocyst stage at 168 hpi. Those blastocysts presented more number of cells than blastocysts derived from embryos exhibiting 16 cells at 120 hpi (108.6 ± 4.1 vs. 83.9 ± 4.8). Combination of embryo kinetics data at 48 and 120 hpi revealed high chances of blast... Mostrar Tudo |
|
Palavras-Chave: |
Culture system; Embryo kinetics; Embryonic quality; Single embryo culture. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 03220naa a2200253 a 4500
001 2118728
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/19396368.2019.1589601$2DOI
100 1 $aOLIVEIRA, C. S.
245 $aIndividual assessment of bovine embryo development using a homemade chamber reveals kinetic patterns of success and failure to reach blastocyst stage.$h[electronic resource]
260 $c2019
520 $aMost early developmental data are lost in bovine embryo culture systems. We developed and validated a method for culture of bovine embryos in groups that allow individual assessment. An autoclavable low-cost multiembryo chamber (MEC) was prepared using a polyester mesh fixed to a glass coverslip. Embryonic development was not affected by MEC. Compared to conventional bovine culture system (oil-covered drops, control), cleavage (C, 71.2 ± 7.8%; MEC, 74.3 ± 6.0%), blastocyst rate (C, 29.9 ± 4.4%; MEC, 28.3 ± 5.0%) and blastocyst cell number (C, 94.1 ± 9.7; MEC, 92.9 ± 5.3) were similar. Caspase 3 positive cell index in blastocysts was increased in MEC group, but apoptosis rate was below 5% (C, 2.9 ± 0.5; MEC, 4.6 ± 0.6). Using MEC, we performed a retrospective analysis for 'failure' and 'success' embryos, based on their ability to reach the blastocyst stage. We detected the majority of 'success' embryos displayed 8 cells at 48 h post-insemination (hpi) (48.7%), but blastocysts derived from this pattern presented lower cell numbers (91.3 ± 4.2 vs. 107.9 ± 4.9) and higher apoptosis index (6.2 ± 0.6 vs. 4.4 ± 0.5) than blastocysts from 4-cell embryos at 48 hpi. Most (72.0%) embryos that were at morula stage 120 hpi reached blastocyst stage at 168 hpi. Those blastocysts presented more number of cells than blastocysts derived from embryos exhibiting 16 cells at 120 hpi (108.6 ± 4.1 vs. 83.9 ± 4.8). Combination of embryo kinetics data at 48 and 120 hpi revealed high chances of blastocyst formation for patterns: 8 cells/morula, 4 cells/morula, 8 cells/16 cells and 4 cells/16 cells. Blastocysts formed from 4-cell/morula and 8-cell/morula patterns represented 69% of all 168 hpi blastocysts. Blastocysts derived from 4 cells/16 cells displayed decreased apoptosis (3.1 ± 0.6). Our results suggest that MEC can be used for bovine embryo culture without detrimental effects on development and can help to predict blastocyst formation and quality of in vitro fertilization (IVF) embryos. Abbreviations: BSA: bovine serum albumine; COC: cumulus-oocyte complex; FERT-TALP: Tyrode's albumin lactate pyruvate fertilization; FBS: fetal bovine serum; IVF: in vitro fertilization; MEC: multiembryo chamber; PBS: phosphate buffered saline; SOF-AA: synthetic oviductal fluid with amino acids medium; TCM: Tissue Culture Medium.
653 $aCulture system
653 $aEmbryo kinetics
653 $aEmbryonic quality
653 $aSingle embryo culture
700 1 $aBARROS, B. A. F. de
700 1 $aMONTEIRO, C. A. S.
700 1 $aROSA, P. M. S.
700 1 $aLEAL, G. R.
700 1 $aSERAPIÃO, R. V.
700 1 $aCAMARGO, L. S. de A.
773 $tSystems Biology in Reproductive Medicine$gv. 65, n. 4, p. 301-311, 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Acre. |
|
Data corrente: |
23/10/2010 |
|
Data da última atualização: |
21/12/2023 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
OLIVEIRA, C. M. B. de; RIBAS, L. A. |
|
Afiliação: |
CAMILA MONTEIRO BRAGA DE OLIVEIRA, UNINORTE; LUCIANO ARRUDA RIBAS, CPAF-AC. |
|
Título: |
Composição florística em projeto de assentamneto agroextrativista no Acre. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE BOTÂNICA, 61., 2010, Manaus. Diversidade vegetal brasileira: conhecimento, conservação e uso: anais. Manaus: SBB, 2010. |
|
Páginas: |
1 p. |
|
Descrição Física: |
1 CD-ROM. |
|
Idioma: |
Português |
|
Conteúdo: |
O objetivo deste trabalho foi conhecer a composição florística do estrato arbóreo na Colocação Dois Barracos, uma área de 300 ha de Floresta Ombrófila Aberta localizada no Projeto de Assentamento Agroextrativista Limoeiro, situada no município de Bujari - Acre. |
|
Palavras-Chave: |
Floresta ombrófila. |
|
Thesagro: |
Biodiversidade. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/865013/1/23668.pdf
|
|
Marc: |
LEADER 00856nam a2200157 a 4500
001 1865013
005 2023-12-21
008 2010 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, C. M. B. de
245 $aComposição florística em projeto de assentamneto agroextrativista no Acre.$h[electronic resource]
260 $aIn: CONGRESSO NACIONAL DE BOTÂNICA, 61., 2010, Manaus. Diversidade vegetal brasileira: conhecimento, conservação e uso: anais. Manaus: SBB$c2010
300 $a1 p.$c1 CD-ROM.
520 $aO objetivo deste trabalho foi conhecer a composição florística do estrato arbóreo na Colocação Dois Barracos, uma área de 300 ha de Floresta Ombrófila Aberta localizada no Projeto de Assentamento Agroextrativista Limoeiro, situada no município de Bujari - Acre.
650 $aBiodiversidade
653 $aFloresta ombrófila
700 1 $aRIBAS, L. A.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Acre (CPAF-AC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
