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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com rosangela.lacerda@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
12/12/2012 |
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Data da última atualização: |
09/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CAMPOS JUNIOR, P. H. A.; ASSUNÇÃO, C. M.; CARVALHO, B. C. de; BATISTA, R. I. T. P.; GARCIA, R. M. G.; VIANA, J. H. M. |
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Afiliação: |
PAULO HENRIQUE ALMEIDA CAMPOS JUNIOR, UFMG; CAROLINA MARINHO ASSUNÇÃO, UFJF; BRUNO CAMPOS DE CARVALHO, CNPGL; RIBRIO IVAN TAVARES PEREIRA BATISTA, UFJF; RAUL MARCEL GONZALEZ GARCIA, UFJF; JOAO HENRIQUE MOREIRA VIANA, CNPGL. |
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Título: |
Follicular populations, recruitment and atresia in the ovaries of different strains of mice. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Reproductive Biology, v. 12, n. 1. p. 41-55, 2012. |
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DOI: |
https://doi.org/10.1016/S1642-431X(12)60076-X |
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Idioma: |
Inglês |
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Conteúdo: |
Follicular atresia is a key event in the selection of the ovulatory follicles and occurs during all developmental stages. The aims of the study were to evaluate the follicular population as well as the rates of follicular recruitment and atresia in different strains of mice. Ovaries were obtained from four strains of mice: G1/Swiss, G2/F1 Swiss×C57BL/6, G3/inbred strain C57BL/6, and G4/F1 C57BL/6×Swiss. All mice used in the study were 60 days old. Ovaries collected from the mice were fixed and processed for histological analysis. The G2 ovaries were also used to examine immunolocalization of active caspase-3. The pimordial follicle population was smaller in G3 mice than in G1, G2 and G4 groups (7 565±1 845 vs. 17 180±3 159, 14 785±3 319 and 13 325±2 685, respectively; p<0.05). The rate of follicular recruitment in G3, however, was higher than in the other groups (29.2% vs. 18.2%, 17.3% and 13.0% in G1, G2 and G4, respectively; p<0.05), resulting in a similar (p>0.05) number of antral follicles among groups. The small follicular pool in G3 mice was also associated with a lower rate of follicular atresia (11.4% vs. 17.2%, 16.7% and 13.6% for G3, G1, G2 and G4, respectively; p<0.05). The number of follicles stained with active caspase-3 was higher (p<0.05) during the final stage of preantral folliculogenesis than in other stages of follicular development suggesting that apoptosis in mice occurs earlier in comparison to large animals. Thus, it was concluded that differences in follicle reservoir among mice strains are compensated by an increased rate of follicular recruitment and a decreased rate of follicular atresia; and atresia occurs in mice mainly at the end of the preantral stage of folliculogenesis. MenosFollicular atresia is a key event in the selection of the ovulatory follicles and occurs during all developmental stages. The aims of the study were to evaluate the follicular population as well as the rates of follicular recruitment and atresia in different strains of mice. Ovaries were obtained from four strains of mice: G1/Swiss, G2/F1 Swiss×C57BL/6, G3/inbred strain C57BL/6, and G4/F1 C57BL/6×Swiss. All mice used in the study were 60 days old. Ovaries collected from the mice were fixed and processed for histological analysis. The G2 ovaries were also used to examine immunolocalization of active caspase-3. The pimordial follicle population was smaller in G3 mice than in G1, G2 and G4 groups (7 565±1 845 vs. 17 180±3 159, 14 785±3 319 and 13 325±2 685, respectively; p<0.05). The rate of follicular recruitment in G3, however, was higher than in the other groups (29.2% vs. 18.2%, 17.3% and 13.0% in G1, G2 and G4, respectively; p<0.05), resulting in a similar (p>0.05) number of antral follicles among groups. The small follicular pool in G3 mice was also associated with a lower rate of follicular atresia (11.4% vs. 17.2%, 16.7% and 13.6% for G3, G1, G2 and G4, respectively; p<0.05). The number of follicles stained with active caspase-3 was higher (p<0.05) during the final stage of preantral folliculogenesis than in other stages of follicular development suggesting that apoptosis in mice occurs earlier in comparison to large animals. Thus, it was concluded that differences in f... Mostrar Tudo |
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Palavras-Chave: |
Folliculogenesis. |
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Thesaurus Nal: |
apoptosis; caspase-3; heterosis. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02495naa a2200241 a 4500
001 1942169
005 2024-02-09
008 2012 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S1642-431X(12)60076-X$2DOI
100 1 $aCAMPOS JUNIOR, P. H. A.
245 $aFollicular populations, recruitment and atresia in the ovaries of different strains of mice.$h[electronic resource]
260 $c2012
520 $aFollicular atresia is a key event in the selection of the ovulatory follicles and occurs during all developmental stages. The aims of the study were to evaluate the follicular population as well as the rates of follicular recruitment and atresia in different strains of mice. Ovaries were obtained from four strains of mice: G1/Swiss, G2/F1 Swiss×C57BL/6, G3/inbred strain C57BL/6, and G4/F1 C57BL/6×Swiss. All mice used in the study were 60 days old. Ovaries collected from the mice were fixed and processed for histological analysis. The G2 ovaries were also used to examine immunolocalization of active caspase-3. The pimordial follicle population was smaller in G3 mice than in G1, G2 and G4 groups (7 565±1 845 vs. 17 180±3 159, 14 785±3 319 and 13 325±2 685, respectively; p<0.05). The rate of follicular recruitment in G3, however, was higher than in the other groups (29.2% vs. 18.2%, 17.3% and 13.0% in G1, G2 and G4, respectively; p<0.05), resulting in a similar (p>0.05) number of antral follicles among groups. The small follicular pool in G3 mice was also associated with a lower rate of follicular atresia (11.4% vs. 17.2%, 16.7% and 13.6% for G3, G1, G2 and G4, respectively; p<0.05). The number of follicles stained with active caspase-3 was higher (p<0.05) during the final stage of preantral folliculogenesis than in other stages of follicular development suggesting that apoptosis in mice occurs earlier in comparison to large animals. Thus, it was concluded that differences in follicle reservoir among mice strains are compensated by an increased rate of follicular recruitment and a decreased rate of follicular atresia; and atresia occurs in mice mainly at the end of the preantral stage of folliculogenesis.
650 $aapoptosis
650 $acaspase-3
650 $aheterosis
653 $aFolliculogenesis
700 1 $aASSUNÇÃO, C. M.
700 1 $aCARVALHO, B. C. de
700 1 $aBATISTA, R. I. T. P.
700 1 $aGARCIA, R. M. G.
700 1 $aVIANA, J. H. M.
773 $tReproductive Biology$gv. 12, n. 1. p. 41-55, 2012.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 9 | |
| 3. |  | OLIVEIRA, R. A. de; DAROS, E.; BESPALHOK-FILHO, J. C.; ZAMBON, J. L. C.; IDO, O. T.; WEBER, H.; RESENDE, M. D. V. de; ZENI-NETO, H. Seleção de famílias de cana-de-açúcar via modelos mistos. Scientia Agraria, Curitiba, v. 9, n. 3, p. 269-274, 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
| Biblioteca(s): Embrapa Florestas. |
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| 4. | | OLIVEIRA, R. A. de; DAROS, E.; BESPALHOK-FILHO, J. C.; RESENDE, M. D. V. de; ZAMBON, J. L. C.; IDO, O. T.; WEBER, H.; ZENI-NETO, H. Seleção via procedimento BLUPIS versus seleção massal em cana-de-açúcar. In: CONGRESSO NACIONAL DA STAB, 9., 2008, Maceió. Anais.[S.l.]: Sociedade dos Técnicos Açucareiros e Alcooleiros do Brasil, 2008. p. 537-550.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Florestas. |
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| 5. | | OLIVEIRA, R. A. de; DAROS, E.; RESENDE, M. D. V. de; BESPALHOK FILHO, J. C.; José Luis Camargo Zambon; RUARO, L. Early selection in sugarcane family trials via BLUP and BLUPIS procedures. Acta Scientiarum: Agronomy, Maringá, v. 35, n. 4, p. 427-434, oct./dec. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 6. | | BARBOSA, M. H. P.; RESENDE, M. D. V. de; DIAS, L. A. dos S.; BARBOSA, G. V. de S.; OLIVEIRA, R. A. de; PETERNELLI, L. A.; DAROS, E. Genetic improvement of sugar cane for bioenergy: the Brazilian experience in network research with RIDESA. Crop Breeding and Applied Biotechnology, Viçosa, MG, S2, p. 87-98, Dec. 2012. Special issue.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 7. | | OLIVEIRA, R. A. de; RESENDE, M. D. V. de; DAROS, E.; BESPALHOK FILHO, J. C.; ZAMBON, J. L. C.; IDO, O. T.; WEBER, H.; KOEHLER, H. S. Genotypic evaluation and selection of sugarcane clones in three environments in the state of Paraná. Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, p. 426-434, 2005.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Florestas. |
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| 8. | | OLIVEIRA, R. A. de; DAROS, E.; RESENDE, M. D. V. de; BESPALHOK-FILHO, J. C.; ZAMBON, J. L. C.; SOUZA, T. R. de; LUCIUS, A. S. F. Procedimento Blupis e seleção massal em cana-de-açúcar. Bragantia, Campinas, v. 70, n. 4, p. 796-800, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 9. | | BUZZELLO, G. L.; PELISSARI, A.; MORAES, A. de; DESCHAMPS, C.; PORFIRIO-DA-SILVA, V.; OLIVEIRA, E. B. de; LUSTOSA, S. B. C.; SKORA NETO, F.; OLIVEIRA, R. A. de. Índices não paramétricos estimados pela combinação de diferentes caracteres com acumulação de biomassa como critério de avaliação da competição de cultivares de soja com e sem sombreamento. Revista Brasileira de Biometria, v. 33, n. 3, p. 310-329, jul./set. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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