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| CHIARATTI, M. R.; FERREIRA, C. R.; PERECIN, F.; NICIURA, S. C. M.; SANGALLI, J. R.; MESQUITA, L. G.; BALIEIRO, J. C. de C.; SMITH, L. C.; GARCIA, J. M.; MEIRELLES, F. V.. |
| Ooplasm transfer has been used successfully to treat infertility in women with ooplasmic insufficiency and has culminated in the birth of healthy babies. To investigate whether mitochondrial dysfunction is a factor in ooplasmic insufficiency, bovine oocytes were exposed to ethidium bromide, an inhibitor of mitochondrial DNA replication and transcription, during in-vitro maturation (IVM). Exposure of immature oocytes to ethidium bromide for 24?h during IVM hampered meiotic resumption and the migration of cortical granules. However, a briefer treatment with ethidium bromide during the last 4?h of IVM led to partial arrest of preimplantation development without affecting oocyte maturation. Ooplasm transfer was then performed to rescue the oocytes with... |
| Tipo: Artigo de periódico |
Palavras-chave: Embryo; Ethidium bromide; Oocyte; Transfer; Ooplasm; Mitochondrial DNA. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/876985 |
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