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Doctoral Thesis
DOI
https://doi.org/10.11606/T.17.2012.tde-19042013-154338
Document
Author
Full name
Adriana Renzi
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2012
Supervisor
Committee
Lôbo, Raysildo Barbosa (President)
Ferriani, Rui Alberto
Lima, Vera Fernanda Martins Hossepian de
Meirelles, Flavio Vieira
Paz, Claudia Cristina Paro de
Title in Portuguese
Análise da influência do hormônio anti-Mülleriano na produção in vitro de embriões bovinos
Keywords in Portuguese
Bovinos
Fertilização In Vitro
Hormônio Anti-Mülleriano.
Maturação In Vitro
Abstract in Portuguese
A maturação in vitro de oócitos (MIV) é uma importante tecnologia reprodutiva a qual gera oócitos maduros capazes de suportar o desenvolvimento embrionário pré-implantacional e sua completa evolução à termo. Muitos fatores levam ao processo de maturação do oócito, e o AMH (hormônio anti-Mülleriano) tem demonstrado possuir um importante efeito nesta etapa. Neste trabalho nós demonstramos a influência da suplementação de AMH na maturação de complexos cumulus-oócito (COCs). Nossos resultados demonstram que não houve efeito na produção de embriões para COCS grau I. Entretanto, pudemos encontrar diferenças significativas entre os COCs graus II e III maturados na presença de 150ng/ml de AMH. Aqui também demonstramos que não houve diferença significativa na expressão relativa de mRNA para os genes AMHRII e FSHR no oócito, e na expressão relativa de mRNA para os genes AMH, AMHRII e FSHR nas células da granulosa. Nossos resultados corroboram com as importantes funções do AMH na produção de embriões, sugerem que a suplementação do meio de maturação de oócitos com AMH pode ajudar a melhorar a produção de blastocistos.
Title in English
Analysis Influence of the anti-Müllerian Hrmone on in vitro Bovine Embryo Production.
Keywords in English
Anti-Müllerian hormone.
Cattle
In Vitro Fertilization
In Vitro Maturation
Abstract in English
The in vitro oocyte maturation (MIV) is an important reproductive technology that generates mature oocytes able to support the preimplantation embryonic development and their fully evolution to term. Many factors lead to oocyte maturation process, and the AMH (AntiMüllerian hormone) have demonstrated important effects in the oocyte development. Here, we report the influence of AMH supplementation in the cumulus-oocyte complex (COCs) maturation. We found that AMH had no effect on embryo production of COCs grade I. On the other hand, significant differences between the COCs grade II and COCs grade III matured in AMH 150ng/ml were verified. We have also demonstrated that there were no significant difference in mRNA expression of the genes AMHRII and FSHR in the oocyte, and in mRNA of the genes AMH, AMHRII and FSHR in the granulosa cells. Taken together, the results corroborate the important roles for AMH on embryo production, and suggest that AMH supplementation could achieve successful outcome in the production of blastocysts.
 
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Publishing Date
2013-05-23
 
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