Effets de la stimulation sur la qualité ovocytaire
- 作者：P. Clé ; ment
- 关键词：Assisted reproductive techniques (ART) ; Ovarian stimulation ; Oocyte quality ; Oocyte and embryo aneuploidy ; Epigenesis
- 刊名：Gynecology Obstetrique & Fertilite
- 出版年：2007
- 期刊代码：108_12979589
- 类别：med
- 出版时间：September 2007
- 卷：35
- 期：9
- 页码：890-897
- 文件大小：176 K
摘要
In all IVF programs, ovarian stimulation may lead to a hyperstimulation syndrome. Mild ovarian stimulations are suggested to reduce this complication of infertility treatment. In this article, we wonder what the consequences of different stimulations are on oocytes quality. The quality of the oocyte being the major factor of the development of a good embryo, it can be evaluated by direct or indirect techniques. Some are subjective. Several studies seem to show that ovarian stimulation has an influence on oocye quality, especially at a chromosomic and perharps, epigenetic level. It seems that a mild stimulation (for example with GnRH antagonist) selects less oocytes but with a better quality and produces euploid embryos. The uterine transfer of this kind of embryo should lead to an ongoing pregnancy.