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生殖衰老,前植入基因检测形积分,以及胚芽细胞的直径:大小是否重要?
Jakub Wyroba1,2, Joanna Kochan1,3, Maria Barszcz1
1Malopolski Institute of Fertility Diagnostics and Treatment – KrakOvi, Krakow, Poland.
Aging
|March 6, 2025
概括
对于接受体外受精 (IVF) 的女性来说,小型化胚胎囊更有可能是euploid,而不是大型扩张的胚胎囊. 这一发现对于选择胚胎进行移植至关重要,因为在不具备前植入性形性遗传检测 (PGT-A) 时,这种检测是不可用的.
科学领域:
- 生殖生物学 生殖生物学
- 胚胎学 胚胎学
- 遗传学 是一个遗传学.
背景情况:
- 孕产妇的衰老增加了IVF产生的胚胎囊的阳积分率.
- 无胚胎胚胎可能有受损的化,阻碍植入.
- 在植入前对阳积体的基因检测 (PGT-A) 并不是普遍可用的.
研究的目的:
- 评估胚胎特征 (化能力,直径) 是否可以估计26-45岁的女性进行ICSI胚胎移植后的成功率.
- 为没有PGT-A接入的试管婴儿诊所提供指导.
主要方法:
- 对502对接受细胞内质精子注射 (ICSI) 的夫妇进行了回顾性研究.
- 囊胚形态的分析,特别是化状态和直径.
- 在小型化和大型扩张胚胎细胞之间比较euploidy率.
主要成果:
- 小化芽细胞 (Bl. 5) 与大型扩张胚胎囊 (Bl.5) 相比,表现出明显更高的欧化率 (73%在≤35Y,51%在>35Y). 4) (58%在≤35Y,38%在≥35Y). (58%在≤35Y,38%在≥35Y) 的情况.
- 在34-38岁的女性中,化胚芽细胞的胚胎比扩张胚胎多10% (p <0.05).
结论:
- 在不进行PGT-A时,小型化胚囊是胚胎移植 (ET) 或冷胚胎移植 (FET) 较大的扩张胚囊的首选选择.
- 这种策略对于具有较高风险的老年患者特别有益.
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