在ICSI周期中,在ICSI后5小时早期的救援卵细胞激活是避免意外受精失败和低受精率的有用策略
Lintao Xue1, Shikai Wang1, Pingpin Wei1
1Reproductive Medical and Genetic Center, The People's Hospital of GuangXi Zhuang Autonomous Region, Nanning, China.
Frontiers in endocrinology
|January 19, 2024
概括
在细胞内精子注射 (ICSI) 后5小时的早期救援卵细胞激活有效地防止意外受精失败 (UFF) 和意外低受精 (ULF). 通过时间间隔成像监测极体挤出,可以准确预测受精,从而能够及时干预以改善ICSI结果.
科学领域:
- 生殖医学 生殖医学
- 胚胎学 胚胎学
- 在体外受精中进行体外受精.
背景情况:
- 延迟或失败的卵细胞激活在细胞内注射精子 (ICSI) 周期中是一个挑战.
- 以前试图在ICSI后24小时晚期激活卵细胞的结果不佳.
- 意想不到的受精失败 (UFF) 和意想不到的低受精 (ULF) 可能会对ICSI成功率产生负面影响.
研究的目的:
- 在ICSI周期中开发一个预测受精失败的早期指标.
- 在ICSI后5小时调查早期救援卵细胞激活 (EROA) 的有效性.
- 改善受精,胚胎发育和在经历UFF或ULF的ICSI周期中的临床结果.
主要方法:
- 追溯分析278个ICSI周期的时间间隔数据,以确定受精失败的预测指标.
- 对14个UFF和20个ULF周期的观测研究,在没有极体 (Pb2) 挤出的情况下对卵细胞进行EROA.
- 评估受精效率,胚胎发育和EROA后的临床结果.
主要成果:
- 在ICSI后5小时的极体 (Pb2) 挤出,通过时间延迟成像监测,表现出高灵敏度 (99.59%) 和特异性 (99.78%) 预测受精.
- 没有Pb2挤出的卵细胞中的EROA产生了可接受的受精率 (75.00%),优质胚胎率 (42.59%),以及胚胎细胞形成率 (48.28%).
- 被救出的UFF (40.00%) 和ULF (57.14%) 周期的临床怀孕率与标准Pb2挤出组的临床怀孕率相当.
结论:
- 在ICSI后5小时使用时间延迟成像监测Pb2挤出是预测受精结果的可靠方法.
- 在ICSI后5小时的早期救援卵细胞激活 (EROA) 是缓解UFF和ULF的有效策略.
- EROA提供了一种可行的解决方案,以提高预测受精问题的ICSI周期的成功率.
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