相关实验视频
Updated: Jul 11, 2025

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Mouse Oocyte Microinjection, Maturation and Ploidy Assessment
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卵细胞救援体外成熟不会对第一个介质分裂期间的染色体分离产生不利影响
Marga Esbert1, Cristina García1, Georgina Cutts2
1IVIRMA Global Research Alliance, IVI Barcelona, Barcelona, Spain.
Reproductive biomedicine online
|November 2, 2023
概括
卵子细胞的救援体外成熟 (IVM),有或没有累积细胞,产生类似的成熟率和euploidy. 与体内成熟相比,这种辅助生殖技术似乎不会影响染色体数量.
科学领域:
- 生殖生物学 生殖生物学
- 辅助生殖技术是一种辅助生殖技术.
- 人类胚胎学 人类胚胎学
背景情况:
- 试管成熟 (IVM) 提供了卵细胞成熟的替代方案,特别是对于那些有条件阻止卵巢刺激的妇女.
- 累积细胞在IVM期间支持卵细胞成熟的作用尚未完全阐明.
- 了解影响IVM成功的因素对于优化生育治疗至关重要.
研究的目的:
- 为了调查是否救援卵细胞的体外成熟 (IVM),有或没有累积细胞,影响介质变异I的进展.
- 为了比较救援IVM与in vivo成熟的卵细胞的介质和细胞遗传结果.
- 为了确定累积细胞是否增强IVM速率或卵细胞 ploidy.
主要方法:
- 一项前性研究分析了来自95名年轻捐赠者的390个卵细胞.
- 未成熟的卵细胞接受了救援IVM,包括 (IVM+CC) 或没有 (IVM-CC) 累积细胞.
- 使用下一代测序 (NGS) 进行的染色体拷贝数分析是在IVM的MII卵细胞和体内成熟卵细胞 (IVO) 上进行的.
主要成果:
- 在IVM+CC (62.8%) 和IVM-CC (71.5%) 组中,成熟率是可比的.
- 在所有组中,卵细胞化率相似:IVM+CC (75.4%),IVM-CC (83.9%) 和IVO (80.8%).
- 在IVM策略之间没有观察到成熟率或euploidy的显著差异.
结论:
- 累积细胞似乎没有改善胚芽囊泡和I元期卵细胞的体外成熟率.
- 救援IVM,无论累积细胞是否存在,都不会改变具有正常染色体数量的卵细胞的频率.
- 这些发现表明IVM是一种可行的选择,而不会对卵细胞化产生重大影响.
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