基于倒置显微镜的评估显示,剥离和非剥离的GV卵细胞之间存在很大的成熟差距:一种新的r-IVM方法
Nuri Peker1, Ayşen Yücetürk1, Özge Karaosmanoğlu1
1Acıbadem Maslak Hospital, In Vitro Fertilization Center, İstanbul, Türkiye.
Turkish journal of obstetrics and gynecology
|March 5, 2026
概括
在未成熟的卵细胞成熟过程中保存积卵细胞复合体 (COC) 显著改善了受精和胚胎发育率. 非脱皮的不成熟卵细胞显示出优异的结果,与那些遭受脱皮的卵细胞相比.
科学领域:
- 生殖生物学 生殖生物学
- 在试管婴儿受精体外受精.
- 卵细胞成熟的过程
背景情况:
- 未成熟的卵细胞需要特定的条件来成熟和发展潜力.
- 累积卵细胞复合体 (COC) 脱皮是一种标准程序,但它对不成熟卵细胞的影响仍在争论中.
研究的目的:
- 为了比较被剥离的未成熟卵细胞的成熟率和发育潜力,与那些没有被剥离的卵细胞相比.
- 评估保存COC对后续受精和胚胎发育的影响.
主要方法:
- 一项前性观察性研究,涉及52名患者的885个卵细胞.
- 未成熟的生殖囊泡 (GV) 卵细胞被分为两组:脱皮 (组1) 和非脱皮的COC (组2).
- 卵子被培养了24小时,随后评估了成熟,受精 (细胞内精子注射) 和分裂阶段的胚胎发育.
主要成果:
- 非剥离的不成熟卵子细胞 (组2) 与剥离的卵子细胞 (组1,2.37%) 相比,成熟率显著更高 (36.9%).
- 非剥离卵子细胞的受精率为47.9%,而剥离卵子细胞的受精率为0.95%.
- 第三天胚胎发育率在非脱皮组 (73.4%) 与脱皮组 (0%) 相比,在非脱皮组 (73.4%) 也明显高.
结论:
- 在不成熟的卵子细胞中保存积卵子复合体 (COC) 提高了它们的发育潜力.
- 与剥离的卵子相比,非剥离的不成熟卵子表现出更高的成熟,受精和胚胎发育率.
- 这表明,避免过早脱皮可能会改善辅助生殖技术的结果.
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