经过长时间的容量化后,使用冷解精子进行试管婴儿 (IVF) 的结果与马的ICSI相似:一种形态动力学研究
Soledad Martin-Pelaez1, Alejandro de la Fuente1, Kazuki Takahashi1
1Departments of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, USA.
Theriogenology
|November 6, 2024
概括
在马类胚胎生产中,使用冷解的精子进行体外受精 (IVF) 实现了与细胞内精子注射 (ICSI) 相当的发育率. 试管婴儿胚胎的发育速度更快,体积更大,有望得到更广泛的临床应用.
科学领域:
- 生殖生物学 生殖生物学
- 胚胎学 胚胎学
- 动物科学动物科学
背景情况:
- 内细胞质精子注射 (ICSI) 是马类胚胎生产的标准,因为在体外受精 (IVF) 的成功历史很差.
- 最近的试管婴儿进步显示出希望,但通常需要新鲜的精液,限制了临床应用.
- 试管婴儿与ICSI马类胚胎的形态动力学的关键差异在很大程度上仍然没有特征.
研究的目的:
- 通过试管婴儿 (IVF) 使用冷解精子生产的马类胚胎的发育速度和形态动力学与通过临床ICSI生产的胚胎进行比较.
- 评估使用冷解精液进行马类试管婴儿的潜力,以实现更广泛的临床采用.
主要方法:
- 在体外受精 (IVF) 使用冷解马精子 (精选,10小时容量) 在109个卵子细胞上进行.
- 分析了发育参数 (裂变,胚芽细胞率) 和时间间隔成像 (形态动力学,胚胎大小).
- 试管婴儿的结果与同时进行的临床ICSI周期进行了比较.
主要成果:
- 在试管婴儿 (41.1%) 和ICSI (41.8%) 周期中,整体胚胎细胞发作率相似.
- 与ICSI胚胎相比,通过试管婴儿产生的胚胎表现出明显更快的胚胎囊扩张 (155.5小时与167.2小时相比),并且较大 (22608微米2与20806微米2).
- 试管婴儿胚胎的更快的发育和更大的尺寸可能表明更先进的发育阶段.
结论:
- 使用冷解的精子进行马类试管婴儿可以达到与ICSI相当的发育率.
- 试管婴儿导致胚胎发育加速和更大的囊胚,这表明改善结果的潜力.
- 虽然需要更多的冷解精液,但试管婴儿显示出在马类繁殖中临床应用的巨大潜力.
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