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严重的橄动物精子症对胚胎动态和形态质量的影响
Men Nguyen Thi1, Hoang Le2, Anh Vu Thi Mai2
1Tam Anh Hospital Joint Stock Company, Hanoi, Viet Nam. mennt@tamanhhospital.vn.
Journal of assisted reproduction and genetics
|March 4, 2026
概括
在ICSI周期中,严重的小动物精子受精会影响受精和第3天胚胎质量. 然而,胚芽细胞发育和后来的形态动力学基本上没有受到影响,这表明单独的精子度对后来的胚胎阶段的影响有限.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 胚胎学 胚胎学
- 在体外受精过程中受精.
背景情况:
- 严重的小动物精子缺血症是一种精子数量较低的情况,在成功受精和胚胎发育方面存在挑战.
- 细胞体内精子注射 (ICSI) 是一种常见的治疗方法,但严重的小动物精子对早期胚胎动态和胚胎细胞潜力的具体影响需要进一步阐明.
- 时间间隔系统提供了对早期胚胎发育的详细监测.
研究的目的:
- 在ICSI周期中,评估严重的橄动物精子症对早期裂变阶段动态和胚胎细胞发育能力的影响.
- 为了使用时差成像来比较严重的橄动物精子和正常动物精子群体之间的形态运动参数.
- 在精子度的背景下,识别可用的胚胎囊的预测因素.
主要方法:
- 在倾向性得分匹配后,对ICSI周期 (n=117) 具有严重的小动物精子症 (n=39) 和常态动物精子症 (n=78) 的回顾性匹配队列研究.
- 使用时隔系统,监测正常受精的胚胎 (2PN) 到第7天.
- 分析裂变阶段的形态动力学,异常的裂变模式和胚胎细胞的发育. 多变量分析,包括通用线性混合模型,用于评估可用的胚胎囊的预测指标.
主要成果:
- 严重的小动物精子缺陷与显著降低的受精率 (71.33%与77.98%) 和较低比例的高质量第3天胚胎 (51.25%与65.82%) 相关.
- 胚胎细胞形成和高质量的胚胎细胞形成率在不同组之间没有显著差异.
- 在严重的橄种群中观察到第二个细胞周期 (ECC2) 的统计学上显著但适度延长,对总体变异的影响有限. 后来的形态动力学和精子度并不是可用的胚胎细胞的独立预测因素.
结论:
- 严重的小动物精子缺血会对第3天的受精和早期胚胎质量产生负面影响.
- 尽管有初始影响,但当单独考虑精子度时,在实验室水平上很大程度上保留了胚胎细胞发育和后来的分裂阶段的形态动力学.
- 研究结果强调,虽然精子度影响早期,但其他因素可能对后期胚胎发育更为关键,未测量的精子功能缺陷可能起作用.
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