相关实验视频
Updated: Jun 15, 2025

08:51
Human Egg Maturity Assessment and Its Clinical Application
Published on: August 19, 2019
19.2K
低卵细胞成熟度比率对胚胎细胞化率的影响:一项匹配的回顾性队列研究
Zhanhui Ou1, Jing Du1, Nengqing Liu1
1Reproductive Medicine Center, Boai Hospital of Zhongshan Affiliated to Southern Medical University, 6 Chenggui Road, East District, 528400, Zhongshan, China.
Contraception and reproductive medicine
|August 26, 2024
概括
在体外受精周期中低卵细胞成熟率不会影响胚胎细胞积率. 然而,它与更少的euploid胚胎囊转移和更低的临床怀孕成功有关.
科学领域:
- 生殖医学 生殖医学
- 遗传学 遗传学 是一个
- 在体外受精过程中受精.
背景情况:
- 卵细胞成熟度是成功受精和胚胎发育的关键因素.
- 评估卵细胞成熟度对胚胎细胞积的影响对于优化试管婴儿结果至关重要.
研究的目的:
- 为了研究在体外受精 (IVF) 周期期间低卵细胞成熟率与随后的胚胎细胞繁殖率之间的关联.
- 评估卵细胞成熟度与植入前遗传测试 (PGT) 周期中的关键结果之间的关系.
主要方法:
- 在2021年1月至2022年11月期间,对563次植入前遗传测试 (PGT) 周期进行了回顾性分析.
- 周期被分为低卵细胞成熟率组 (A组,<平均-1SD) 和平均卵细胞成熟率组 (B组,平均±1SD),B组与A组相匹配 2:1.
- 两组之间的胚胎学数据,胚胎囊病率和临床结果的比较.
主要成果:
- 与B组相比,A组表现出明显较低的卵细胞成熟度 (第二阶段卵细胞),MII卵细胞率和两个前核 (2PN) 率.
- 在A组 (44.9%) 和B组 (46.1%) 之间,每胚胎的euploid胚胎发育率没有显著差异.
- 然而,在A组 (59.1%) 与B组 (78.0%) 之间,产生欧普洛伊德胚胎囊的周期比例明显较低,A组的临床怀孕率较低 (58.0%),而B组的临床怀孕率较低 (73.9%).
结论:
- 低卵细胞成熟度比率与胚胎细胞化率没有直接关联.
- 卵细胞成熟度的降低会对实现转移欧体胚胎细胞的周期数产生负面影响.
- 较低的卵细胞成熟度与IVF周期中的2PN率降低和临床怀孕率降低相关.
相关概念视频
Oogenesis
63.6K
In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...
63.6K
Meiosis vs. Mitosis
54.4K
Cell division is necessary for growth and reproduction in organisms. Mitosis aids cell growth and development by dividing somatic cells. In contrast, meiosis causes the division of germ cells and plays an essential role in sexual reproduction. Due to their unique functional requirements, mitosis and meiosis differ from each other in multiple aspects.
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
54.4K
Cleavage and Blastulation
44.9K
After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
44.9K

