形态动力学模型和形态选择的比较,以优先考虑euploid胚胎:一个多中心队列研究
Thomas Bamford1, Rachel Smith2, Selina Young2
1Tommy's National Centre for Miscarriage Research, Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, UK.
Human reproduction (Oxford, England)
|November 14, 2023
概括
与胚胎学家的评估相比,像PREFER和LB这样的形态动力学模型显著改善了euploid胚胎选择. 这些人工智能驱动的工具为试管婴儿提供了更好的优先级,提高了成功率.
科学领域:
- 生殖医学 生殖医学
- 胚胎学 胚胎学
- 在体外受精 (IVF)
背景情况:
- 形态动力学算法分析了胚胎随着时间的推移而发展.
- PREFER和LB模型预测了euploidy和活产生的结果.
- 目前的方法依赖于胚胎学家的形态评估.
研究的目的:
- 为了比较形态动力学模型与胚胎学家选择优先考虑euploid胚胎的有效性.
- 评估 PREFER 和 LB 模型对欧体胚胎排名高于任意或专家选择的能力.
主要方法:
- 一项对1958年9家英国试管婴儿诊所的胚胎囊活检的队列研究.
- 将PREFER和LB模型与任意选择和四位盲目的胚胎学家进行比较.
- 用于性能指标的正常化贴现累积收益 (NDCG) 和曲线下的面积 (AUC) 的利用.
主要成果:
- PREFER和LB模型比胚胎学家 (39%) 和任意选择 (37%) 实现了更高的幼胚胎优先级 (47%和46%).
- 对于PREFER (0.96) 和LB (0.95) 的NDCG得分明显高于胚胎学家选择 (0.87).
- 形态学评估没有显著提高形态动力学模型的性能.
结论:
- 形态动力学模型在优先考虑转移euploid胚胎方面表现出卓越的性能.
- 这些模型为IVF胚胎选择提供了更客观,更有效的方法.
- 进一步整合形态动力学分析可以优化试管婴儿治疗结果.
相关概念视频
Fertilization
During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
Meiosis I
Meiosis is the division of a diploid cell into haploid cells forming sperm and eggs in animals through differentiation. Meiosis I is the first stage of meiosis, where the genetic recombination of homologous chromosomes and the reduction of the ploidy level by half occurs.
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Prophase I is the most extended and complex step of meiosis I characterized by synapsis, chromosome pairing, and recombination of the homologous chromosomes. This process is facilitated by a proteinaceous structure called the...
Meiosis vs. Mitosis
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...
Nondisjunction
Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers. Nondisjunction is common during anaphase I or anaphase II of meiosis. Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold sister...


