冲洗后的精子中的自发的基体反应和氨酸酸化度会影响双重原核形成率
Jin Liu1, Wenjing Cheng2, Keheng Zhu1
1Department of Reproductive Medicine Center, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China.
Reproductive biomedicine online
|October 1, 2025
概括
优化的精子功能,特别是自发性体反应 (sAR) 和氨酸酸化,在试管婴儿中显著影响了两个前核 (2PN) 的形成. 评估这些精子因子与女性基底FSH一起,对于预测和预防低2PN率至关重要.
科学领域:
- 生殖医学 生殖医学
- 在体外受精 (IVF)
- 精子功能的分析.
背景情况:
- 形成两个前核 (2PN) 是在常规试管婴儿中成功受精的关键指标.
- 已知精子功能因素和女性荷尔蒙特征会影响2PN率,但它们的具体贡献需要进一步阐明.
研究的目的:
- 研究优化的精子功能因素对传统试管婴儿中两个前核 (2PN) 形成的速度的影响.
- 分析精子功能参数和女性因素对2PN形成和随后的临床结果的影响.
主要方法:
- 一项涉及778个试管婴儿周期的前性研究,分析了准备好的精子和女性因素的功能因素.
- 为了进行比较分析,患者根据2PN形成率 (<50%,50-70%,70-90%,≥90%) 分类.
- 使用顺序逻辑回归和多变量限制立方线 (RCS) 分析来评估因素影响.
主要成果:
- 自发体反应 (sAR) 与2PN形成正相关 (OR 1.331),而氨酸酸化显示出负相关性 (OR 0.717).
- 女性的 FSH 基底水平显著影响了 2PN 形成 (OR 2.216),并观察到非线性模式.
- 在年轻女性 (<35岁) 中,与较高的2PN组相比,具有<50%的2PN形成的植入率较低.
结论:
- 精子的功能因素,包括sAR和氨酸酸化,在IVF期间在正常的前核形成中起着重要作用,与女性的基础FSH一起.
- 建议在IVF前对精子sAR和氨酸酸化进行评估,以预测和减轻低2PN形成率.
- 了解这些因素可以帮助优化试管婴儿的成功率并改善临床结果.
相关概念视频
Fertilization
89.8K
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...
89.8K
Spermatogenesis
121.9K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
121.9K
Meiosis I
217.9K
Meiosis is a carefully orchestrated set of cell divisions, the goal of which—in humans—is to produce haploid sperm or eggs, each containing half the number of chromosomes present in somatic cells elsewhere in the body. Meiosis I is the first such division, and involves several key steps, among them: condensation of replicated chromosomes in diploid cells; the pairing of homologous chromosomes and their exchange of information; and finally, the separation of homologous chromosomes by...
217.9K
Meiosis II
207.0K
Meiosis II is the second and final stage of meiosis. It relies on the haploid cells produced during meiosis I, each of which contain only 23 chromosomes—one from each homologous initial pair. Importantly, each chromosome in these cells is composed of two joined copies, and when these cells enter meiosis II, the goal is to separate such sister chromatids using the same microtubule-based network employed in other division processes. The result of meiosis II is two haploid cells, each...
207.0K


