通过体外实验使用雌激素和孕调节精子功能:系统性审查
Muloongo C Sitali1, Madalitso Chelenga2
1Department of Biomedical Sciences, School of Veterinary Medicine, The University of Zambia, Lusaka, Zambia.
PloS one
|August 11, 2025
概括
类固醇激素孕激素 (P4) 和雌激素 (E2) 在体外显著影响精子功能和受精能力. 研究表明,P4增强了精子电容和体反应,而E2影响结合,改善了辅助生殖的结果.
科学领域:
- 生殖生物学 生殖生物学
- 内分泌学 在内分泌学.
- 精子生理学 精子生理学
背景情况:
- 类固醇激素孕激素 (P4) 和雌激素 (E2) 对于哺乳动物的繁殖至关重要.
- 这些激素可以在体外调节精子功能,帮助受精.
- 要了解它们的影响,需要检查带有和没有卵巢上皮细胞 (OEC) 的体外模型.
研究的目的:
- 系统地审查评估精子功能的体外实验模型.
- 研究E2和P4补充剂对精子的影响.
- 为了比较具有OEC的共同培养中的精子功能与没有OEC的培养.
主要方法:
- 在科学网,谷歌学者和PubMed.com上进行系统的文献搜索.
- 包括32个符合动物精子E2和P4影响体外模型的特定标准的文章.
- 数据综合和发现的描述性陈述.
主要成果:
- 研究中使用了来自各种物种的精子和卵管 (子,老鼠,老鼠,子,猪,绵羊,牛).
- P4促进了精子过度激活,电容和体反应 (AR),有助于OEC释放.
- E2延迟了电容,但增强了OEC结合;P4单独也诱导了AR和电容,改善了体外受精 (IVF) 率.
结论:
- 在体外研究表明,E2和P4对精子的行为和受精能力有剂量依赖的影响.
- 这些激素可以增强不同物种IVF计划中的精子功能.
- 对优化辅助生殖技术的特定物种机制需要进一步研究.
相关概念视频
Spermatogenesis
103.4K
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...
103.4K
Feedback Regulation of Calcium Concentration
3.5K
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.5K
Hormonal Regulation of the Menstrual Cycle
697
The ovarian cycle regulates endometrial changes throughout a single menstrual cycle via the coordinated action of gonadotrophin-releasing hormone (GnRH) and gonadotrophins.
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
At puberty, GnRH begins a pulsatile release pattern, which triggers the anterior pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). The frequency and amplitude of GnRH pulses vary across the menstrual cycle, with faster pulses favoring LH release and slower pulses favoring FSH...
697


