试管婴儿生产显著减少了牛胚胎之间的代谢差异
Denis Laloë1, Julie Gatien2, Camille Dupuy2
1UMR1313 GABI, INRAE, Université Paris-Saclay, AgroParisTech, 78350, Jouy-en-Josas, France.
Metabolomics : Official journal of the Metabolomic Society
|December 13, 2025
概括
与体内发育相比,体外胚胎生产显著降低了代谢变异性. 然而,体内胚胎的性别在早期发育过程中暂时影响代谢物变化.
科学领域:
- 生殖生物学 生殖生物学
- 胚胎学 胚胎学
- 代谢学 代谢学 代谢学
背景情况:
- 牛胚胎的体外生产 (IVP) 是常见的,但质量低于体内发育 (IVD) 的胚胎.
- 消耗培养基的代谢分析可以预测胚胎潜力,但变化的来源尚不清楚.
研究的目的:
- 在IVP和IVD牛胚胎之间比较消耗的培养基代谢.
- 分析基于胚胎阶段,等级和性别的变化.
主要方法:
- 使用1H-NMR光谱学分析了IVP和IVD牛胚胎的消耗培养基.
- 胚胎被单独培养,并以阶段,等级和性别为特征.
主要成果:
- IVP显著降低了胚胎间代谢变异性 (5-10倍低于IVD).
- 胚胎阶段和等级对IVP介质变异性贡献最小 (1%),但对IVD介质变异性贡献显著 (8-18%).
- 胚胎性别并没有影响IVD介质组成,但代谢物减少动力学在性别之间存在差异.
结论:
- 对IVP胚胎的标准化代谢概况引发了关于生物技术影响的问题.
- 在IVD胚胎中的代谢性差异在早期发育过程中是暂时的.
相关概念视频
01:24In Vitro Fertilization
840
In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
840
01:08Cloning of Dolly the Sheep
7.0K
The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter...
7.0K