N-乙囊对人类解后精子质量和线粒体解蛋白2相对数量的影响
Pegah Dorodian1, Abdolhossein Shahverdi1,2, AliReza Alizadeh1,2
1Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
Biopreservation and biobanking
|June 26, 2025
概括
在冷保存后,N-乙囊 (NAC) 提高了精子的运动性和活力. 虽然冷保存降低了线粒体解蛋白2 (UCP2) 的水平,但NAC补充剂不会改变UCP2的数量,但会增强精子功能.
科学领域:
- 生殖生物学 生殖生物学
- 低温生物学 低温生物学
- 生物化学 生物化学
背景情况:
- 人类精子的冷保存通过反应性氧物种 (ROS) 诱导损伤,损害了运动性和生育能力.
- N-乙囊 (NAC) 是一种抗氧化剂,可以清除ROS并调节线粒体活动.
- 线粒体解蛋白2 (UCP2) 对人类精子的运动性和新陈代谢至关重要.
研究的目的:
- 为了研究N-乙囊 (NAC) 对冷解的人类精子中UCP2水平的影响.
- 评估NAC对冷保存后精子质量参数的影响.
主要方法:
- 来自normozoospermic男性的人类精液样本被分为新鲜,冷的对照,冷的NAC治疗和冷的基尼治疗组.
- 评估经解后的精子质量,包括运动性和活力.
- 测量UCP2的相对数量,ROS,线粒体膜潜力 (MMP) 和malondialdehyde.
主要成果:
- 与对照组和基尼组相比,NAC治疗显著改善了总运动率,渐进运动率和活力 (p <0.05).
- 在所有冷群体和新鲜精子 (p < 0.0001) 中,UCP2的相对数量显著降低,NAC和对照组之间没有显著差异.
- 在冷组中,没有观察到MMP,ROS或malondialdehyde水平的显著差异.
结论:
- 冷保存诱导UCP2的修改,可能解释了降低后解精子的运动性.
- 在冷介质中补充NAC可以提高解后的精子运动性和活力.
- NAC对精子功能的好处似乎独立于解后的直接UCP2量调制.
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