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5 - 氨基氨酸通过增强线粒体功能来改善鱼化后的精子质量
Hongyan Zhang1, Bin Wu1, Yongjin Liu1
1College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China.
Poultry science
|October 28, 2025
概括
补充鱼精子冷扩展器与5-氨基氨基酸 (5-ALA) 显著改善解后的质量. 这种5-ALA治疗增强了线粒体功能,减少了氧化应激,提高了精子的运动性和活力.
科学领域:
- 动物科学动物科学
- 生殖生物学 生殖生物学
- 生物化学 生物化学
背景情况:
- 冷保存对于家禽遗传资源至关重要,但由于冷损伤,鱼的精子质量在解后下降.
- 线粒体功能障碍和氧化应激是降低精子活力和受精能力的关键因素.
研究的目的:
- 为了研究5 - 氨基氨酸 (5-ALA) 在冷保存期间对精子的保护作用.
- 为了确定5-ALA的最佳度,以改善解后的精子参数.
主要方法:
- 德雷克的精液是冷保存的,具有不同度的5-ALA (0, 100, 250, 500, 1000微米).
- 解后的精子质量通过评估运动性,体完整性,活力,线粒体膜潜力 (MMP),ATP水平,活性氧物种 (ROS) 和脂质过氧化 (LPO) 来评估.
主要成果:
- 用500μM的5-ALA补充剂显著改善了解后的精子运动性,体完整性和活力.
- 5-ALA治疗增强了线粒体复合体IV活性,MMP和ATP水平,表明能量代谢得到改善.
- 5-ALA显著降低了ROS,LPO,亡和DNA碎片化,减轻了氧化应激损伤.
结论:
- 5-ALA通过支持线粒体功能和减少氧化应激,有效地保护鱼精子免受冷保存损伤.
- 优化的5-ALA补充剂增强了精子的生命力和运动性,提高了家禽遗传资源的冷保存效率.
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