停止调节的精子代谢动态,使得家禽液体精液储存中的生育时间延长
Pangda Sopha Sushadi1, Maiko Kuwabara1, Ei Ei Win Maung1
1Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8572, Japan.
Scientific reports
|December 8, 2023
概括
在精液扩展器中化离子可显著改善生育能力. 这种方法优化了线粒体功能和ATP水平,促进了家禽精液的保存.
科学领域:
- 生殖生物学 生殖生物学
- 动物科学动物科学
- 生物化学 生物化学
背景情况:
- 液体精液的保存对于畜牧业和动物保护至关重要,但禽类精子的生育能力在体外快速下降.
- 细胞内离子 ([Ca2+]i) 调节精子的能量代谢,但它们在储存期间对鸟类精子生育能力的作用还未得到充分研究.
- 哺乳动物研究表明,减少[Ca2+]i可以提高精子保存.
研究的目的:
- 为了研究化对精子在液体保存过程中的生育能力的影响.
- 阐明对鸟类精子代谢和生育能力的影响的潜在机制.
- 探索改善家禽液体精液扩展器的新策略.
主要方法:
- 在精液扩展器中使用了细胞外 (EGTA) 和细胞内 (EGTA-AM) 胆剂.
- 通过体内生育试验评估精子生育能力.
- 分析了线粒体新陈代谢,ATP代谢和dynein ATPase活动.
主要成果:
- EGTA和EGTA-AM都在液体精液中延长了精子的生育能力.
- 化差异调节线粒体呼吸和ATP积累,诱导缺氧.
- 观察到与[Ca2+]i降低和细胞质酸性化相关的双模控制dynein ATPase活性.
结论:
- 细胞外和细胞内化是增强液精液保存的有效策略.
- 这些机制包括对线粒体代谢和ATP利用的协调调节.
- 这些发现为鸟类精子在体内存储提供了洞察力,并改善了人工授精技术.
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