新鲜和冷保存的牛 (Bison bonasus) epididymal 精子细胞的形态学,形态学和功能
Maria Eberhardt1, Sylwia Prochowska2, Agnieszka Partyka2
1Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Plac Grunwaldzki 49, 50-366, Wrocław, Poland. maria.eberhardt@upwr.edu.pl.
Scientific reports
|August 24, 2023
概括
维森 (Bison bonasus) 的死后 epididymal 精子从维森 (Bison bonasus) 提供了关键的遗传材料用于保护. 使用Tris缓冲器和蛋黄扩展器进行冷保存,可以有效地保护这种宝贵的遗传资源.
科学领域:
- 生殖生物学 生殖生物学
- 保护遗传学 保护遗传学
- 精子生物学 精子生物学
背景情况:
- 流行性精子是重要的遗传资源,特别是对于遗传多样性有限的物种,如牛 (Bison bonasus).
- 智能种群在很大程度上来自少数祖先,需要强有力的保护策略,包括胚胎血储存,以保持遗传多样性.
研究的目的:
- 为了全面地描述从死后的精子周围细胞的形态学,形态学和功能.
- 为了评估冷保存的有效性,使用Tris缓冲基扩展器和蛋黄对明智的外皮细胞精子进行了评估.
主要方法:
- 从死后的智能个体中收集和分析 epididymal 精子.
- 精子参数的评估,包括运动性,活力,正常形态,头部大小,膜完整性,青体完整性,染色质碎片化,线粒体潜力和脂质过氧化.
- 通过对前述精子参数的解后分析,评估冷保存的有效性.
主要成果:
- 每个个体获得了1985.0 × 10^6个精子的中位数,初始中位数为40.0%的运动率,69.8%的生存率和54.3%的正常形态.
- 结前的分析显示,完整的精子膜 (53.2%),完整的体 (50.8%),碎片化色素 (0.4%),高线粒体潜力 (5.9%) 和缺乏脂质过氧化 (42.1%) 的特定中位数百分比.
- 解后的分析显示了减少但仍然显著的值:18.4%完整的膜,35.1%完整的体,0.07%碎片化色素,12.8%高线粒体潜力和16.3%没有脂质过氧化,表明成功的冷保存.
结论:
- 这项研究为明智的外皮膜精子评估建立了基线标准,这对保护工作至关重要.
- 使用Tris缓冲扩展剂加上蛋黄的冷保存是有效的,用于保存明智的遗传物质.
- 这些发现支持在辅助生殖技术 (ART) 中使用这些方法,用于明智的保护计划.
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