重复的超声波脉冲保持精子的运动性
Ali Vafaie1, Sahar Shahali1, Mohammad Reza Raveshi1
1Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria 3800, Australia. reza.nosrati@monash.edu.
Lab on a chip
|December 4, 2024
概括
低强度脉冲超声波安全地提高精子运动能力超过一个小时. 这种非侵入性方法改善了精子功能,为辅助生殖技术提供了一个有前途的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 生殖生物学 生殖生物学
- 声学 声学 在声学方面
背景情况:
- 在辅助生殖中,精子运动对于成功受孕至关重要.
- 目前用于增强精子运动性的方法存在胚胎毒性的风险.
- 需要更安全,非侵入性的替代品来改善精子功能.
研究的目的:
- 调查低强度脉冲超声波 (LIPUS) 在维持和增强人类精子运动性的有效性.
- 评估基于声流体的脉冲超声波对精子运动参数的影响.
- 评估LIPUS暴露对精子活力和DNA完整性的安全性.
主要方法:
- 利用基于滴滴的声流体平台进行单个人类精子细胞分析.
- 对精子样本进行了重复的低强度脉冲超声波暴露.
- 在一个小时的时间内,精子运动参数的量化变化.
- 评估了超声波暴露后的精子活力和DNA完整性.
主要成果:
- 重复的脉冲超声波显著维持了精子运动超过一个小时.
- 与未暴露的精子相比,运动参数至少提高了25%.
- 增强的运动性在最初不进展的精子中更为明显.
- 没有观察到精子生命力或DNA完整性的妥协.
结论:
- 低强度脉冲超声波是一种安全有效的非侵入性方法,用于增强和维持精子运动性.
- 这种声流体方法为辅助生殖中传统化学剂提供了一个有希望的替代方案.
- 这些发现表明,通过超声波介导的精子增强,有望改善辅助生殖的结果.
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