相关实验视频
Updated: Jun 28, 2025
10:02
Two Types of Assays for Detecting Frog Sperm Chemoattraction
Published on: December 27, 2011
19.0K
通过在不受限制的条件下追踪精子来探索改变的牛精子轨迹
Luigi Fausto Canonico1, Claudia De Clemente1, Margarida Fardilha2
1Interdisciplinary Research Centre on Biomaterials (CRIB) and Dipartimento di Ingegneria Chimica, Dei Materiali e Della Produzione Industriale, University of Naples "Federico II", Naples, Italy.
Frontiers in veterinary science
|April 17, 2024
概括
不孕症的增加需要改善精子分析. 这项研究建议使用玻璃毛细血管进行无限制的运动性分析,为评估精子功能的诊断提供了一个更具多功能性和适应性的诊断工具.
科学领域:
- 生殖生物学 生殖生物学
- 安德罗学与人类学
- 生物物理学的生物物理.
背景情况:
- 全球不孕率的上升凸显了对先进的精子分析技术的需求.
- 传统的计算机辅助精子分析 (CASA) 被局限的几何形状所限制,无法捕捉生理3D精子运动.
- 人们对可负担得起的,多功能替代品有需求,以改善精子运动诊断.
研究的目的:
- 提出和验证一种新的,不受限制的精子运动性分析方法.
- 评估杀虫剂赛珀美林对精子运动模式的影响.
- 为了证明拟议的全方位精子检查方法的适应性.
主要方法:
- 利用亮场显微镜在矩形玻璃毛细血管中进行精子运动性分析.
- 开发了一种定制的跟踪程序,以分析长时间的精子运动模式.
- 根据曲线速度和多个时间点评估的农药效应,分类精子子群.
主要成果:
- 不受限制的分析捕获了变化的精子运动模式,包括增加的速度和渐进性.
- 暴露于cypermethrin诱导了循环运动模式和精子子群的重新分配.
- 尽管整体速度增加,但随着时间的推移,观察到快速精子类的下降.
结论:
- 提出的无限制精子运动性分析是一种灵活和可适应的方法.
- 这种方法为现有的精子分析诊断工具提供了有价值的增强.
- 该技术在更接近生理条件下的精子运动性提供了更全面的检查.
相关概念视频
01:15Sperm Transport
788
The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
The maturation phase occurs in the epididymis, where sperm...
788
01:41Spermatogenesis
102.4K
Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
102.4K