排序和捕获媒介对猪精子流动性,容量和活性的影响
Tyler Weide1, Juan Steibel1,2, Karl Kerns1,2
1Interdepartmental Genetics and Genomics, Iowa State University, Ames, Iowa, USA.
Andrology
|January 28, 2026
概括
优化捕获介质成分对于在光激活细胞分类 (FACS) 后保持精子质量至关重要. 适当的介质选择显著改善了精子的恢复和功能,提高了其在辅助生殖技术中的效用.
科学领域:
- 精子动物的功能性
- 辅助生殖技术是一种辅助生殖技术.
- 细胞分类 细胞分类
背景情况:
- 光激活细胞分类 (FACS) 对于选择特定的精子种群至关重要.
- 人们担心排序引起的生理损伤会影响精子容量.
研究的目的:
- 调查捕获介质的组成如何影响FACS后的精子恢复率.
- 评估在体外电容化 (IVC) 之前和之后排序精子的生理反应.
主要方法:
- 精子被使用FACS对六组不同介质 (补充BSA或PVA) 和一个对照进行了分类.
- 计算机辅助精子分析 (CASA) 和基于图像的流动细胞计 (IBFC) 评估了运动性,流量,氧化应激,膜重塑和线粒体活动.
- 排序后 (0小时) 及IVC (4小时) 4小时后 (4小时) 立即进行评估.
主要成果:
- 没有BSA或PVA的捕获介质产生了10%-24%的精子回收,而补充了88%-92% (p <0.05).
- 在IVC后,精子分类显示了血膜重塑和流量显著增加,并减少了线粒体活动 (p < 0.05).
- 在电容化后,线粒体和膜的变化更为明显,这表明分类延迟的压力效应.
结论:
- 捕获介质的组成显著影响FACS后的精子恢复和生理功能.
- 优化捕获介质和化条件对于维持农业和辅助生殖应用的精子质量至关重要.
- 通过介质配方将排序压力降到最低,可以提高精子质量和受精潜力.
相关概念视频
Equivalent Capacitance
705
From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...
705
Equivalent Capacitance
2.2K
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
The following strategies are adopted to calculate...
2.2K
Capacitors and Capacitance
9.3K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
9.3K
Sperm Transport
3.4K
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...
3.4K
Impact of Groups on Groups
241
Social psychologists analyze how groups influence one another, shaping social structures and interactions through both cooperation and competition. These dynamics manifest in various ways, ranging from economic partnerships to intergroup conflicts that shape societal structures and perceptions.Cooperation and Competition in Intergroup RelationsIntergroup relationships vary across contexts, sometimes fostering cooperation and mutual benefit while at other times leading to conflict and...
241
Design Example: Capacitance Multiplier Circuit
1.5K
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
1.5K


