相关实验视频
Updated: May 31, 2025

08:58
Fluorimetric Techniques for the Assessment of Sperm Membranes
Published on: November 28, 2018
13.2K
精液等离子体中脂质度升高可以降低simmental公牛的精子流动性
Zhuo Yang1, Fang Luo1, Chenglei Song1
1College of Animal Science and Technology, Ningxia University, Yinchuan 750021, China.
Animals : an open access journal from MDPI
|January 25, 2025
概括
西门特公牛的精子运动与精液等离子体脂质有关. 像PC,LPC和PE这样的特定脂质可以作为评估精子质量和男性生育能力的生物标志物.
科学领域:
- 动物繁殖动物的繁殖
- 利皮多米克 (Lipidomics) 是一种消化剂.
- 兽医科学是一门兽医科学.
背景情况:
- 精子运动性对于跨物种的男性生育能力至关重要.
- 精液等离子体中的脂质概况与精子质量有关.
研究的目的:
- 为了研究精子机动性和精液等离子体脂质概况在Simental公牛之间的关系.
- 识别影响精子运动的潜在脂质生物标志物.
主要方法:
- 来自26头simmental公牛的精液样本使用计算机辅助精子分析 (CASA) 分析了精子质量.
- 用液体染色学-并联质谱法 (LC-MS/MS) 确定脂质配置文件.
- 多变量统计分析确定了高和低精子运动率组之间的差异性脂质.
主要成果:
- 高精子机动性 (HSM) 的公牛与低精子机动性 (LSM) 的公牛相比,显示出明显更好的生存能力,速度,节拍交叉频率和宏细胞完整性.
- 在LSM组中,39种不同的脂质,主要是甘油三和肉,被上调.
- 特定的脂 (PC,LPC,PE) 在区分运动性群体方面表现出高精度 (AUC>0.7).
结论:
- 精液等离子体脂质概况在高精子运动率和低精子运动率的公牛之间有显著差异.
- 一些脂,包括PC,LPC和PE,显示出潜在的生物标志物,用于预测Simental公牛的精子运动性.
- 了解这些脂质概况可以帮助评估公牛的雄性生育能力和生殖效率.
相关概念视频
Infertility in Males
239
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
239
Sperm Structure and Semen Composition
1.1K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
1.1K
Blood Studies for Cardiovascular System III: Serum Lipid Profile
128
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
128
Sperm Transport
606
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...
606
Spermatogenesis
102.1K
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...
102.1K

