精子DNA碎片化及其与男性不孕症的精液参数的关联:一个横截面研究
Ali Safa1,2, Nicolas Medawar2, Georges Abi Tayeh2,3
1Department of Urology, Hôtel-Dieu de France University Hospital, Beirut, Lebanon.
Urologia
|November 20, 2025
概括
精液分析本身可能无法解释男性不孕症. 这项研究没有发现标准精液参数或人口因素与黎巴嫩男性的精子DNA碎片化 (SDF) 之间的联系,强调SDF是独立的因素.
科学领域:
- 生殖医学 生殖医学
- 安德罗学与人类学
- 遗传学 是一个遗传学.
背景情况:
- 男性不孕症是一个日益关注的问题,精液分析是标准的初始诊断工具.
- 精液分析由于变异性而存在局限性,可能无法完全解释生殖功能衰竭.
- 精子DNA碎片化 (SDF) 越来越被认为是不孕症的关键因素.
研究的目的:
- 调查精液参数和人口因素与精子DNA碎片化 (SDF) 率之间的关联.
- 为了澄清传统精液分析结果与黎巴嫩男性的SDF之间的关系.
- 为了确定人口因素是否影响SDF水平.
主要方法:
- 对86名正在接受不孕评估的黎巴嫩男性进行分析.
- 评价标准精液参数,包括pH值,活力,白细胞精子,寡精子,精子和精子.
- 对精子DNA碎片化 (SDF) 率的评估.
主要成果:
- 在异常的精液分析 (寡精子症,精子症,精子症) 和高SDF率之间没有发现统计学意义上的关联.
- 个体精液参数 (pH,活力,白细胞精液) 与增加的SDF没有相关性.
- 人口统计学因素显示,在研究人口中,与SDF水平没有显著的关联.
结论:
- 精液分析参数和人口统计数据不能可靠地预测精子DNA碎片化 (SDF).
- 在男性不孕症的评估中,SDF应被视为一个独立的因素,特别是当标准测试没有确定性时.
- 需要进一步的研究来了解男性不孕症和SDF的多因素原因.
相关概念视频
Infertility in Males
505
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...
505
Sperm Structure and Semen Composition
9.8K
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...
9.8K
Spermatogenesis
121.1K
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...
121.1K


