从COVID-19中恢复6个月后的精子质量变化:一个回顾性观察性研究
Xiaoli Zhao1,2, Yu Zhao2,3, Nan Jiang1,2
1Department of Reproductive Medicine, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Scientific reports
|October 21, 2025
概括
COVID-19感染暂时影响男性精子质量,降低度和运动能力. 据估计,感染后精子参数的完全恢复需要3-5个月.
科学领域:
- 生殖医学 生殖医学
- 传染性疾病 传染性疾病
- 安德罗学与人类学
背景情况:
- 随着COVID-19大流行,人们对SARS-CoV-2对男性生殖健康,特别是精子质量的潜在不良影响表示担忧.
- 了解COVID-19引起的精子损伤的可逆性和恢复时间表对于评估长期男性生育能力至关重要.
- 以前的研究表明,SARS-CoV-2对精液参数有负面影响,因此需要对恢复模式进行纵向调查.
研究的目的:
- 纵向评估在6个月内感染SARS-CoV-2后男性的精子质量参数的变化.
- 确定COVID-19后的精子度和渐进性运动的恢复时间表.
- 为了评估感染后的生活质量,心理状态和受影响的男性的性功能.
主要方法:
- 感染前精子分析数据的男性患者队列在COVID-19后6个月被跟踪.
- 精子参数 (度,运动性) 在基线和感染后1,2,3,6个月被分析.
- 综合估计方程 (GEE) 和卡普兰-梅尔生存分析用于统计评估重复测量和恢复趋势.
主要成果:
- 与感染前水平相比,感染后1个月观察到精子度和逐渐运动率的显著下降.
- 在2个月和3个月后,观察到精子参数的部分恢复,但在6个月后,水平仍然明显低于基线.
- 预计精子度的中位恢复时间为5个月,逐渐运动的时间为3个月,不依赖年龄.
结论:
- COVID-19感染对男性精子质量产生负面影响,其特点是度和运动率下降.
- 精子质量显示暂时下降,估计感染后3-5个月的恢复期.
- 在感染后的第一个月内,没有观察到心理状况,生活质量或性功能的显著异常.
相关概念视频
Sperm Structure and Semen Composition
10.2K
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...
10.2K
Infertility in Males
522
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...
522
Spermatogenesis
121.7K
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...
121.7K
Sperm Transport
3.1K
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...
3.1K


