精液等离子体金属混合物与精液质量之间的关联:一种代谢组介导的病例控制研究
Shujie Zhao1, Wenrui Lu2, Guanxiang Yuan3
1Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Shenzhen Key Laboratory of Modern Toxicology, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, 8 Longyuan Rd, Shenzhen, Guangdong 518055, China.
Ecotoxicology and environmental safety
|May 4, 2025
概括
精液中的金属混合物增加了异常精液质量 (ASQ) 的风险. 铜 (Cu) 增加ASQ风险,而铁 (Fe) 和 (Se) 则表现出通过特定代谢物介导的保护作用.
科学领域:
- 环境健康 环境健康
- 生殖毒理学 生殖毒理学
- 代谢学 代谢学 代谢学
背景情况:
- 暴露于金属是与男性不孕症相关的全球性问题.
- 了解污染物与生物系统的相互作用对于生殖健康至关重要.
研究的目的:
- 研究多金属暴露,精液等离子体代谢物和异常精液质量 (ASQ) 之间的关系.
- 确定介导这些关联的特定代谢物.
主要方法:
- 在522名男性的匹配病例控制研究中.
- 对265种精液等离子体代谢物进行非向的代谢分析.
- 使用后勤回归,量子差距累积 (QG-C),加权量子和 (WQS) 和贝叶斯内核机器回归 (BKMR) 的分析.
主要成果:
- 金属混合物总体上增加了ASQ风险.
- 精子中的铜 (Cu) 显著增加了ASQ风险.
- 铁 (Fe) 和 (Se) 显示出保护性的趋势.
- 确定了74种差异性代谢物,其中特定的代谢物介导金属-ASQ关联.
结论:
- 精液等离子金属通过特定代谢物通路破坏男性生育能力.
- 铜驱动损坏,而铁和提供保护.
- 确定了男性生殖健康的候选生物标志物和可信的干预途径.
相关概念视频
Sperm Structure and Semen Composition
737
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...
737
Spermatogenesis
101.8K
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...
101.8K


