在初级和二级男性不孕症中探索单核酸多态性
Fatina W Dahadhah1, Mohanad Odeh2, Heba A Ali1
1Department of Basic Dental Sciences, Faculty of Dentistry, The Hashemite University, Zarqa 13115, Jordan.
Medical sciences (Basel, Switzerland)
|August 22, 2025
概括
某些线粒体单核酸多态 (SNP) 与男性不孕症有关. 这些遗传变异可能作为不孕症风险的生物标志物,影响精子功能和生存.
科学领域:
- 遗传学
- 生殖医学
- 线粒体生物学
背景情况:
- 男性不孕症影响全球约50%的不孕症患者.
- 主要和次要的男性不孕不育的基因不明.
- 线粒体基因在细胞能量产生和精子功能中起着至关重要的作用.
研究的目的:
- 调查线粒体基因 (MT-ND3,MT-ND4L,MT-ND4) 和男性不孕症之间的关系.
- 区分对初级和二级男性不孕症的遗传贡献.
- 探索男性不孕症风险的潜在遗传生物标志物.
主要方法:
- 桑格测序用于分析68名不孕男性中SNP的基因型分布.
- 这项研究包括49名患有初级不孕症的男性和19名患有二次不孕症的男性.
- 进行了统计分析,以确定SNP与不孕症类型之间的显著相关性.
主要成果:
- 在MT-ND4和MT-ND4L基因中的特定SNP与男性初级不孕症有显著的关联.
- 在ND4基因中的SNPrs2857285和ND4L基因中的rs28358279在初级不孕症病例中与TT基因型显著相关.
- 在ND4基因中观察到SNP rs869096886与生殖时间的边界相关性.
结论:
- 特定研究的线粒体基因变异可能通过影响精子存活和功能导致男性不孕.
- 这些线粒体SNP可以作为评估男性不孕症风险的潜在生物标志物.
- 建议对更大的群体和功能性研究进行进一步的研究,以验证这些发现,并探索遗传和环境因素的结合.
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