精子甲基化是否会随着生育状态和年龄而改变? 一个系统审查和元回归分析分析
Claudia Leanza1, Rossella Cannarella1,2, Federica Barbagallo1
1Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy.
Biomedicines
|February 24, 2024
概括
精子甲基化小核核糖核蛋白多N (SNRPN) 基因在不孕男性中较高. 这种SNRPN基因甲基化随着不育患者的年龄增长而增加,这可能解释了与年龄相关的精子质量下降.
科学领域:
- 生殖生物学 生殖生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 遗传学 遗传学是一种遗传学.
背景情况:
- 小核 рибо核蛋白聚酸N (SNRPN) 基因是一种父性表达的印记基因.
- 异常的SNRPN甲基化与辅助生殖技术 (ART) 综合征和异常的精子参数有关.
- 以前的研究表明,不育男性的精子中SNRPN甲基化水平较高.
研究的目的:
- 进行全面的系统综述和SNRPN基因甲基化SNRPN基因甲基化在不孕男性的精子.
- 使用元回归分析研究年龄和精子度对SNRPN甲基化的影响.
主要方法:
- 按照PRISMA-P和MOOSE指南进行系统审查和元分析.
- 包括比较SNRPN基因甲基化水平在不孕不育/异常精子参数患者的精子中的研究与生育/正常精子男性的研究.
- 超回归分析以评估年龄和精子度的影响.
主要成果:
- 六项研究被纳入了定量综合,揭示了在不育患者中显著更高的SNRPN甲基化.
- 研究之间观察到显著的异质性,但敏感性分析和埃格尔的测试表明稳定性和没有出版偏差.
- 超回归表明SNRPN甲基化在整体和对照组中独立于年龄和精子度,但在患者组中发现与年龄的直接相关性.
结论:
- 生育状况和精子参数与改变的SNRPN基因甲基化模式有关,不育男性的水平更高.
- 在不育的患者中,年龄的增加与较高的SNRPN甲基化相关,这表明与年龄相关的精子质量下降和ART风险的机制.
- 结果支持包括SNRPN甲基化在ART对夫妇评估的遗传小组.
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