精子膜完整性、精子活力与DNA碎片化之间的联系

The Nexus Between Sperm Membrane Integrity, Sperm Motility, and DNA Fragmentation.

作者信息

Góngora Alfredo, Johnston Stephen, Contreras Pablo, López-Fernández Carmen, Gosálvez Jaime

机构信息

Centro de Fertilidad Humana en Mexico DF, Ciudad de México 06760, Mexico.

School of Environment, University of Queensland, Gatton, QLD 4343, Australia.

出版信息

Membranes (Basel). 2025 Apr 2;15(4):109. doi: 10.3390/membranes15040109.

Abstract

This study investigated the interrelationships between sperm plasma membrane integrity, motility, and DNA fragmentation (SDF) to provide a more holistic understanding of male fertility. A total of 1159 ejaculates were analyzed for sperm membrane integrity (% dead spermatozoa), motility (% immotile spermatozoa), and SDF (% sperm with fragmented DNA). The statistical methods included non-parametric correlation analysis and artificial intelligence (AI)-generated cluster analysis to identify patterns based on these three parameters. The results showed a moderate correlation (ρ = 0.65; < 0.000) between sperm membrane integrity and motility, indicating that immotile sperm were more likely to exhibit membrane damage. A weak correlation (ρ = 0.21; < 0.000) suggested that DNA damage was largely independent of the other sperm parameters. Cluster analysis identified three main clusters: Cluster 0: high levels of low membrane integrity, immotile sperm, and moderate DNA fragmentation. Cluster 1: moderate membrane integrity and motility but extremely high DNA fragmentation. Cluster 2: the lowest levels of membrane damage, immotile sperm, and DNA fragmentation, indicating overall better sperm quality. The clustering techniques demonstrated their ability to integrate multiple sperm parameters, enabling a more individualized fertility diagnosis and potentially enhancing male infertility assessments.

摘要

本研究调查了精子质膜完整性、活力和DNA片段化(SDF)之间的相互关系,以更全面地了解男性生育能力。共分析了1159份射精样本的精子膜完整性(死精子百分比)、活力(不动精子百分比)和SDF(DNA片段化精子百分比)。统计方法包括非参数相关分析和基于人工智能(AI)的聚类分析,以根据这三个参数识别模式。结果显示,精子膜完整性与活力之间存在中度相关性(ρ = 0.65;< 0.000),这表明不动精子更有可能表现出膜损伤。弱相关性(ρ = 0.21;< 0.000)表明,DNA损伤在很大程度上独立于其他精子参数。聚类分析确定了三个主要类别:类别0:低膜完整性、不动精子和中度DNA片段化水平较高。类别1:膜完整性和活力中等,但DNA片段化极高。类别2:膜损伤、不动精子和DNA片段化水平最低,表明精子质量总体较好。聚类技术展示了其整合多个精子参数的能力,能够进行更个性化的生育诊断,并有可能加强男性不育评估。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ba9/12028733/ecc6d1411d91/membranes-15-00109-g001.jpg

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