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中文摘要

《亚洲男性学杂志》 2008; 10 (6): 865-871

《亚洲男科学杂志》 2008; 10(6): 865-871

【论著】 精子细胞核组蛋白H2B与精子DNA变性和着色能力的关系

Armand Zini, Xiaoyang Zhang, Maria San Gabriel (加拿大)

目的:研究精子DNA损伤与精子细胞核组蛋白H2B着色的关系。方法:精子标本取自14名弱畸精子症的男性不 育患者和6名正常对照,应用精子染色质结构分析法(DNA断裂指数[%DFI]和DNA着色比例[%HDS])评估精子细胞核组蛋白H2B的着色和染色质的完整性。结果:组蛋白H2B的免疫细胞化学显示出局灶染色和弥散染色两种细 胞核着色形式,与正常对照相比不育病人精子组蛋白H2B的平均弥散染色比例较高(分别为7.7%±4.6%和1.6%±1.2%, P<0.01),我们还观察到该百分比与精子DNA断裂指数[%DFI](r=0.63, P<0.01)和DNA着色比例[%HDS](r=0.63, P<0.01)有显著的相关性。结论:本组数据表明男性不育症病人的精子细胞核组蛋白H2B比正常人高度弥散,提示精子DNA损伤原因至少部分是由于组蛋白H2B水平过高所致。

关键词:精子;精子DNA;组蛋白;男性不育;

 
Asian Journal of Andrology CN 31-1795/R ISSN 1008-682X  Copyright © 2023  Shanghai Materia Medica, Chinese Academy of Sciences.  All rights reserved.