王莉;郭靖;韩冰;秦龙娟;杨旭;

• 1:华中师范大学生命科学学院遗传调控和整合生物学湖北省重点实验室

摘要(Abstract)：

邻苯二甲酸二乙基己酯(DEHP)是环境中广泛存在的污染物,作为一种内分泌干扰物,已严重威胁到人类健康和生态环境安全。每天用250、500和1000mg·kg-1·d-1的DEHP对雄性昆明小鼠进行灌胃处理,连续处理30d后,分别考察了小鼠的器官相对质量、丙二醛(MDA)和谷胱甘肽(GSH)的含量以及睾丸组织学等指标的变化。结果显示,小鼠的肝、肺组织肿大,睾丸严重萎缩,并呈剂量依赖性。肝脏MDA含量显著增加,肝脏和血液GSH水平显著下降。从睾丸组织学分析结果可见,精子生长发育条件已受到破坏,例如睾丸细胞坏死和凋亡,生精小管上皮细胞大量脱落等。DEHP对未成熟的雄性小鼠有氧化损伤作用和生殖毒性,特别是在较高剂量(500and1000mg·kg-1·d-1)时。为了探讨大豆异黄酮(SI)对DEHP诱导的氧化损伤和睾丸损伤的保护作用,将暴露于1000mg·kg-1·d-1DEHP的小鼠,用100mg·kg-1·d-1剂量的SI平行处理。结果显示,SI作为抗氧化剂和雌激素调节剂可明显减弱DEHP所致的氧化应激和睾丸毒性。

关键词(KeyWords)： 邻苯二甲酸二乙基己酯(DEHP);氧化损伤;睾丸损伤;黄豆异黄酮;抗氧化剂;雌激素调节

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(51076079)

作者(Authors): 王莉;郭靖;韩冰;秦龙娟;杨旭;

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