畜牧兽医学报 ›› 2017, Vol. 48 ›› Issue (2): 351-358.doi: 10.11843/j.issn.0366-6964.2017.02.019

• 基础兽医 • 上一篇    下一篇

叶酸对炔雌醚致雄性大鼠生殖损伤的保护作用研究

李健1,陈福宁2,陈耀星3,王子旭3,董玉兰3,曹静3,司丽芳1,刘志军1,赵战勤1*   

  1. (1.河南科技大学动物科技学院,洛阳471023;2.北京昌平区中西医结合医院,北京102208;3.中国农业大学动物医学院,北京100193)
  • 收稿日期:2016-08-11 出版日期:2017-02-23 发布日期:2017-02-23
  • 通讯作者: 赵战勤,博士,副教授,Tel:0379-64282341,E-mail:zhaozhanqin@126.com
  • 作者简介:李健(1980-),男,安徽亳州人,博士,副教授,主要从事生殖毒理学、动物解剖学与组织胚胎学教学与研究,E-mail:lijian800702@126.com
  • 基金资助:

    国家自然科学基金项目(U1404325;31302106);河南省教育厅高等学校重点科研项目基础研究计划(16A230004);河南科技大学青年科学基金项目(2015QN032);河南科技大学高级别科研项目培育基金(序号4);河南省自然科学基金项目(162300410081)

The Study of Protection of Folacin against Quinestrol Induced Reproductive Toxicity in Male Rat

LI Jian1, CHEN Fu-ning2, CHEN Yao-xing3, WANG Zi-xu3, DONG Yu-lan3, CAO Jing3,SI Li-fang1,LIU Zhi-jun1,ZHAO Zhan-qin1*   

  1. (1.College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China; 2.Changping Hospital of Integrated Chinese and Western Medicine, Beijing 102208, China 3. College of Veterinary Medicine, China Agricultural University, Beijing 100193, China)
  • Received:2016-08-11 Online:2017-02-23 Published:2017-02-23

摘要:

旨在探讨叶酸对炔雌醚致雄性大鼠生殖损伤的保护作用。将20只8周龄成年雄性SD大鼠适应饲养1周后,随机分为4组。对照组:橄榄油+生理盐水;炔雌醚组:1.0 mg•kg-1炔雌醚;炔雌醚+叶酸组:1.0 mg•kg-1炔雌醚+1.1 mg•kg-1叶酸;叶酸组:1.1 mg•kg-1叶酸;灌胃处理,每天一次,连续2周。处理结束后,取生殖器官称重,检测精子质量,测定睾丸抗氧化功能,制作睾丸组织切片,观察睾丸组织结构,通过免疫组织化学染色检测Caspase-3与eNOS表达。结果显示,炔雌醚单独处理组造成大鼠生殖器官萎缩,重量下降,精子发生异常,精子质量下降,抗氧化酶活性下降,睾丸发生氧化应激;与之相反,凋亡效应酶Caspase-3与eNOS表达增加。炔雌醚+叶酸处理组通过减少eNOS表达降低氧化应激,抑制Caspase-3表达,降低精子畸形率、生精小管损伤,最终改善雄性大鼠生殖功能。与对照组相比,单独叶酸处理组睾丸抗氧化酶活性、组织结构和精子质量均有一定程度提高,无显著差异。本研究首次证实叶酸有效地抑制了炔雌醚对雄性大鼠生殖功能的破坏作用。

Abstract:

The study was conducted to investigate the effects of folacin on quinestrol induced abberant reproduction in adult male rat. Twenty 8-week-old adult male SD rats were randomly divided into 4 groups after 1-week of adaptive feeding. Control group: olive oil + physiological saline; Quinestrol group: 1.0 mg•kg-1 quinestrol; Quinestrol + folacin group: 1.0 mg•kg-1 quinestrol + 1.1 mg•kg-1 folacin (dissolved in saline); Folacin group: 1.1 mg•kg-1 folacin. Quinestrol and folacin were given intragastric administration to male rats daily for 2 weeks. After the treatments, the sexual organs were weighed, semen quality were tested, antioxidant status of testes were investigated, testis tissue section were made, histopathology of testes were observed, the expressions of Caspase-3 and endothelial nitric oxide synthase (eNOS) were detected by immunohistochemical staining. The results showed that atrophy of sexual organs were induced, the weights of sexual organs were decreased, abnormal spermatogenesis were abberant, sperm quality were reduced, antioxidant enzyme activity were decreased, oxidative stress were happend in testes after the treatment of quinestrol alone. By contrast, the expressions of Caspase-3 and eNOS in the testes were increased. In the group of quinestrol and folacin treatment, oxidative stress were reduced by decreasing eNOS expression, the expression of Caspase-3 were inhibited, the sperm deformity rate and the damage of the tubule were reduced, the reproductive function of male rats were improved significantly. Compared with the control group, the testicular antioxidant enzyme activities, tissue structure and sperm quality were ameliorated to some extent in the folacin treatment group, there was no significant difference. The results clearly demonstrate for the first time that folacin effectively inhibited the damaging effects of quinestrol on reproductive function in adult male rats.

中图分类号: