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Chronic Exposure to Diquat Causes Reproductive Toxicity in Female Mice

文献类型： 外文期刊

作者： Zhang, Jia-Qing 1 ; Gao, Bin-Wen 1 ; Wang, Jing 1 ; Wang, Xian-Wei 2 ; Ren, Qiao-Ling 1 ; Chen, Jun-Feng 1 ; Ma, Qiang 1 ;

作者机构： 1.Henan Acad Agr Sci, Inst Anim Husb & Vet Sci, Zhengzhou, Peoples R China

2.Henan Prov Anim Husb Gen Stn, Zhengzhou, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2016 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Diquat is a bipyridyl herbicide that has been widely used as a model chemical for in vivo studies of oxidative stress due to its generation of superoxide anions, and cytotoxic effects. There is little information regarding the toxic effects of diquat on the female reproductive system, particularly ovarian function. Thus, we investigated the reproductive toxic effects of diquat on female mice. Chronic exposure to diquat reduced ovary weights, induced ovarian oxidative stress, resulted in granulosa cell apoptosis, and disrupted oocyte developmental competence, as shown by reactive oxygen species (ROS) accumulation, decreased polar body extrusion rates and increased apoptosis-related genes expression. Additionally, after diquat treatment, the numbers of fetal mice and litter sizes were significantly reduced compared to those of control mice. Thus, our results indicated that chronic exposure to diquat induced reproductive toxicity in female mice by promoting the ROS production of gruanousa cells and ooctyes, impairing follicle development, inducing apoptosis, and reducing oocyte quality. In conclusion, our findings indicate that diquat can be used as a potent and efficient chemical for in vivo studies of female reproductive toxicity induced by oxidative stress. Moreover, the findings from this study will further enlarge imitative research investigating the effect of ovarian damage induced by oxidative stress on reproductive performance and possible mechanisms of action in large domestic animals.

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