Effects of Microcystis on Hypothalamic-Pituitary-Gonadal-Liver Axis in Nile Tilapia (Oreochromis niloticus)
文献类型： 外文期刊
作者： Chen, Jiazhang 1 ; Meng, Shunlong 1 ; Xu, Hai 3 ; Zhang, Zhen 3 ; Wu, Xiangyang 3 ;
作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Wuxi 214081, Peoples R China
2.CAFS, Key Lab Fishery Eco Environm Assessment & Resourc, Wuxi 214081, Peoples R China
3.Jiangsu Univ, Sch Environm & Safety Engn, Zhenjiang 212013, Peoples R China
关键词： Microcystis; MC-LR; Brain; Hypothalamus-pituitary-gonadal-liver axis; Nile tilapia
期刊名称：BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY （ 影响因子：2.151； 五年影响因子：2.129 ）
ISSN： 0007-4861
年卷期： 2017 年 98 卷 4 期
页码：
收录情况： SCI
摘要： In the present study, Nile tilapia (Oreochromis niloticus) were used to assess the endocrine disruption potential of Microcytis aeruginosa. Male Nile tilapia were exposed to lyophilized M. aeruginosa or purified microcystin-LR (8.3 mu g/L) for 28 days. The levels of serum hormones (17 beta-estradiol and testosterone) and transcripts of selected genes in the hypothalamus-pituitary-gonadal-liver axis were analyzed. The results showed that serum hormones were significantly up-regulated, and transcripts of 13 genes (GHRH, PACAP, GH, GHR1, GHR2, IGF1, IGF2, CYP19a, CYP19b, 3 beta-HSD1, 20 beta-HSD, 17 beta-HSD1 and 17 beta-HSD8) were significantly altered after Microcytis exposure. These results indicate that fish reproduction can be altered in a Microcystis bloom-contaminated aquatic environment.
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