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学科主题: Marine & Freshwater Biology; Toxicology
题名: Waterborne exposure to fluorotelomer alcohol 6:2 FTOH alters plasma sex hormone and gene transcription in the hypothalamic-pituitary-gonadal (HPG) axis of zebrafish
作者: Liu, Chunsheng1, 2; Yu, Liqin1; Deng, Jun1; Lam, Paul K. S.3; Wu, Rudolf S. S.3; Zhou, Bingsheng1
通讯作者: Zhou, BS, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
关键词: Fluorotelomer alcohols ; Hypothalamic-pituitary-gonadal (HPG) axis ; Gene transcription ; Sex hormone ; Endocrine disruption
刊名: AQUATIC TOXICOLOGY
发表日期: 2009-06-28
DOI: 10.1016/j.aquatox.2009.04.005
卷: 93, 期:2-3, 页:131-137
收录类别: SCI
文章类型: Article
部门归属: [Liu, Chunsheng; Yu, Liqin; Deng, Jun; Zhou, Bingsheng] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Liu, Chunsheng] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; [Lam, Paul K. S.; Wu, Rudolf S. S.] City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Nature Science Foundation of China [20890113, 20877094]; State Key Laboratory of Freshwater Ecology and Biotechnology [2008FBZ10]
类目[WOS]: Marine & Freshwater Biology ; Toxicology
研究领域[WOS]: Marine & Freshwater Biology ; Toxicology
摘要: Fluorotelomer alcohols (FTOHs) have shown estrogenic activity in vitro and in vivo, but the mechanism of this activity is not known. In this study, 18-week-old zebrafish (Danio rerio) were exposed to 0, 0.03, 0.3 and 3.0 mg/l 1H, 1H, 2H, 2H-perfluorooctan-1-ol (6:2 ETCH) for 7 days, and the effects on plasma sex hormone levels were measured followed by use of real-time PCR to examine selected gene expression in hypothalamic-pituitary-gonadal (HPG) axis and liver. Exposure to 6:2 FTOH significantly increased plasma estradiol (E2) and testosterone (T) levels in both males and females. Furthermore, the ratio of T/E2 was reduced in females while increased in males. In females, the increase of E2 was accompanied by up-regulated hepatic estrogenic receptor alpha (ER alpha) and vitellogenin (VTG1 and VTG3) expression. In males, the elevation of the T level is consistent with the up-regulation of cytochrome P450 c17 alpha-hydroxylase, 17, 20-lase (CYP17) and the down-regulation of cytochrome P450 aromatase A (CYP19A). The present study demonstrated that waterborne exposure to 6:2 FTOH alter plasma sex hormone levels and the ratio of T/E2, as well as the transcriptional profiles of some genes in the HPG axis and liver. The results suggested that FTOHs may disturb fish reproduction through endocrine disrupted activity. (C) 2009 Elsevier B.V. All rights reserved.
英文摘要: Fluorotelomer alcohols (FTOHs) have shown estrogenic activity in vitro and in vivo, but the mechanism of this activity is not known. In this study, 18-week-old zebrafish (Danio rerio) were exposed to 0, 0.03, 0.3 and 3.0 mg/l 1H, 1H, 2H, 2H-perfluorooctan-1-ol (6:2 ETCH) for 7 days, and the effects on plasma sex hormone levels were measured followed by use of real-time PCR to examine selected gene expression in hypothalamic-pituitary-gonadal (HPG) axis and liver. Exposure to 6:2 FTOH significantly increased plasma estradiol (E2) and testosterone (T) levels in both males and females. Furthermore, the ratio of T/E2 was reduced in females while increased in males. In females, the increase of E2 was accompanied by up-regulated hepatic estrogenic receptor alpha (ER alpha) and vitellogenin (VTG1 and VTG3) expression. In males, the elevation of the T level is consistent with the up-regulation of cytochrome P450 c17 alpha-hydroxylase, 17, 20-lase (CYP17) and the down-regulation of cytochrome P450 aromatase A (CYP19A). The present study demonstrated that waterborne exposure to 6:2 FTOH alter plasma sex hormone levels and the ratio of T/E2, as well as the transcriptional profiles of some genes in the HPG axis and liver. The results suggested that FTOHs may disturb fish reproduction through endocrine disrupted activity. (C) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: CARP CYPRINUS-CARPIO ; ESTROGEN-RECEPTOR ; DANIO-RERIO ; PERFLUORINATED CHEMICALS ; VITELLOGENIN INDUCTION ; GOLDFISH PITUITARY ; FATHEAD MINNOW ; PCR ARRAY ; EXPRESSION ; GONADOTROPIN
语种: 英语
WOS记录号: WOS:000268412600006
ISSN号: 0166-445X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7646
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China

Recommended Citation:
Liu, Chunsheng; Yu, Liqin; Deng, Jun; Lam, Paul K. S.; Wu, Rudolf S. S.; Zhou, Bingsheng.Waterborne exposure to fluorotelomer alcohol 6:2 FTOH alters plasma sex hormone and gene transcription in the hypothalamic-pituitary-gonadal (HPG) axis of zebrafish,AQUATIC TOXICOLOGY,2009,93(2-3):131-137
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