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题名: THE DEVELOPMENTAL NEUROTOXICITY OF POLYBROMINATED DIPHENYL ETHERS: EFFECT OF DE-71 ON DOPAMINE IN ZEBRAFISH LARVAE
作者: Wang, Xianfeng1, 2; Yang, Lihua1; Wu, Yuanyuan3; Huang, Changjiang3; Wang, Qiangwei1, 2; Han, Jian1, 2; Guo, Yongyong1; Shi, Xiongjie1; Zhou, Bingsheng1
通讯作者: Zhou, BS (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China.
关键词: Polybrominated diphenyl ethers (PBDEs) ; Neurotransmitter ; Dopaminergic neuron ; Developing neurotoxicity ; Zebrafish larvae
刊名: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
发表日期: 2015-05-01
DOI: 10.1002/etc.2906
卷: 34, 期:5, 页:1119-1126
收录类别: SCI
文章类型: Article
部门归属: [Wang, Xianfeng ; Yang, Lihua ; Wang, Qiangwei ; Han, Jian ; Guo, Yongyong ; Shi, Xiongjie ; Zhou, Bingsheng] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China ; [Wang, Xianfeng ; Wang, Qiangwei ; Han, Jian] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Wu, Yuanyuan ; Huang, Changjiang] Wenzhou Med Univ, Inst Watershed Sci & Environm Ecol, Wenzhou, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences ; Toxicology
研究领域[WOS]: Environmental Sciences & Ecology ; Toxicology
英文摘要: The potential neurotoxicity of polybrominated diphenyl ethers (PBDEs) is still a great concern. In the present study, the authors investigated whether exposure to PBDEs could affect the neurotransmitter system and cause developmental neurotoxicity in zebrafish. Zebrafish embryos (2h postfertilization) were exposed to different concentrations of the PBDE mixture DE-71(0-100g/L). The larvae were harvested at 120h postfertilization, and the impact on dopaminergic signaling was investigated. The results revealed significant reductions in content of whole-body dopamine and its metabolite, dihydroxyphenylacetic acid, in DE-71-exposed larvae. The transcription of genes involved in the development of dopaminergic neurons (e.g., manf, bdnf, and nr4a2b) was significantly downregulated upon exposure to DE-71. Also, DE-71 resulted in a significant decrease of tyrosine hydroxylase and dopamine transporter protein levels in dopaminergic neurons. The expression level of tyrosine hydroxylase in forebrain neurons was assessed by whole-mount immunofluorescence, and the results further demonstrated that the tyrosine hydroxylase protein expression level was reduced in dopaminergic neurons. In addition to these molecular changes, the authors observed reduced locomotor activity in DE-71-exposed larvae. Taken together, the results of the present study demonstrate that acute exposure to PBDEs can affect dopaminergic signaling by disrupting the synthesis and transportation of dopamine in zebrafish, thereby disrupting normal neurodevelopment. In accord with its experimental findings, the present study extends knowledge of the mechanisms governing PBDE-induced developmental neurotoxicity. Environ Toxicol Chem 2015;34:1119-1126. (c) 2015 SETAC
关键词[WOS]: POLYCHLORINATED-BIPHENYLS ; TYROSINE-HYDROXYLASE ; NEONATAL EXPOSURE ; BRAIN ; RATS ; TRANSPORTER ; EXPRESSION ; SYSTEMS ; SYNAPTOSOMES ; LOCOMOTION
语种: 英语
WOS记录号: WOS:000353412800025
ISSN号: 0730-7268
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23941
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Wenzhou Med Univ, Inst Watershed Sci & Environm Ecol, Wenzhou, Peoples R China
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