中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Changes in Synaptic Transmission, Calcium Current, and Neurite Growth by Perfluorinated Compounds Are Dependent on the Chain Length and Functional Group

文献类型:期刊论文

作者Liao, Chunyang ; Wang, Thanh ; Cui, Lin ; Zhou, Qunfang ; Duan, Shumin ; Jiang, Guibin
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2009-03-15
卷号43期号:6页码:2099-2104
中文摘要Scientific and public concerns on perfluorinated compounds (PFCs) are increasingly growing because of their environmental persistency, bioaccumulation, and extensive distribution throughout the world. Little is known about the effects of PFCs on neural function and the underlying mechanisms. Recent evidence suggests that the toxicological effects of PFCs are closely correlated with their carbon chain lengths. In this present work, the actions of PFCs with varying chain length on cultured rat hippocampal neurons and possible action patterns were examined. Increases in the frequencies of spontaneous miniature postsynaptic current (mPSC) were commonly found in cultured neurons when perfused with PFCs. The increase of mPSC frequency was in proportion to the carbon chain length, and the potency of perfluorinated carboxylates was less pronounced than that of perfluorinated sulfonates. A comparable but less perceptible trend was also found for the amplitudes of voltage-dependent calcium current (I-ca). No regular change in pattern was observed for the effects of PFCs on activation and inactivation kinetics of I-Ca. Furthermore, prolonged treatment of PFCs inhibited the neurite growth of neurons to various degrees. Comparisons between nonfluorinated and perfluorinated analogues demonstrated that the fluorination in alkyl chain exerts stronger actions on neurons as compared to the surfactant activity. This study shows that PFCs exhibit adverse effects on cultured neurons to various extents, which is dependent on the carbon chain length and functional group attached to the fully fluorinated alkyl chain.
WOS记录号WOS:000264108800071
源URL[http://ir.rcees.ac.cn/handle/311016/21466]  
专题生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式
GB/T 7714
Liao, Chunyang,Wang, Thanh,Cui, Lin,et al. Changes in Synaptic Transmission, Calcium Current, and Neurite Growth by Perfluorinated Compounds Are Dependent on the Chain Length and Functional Group[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2009,43(6):2099-2104.
APA Liao, Chunyang,Wang, Thanh,Cui, Lin,Zhou, Qunfang,Duan, Shumin,&Jiang, Guibin.(2009).Changes in Synaptic Transmission, Calcium Current, and Neurite Growth by Perfluorinated Compounds Are Dependent on the Chain Length and Functional Group.ENVIRONMENTAL SCIENCE & TECHNOLOGY,43(6),2099-2104.
MLA Liao, Chunyang,et al."Changes in Synaptic Transmission, Calcium Current, and Neurite Growth by Perfluorinated Compounds Are Dependent on the Chain Length and Functional Group".ENVIRONMENTAL SCIENCE & TECHNOLOGY 43.6(2009):2099-2104.

入库方式: OAI收割

来源:生态环境研究中心

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