中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Hyper-excitability in low threshold mechanical a fibers is potentially involved in scorpion bmk sting pain

文献类型:期刊论文

作者Liu, Ying2; Bai, Zhan-Tao2; Feng, Xing-Hua2; Li, Wen-Peng1; Yang, Hong-Tian1; Zhou, Jing-Jing1; Ji, Yong-Hua1
刊名Brain research bulletin
出版日期2009-09-28
卷号80期号:3页码:116-121
关键词Low threshold mechanical a fiber Bmk i Single fiber recording Burst discharges Bmk scorpion sting pain
ISSN号0361-9230
DOI10.1016/j.brainresbull.2009.04.007
通讯作者Ji, yong-hua(yhji@staff.shu.edu.cn)
英文摘要In the present study, using the single fiber recording technique, we found that bmk i, the main toxic component in scorpion buthus martensi karsch (bmk) venom, induced dramatic increase in excitability of rapidly adapting (ra) and type i slowly adapting (sai) low threshold mechanical a fibers of rat. five micrograms bmk 1 (691 nmol, in 10 mu l saline) administrated to the receptive fields induced spontaneous activity in 80% of ra and sai fibers, increased the response to 10 g-10 s stimulation at about 20 times and altered the firing pattern to burst mode with maximal ns (number of spikes in burst) averaging from all fibers studied as many as 59. the increase in the excitability of ra and sai fibers did not recover completely in 2 h. our finding suggests that the gigantic abnormal activity in low threshold mechanical a fibers is involved in bmk scorpion sting pain, and the experimental model of bmk scorpion sting pain can be used to study a-fiber related central pathway which is important for relief of refractory neuropathic pain likewise. (c) 2009 published by elsevier inc.
WOS关键词DORSAL-ROOT GANGLION ; RAT SPINAL-CORD ; NEUROPATHIC PAIN ; SODIUM-CHANNELS ; NEURONS ; INJURY ; SUPPRESSION ; NEUROTOXIN ; RECEPTOR
WOS研究方向Neurosciences & Neurology
WOS类目Neurosciences
语种英语
WOS记录号WOS:000270259300004
出版者PERGAMON-ELSEVIER SCIENCE LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2401018
专题中国科学院大学
通讯作者Ji, Yong-Hua
作者单位1.Shanghai Univ, Lab Neuropharmacol & Neurotoxicol, Shanghai 200444, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Biol Sci, Grad Sch, Shanghai 200031, Peoples R China
推荐引用方式
GB/T 7714
Liu, Ying,Bai, Zhan-Tao,Feng, Xing-Hua,et al. Hyper-excitability in low threshold mechanical a fibers is potentially involved in scorpion bmk sting pain[J]. Brain research bulletin,2009,80(3):116-121.
APA Liu, Ying.,Bai, Zhan-Tao.,Feng, Xing-Hua.,Li, Wen-Peng.,Yang, Hong-Tian.,...&Ji, Yong-Hua.(2009).Hyper-excitability in low threshold mechanical a fibers is potentially involved in scorpion bmk sting pain.Brain research bulletin,80(3),116-121.
MLA Liu, Ying,et al."Hyper-excitability in low threshold mechanical a fibers is potentially involved in scorpion bmk sting pain".Brain research bulletin 80.3(2009):116-121.

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来源:中国科学院大学

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