氯离子对鲫鱼Mauthner细胞胞内皮肤反应的影响

首都医科大学学报 ›› 2004, Vol. 25 ›› Issue (3): 286-289.

氯离子对鲫鱼Mauthner细胞胞内皮肤反应的影响

张丽娟, 童学红, 李效义

首都医科大学生理学教研室

收稿日期:2003-11-12 修回日期:1900-01-01 出版日期:2004-07-15 发布日期:2004-07-15

Effect of Chloridion on Intracellular Potential in Crucian Carps' Mauthner Cell Evoked by Skin Stimulation

Zhang Lijuan, Tong Xuehong, Li Xiaoyi

Department of Physiology, Capital University of Medical Sciences

Received:2003-11-12 Revised:1900-01-01 Online:2004-07-15 Published:2004-07-15

摘要/Abstract

摘要： 用微电极穿刺技术记录电刺激皮肤时M细胞胞体内产生的突触后电位,并通过微电泳技术向胞体内注射氯离子,观察氯离子对胞内皮肤反应的影响.结果表明:胞内皮肤反应具有频率和强度的依赖性,同时具有氯离子浓度依赖性.提示:从皮肤到M细胞的通路由多突触通路组成,其中既有电突触,又有化学性突触.而且从皮肤到M细胞的通路中既有兴奋性成分,又含有抑制性的成分.

关键词: Mauthner细胞, 鲫鱼, 氯离子, 突触后电位

Abstract: In the present experiment, microelectrode was used to explore the physiological properties of the Mauthner cell with the stimuli of the skin.Direct stimulation of the skin evoked postsynaptic potentials (PSPs), which were stimulus strength-and frequency-dependent within some limits.The intracellular skin responses could be increased by passing hyperpolarizing currents to the M-cell through the Cl^- filled electrode.The results suggest that the afferent pathways from skin to M-cells contain both excited and inhibitory compotents, which interact each other and modulate the excitability of the M-cells together.

Key words: Mauthner cell, crucian carp, Cl^-, postsynaptic potentials

中图分类号:

Q426

张丽娟;童学红;李效义. 氯离子对鲫鱼Mauthner细胞胞内皮肤反应的影响[J]. 首都医科大学学报, 2004, 25(3): 286-289.

Zhang Lijuan;Tong Xuehong;Li Xiaoyi. Effect of Chloridion on Intracellular Potential in Crucian Carps' Mauthner Cell Evoked by Skin Stimulation[J]. Journal of Capital Medical University, 2004, 25(3): 286-289.

[1]	胡正娟;张丽娟;童学红;虞棻;李效义. M细胞腹侧树突内复合性突触后电位的抑制性成分[J]. 首都医科大学学报, 2007, 28(3): 363-366.
[2]	黄海霞;刘丽敏;谢燕;虞棻;张茂先. 肌注士的宁对刺激迷走神经诱发的M细胞胞内反应的影响[J]. 首都医科大学学报, 2003, 24(2): 97-99.
[3]	李效义;童学红;张淑华;陈哲;高娜;虞棻;张茂先;张英才. 视被盖兴奋性输入在Mauthner细胞腹侧树突上的分布[J]. 首都医科大学学报, 2000, 21(1): 1-4.
[4]	高娜;童学红;张淑华;李效义;虞穿;张茂先;张英才. Mauthner细胞脊髓EPSP前电位在外侧树突上的分布[J]. 首都医科大学学报, 1999, 20(1): 1-4.
[5]	张英才;李效义;童学红;张淑华;高娜;虞棻;张茂先. Mauthner细胞脊髓EPSP前电位在腹侧树突上的分布[J]. 首都医科大学学报, 1998, 19(4): 305-308.
[6]	张英才;张淑华;虞棻;童学红;李效义;张茂先. 嗅神经兴奋性输入在鲫鱼Mauthner细胞上的定位[J]. 首都医科大学学报, 1997, 18(4): 301-304.
[7]	张淑华;张英才;童学红;李效义;张茂先. M细胞脊髓EPSP前电位的生理特性[J]. 首都医科大学学报, 1997, 18(3): 202-204.
[8]	张茂先;虞棻;张淑华;李效义;童学红;张英才. Mauthner细胞脊髓EPSP前电位起源分析[J]. 首都医科大学学报, 1997, 18(2): 101-104.
[9]	张茂先;虞棻;张淑华;杨海萍. 鲫鱼迷叶与Mauthner细胞关系的电生理研究[J]. 首都医科大学学报, 1995, 16(3): 176-179.
[10]	刘学宗;郭德成;童隆正;张英才;张淑华. 兴奋性突触后电位沿树突传输的定量分析方法[J]. 首都医科大学学报, 1992, 13(3): 181-185.
[11]	张英才;张淑华. 刺激嗅神经诱发的鲫鱼Mauthner细胞兴奋性突触后电位[J]. 首都医科大学学报, 1992, 13(2): 105-109.