The effect of pentylenetetrazole-kindling on the extracellular glutamate and taurine levels in the frontal cortex of rats

被引:22
作者
Li, ZQ
Yamamoto, Y
Morimoto, T
Ono, J
Okada, S
Yamatodani, A
机构
[1] Osaka Univ, Fac Med, Sch Allied Hlth Sci, Dept Med Phys, Osaka 5650871, Japan
[2] Osaka Univ, Fac Med, Dept Pediat, Osaka 5650871, Japan
关键词
pentylenetetrazole; kindling; glutamate; microdialysis; seizure; epilepsy;
D O I
10.1016/S0304-3940(00)00838-7
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We studied the extracellular concentration of glutamate and taurine in the frontal cortex of freely-moving pentylenetetrazole (PTZ) kindled rats using an in vivo microdialysis. A significant and sustained increase in the glutamate level was observed in the kindled rats, in contrast, a slight and delayed increase was observed in the non-kindled rats when the same grade seizure was induced by PTZ. The convulsive dose of PTZ administration caused a decrease in taurine levels in the controls, however, no significant changes were found in the kindled rats. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:117 / 119
页数:3
相关论文
共 15 条
[11]   Sensitivity and density of glutamate receptor subtypes in the hippocampal formation are altered in pentylenetetrazole-kindled rats [J].
Schroeder, H ;
Becker, A ;
Hoellt, V .
EXPERIMENTAL BRAIN RESEARCH, 1998, 120 (04) :527-530
[12]   PENTYLENETETRAZOL KINDLING AND FACTORS OF GLUTAMATE TRANSMITTER METABOLISM IN RAT HIPPOCAMPUS [J].
SCHUNZEL, G ;
WOLF, G ;
POMRENKE, U ;
POMRENKE, C ;
SCHMIDT, W .
NEUROSCIENCE, 1992, 49 (02) :365-371
[13]   Co-variation of free amino acids in brain interstitial fluid during pentylenetetrazole-induced convulsive status epilepticus [J].
Sechi, G ;
Rosati, G ;
Deiana, GA ;
Petruzzi, V ;
Deriu, F ;
Correddu, P ;
DeRiu, PL .
BRAIN RESEARCH, 1997, 764 (1-2) :230-236
[14]  
TAMURA H, 1990, EXP BRAIN RES, V80, P447
[15]   SIMULTANEOUS MONITORING OF THE SEIZURE-RELATED CHANGES IN EXTRACELLULAR GLUTAMATE AND GAMMA-AMINOBUTYRIC-ACID CONCENTRATION IN BILATERAL HIPPOCAMPI FOLLOWING DEVELOPMENT OF AMYGDALOID KINDLING [J].
UEDA, Y ;
TSURU, N .
EPILEPSY RESEARCH, 1995, 20 (03) :213-219