Neurochemical actions of gabapentin in mouse brain

被引：46

作者：

Leach, JP ^{[1
]}

Sills, GJ ^{[1
]}

Butler, E ^{[1
]}

Forrest, G ^{[1
]}

Thompson, GG ^{[1
]}

Brodie, MJ ^{[1
]}

机构：

[1] UNIV GLASGOW, WESTERN INFIRM, DEPT MED & THERAPEUT, EPILEPSY UNIT, GLASGOW G11 6NT, LANARK, SCOTLAND

来源：

EPILEPSY RESEARCH | 1997年 / 27卷 / 03期

关键词：

gabapentin; GABA; glutamate; glutamine; GABA-T; GAD; chronic treatment antiepileptic drugs; epilepsy;

D O I：

10.1016/S0920-1211(97)01034-6

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Gabapentin (GBP) is a recently licenced antiepileptic drug whose mode of action remains to be fully elucidated. The following studies were designed to investigate the effects of GBP on several gamma-aminobutyric acid (GABA) related neurochemical parameters in mouse brain. GBP (0-75 mg/kg) was administered by intraperitoneal injection either as a single dose or twice daily for 8 days. Animals were sacrificed 4 h after the final administration and their brains removed and analysed for concentrations of GABA, glutamate and glutamine and the activities of GABA-transaminase (GABA-T) and glutamic acid decarboxylase (GAD). Single dose GBP increased brain GABA-T activity and glutamine concentration but was without effect on GAD activity or the concentrations of GABA and glutamate. Following repeated treatment with GBP, brain GABA-T activity was consistently decreased and there was also a decrease in brain glutamate concentration. Repeated drug treatment was without effect on the activity of GAD or on the concentrations of GABA and glutamine. These results suggest that GBP has effects on the GABAergic system which may contribute to its antiepileptic and/or neuroprotective actions. (C) 1997 Elsevier Science B.V.

引用

页码：175 / 180

页数：6

共 22 条

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