Journal
NEUROSCIENCE RESEARCH
Volume 67, Issue 4, Pages 347-353Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neures.2010.04.005
Keywords
GABA; GAD; Cerebellum; Ganglionic eminence; GAD67-GFP knock-in; Ambient GABA
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GABA plays an important role in inhibitory neurotransmission. In the developing brain, GABA also acts as a paracrine chemical mediator. To evaluate the ambient GABA gradients in the brain, an enzyme-linked imaging system that consisted of GABase and NADP(+) was developed. In rat cerebellar slices, GABA release was observed in the layers containing GABAergic neurons. In telencephalic slices from embryonic GAD67-GFP knock-in mice, ambient GABA levels were high in the ganglionic eminence, where GABA cells are generated, but missing in homozygotes. This study indicates that this method will be useful to study the topography and dynamics of ambient GABA concentrations. (C) 2010 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.
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