Journal
JOURNAL OF NEUROCHEMISTRY
Volume 87, Issue 2, Pages 273-289Publisher
WILEY
DOI: 10.1046/j.1471-4159.2003.02050.x
Keywords
amphetamine; cocaine; D2 receptor; dopamine; dopamine transporter; release; uptake
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The development of electrochemical recordings with small carbon-fiber electrodes has significantly advanced the understanding of the regulation of catecholamine transmission in various brain areas. Recordings in vivo or in slice preparations monitor diffusion of catecholamine following stimulated synaptic release into the surrounding tissue. This synaptic 'overflow' is defined by the amount of release, by the activity of reuptake, and by the diffusion parameters in brain tissue. Such studies have elucidated the complex regulation of catecholamine release and uptake, and how psychostimulants and anti-psychotic drugs interfere with it. Moreover, recordings with carbon-fiber electrodes from cultured neurons have provided analysis of catecholamine release and its plasticity at the quantal level.
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