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Systemic nicotine enhances burst firing of dopamine neurons in the ventral tegmental area and dopamine release in the nucleus accumbens, mainly via stimulation of nicotinic acetylcholine receptors in the ventral tegmental area. Given that both the neuronal activity of mesolimbic dopamine neurons and terminal dopamine release are regulated by excitatory amino acid inputs to the ventral tegmental area...
The present study describes the effects of local perfusion with ethanol on extracellular dopamine and serotonin (5-hydroxytryptamine, 5-HT) concentrations in the ventral tegmental area. Various concentrations of ethanol in artificial cerebrospinal fluid (ACSF) (0.1-10%, v/v) were administered through a microdialysis probe into the ventral tegmental area of freely moving Sprague-Dawley rats. A significant...
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