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Cocaine is an addictive psychostimulant that induces fos and opioid gene expression by activating the dopamine receptors and the PKA pathways in dopamine D1 and a glutamate NMDA-dependent mechanisms in the striatum. In this study, we show that a single cocaine administration induces ERK phosphorylation in the caudate/putamen of Fischer rats. This increase in Phospho-ERK is diminished by pre-administration...
The pattern of CREB phosphorylation was investigated in the caudate nucleus and hippocampus 10 min or 3 h after i.p. injection of dopamine or NMDA receptor agonists alone, or in combination with antagonists. Ten minutes after C57BL/6 J mice were injected with either the dopamine D1 receptor agonist SKF-38393 hydrobromide or NMDA, immunoreactivity of phosphorylated CREB (pCREB) was significantly increased...
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