Dopamine-adenosine interactions in the striatum and the globus pallidus: inhibition of striatopallidal neurons through either D2 or A2A receptors enhances D1 receptor-mediated effects on c-fos expression.

Abstract excerpt

D1 receptors located on striatonigral neurons and D2 receptors located, together with A2A receptors, on striatopallidal neurons are known to interact functionally. Using in situ hybridization, we examined the effects of D1 and D2 agonists and of an A2A antagonist on c-fos mRNA in identified striatal neurons and in globus pallidus. The full D1 agonist, SKF 82958 (1 mg/kg), induced a homogenous increase of c-fos...

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