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  • Title: Stimulation of D2-dopamine receptors in rat neostriatum inhibits the release of acetylcholine and dopamine but does not affect the release of gamma-aminobutyric acid, glutamate or serotonin.
    Author: Stoof JC, De Boer T, Sminia P, Mulder AH.
    Journal: Eur J Pharmacol; 1982 Oct 22; 84(3-4):211-4. PubMed ID: 6129151.
    Abstract:
    D1-dopamine receptor stimulation did not affect the K+-induced release of [3H]GABA, [3H]glutamate, [3H]serotonin, [3H]dopamine and [14C]acetylcholine from slices of rat neostriatum. D2-dopamine receptor stimulation did not change the release of [3H]GABA, [3H]glutamate and [3H]serotonin, but inhibited the release of both [3H]dopamine and [14C]acetylcholine; this inhibition was antagonized by (-)-sulpiride. The release-inhibiting dopamine autoreceptors and the post synaptic dopamine receptors mediating the inhibition of acetylcholine release appear to be pharmacologically similar and can be classified as D2-receptors.
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