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  • Title: Sulpiride injection into the dorsal striatum increases methamphetamine-induced gnawing in rats.
    Author: Koshikawa N, Aoki S, Tomiyama K, Maruyama Y, Kobayashi M.
    Journal: Eur J Pharmacol; 1987 Jan 06; 133(1):119-25. PubMed ID: 3556388.
    Abstract:
    Sulpiride injected into the dorsal striatum enhanced both methamphetamine- and apomorphine-induced gnawing but blocked both when injected into the ventral striatum. The hyperlocomotion produced by methamphetamine was reduced by sulpiride injected into the dorsal striatum. The DA, DOPAC and HVA concentrations in the ventral striatum were increased 60 min after the injection of sulpiride into the dorsal striatum. Possible reasons for the enhancement of methamphetamine-induced gnawing by sulpiride injected into the dorsal striatum are discussed.
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