behavior/neurological
• mice fed cocaine exhibit increased locomotion compared with control mice
• mice exhibit enhanced response to nomifensine with greater relative contribution of dopamine transporter activity to peak amplitude compared with control mice
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• mice treated with cocaine exhibit increased hyperactivity compared with control mice
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• mice exhibit increased catalepsy induced by haloperidol compared with control mice
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• in an open field
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• in mice fed cocaine
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nervous system
homeostasis/metabolism
• dopamine overflow evoked by a single stimulus in the dorsal striatum (DSt) is decreased compared to in control mice
• mice exhibit lower AMP evoked dopamine release compared with control mice
• dopamine reuptake is increased compared to in control mice
• mice exhibit enhanced response to nomifensine with greater relative contribution of dopamine transporter activity to peak amplitude compared with control mice
• following paired pulse, dopamine overflow is higher than in control mice
• single-pulse evoke dopamine overflow is decreased compared to in control mice
• multiple-pulse evoked dopamine overflow is increased compared to in wild-type mice
• however, quinpirole-treated mice exhibit normal dose-dependent inhibition of dopamine overflow
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• in the nucleus accumbens (NAcc) and cortex
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• mice treated with quinpirole exhibit less of a decrease in locomotion compared with control mice
• mice treated with quinpirole in a novel environment fail to exhibit a decrease in locomotion compared with control mice
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