No relationship between drug effects on dopamine release
and drug
effects on dopamine uptake. Correlational analysis was run in order
to confirm that evoked dopamine release was not influencing drug induced
uptake inhibition. Evoked dopamine release in the presence of drug
was correlated with the app. Km of the
psychostimulants methylphenidate (MPH; 30 μM; MPH, n = 11; DAT-tg, n = 10), cocaine (30 μM; MPH, n = 9; DAT-tg, n = 9), and amphetamine
(AMPH; 10 μM; MPH, n = 9; DAT-tg, n = 9) (A) in transgenic DAT overexpressing mice (DAT-tg) or (B) following
MPH self-administration.