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Dopamine D1 receptor protein is elevated in nucleus accumbens of human, chronic methamphetamine users
Animal data have long suggested that an adaptive upregulation of nucleus accumbens dopamine D1 receptor function might underlie part of the dependency on drugs of abuse. We measured by quantitative immunoblott...
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Article
Brain choline acetyltransferase activity in chronic, human users of cocaine, methamphetamine, and heroin
Cognitive impairment has been reported in some chronic users of psychostimulants, raising the possibility that long-term drug exposure might damage brain neuronal systems, including the cholinergic system, whi...