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dopamine reuptake inhibitor : ウィキペディア英語版
dopamine reuptake inhibitor
A dopamine reuptake inhibitor (DRI) is a type of drug which acts as a reuptake inhibitor of the monoamine neurotransmitter dopamine by blocking the action of the dopamine transporter (DAT). Reuptake inhibition is achieved when extracellular dopamine not absorbed by the postsynaptic neuron is blocked from re-entering the presynaptic neuron. This, in turn, leads to increased extracellular concentrations of dopamine and therefore an increase in dopaminergic neurotransmission.
DRIs are frequently used in the treatment of conditions like ADHD and narcolepsy on account of their psychostimulant effects and in the treatment of obesity due to their appetite suppressant properties. They have also been used as antidepressants in the treatment of mood disorders, but their use for this indication has been limited on account of their abuse potential and legal restrictions. Lack of dopamine reuptake and the increase in extracellular levels of dopamine have been linked to increased susceptibility to addictive behavior due to the increase in dopaminergic neurotransmission. The dopaminergic pathways are considered to be strong reward centers. In addition, many DRIs such as cocaine are drugs of abuse due to the rewarding effects evoked by elevated synaptic concentrations of dopamine in the brain.
==Society and culture==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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