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Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. [1] Dopamine receptors are therefore common drug targets. Dopamine receptors activate different effectors through not only G-protein coupling, but also signaling through different protein (dopamine receptor-interacting ...
4,4-Diphenylpiperidines including budipine and prodipine are effective in the treatment of Parkinson's disease. [29] [30] [31] Their mechanism of action is unknown but they act as indirect dopaminergic agents. [30] [29] [31] They have distinct effects from other antiparkinsonian agents and dopaminergic drugs. [30] [29] [31]
Central dopaminergic agonist properties of semisynthetic ergoline derivatives lergotrile, pergolide, bromocriptine and lisuride have been established. Some studies suggest that ergot alkaloids have the properties of mixed agonist-antagonist with regards to certain presynaptic and postsynaptic receptors.
Other dopaminergic drugs that have been used or suggested in the treatment of disorders of diminished motivation include rasagiline (a selective monoamine oxidase B (MAO-B) inhibitor; but see more below), tolcapone (a centrally-acting catechol-O-methyltransferase (COMT) inhibitor), and amantadine (an indirectly acting dopaminergic agent that ...
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Amphetamine, an NDRA and one of the most well-known DRAs. 4-Methylaminorex (4-MAR), the cis- isomer being one of the most dopamine-selective NDRAs known.. A dopamine releasing agent (DRA) is a type of drug which induces the release of dopamine in the body and/or brain.
This results in increased extracellular concentrations of dopamine and increase in dopaminergic neurotransmission. [ 1 ] DRIs are used in the treatment of attention-deficit hyperactivity disorder (ADHD) and narcolepsy for their psychostimulant effects, and in the treatment of obesity and binge eating disorder for their appetite suppressant effects.
DRT has been used to improve motor skills, impulsivity, and decision making in Parkinson's patients. [1] In Parkinson's disease patients, dopamine deficiencies can be seen in two key areas of the brain: the dorsal frontostriatal circuit, the area responsible for motor skills and task-switching, and the ventral frontostriatal circuit, the area responsible for impulsivity. [1]