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Target intelligence / Profile preview
Dopamine System (N/A)
- Target
- N/A
- Molecular classification
- Neurotransmitter System
01
Overview
The dopamine system refers to the network of neurons, pathways, receptors, and signaling mechanisms in the body that utilize dopamine as a neurotransmitter. Dopamine plays critical roles in movement regulation, reward processing and motivation, learning and memory, mood modulation, executive function, and neuroendocrine control. Dysregulation of the dopamine system is implicated in several disorders, including Parkinson’s disease, schizophrenia, and addiction.
- Other names
- Dopaminergic SystemDopamine neurotransmissionDA system
02
Mechanism of action
Varies depending on the specific drug and its target within the dopamine system. Examples include: - L-DOPA: Increases dopamine synthesis. - Dopamine agonists: Directly activate dopamine receptors. - Dopamine antagonists: Block dopamine receptors. - Reuptake inhibitors: Increase dopamine levels in the synapse by blocking reuptake. - MAOIs: Prevent dopamine degradation.
03
Biological functions
Movement regulationReward processingMotivationLearning and memoryMood modulationExecutive functionNeuroendocrine controlSleep regulationArousalLactationKidney functionBlood flow regulationPain processing
04
Disease associations
Parkinson’s diseaseSchizophreniaAddiction/substance use disordersADHDRestless legs syndromeDepressionBipolar disorder
05
Safety considerations
Motor side effects (e.g., dyskinesias, dystonia)Psychiatric side effects (e.g., psychosis, depression)Cardiovascular effects (e.g., arrhythmias, hypotension)Impulse control disorders (e.g., pathological gambling, hypersexuality)Neuroleptic malignant syndromeSerotonin syndrome
06
Interacting drugs
L-DOPA
8 more in the full profile.
07
Biomarkers
Dopamine levels in cerebrospinal fluid (CSF)Dopamine transporter (DAT) imagingDopamine receptor binding potential (PET/SPECT)Genetic variations in dopamine-related genes
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