Dopamine Pathways of the Basal Ganglia and Diencephalospinal Tract
Placeholder: dopamine circuits normally regulate sensorimotor throughput.
- A11–spinal: Key pathway (Placeholder note)
- Dopamine: Neurotransmitter (Placeholder note)
- Sensorimotor: Target circuit (Placeholder note)
- Basal ganglia: Structure (Placeholder note)
Placeholder heading on basal ganglia dopamine role
Placeholder sentence describing basal ganglia dopaminergic control of movement circuits.
Iron as a Cofactor for Dopamine Synthesis
Placeholder: brain iron deficiency limits dopamine production capacity.
- Tyrosine hydroxylase: Enzyme affected (Placeholder note)
- Iron (Fe): Cofactor (Placeholder note)
- Reduced: CSF ferritin (Placeholder note)
- Substantia nigra: Brain region (Placeholder note)
Placeholder heading on iron-dopamine link
Placeholder sentence describing how low iron impairs dopamine synthesis enzymes.
Consequences of Reduced Dopaminergic Signaling
Placeholder: weaker dopamine signaling disinhibits sensorimotor pathways.
- Variable: Signal drop (Placeholder note)
- D2/D3: Receptor (Placeholder note)
- Disinhibition: Effect (Placeholder note)
- Leg discomfort: Outcome (Placeholder note)
Placeholder heading on signaling deficit effects
Placeholder sentence describing sensorimotor disinhibition from low dopamine tone.
Circadian Rhythm of Dopamine and Evening Symptom Worsening
Placeholder: dopamine and iron availability dip in the evening, worsening symptoms.
- Evening/night: Peak symptoms (Placeholder note)
- PM hours: Dopamine trough (Placeholder note)
- Circadian clock: Rhythm driver (Placeholder note)
- Morning: Relief (Placeholder note)
Placeholder heading on circadian worsening
Placeholder sentence describing the diurnal dopamine rhythm and evening symptom rise.
Placeholder callout on why evening hours are worst for RLS.
From Sensory Discomfort to the Urge-to-Move Trigger
Placeholder: unrelieved sensorimotor disinhibition produces the urge to move.
- Rest/inactivity: Trigger (Placeholder note)
- Movement: Relief (Placeholder note)
- Uncomfortable: Sensation (Placeholder note)
- Sensorimotor loop: Circuit (Placeholder note)
Placeholder heading on urge-to-move trigger
Placeholder sentence describing how discomfort during rest triggers urge to move.
Placeholder callout summarizing the full dopaminergic mechanism cascade.