where is there widespread degeneration when suffering from Parkinson’s?
substantia nigra - reduction in dopamine
Lewy bodies
clumps of proteins in surrounding dopaminergic neuron’s of substantia nigra
deep brain stimulation
subthalamic nucleus stimulated
anterograde degeneration
distal segment - between the cut and the synaptic terminal
retrograde degeneration
proximal segment - between cut and cell body
transneuronal degeneration
degeneration spreads to nearby cells
remyelination
implantation of stem cells
foetal substantia nigra cell implant
successful in monkeys - tardive dyskinesia in humans