reviewBrainMar 1, 2023HYBRID OA

Impaired dopamine release in Parkinson’s disease

University of Oxford · CRUK/MRC Oxford Institute for Radiation Oncology · +2 more institutions

PubMed
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Abstract

Parkinson's disease is the second most common neurodegenerative disease and yet the early pathophysiological events of the condition and sequences of dysfunction remain unclear. The loss of dopaminergic neurons and reduced levels of striatal dopamine are descriptions used interchangeably as underlying the motor deficits in Parkinson's disease. However, decades of research suggest that dopamine release deficits in Parkinson's disease do not occur only after cell death, but that there is dysfunction or dysregulation of axonal dopamine release before cell loss. Here we review the evidence for dopamine release deficits prior to neurodegeneration in Parkinson's disease, drawn from a large and emerging range of…

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