Levodopa therapy for Parkinson's disease: history, current status and perspectives

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Abstrakt

Parkinson's disease (PD) is a neurodegenerative disorder, characterized by a preferential degeneration of dopaminergic neurons in the substantia nigra pars compacta. This results in a profound decrease of striatal dopamine (DA) levels, which in turn leads to the cardinal motor symptoms of PD; muscle rigidity, hypo- and bradykinesia and resting tremor. Even 50 years after its initial use, the DA precursor levodopa (L-dopa), is still the most effective medical therapy for the symptomatic treatment of PD. Long-term L-dopa treatment is however, unfortunately associated with undesirable side effects such as motor fluctuations and dyskinesias. Furthermore, despite the disease alleviating effects of L-dopa, it is still discussed whether L-dopa has a neurotoxic or neuroprotective effect on dopaminergic neurons. Here we review the history of L-dopa, including its discovery, development and current use in the treatment of PD. We furthermore review current evidence of the L-dopa-induced side effects and perspectives of L-dopa treatment in PD compared to other established treatments such as DA-agonists and the inhibitors of catechol-o-methyltransferase and monoamine oxidase B.

OriginalsprogEngelsk
TidsskriftC N S & Neurological Disorders - Drug Targets
Vol/bind19
Udgave nummer8
Sider (fra-til)572-583
ISSN1871-5273
DOI
StatusUdgivet - 2020

Bibliografisk note

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