ArticleMovement disorders : official journal of the Movement Disorder Society2025
Levodopa Disrupts Activity Patterns and Encoding of Movement in Striatal Cholinergic Interneurons of Behaving Mice.
Article in Movement disorders : official journal of the Movement Disorder Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Is levodopa induced freezing of gait a paradox or an expected phenomenon?: a clinico-pathophysiological hypothesis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Review
- Synchronous activation of striatal cholinergic interneurons induces local serotonin release.Nature communications · 2026Article
- Parkinsonian striatal acetylcholine dynamics are refractory to L-DOPA treatment.bioRxiv : the preprint server for biology · 2025Article
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7 authors.
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Abstract
objectivesLevodopa treatment, the gold standard therapy for Parkinson's disease, can lead to levodopa-induced dyskinesias (LIDs). Recent studies in acute brain slices have implicated the neural dynamics of striatal cholinergic interneurons (CINs) in the pathophysiology of LID, reporting that their discharge becomes more bursty in dyskinetic mice. However, little is known about how parkinsonism and levodopa affect CINs in vivo.
methodsWe used microendoscopic imaging in the dorsal striatum of the genetically encoded Ca
resultsWe found that 6-OHDA drove a levodopa-insensitive increase in the baseline rate of activity of CINs and a reduction in their responsiveness to self-initiated movement. Furthermore, levodopa treatment (even before the appearance of LIDs) drove an increase in the amplitude of the individual Ca
conclusions6-OHDA treatment disrupts the robust encoding of movement by CINs. Levodopa disrupts the activity of CINs, possibly making them more bursty in vivo, even before the manifestation of LIDs. Thus, molecularly-identified CINs are implicated in the pathophysiology of parkinsonism. Not only does levodopa fail to restore their normal dynamics, but it actually exacerbates their abnormal burstiness. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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