Evidence map›Paper›PMID 21931808›Full record

ArticlePloS one2011

The locus coeruleus is directly implicated in L-DOPA-induced dyskinesia in parkinsonian rats: an electrophysiological and behavioural study.

Cristina Miguelez, Asier Aristieta, Maria Angela Cenci, Luisa Ugedo

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In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Article
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  5. Review
  6. Article
  7. The effect of 5-HTBritish journal of pharmacology · 2021
    Article
  8. Review
  9. Article
  10. Article
  11. The Noradrenergic System in Parkinson's Disease.Frontiers in pharmacology · 2020
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

4 authors.

Cristina MiguelezDepartment of Pharmacology, Faculty of Medicine and Dentistry, University of the Basque Country, Vizcaya, Spain.
Asier Aristieta
Maria Angela Cenci
Luisa Ugedo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite being the most effective treatment for Parkinson's disease, L-DOPA causes a development of dyskinetic movements in the majority of treated patients. L-DOPA-induced dyskinesia is attributed to a dysregulated dopamine transmission within the basal ganglia, but serotonergic and noradrenergic systems are believed to play an important modulatory role. In this study, we have addressed the role of the locus coeruleus nucleus (LC) in a rat model of L-DOPA-induced dyskinesia. Single-unit extracellular recordings in vivo and behavioural and immunohistochemical approaches were applied in rats rendered dyskinetic by the destruction of the nigrostriatal dopamine neurons followed by chronic treatment with L-DOPA. The results showed that L-DOPA treatment reversed the change induced by 6-hydroxydopamine lesions on LC neuronal activity. The severity of the abnormal involuntary movements induced by L-DOPA correlated with the basal firing parameters of LC neuronal activity. Systemic administration of the LC-selective noradrenergic neurotoxin N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine did not modify axial, limb, and orolingual dyskinesia, whereas chemical destruction of the LC with ibotenic acid significantly increased the abnormal involuntary movement scores. These results are the first to demonstrate altered LC neuronal activity in 6-OHDA lesioned rats treated with L-DOPA, and indicate that an intact noradrenergic system may limit the severity of this movement disorder.

Indexed as

ElectrophysiologyAmphetamineAnimalsBehavior, AnimalDyskinesiasFemaleIbotenic AcidLevodopaLocus CoeruleusParkinsonian DisordersRatsRats, Sprague-DawleyAmphetamineIbotenic AcidLevodopa

Identifiers

PMID21931808
PMCPMC3170382

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.