Targeted disruption of supraspinal motor circuitry reveals a distributed network underlying Restless Legs Syndrome (RLS)-like movements in the rat.

Abstract:

:In this study we uncovered, through targeted ablation, a potential role for corticospinal, cerebello-rubro-spinal, and hypothalamic A11 dopaminergic systems in the development of restless legs syndrome (RLS)-like movements during sleep. Targeted lesions in select basal ganglia (BG) structures also revealed a major role for nigrostriatal dopamine, the striatum, and the external globus pallidus (GPe) in regulating RLS-like movements, in particular pallidocortical projections from the GPe to the motor cortex. We further showed that pramipexiole, a dopamine agonist used to treat human RLS, reduced RLS-like movements. Taken together, our data show that BG-cortico-spinal, cerebello-rubro-spinal and A11 descending projections all contribute to the suppression of motor activity during sleep and sleep-wake transitions, and that disruption of these circuit nodes produces RLS-like movements. Taken together with findings from recent genomic studies in humans, our findings provide additional support for the concept that the anatomic and genetic etiological bases of RLS are diverse.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Guo CN,Yang WJ,Zhan SQ,Yang XF,Chen MC,Fuller PM,Lu J

doi

10.1038/s41598-017-10284-3

subject

Has Abstract

pub_date

2017-08-29 00:00:00

pages

9905

issue

1

issn

2045-2322

pii

10.1038/s41598-017-10284-3

journal_volume

7

pub_type

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