Evidence map›Paper›PMID 33447113›Full record

ArticleNature and science of sleep2021

Striatal Dopaminergic Deficit and Sleep in Idiopathic Rapid Eye Movement Behaviour Disorder: An Explorative Study.

Danielle Wasserman, Dorothea Bindman, Alexander D Nesbitt, Diana Cash, Milan Milosevic, Paul T Francis, K Ray Chaudhuri, Guy D Leschziner, Luigi Ferini-Strambi, Clive Ballard and 2 more

Open access · goldAbstract read
In one paragraph

Article in Nature and science of sleep, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Unraveling sleep dysfunction in progressive supranuclear palsy: a pilot study on the role of periodic limb movements in sleep and insomnia.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 3 countries.

Danielle Wasserman *Sleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK.ORCID 0000-0002-4150-7831
Dorothea Bindman *Sleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK.
Alexander D NesbittSleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK.
Diana CashBRAIN, Department of Neuroimaging, King's College London, London, UK.
Milan MilosevicSchool of Public Health "Andrija Stampar", University of Zagreb School of Medicine, Zagreb, Croatia.ORCID 0000-0001-9008-7645
Paul T FrancisWolfson Centre for Age-Related Diseases, King's College London, London, UK.ORCID 0000-0001-8159-4469
K Ray ChaudhuriMovement Disorders Unit, King's College Hospital, Department of Clinical and Basic Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, Parkinson Foundation Centre of Excellence, King's College London, London, UK.ORCID 0000-0003-2815-0505
Guy D LeschzinerSleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK.ORCID 0000-0001-8799-7226
Luigi Ferini-StrambiSleep Disorders Center, Department of Clinical Neurosciences, Università Vita-Salute San Raffaele, Milan, Italy.ORCID 0000-0003-2867-5424
Clive BallardMedical School, University of Exeter, Exeter, UK.ORCID 0000-0003-0022-5632
Amy EcclesDepartment of Nuclear Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK.
Ivana RosenzweigSleep and Brain Plasticity Centre, Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), King's College London, London, UK.
King's College London · GBGuy's and St Thomas' NHS Foundation Trust · GBUniversity of Exeter · GBUniversity of Zagreb · HRVita-Salute San Raffaele University · IT

Funding

Wellcome Trust 103952/Z/14/Z
6 · The paper itself

Abstract

introductionIdiopathic rapid eye movement (REM) sleep behavior disorder (iRBD) is increasingly recognised as an important precursor disease state of alpha-synucleinopathies. This parasomnia is characterized by a history of recurrent nocturnal dream enactment behaviour, loss of skeletal muscle atonia, and increased phasic muscle activity during REM sleep. Neuroimaging studies of striatal dopamine transporter uptake tracer signaling suggest increasing dopaminergic deficit across the continuum of the alpha-synucleinopathies, with early sleep dysfunction suggestive of early caudate dysfunction. Henceforth, we set out to investigate the relationship between early sleep changes and the striatal dopaminergic availability in iRBD.

methodsTwelve patients with iRBD, who had undergone a video polysomnography and a neuroimaging assessment of striatal dopamine transporter (DaT) uptake tracer signaling, and 22 matched controls who had similarly undergone a video polysomnography were retrospectively identified. Data were statistically analyzed to identify altered sleep parameters and correlate them with striatal dopamine transporter uptake tracer signaling.

resultsThe iRBD patients exhibited an increased number of periodic limb movements during sleep ( DISCUSSION: To the best of our knowledge, this is the first demonstration of a close relationship between dopaminergic availability in striatum and the quality of sleep in iRBD. Taken together, our exploratory findings suggest that subtle but functionally significant striatal changes in early stages of iRBD may contribute to the further shaping of sleep architecture.

Indexed as

DaTSCANisolated rapid eye movement behaviour disorderpolysomnographysleep architecturestriatal dopamine transporter uptake tracer signalling imagingstriatum

Identifiers

PMID33447113
PMCPMC7802085
OpenAlexW3114823265

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.