Evidence map›Paper›PMID 31828228›Full record

ArticleeNeurologicalSci2019

Sleep symptoms in syndromes of frontotemporal dementia and Alzheimer's disease: A proof-of-principle behavioural study.

Tara P Sani, Rebecca L Bond, Charles R Marshall, Chris J D Hardy, Lucy L Russell, Katrina M Moore, Catherine F Slattery, Ross W Paterson, Ione O C Woollacott, Indra Putra Wendi and 6 more

Open access · goldAbstract read
In one paragraph

Article in eNeurologicalSci, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  13. Observational
  14. Article
  15. Article
  16. Flight to insight: maximizing the potential ofFrontiers in molecular neuroscience · 2024
    Article
  17. Article
  18. Article
  19. Primary Progressive Aphasia: Toward a Pathophysiological Synthesis.Current neurology and neuroscience reports · 2021
    Review
  20. Review
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

16 authors at 3 institutions in 2 countries.

Tara P SaniDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Rebecca L BondDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Charles R MarshallDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Chris J D HardyDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Lucy L RussellDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Katrina M MooreDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Catherine F SlatteryDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Ross W PatersonDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Ione O C WoollacottDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Indra Putra WendiDepartment of Chemistry and Biochemistry, Faculty of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia.
Sebastian J CrutchDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Jonathan M SchottDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Jonathan D RohrerDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
Sofia H ErikssonDepartment of Clinical and Experiential Epilepsy, UCL Institute of Neurology, University College London, London, UK.
Derk-Jan DijkSurrey Sleep Research Centre, University of Surrey, UK.
Jason D WarrenDementia Research Centre, UCL Institute of Neurology, University College London, London, UK.
University College London · GBUK Dementia Research Institute · GBAtma Jaya Catholic University of Indonesia · ID

Funding

Medical Research Council MR/J009482/1Medical Research Council MR/M008525/1Medical Research Council MR/M018288/1Medical Research Council MR/M023664/1
6 · The paper itself

Abstract

Sleep disruption is a key clinical issue in the dementias but the sleep phenotypes of these diseases remain poorly characterised. Here we addressed this issue in a proof-of-principle study of 67 patients representing major syndromes of frontotemporal dementia (FTD) and Alzheimer's disease (AD), in relation to 25 healthy older individuals. We collected reports on clinically-relevant sleep characteristics - time spent overnight in bed, sleep quality, excessive daytime somnolence and disruptive sleep events. Difficulty falling or staying asleep at night and excessive daytime somnolence were significantly more frequently reported for patients with both FTD and AD than healthy controls. On average, patients with FTD and AD retired earlier and patients with AD spent significantly longer in bed overnight than did healthy controls. Excessive daytime somnolence was significantly more frequent in the FTD group than the AD group; AD syndromic subgroups showed similar sleep symptom profiles while FTD subgroups showed more variable profiles. Sleep disturbance is a significant clinical issue in major FTD and AD variant syndromes and may be even more salient in FTD than AD. These preliminary findings warrant further systematic investigation with electrophysiological and neuroanatomical correlation in major proteinopathies.

Indexed as

Alzheimer’s diseaseFrontotemporal dementiaProgressive aphasiaSemantic dementiaSleep

Identifiers

PMID31828228
PMCPMC6889070
OpenAlexW2983865067

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.