Evidence map›Paper›PMID 29302035›Full record

ArticleNature communications2018

Sleeping sickness is a circadian disorder.

Filipa Rijo-Ferreira, Tânia Carvalho, Cristina Afonso, Margarida Sanches-Vaz, Rui M Costa, Luísa M Figueiredo, Joseph S Takahashi

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 99 citations in OpenAlex.

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  10. BioClocks UK: driving robust cycles of discovery to impact.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
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  11. Circadian rhythms: pervasive, and often times evasive.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  12. Circadian metabolic adaptations to infections.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  13. Review
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  18. The intersection of hostMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  19. Clockwork intruders: Do parasites manipulate their hosts' circadian rhythms?Current research in parasitology & vector-borne diseases · 2024
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

Filipa Rijo-FerreiraGraduate Program in Areas of Basic and Applied Biology, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, 4099-002, Porto, Portugal.ORCID http://orcid.org/0000-0002-4003-020X
Tânia CarvalhoInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisboa, Portugal.
Cristina AfonsoChampalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, 1400-038, Lisbon, Portugal.
Margarida Sanches-VazInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisboa, Portugal.
Rui M CostaChampalimaud Neuroscience Programme, Champalimaud Centre for the Unknown, 1400-038, Lisbon, Portugal.
Luísa M FigueiredoInstituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, 1649-028, Lisboa, Portugal. lmf@medicina.ulisboa.pt.ORCID http://orcid.org/0000-0002-5752-6586
Joseph S TakahashiDepartment of Neuroscience, University of Texas Southwestern Medical Center, Dallas, TX, 75390-9111, USA. joseph.takahashi@utsouthwestern.edu.ORCID http://orcid.org/0000-0003-0384-8878
University of Lisbon · PTChampalimaud Foundation · PTHoward Hughes Medical Institute · USSouthwestern Medical Center · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Sleeping sickness is a fatal disease caused by Trypanosoma brucei, a unicellular parasite that lives in the bloodstream and interstitial spaces of peripheral tissues and the brain. Patients have altered sleep/wake cycles, body temperature, and endocrine profiles, but the underlying causes are unknown. Here, we show that the robust circadian rhythms of mice become phase advanced upon infection, with abnormal activity occurring during the rest phase. This advanced phase is caused by shortening of the circadian period both at the behavioral level as well as at the tissue and cell level. Period shortening is T. brucei specific and independent of the host immune response, as co-culturing parasites with explants or fibroblasts also shortens the clock period, whereas malaria infection does not. We propose that T. brucei causes an advanced circadian rhythm disorder, previously associated only with mutations in clock genes, which leads to changes in the timing of sleep.

Indexed as

AnimalsBody TemperatureCircadian RhythmFibroblastsGene ExpressionHost-Parasite InteractionsHumansMaleMice, Inbred C57BLMice, TransgenicPeriod Circadian ProteinsSleepSleep Disorders, Circadian RhythmTime FactorsTrypanosoma brucei bruceiTrypanosomiasis, AfricanPeriod Circadian Proteins

Identifiers

PMID29302035
PMCPMC5754353
OpenAlexW2779295427

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.