Evidence map›Paper›PMID 31353226›Full record

ArticleStem cell reports2019

Downregulation of mTOR Signaling Increases Stem Cell Population Telomere Length during Starvation of Immortal Planarians.

Marta Iglesias, Daniel A Felix, Óscar Gutiérrez-Gutiérrez, Maria Del Mar De Miguel-Bonet, Sounak Sahu, Beatriz Fernández-Varas, Rosario Perona, A Aziz Aboobaker, Ignacio Flores, Cristina González-Estévez

Open access · goldAbstract read
In one paragraph

Article in Stem cell reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
0.9field-weighted citation impact, top 25% 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, 34 citations in OpenAlex.

  1. Unraveling the role ofZoological research · 2026
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  9. Health Benefits of Intermittent Fasting.Microbial physiology · 2024
    Review
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  14. Fasting: From Physiology to Pathology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Review
  15. Article
  16. Review
  17. Article
  18. Article
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  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

10 authors at 4 institutions in 3 countries.

Marta IglesiasLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, 07745 Jena, Germany; Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain.
Daniel A FelixLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, 07745 Jena, Germany.
Óscar Gutiérrez-GutiérrezLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, 07745 Jena, Germany.
Maria Del Mar De Miguel-BonetCentro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain.
Sounak SahuDepartment of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.
Beatriz Fernández-VarasInstituto de Investigaciones Biomédicas CSIC/UAM, IDiPaz, Arturo Duperier 4, 28029 Madrid, Spain.
Rosario PeronaInstituto de Investigaciones Biomédicas CSIC/UAM, IDiPaz, Arturo Duperier 4, 28029 Madrid, Spain; Ciber Network on Rare Diseases (CIBERER), C/ Alvaro de Bazan, 10, 46010 Valencia, Spain.
A Aziz AboobakerDepartment of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.
Ignacio FloresCentro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain. Electronic address: iflores@cnic.es.
Cristina González-EstévezLeibniz Institute on Aging-Fritz Lipmann Institute (FLI), Beutenbergstrasse 11, 07745 Jena, Germany; Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Melchor Fernández Almagro 3, 28029 Madrid, Spain. Electronic address: cristina.gonzalez@leibniz-fli.de.
Leibniz Institute on Aging - Fritz Lipmann Institute (FLI) · DESpanish National Centre for Cardiovascular Research · ESInstituto de Investigaciones Biomédicas Sols-Morreale · ESUniversity of Oxford · GB

Funding

Biotechnology and Biological Sciences Research Council BB/K007564/1Medical Research Council MR/M000133/1
6 · The paper itself

Abstract

Reduction of caloric intake delays and prevents age-associated diseases and extends the life span in many organisms. It may be that these benefits are due to positive effects of caloric restriction on stem cell function. We use the planarian model Schmidtea mediterranea, an immortal animal that adapts to long periods of starvation by shrinking in size, to investigate the effects of starvation on telomere length. We show that the longest telomeres are a general signature of planarian adult stem cells. We also observe that starvation leads to an enrichment of stem cells with the longest telomeres and that this enrichment is dependent on mTOR signaling. We propose that one important effect of starvation for the rejuvenation of the adult stem cell pool is through increasing the median telomere length in somatic stem cells. Such a mechanism has broad implications for how dietary effects on aging are mediated at the whole-organism level.

Indexed as

Adult Stem CellsAnimalsArgonaute ProteinsDown-RegulationHelminth ProteinsModels, BiologicalPlanariansRNA, Double-StrandedRNA InterferenceSignal TransductionStarvationTelomereTelomere HomeostasisTOR Serine-Threonine KinasesArgonaute ProteinsHelminth ProteinsRNA, Double-StrandedTOR Serine-Threonine KinasesagingfastingimmortalmTORneoblastplanarianSMG-1starvationstem celltelomere

Identifiers

PMID31353226
PMCPMC6700675
OpenAlexW2963069663

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.