Evidence map›Paper›PMID 30018180›Full record

ArticleAging2018

Caloric restriction effects on liver mTOR signaling are time-of-day dependent.

Richa Tulsian, Nikkhil Velingkaar, Roman Kondratov

Open access · greenAbstract read
In one paragraph

Article in Aging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

24 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Review
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  9. Article
  10. Circadian clock controls rhythms in ketogenesis by interfering with PPARα transcriptional network.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Article
  12. Review
  13. Fasting: How to Guide.Nutrients · 2021
    Article
  14. Article
  15. Review
  16. Review
  17. Two-meal caloric restriction induces 12-hour rhythms and improves glucose homeostasis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  18. Article
  19. Article
  20. Article
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

3 authors at 1 institution in 1 country.

Richa TulsianDepartment of Biological, Geological, and Environmental Sciences and Center for Gene Regulation in Health and Diseases, Cleveland State University, Cleveland, OH 44115, USA.
Nikkhil VelingkaarDepartment of Biological, Geological, and Environmental Sciences and Center for Gene Regulation in Health and Diseases, Cleveland State University, Cleveland, OH 44115, USA.
Roman KondratovDepartment of Biological, Geological, and Environmental Sciences and Center for Gene Regulation in Health and Diseases, Cleveland State University, Cleveland, OH 44115, USA.
Cleveland State University · US

Funding

Diversity Supplement for Circadian Clock and Dietary RestrictionR01AG039547 · NIA · CLEVELAND STATE UNIVERSITY · PI Roman V Kondratov · 2011 to 2026
$5.5M
A Digital Laser Scanner Biomolecular Imaging System: Amersham Typhoon 5S10OD025252 · OD · CLEVELAND STATE UNIVERSITY · PI LI, BIBO · 2018 to 2018
$163k
NIA NIH HHS R01 AG039547NIH HHS S10 OD025252
6 · The paper itself

Abstract

The regulation of mechanistic target of rapamycin (mTOR) signaling contributes to the metabolic effects of a calorie restriction (CR) diet. We assayed the effect of CR on the activity of mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2) in the liver of mice at six different times across the day. CR effects on mTORC1 and mTORC2 activities were time-of-day dependent. CR induced mTORC1 activity at one time, reduced at two times and has no effect during other times. CR induced mTORC2 activity at one time of the day and has no effects at other times. Circadian clocks are implemented in the regulation of mTOR signaling in mammals and mechanisms of CR. We assayed the effect of CR on mTOR signaling in the liver of mice deficient for circadian transcriptional regulators BMAL1 and CRYs. The CR induced suppression of mTORC1 activity was observed in both clock mutants, while up regulation of mTORC2 was observed in the liver of CRY deficient but not in the liver of BMAL1 deficient mice. Our finding revealed that CR has different time dependent effect on the activity of mTOR complexes 1 and 2 and suggest that circadian clock protein BMAL1 is involved in the up regulation of mTORC2 upon CR in mammals.

Indexed as

Caloric RestrictionCircadian RhythmAnimalsARNTL Transcription FactorsCryptochromesGene Expression RegulationLiverMiceMice, KnockoutSignal TransductionTOR Serine-Threonine KinasesARNTL Transcription FactorsBmal1 protein, mouseCry1 protein, mouseCry2 protein, mouseCryptochromesmTOR protein, mouseTOR Serine-Threonine Kinasesagingbiological clockscircadian clocksglucoseinsulin sensitivitymetabolismmTOR signaling pathwayprotein translation

Identifiers

PMID30018180
PMCPMC6075448
OpenAlexW2884013871

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.