Evidence map›Paper›PMID 33384723›Full record

ArticleJournal of circadian rhythms2020

The Peripheral Circadian Clock and Exercise: Lessons from Young and Old Mice.

Danielle R Bruns, Musharraf Yusifova, Nicholas A Marcello, Carly J Green, Whitney J Walker, Emily E Schmitt

Open access · goldAbstract read
In one paragraph

Article in Journal of circadian rhythms, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Circadian biology of cardiac aging.Journal of molecular and cellular cardiology · 2025
    Review
  7. Article
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Circadian effects on UV-induced damage and mutations.Mutation research. Reviews in mutation research
    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

6 authors at 1 institution in 1 country.

Danielle R BrunsCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
Musharraf YusifovaCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
Nicholas A MarcelloCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
Carly J GreenCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
Whitney J WalkerCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
Emily E SchmittCollege of Health Sciences, University of Wyoming, Laramie, WY, US.
University of Wyoming · US

Funding

Wyoming INBRE Phase 4- Equipment Supplement for x-ray diffractometer for Center for Advanced Scientific InstrumentationP20GM103432 · NIGMS · UNIVERSITY OF WYOMING · PI Nicolas A. Blouin · 2012 to 2026
$56.8M
Therapeutic activation of AMPK for the aging right heartK01AG058810 · NIA · UNIVERSITY OF WYOMING · PI BRUNS, DANIELLE REULAND · 2019 to 2023
$805k
NIA NIH HHS K01 AG058810NIGMS NIH HHS P20 GM103432
6 · The paper itself

Abstract

Critical biological processes are under control of the circadian clock. Disruption of this clock, e.g. during aging, results in increased risk for development of chronic disease. Exercise is a protective intervention that elicits changes in both age and circadian pathologies, yet its role in regulating circadian gene expression in peripheral tissues is unknown. We hypothesized that voluntary wheel running would restore disrupted circadian rhythm in aged mice. We analyzed wheel running patterns and expression of circadian regulators in male and female C57Bl/6J mice in adult (~4 months) and old (~18 months) ages. As expected, young female mice ran further than male mice, and old mice ran significantly less than young mice. Older mice of both sexes had a delayed start time in activity which likely points to a disrupted diurnal running pattern and circadian disruption. Voluntary wheel running rescued some circadian dysfunction in older females. This effect was not present in older males, and whether this was due to low wheel running distance or circadian output is not clear and warrants a future study. Overall, we show that voluntary wheel running can rescue some circadian dysfunction in older female but not male mice; and these changes are tissue dependent. While voluntary running was not sufficient to fully rescue age-related changes in circadian rhythm, ongoing studies will determine if forced exercise (e.g. treadmill) and/or chrono-timed exercise can improve age-related cardiovascular, skeletal muscle, and circadian dysfunction.

Indexed as

agingcircadian rhythmexercise

Identifiers

PMID33384723
PMCPMC7757608
OpenAlexW3115003843

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.