Evidence map›Paper›PMID 35256811›Full record

ArticleNature ecology & evolution2022

Hibernation slows epigenetic ageing in yellow-bellied marmots.

Gabriela M Pinho, Julien G A Martin, Colin Farrell, Amin Haghani, Joseph A Zoller, Joshua Zhang, Sagi Snir, Matteo Pellegrini, Robert K Wayne, Daniel T Blumstein and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Nature ecology & evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
21.3field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 57 citations in OpenAlex.

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  9. Designing Epigenetic Clocks for Wildlife Research.Molecular ecology resources · 2025
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  10. Review
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  14. The androgen clock is an epigenetic predictor of long-term male hormone exposure.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
  16. Article
  17. Article
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  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 4 countries.

Gabriela M PinhoDepartment of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA. gabriela.m.pinho@gmail.com.ORCID http://orcid.org/0000-0003-4671-8221
Julien G A MartinDepartment of Biology, University of Ottawa, Ottawa, Ontario, Canada. julien.martin@uottawa.ca.ORCID http://orcid.org/0000-0001-7726-6809
Colin FarrellDepartment of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0002-3138-6108
Amin HaghaniHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0002-6052-8793
Joseph A ZollerBiostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0001-6309-0291
Joshua ZhangHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.ORCID http://orcid.org/0000-0002-4488-1175
Sagi SnirDepartment of Evolutionary & Environmental Biology, Institute of Evolution, University of Haifa, Haifa, Israel.
Matteo PellegriniDepartment of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA.
Robert K WayneDepartment of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA.
Daniel T BlumsteinDepartment of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA. marmots@ucla.edu.ORCID http://orcid.org/0000-0001-5793-9244
Steve HorvathHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA. SHorvath@mednet.ucla.edu.ORCID http://orcid.org/0000-0002-4110-3589
University of California, Los Angeles · USUniversity of Haifa · ILUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Species that hibernate generally live longer than would be expected based solely on their body size. Hibernation is characterized by long periods of metabolic suppression (torpor) interspersed by short periods of increased metabolism (arousal). The torpor-arousal cycles occur multiple times during hibernation, and it has been suggested that processes controlling the transition between torpor and arousal states cause ageing suppression. Metabolic rate is also a known correlate of longevity; we thus proposed the 'hibernation-ageing hypothesis' whereby ageing is suspended during hibernation. We tested this hypothesis in a well-studied population of yellow-bellied marmots (Marmota flaviventer), which spend 7-8 months per year hibernating. We used two approaches to estimate epigenetic age: the epigenetic clock and the epigenetic pacemaker. Variation in epigenetic age of 149 samples collected throughout the life of 73 females was modelled using generalized additive mixed models (GAMM), where season (cyclic cubic spline) and chronological age (cubic spline) were fixed effects. As expected, the GAMM using epigenetic ages calculated from the epigenetic pacemaker was better able to detect nonlinear patterns in epigenetic ageing over time. We observed a logarithmic curve of epigenetic age with time, where the epigenetic age increased at a higher rate until females reached sexual maturity (two years old). With respect to circannual patterns, the epigenetic age increased during the active season and essentially stalled during the hibernation period. Taken together, our results are consistent with the hibernation-ageing hypothesis and may explain the enhanced longevity in hibernators.

Indexed as

HibernationMarmotaAnimalsEpigenesis, GeneticFemaleLongevitySeasons

Identifiers

PMID35256811
PMCPMC8986532
OpenAlexW4220828425

What OpenQuestion holds

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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.