Cited by 128Genetics, Aging, and Longevity in Model OrganismsEpigenetics and DNA MethylationTelomeres, Telomerase, and Senescence

Aging clocks based on accumulating stochastic variation

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Meyer, David H., Schumacher, Björn·2024·Nature Aging

Published version of a preprint

Abstract

Aging clocks have provided one of the most important recent breakthroughs in the biology of aging, and may provide indicators for the effectiveness of interventions in the aging process and preventive treatments for age-related diseases. The reproducibility of accurate aging clocks has reinvigorated the debate on whether a programmed process underlies aging. Here we show that accumulating stochastic variation in purely simulated data is sufficient to build aging clocks, and that first-generation and second-generation aging clocks are compatible with the accumulation of stochastic variation in DNA methylation or transcriptomic data. We find that accumulating stochastic variation is sufficient to predict chronological and biological age, indicated by significant prediction differences in smoking, calorie restriction, heterochronic parabiosis and partial reprogramming. Although our simulations may not explicitly rule out a programmed aging process, our results suggest that stochastically accumulating changes in any set of data that have a ground state at age zero are sufficient for generating aging clocks.

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Authors
Meyer, D. H., & Schumacher, B.
Affiliations
University of Cologne (DE)
Corresponding author
  • Meyer, David H.
  • Schumacher, Björn
Venue
Nature Aging
Published
2024-05-09
Volume
4
Issue
6
Pages
871-885
ISSN
2662-8465 (ISSN-L)
OpenAlex
W4396761662
Cited by
128
References
110
Citations by year
2026: 43 · 2025: 60 · 2024: 21 · 2023: 3 · 2022: 1
FWCI
14.96
Type
journal article
Language
en
Open access
Locations
  • Nature Aging (publishedVersion, cc-by)
  • Research Square (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • EC | Horizon 2020 Framework Programme (H2020-MSCA-ITN-2018 (Healthage and ADDRESS ITNs))
  • John Templeton Foundation (61734)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
Keywords
aging clocks, stochastic variability, biological age, chronological age, DNA methylation, transcriptomics, programmed aging, heterochronic parabiosis, caloric restriction, partial reprogramming, smoking, age-related diseases
MeSH terms
Aging, Animals, Biological Clocks, Computer Simulation, Humans, Male, Models, Biological, Parabiosis, Smoking, Stochastic Processes, DNA Methylation, Caloric Restriction, Transcriptome

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