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DNA methylation and healthy human aging

Open access
Jones, Meaghan J., Goodman, Sarah J., Kobor, Michael S.·2015·Aging Cell

Abstract

Summary: The process of aging results in a host of changes at the cellular and molecular levels, which include senescence, telomere shortening, and changes in gene expression. Epigenetic patterns also change over the lifespan, suggesting that epigenetic changes may constitute an important component of the aging process. The epigenetic mark that has been most highly studied is DNA methylation, the presence of methyl groups at CpG dinucleotides. These dinucleotides are often located near gene promoters and associate with gene expression levels. Early studies indicated that global levels of DNA methylation increase over the first few years of life and then decrease beginning in late adulthood. Recently, with the advent of microarray and next‐generation sequencing technologies, increases in variability of DNA methylation with age have been observed, and a number of site‐specific patterns have been identified. It has also been shown that certain CpG sites are highly associated with age, to the extent that prediction models using a small number of these sites can accurately predict the chronological age of the donor. Together, these observations point to the existence of two phenomena that both contribute to age‐related DNA methylation changes: epigenetic drift and the epigenetic clock. In this review, we focus on healthy human aging throughout the lifetime and discuss the dynamics of DNA methylation as well as how interactions between the genome, environment, and the epigenome influence aging rates. We also discuss the impact of determining ‘epigenetic age’ for human health and outline some important caveats to existing and future studies.

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Metadata

Authors
Jones, M. J., Goodman, S. J., & Kobor, M. S.
Venue
Aging Cell
Publisher
Wiley
Published
2015-04-25
Volume
14
Issue
6
Pages
924-932
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2036284273
Cited by
928
References
95
FWCI
26.76
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: DNA methylation and healthy human aging. https://app.cochat.ai/papers/10.1111/acel.12349
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Jones, M. J., Goodman, S. J., & Kobor, M. S. (2015). DNA methylation and healthy human aging. Aging Cell. https://doi.org/10.1111/acel.12349

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