Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Causality-enriched epigenetic age uncouples damage and adaptation

Kejun Ying, Hanna Liu, Andrei E. Tarkhov, Marie C. Sadler, Ake T. Lu, Mahdi Moqri, Steve Horvath, Zoltán Kutalik, Xia Shen, Vadim N. Gladyshev

Nature Aging · 2024

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Summary

This paper presents a methodological advance in epigenetic ageing research by developing causality-enriched epigenetic age measures that distinguish between accumulating biological damage and adaptive physiological responses. As suggested by the title and Nature Aging publication, the authors employ causal inference techniques to decouple these two processes, potentially improving the specificity of epigenetic clocks for understanding human ageing mechanisms. The work implies that conventional epigenetic age estimators conflate damage and adaptation, and that separating these processes could refine our understanding of healthy versus pathological ageing trajectories.

Regional applicability

The methodological framework developed here could strengthen UK biobank and clinical ageing research by improving the precision of epigenetic biomarkers used in prospective cohort studies. However, applicability depends on availability of sufficient longitudinal data and causal inference infrastructure in UK research settings.

Key measures

Epigenetic age acceleration; DNA methylation patterns; causal inference models; biological damage versus adaptation metrics

Outcomes reported

The study developed and validated causality-enriched epigenetic age measures that distinguish between biological damage and adaptive responses during ageing. The research examined how epigenetic clocks can be refined to separate deleterious ageing processes from compensatory physiological mechanisms.

Theme
Nutrition & health
Subject
Other / interdisciplinary
Study type
Research
Study design
Research study
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Human clinical
DOI
10.1038/s43587-023-00557-0
Catalogue ID
SNmoj7nui9-fqc3rk

Topic tags

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