The detail information of "Epigenetic Clocks"

BIOMARKER INFORMATION
Biomarker
Epigenetic Clocks
Category
Molecular Changes
Affected targets
Whole Body
Hallmarks
Epigenetic Alterations
Molecular
Other
Description
Epigenetic "clocks" are estimations of "biological" age derived from DNAm patterns associated with markers of aging?. Initially, these measures, more generally called DNAm surrogates, were developed by identifying DNAm patterns associated with chronological age, such as the Horvath and Hannum clocks?. More recent epigenetic measures, known as the "second and third generation clocks," focus on DNAm patterns associated with aging phenotypes, health risks, mortality, or change in health indicators, including GrimAge, PhenoAge and DunedinPACE?.
EXPERIMENT INFORMATION
Region
worldwide
Race
multiple racial
Samples
3581
Age
68.25
Gender
/
Application
Predictive
Conclusion
Pc-based epigenetic age acceleration measures do not significantly change the relationship of dnam-based age acceleration measures to health outcomes or mortality compared to earlier versions of these measures. while the usefulness of dnam-based age acceleration as a predictor of later life health outcomes is quite clear, other factors such as demographics, ses, mental health, and health behaviors remain equally, if not more robust, predictors of later life outcomes.
Reference
Eileen M Crimmins, Proc Natl Acad Sci U S A, 2023
Details
PMID:36802439 (Click to Pubmed) ; IF: ; Citation:
Confidence