Socioeconomic position, lifestyle habits and biomarkers of epigenetic aging: a multi-cohort analysis.
biological aging
education
epigenetic clocks
socioeconomic position
Journal
Aging
ISSN: 1945-4589
Titre abrégé: Aging (Albany NY)
Pays: United States
ID NLM: 101508617
Informations de publication
Date de publication:
14 04 2019
14 04 2019
Historique:
received:
16
11
2018
accepted:
31
03
2019
entrez:
23
4
2019
pubmed:
23
4
2019
medline:
27
5
2020
Statut:
ppublish
Résumé
Differences in health status by socioeconomic position (SEP) tend to be more evident at older ages, suggesting the involvement of a biological mechanism responsive to the accumulation of deleterious exposures across the lifespan. DNA methylation (DNAm) has been proposed as a biomarker of biological aging that conserves memory of endogenous and exogenous stress during life.We examined the association of education level, as an indicator of SEP, and lifestyle-related variables with four biomarkers of age-dependent DNAm dysregulation: the total number of stochastic epigenetic mutations (SEMs) and three epigenetic clocks (Horvath, Hannum and Levine), in 18 cohorts spanning 12 countries.The four biological aging biomarkers were associated with education and different sets of risk factors independently, and the magnitude of the effects differed depending on the biomarker and the predictor. On average, the effect of low education on epigenetic aging was comparable with those of other lifestyle-related risk factors (obesity, alcohol intake), with the exception of smoking, which had a significantly stronger effect.Our study shows that low education is an independent predictor of accelerated biological (epigenetic) aging and that epigenetic clocks appear to be good candidates for disentangling the biological pathways underlying social inequalities in healthy aging and longevity.
Identifiants
pubmed: 31009935
doi: 10.18632/aging.101900
pii: 101900
pmc: PMC6503871
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
2045-2070Subventions
Organisme : NIEHS NIH HHS
ID : R00 ES023450
Pays : United States
Organisme : Medical Research Council
ID : MR/L01632X/1
Pays : United Kingdom
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