Epigenetic clock

Papers on epigenetic clock

1,667 papers43 new in 30 days

Wednesday, October 21

Clinical Epigenetics

Blood fat links to DNA marks replicated in Korean adults

Links at five previously identified DNA sites were confirmed in two additional Korean groups of 389 and 417 adults.Links at five previously identified DNA sites were confirmed in two additional Korean groups of 389 and 417 adults.

Figure from Clinical Epigenetics
Cross-sectional · 1,527 peopleBiomarkers

Tuesday, October 20

Diabetes

DNA-based aging linked to kidney disease in type 1 diabetes

An observational study using 10 DNA-based aging measures in two cohorts of people with type 1 diabetes linked several measures to kidney disease and its progression.An observational study using 10 DNA-based aging measures in two cohorts of people with type 1 diabetes linked several measures to kidney disease and its progression.

A scarred kidney cross-section with protein clusters sits beside an intact kidney, surrounded by chromatin fibers with dark marks and pale ends.
Cohort studyType 1 diabetes
SSM - Population Health

Moderate helping linked to slower aging measures in the US

In US participants, formal volunteering and informal helping for 1–99 hours a year were associated with slower aging on several DNA-based measures.In US participants, formal volunteering and informal helping for 1–99 hours a year were associated with slower aging on several DNA-based measures.

Informal helping, formal volunteering, and epigenetic age acceleration in the HRS (N = 3919).
Cohort · 3,919 peoplePopulations

Thursday, October 15

Tuesday, October 13

SSM - Population Health

Biological aging differed by race within similar work histories

In an observational study of 1,861 adults, employment patterns from ages 18 to 50 were largely unrelated to DNA-based measures of accelerated aging.In an observational study of 1,861 adults, employment patterns from ages 18 to 50 were largely unrelated to DNA-based measures of accelerated aging.

Employment trajectories between ages 18–50 (N = 2147).
Cross-sectional · 1,861 peoplePopulations
bioRxiv

Ovarian age measures partly shift towards host age in mice

Transplanting ovaries between younger and older mice shifted molecular age estimates in both directions, but the changes remained partial.Transplanting ovaries between younger and older mice shifted molecular age estimates in both directions, but the changes remained partial.

An ovary-specific transcriptomic clock and multi-omic measures of ovarian aging.
Preprint: mouse studyReproductive system

Saturday, October 10

Friday, October 9

Aging Cell

Anti-aging clock results often fail across multiple models

When researchers applied extra biological age clocks to previously tested anti-aging treatments, no additional clock showed a statistically meaningful effect.When researchers applied extra biological age clocks to previously tested anti-aging treatments, no additional clock showed a statistically meaningful effect.

Epigenetic clock models measuring three different aging interventions.
Computational studyBiomarkers
Research Square

Estimated brain-age gap rises by three years in pregnancy

Brain-age gap estimates rose by about three years during pregnancy and fell below pre-conception levels by 16 months postpartum in a longitudinal study.Brain-age gap estimates rose by about three years during pregnancy and fell below pre-conception levels by 16 months postpartum in a longitudinal study.

Brain cross-sections appear dark blue-green above a pregnant woman and pale blue above a woman holding a toddler’s hand.
Preprint: cohort study of 340 peoplePopulations

Thursday, October 8

Science

Epigenetic aging runs faster in larger and male dogs

An epigenetic clock built from 894 domestic dogs predicted mortality and linked faster biological aging to larger body size and male sex.An epigenetic clock built from 894 domestic dogs predicted mortality and linked faster biological aging to larger body size and male sex.

Chromatin fibers with dense black methyl marks beneath a large dog contrast with a smaller, sparsely marked fiber beside a small dog.
Study of 894 dogsBiomarkers

Tuesday, October 6

medRxiv

Hormone therapy linked to lower breast cancer mortality

Compared with never-users, hormone therapy ever-users had adjusted hazard ratios, which compare event rates over time, of 0.72 for breast cancer death and 1.17 for…Compared with never-users, hormone therapy ever-users had adjusted hazard ratios, which compare event rates over time, of 0.72 for breast cancer death and 1.17 for diagnosis.

Study design and participant flow.
Preprint: cohort study of 78,209 peopleBreast cancer

Monday, October 5

bioRxiv

Disease mutations shift epigenetic age in organoids

In a preprint using iPSC-derived organoids, serial passaging re-established aging trajectories while disease-associated mutations drove additional cell-intrinsic shifts…In a preprint using iPSC-derived organoids, serial passaging re-established aging trajectories while disease-associated mutations drove additional cell-intrinsic shifts in epigenetic age.

Epigenetic age is reset during iPSC reprogramming and re-accumulates in alveolosphere organoids over extended culture.
Preprint: experiments in human cellsEpigenetic age

Friday, October 2

bioRxiv

Early life stress accelerates epigenetic aging in zebra finches

Corticosterone treatment shifts DNA methylation profiles in young chicks toward those of older birds and reshapes longevity pathways.Corticosterone treatment shifts DNA methylation profiles in young chicks toward those of older birds and reshapes longevity pathways.

Data structure and RRBS-based clock construction.
Preprint: experiments in zebra finchesMechanisms

Thursday, October 1

medRxiv

Epigenetic puberty index tracks biological aging and adult health risks

A DNA-methylation measure of pubertal development correlates with established epigenetic clocks and predicts mortality and disease in two large adult cohorts.A DNA-methylation measure of pubertal development correlates with established epigenetic clocks and predicts mortality and disease in two large adult cohorts.

Graphical abstract of the study design.
Preprint: cohort study of 18,676 peopleBiomarkers

Wednesday, September 30

Journal of the National Cancer Institute

Exercise linked to slower epigenetic aging in breast cancer survivors

In a randomized trial of 124 breast cancer survivors, a 12-month exercise intervention slowed epigenetic aging measured by GrimAge2 and DNAmFitAge compared to a wellness…In a randomized trial of 124 breast cancer survivors, a 12-month exercise intervention slowed epigenetic aging measured by GrimAge2 and DNAmFitAge compared to a wellness control.

Figure from Journal of the National Cancer Institute
Randomized trial in 124 peopleExercise

Tuesday, September 29

medRxiv

Accelerated epigenetic aging predicts major depression and brain changes after trauma

Emergency department measurements of GrimAge and DunedinPACE biological aging markers tracked subsequent depressive symptoms and neural connectivity shifts in adults over…Emergency department measurements of GrimAge and DunedinPACE biological aging markers tracked subsequent depressive symptoms and neural connectivity shifts in adults over 35.

Workflow of AURORA study procedures.
Preprint: cohort study of 706 peopleGrimAge

Saturday, September 26

GeroScience

Diet benefits for epigenetic aging may reflect familial factors

In Danish twins, adherence linked cross-sectionally to slower DunedinPACE, but within-pair and longitudinal analyses attenuated the associations over 12 years.In Danish twins, adherence linked cross-sectionally to slower DunedinPACE, but within-pair and longitudinal analyses attenuated the associations over 12 years.

Figure from GeroScience
Cohort study in peoplePopulations

Friday, September 25