Evidence map›Paper›PMID 33653394›Full record

ArticleClinical epigenetics2021

Weight management intervention identifies association of decreased DNA methylation age with improved functional age measures in older adults with obesity.

Curtis L Petersen, Brock C Christensen, John A Batsis

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03104192 (Mobile Health Obesity Wellness Intervention in Rural Older Adults), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03104192 nacompletednot on this map

Mobile Health Obesity Wellness Intervention in Rural Older Adults (MOWI): Research Pilot

TypeinterventionalSponsorDartmouth-Hitchcock Medical CenterRan2017 to 2020Enrolled69ConditionsObesityArmsDevelop & Refine MOWI w/o Amulet, MOWI Weight Loss Maintenance, Develop & Refine MOWI w Fitbit, Develop & Refine MOWI w Fitbit/Protein
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Observational
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Curtis L PetersenThe Dartmouth Institute for Health Policy, Williamson Translational Research Bld, 5., 1 Medical Center Drive, Lebanon, NH, 03766, USA. Curtis.L.Petersen.GR@dartmouth.edu.ORCID 0000-0002-7210-447X
Brock C ChristensenDepartment of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA.
John A BatsisThe Dartmouth Institute for Health Policy, Williamson Translational Research Bld, 5., 1 Medical Center Drive, Lebanon, NH, 03766, USA.
Dartmouth College · US

Funding

(PQ3) Immune epigenetic biomarkers of bladder cancer outcomesR01CA216265 · NCI · DARTMOUTH COLLEGE · PI CHRISTENSEN, BROCK CLARKE · 2017 to 2021
$2.9M
Mobile Health Obesity Wellness Intervention in Rural Older Adults_Res1K23AG051681 · NIA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BATSIS, JOHN A. · 2016 to 2022
$1.1M
NCI NIH HHS R01 CA216265NIA NIH HHS K23 AG051681
6 · The paper itself

Abstract

backgroundAssessing functional ability is an important component of understanding healthy aging. Objective measures of functional ability include grip strength, gait speed, sit-to-stand time, and 6-min walk distance. Using samples from a weight loss clinical trial in older adults with obesity, we examined the association between changes in physical function and DNA-methylation-based biological age at baseline and 12 weeks in 16 individuals. Peripheral blood DNA methylation was measured (pre/post) with the Illumina HumanMethylationEPIC array and the Hannum, Horvath, and PhenoAge DNA methylation age clocks were used. Linear regression models adjusted for chronological age and sex tested the relationship between DNA methylation age and grip strength, gait speed, sit-to-stand, and 6-min walk.

resultsParticipant mean weight loss was 4.6 kg, and DNA methylation age decreased 0.8, 1.1, and 0.5 years using the Hannum, Horvath, and PhenoAge DNA methylation clocks respectively. Mean grip strength increased 3.2 kg. Decreased Hannum methylation age was significantly associated with increased grip strength (β = -0.30, p = 0.04), and increased gait speed (β = 0.02, p = 0.05), in adjusted models. Similarly, decreased methylation age using the PhenoAge clock was associated with significantly increased gait speed (β = 0.02, p = 0.04). A decrease in Horvath DNA methylation age and increase in physical functional ability did not demonstrate a significant association.

conclusionsThe observed relationship between increased physical functional ability and decreased biological age using DNA methylation clocks demonstrate the potential utility of DNA methylation clocks to assess interventional approaches to improve health in older obese adults.

trial registrationNational Institute on Aging (NIA), NCT03104192. Posted April 7, 2017, https://clinicaltrials.gov/ct2/show/NCT03104192.

Indexed as

AgedAgingBody Weight MaintenanceCpG IslandsDNA MethylationEpigenomicsFemaleHand StrengthHealthy AgingHumansLinear ModelsMaleObesityPhysical Functional PerformanceWalking SpeedWeight LossAgingAnti-agingDNA methylationFunctional abilityHealthy agingMethylation ageMethylation clock

Identifiers

PMID33653394
PMCPMC7927264
OpenAlexW3134721381

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.