Evidence map›Paper›PMID 34565328›Full record

ArticleBMC genomics2021

Accelerated hematopoietic mitotic aging measured by DNA methylation, blood cell lineage, and Parkinson's disease.

Kimberly C Paul, Alexandra M Binder, Steve Horvath, Cynthia Kusters, Qi Yan, Irish Del Rosario, Yu Yu, Jeff Bronstein, Beate Ritz

Abstract read
In one paragraph

Article in BMC genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

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

  1. Pooled it
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  5. Epigenetic ageing and the risk of Parkinson's disease.Journal of neurology, neurosurgery, and psychiatry · 2026
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  17. International journal of molecular sciences · 2022
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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

9 authors.

Kimberly C PaulDepartment of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA. kimberlp@ucla.edu.
Alexandra M BinderPopulation Sciences in the Pacific Program, University of Hawaii Cancer Center, Honolulu, Hawaii, USA.
Steve HorvathDepartment of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
Cynthia KustersDepartment of Human Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
Qi YanDepartment of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA.
Irish Del RosarioDepartment of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA.
Yu YuDepartment of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA.
Jeff BronsteinDepartment of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.
Beate RitzDepartment of Neurology, David Geffen School of Medicine at UCLA, Los Angeles, California, USA.

Funding

Center for Gene-Environment Studies in Parkinson DiseaseU54ES012078 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CHESSELET, MARIE-FRANCOISE S · 2002 to 2006
$7.1M
PARKINSON'S DISEASES SUSCEPTIBILITY GENES AND PESTICIDESR01ES010544 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2000 to 2015
$5.7M
Microbiome, Pesticides and Parkinsons in LatinosR01ES031106 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2020 to 2025
$3.8M
Validation and optimization of epigenetic clocksU01AG060908 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2018 to 2022
$3.4M
Immune System Aging in Parkinson’s and Alzheimer’s disease: Epigenetics, biologic aging, and heightened immune states in a population-based studyK01AG072044 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI PAUL, KIMBERLY · 2021 to 2025
$717k
Environment, Metabolomics, and PDR21ES030175 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI RITZ, BEATE R. · 2019 to 2020
$443k
Environmental exposure, DNA methylation, and Parkinson's diseaseR21ES024356 · NIEHS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HORVATH, STEVE, RITZ, BEATE R. · 2014 to 2015
$424k
NIA NIH HHS K01 AG072044NIA NIH HHS K01AG072044NIA NIH HHS U01 AG060908NIEHS NIH HHS 2R01ES010544NIEHS NIH HHS R01 ES010544NIEHS NIH HHS R01 ES031106NIEHS NIH HHS R21 ES024356NIEHS NIH HHS R21ES024356NIEHS NIH HHS R21 ES030175NIEHS NIH HHS U54 ES012078NIEHS NIH HHS U54ES012078
6 · The paper itself

Abstract

backgroundAging and inflammation are important components of Parkinson's disease (PD) pathogenesis and both are associated with changes in hematopoiesis and blood cell composition. DNA methylation (DNAm) presents a mechanism to investigate inflammation, aging, and hematopoiesis in PD, using epigenetic mitotic aging and aging clocks. Here, we aimed to define the influence of blood cell lineage on epigenetic mitotic age and then investigate mitotic age acceleration with PD, while considering epigenetic age acceleration biomarkers.

resultsWe estimated epigenetic mitotic age using the "epiTOC" epigenetic mitotic clock in 10 different blood cell populations and in a population-based study of PD with whole-blood. Within subject analysis of the flow-sorted purified blood cell types DNAm showed a clear separation of epigenetic mitotic age by cell lineage, with the mitotic age significantly lower in myeloid versus lymphoid cells (p = 2.1e-11). PD status was strongly associated with accelerated epigenetic mitotic aging (AccelEpiTOC) after controlling for cell composition (OR = 2.11, 95 % CI = 1.56, 2.86, p = 1.6e-6). AccelEpiTOC was also positively correlated with extrinsic epigenetic age acceleration, a DNAm aging biomarker related to immune system aging (with cell composition adjustment: R = 0.27, p = 6.5e-14), and both were independently associated with PD. Among PD patients, AccelEpiTOC measured at baseline was also associated with longitudinal motor and cognitive symptom decline.

conclusionsThe current study presents a first look at epigenetic mitotic aging in PD and our findings suggest accelerated hematopoietic cell mitosis, possibly reflecting immune pathway imbalances, in early PD that may also be related to motor and cognitive progression.

Indexed as

AgingParkinson DiseaseBlood CellsCell LineageDNA MethylationEpigenesis, GeneticHumansDNA methylationEpigeneticsMitotic AgeParkinson’s DiseaseProgression

Identifiers

PMID34565328
PMCPMC8474781

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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.