Evidence map›Paper›PMID 26342808›Full record

ArticleAging2015

Stochastic epigenetic mutations (DNA methylation) increase exponentially in human aging and correlate with X chromosome inactivation skewing in females.

Davide Gentilini, Paolo Garagnani, Serena Pisoni, Maria Giulia Bacalini, Luciano Calzari, Daniela Mari, Giovanni Vitale, Claudio Franceschi, Anna Maria Di Blasio

Abstract read
In one paragraph

Article in Aging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing 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

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

  1. Pooled it
  2. Trial
  3. Fluorescent Analysis of KBiomolecules · 2026
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  19. Methods in DNA methylation array dataset analysis: A review.Computational and structural biotechnology journal · 2024
    Review
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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.

Davide GentiliniIstituto Auxologico Italiano IRCCS, Cusano Milanino, 20095 Milan, Italy.
Paolo GaragnaniDepartment of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum- University of Bologna, Bologna 40138, Italy.
Serena PisoniIstituto Auxologico Italiano IRCCS, Cusano Milanino, 20095 Milan, Italy.
Maria Giulia BacaliniDepartment of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum- University of Bologna, Bologna 40138, Italy.
Luciano CalzariIstituto Auxologico Italiano IRCCS, Cusano Milanino, 20095 Milan, Italy.
Daniela MariGeriatric Unit, IRCCS Ca' Granda Foundation Maggiore Policlinico Hospital, Milan, Italy.
Giovanni VitaleIstituto Auxologico Italiano IRCCS, Cusano Milanino, 20095 Milan, Italy.
Claudio FranceschiDepartment of Experimental, Diagnostic and Specialty Medicine, Alma Mater Studiorum- University of Bologna, Bologna 40138, Italy.
Anna Maria Di BlasioIstituto Auxologico Italiano IRCCS, Cusano Milanino, 20095 Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study we applied a new analytical strategy to investigate the relations between stochastic epigenetic mutations (SEMs) and aging. We analysed methylation levels through the Infinium HumanMethylation27 and HumanMethylation450 BeadChips in a population of 178 subjects ranging from 3 to 106 years. For each CpG probe, epimutated subjects were identified as the extreme outliers with methylation level exceeding three times interquartile ranges the first quartile (Q1-(3 x IQR)) or the third quartile (Q3+(3 x IQR)). We demonstrated that the number of SEMs was low in childhood and increased exponentially during aging. Using the HUMARA method, skewing of X chromosome inactivation (XCI) was evaluated in heterozygotes women. Multivariate analysis indicated a significant correlation between log(SEMs) and degree of XCI skewing after adjustment for age (β = 0.41; confidence interval: 0.14, 0.68; p-value = 0.0053). The PATH analysis tested the complete model containing the variables: skewing of XCI, age, log(SEMs) and overall CpG methylation. After adjusting for the number of epimutations we failed to confirm the well reported correlation between skewing of XCI and aging. This evidence might suggest that the known correlation between XCI skewing and aging could not be a direct association but mediated by the number of SEMs.

Indexed as

DNA MethylationEpigenesis, GeneticMutationX Chromosome InactivationAdolescentAdultAgedAged, 80 and overAgingBody Mass IndexChildChild, PreschoolChromosomes, Human, XFemaleHumansMiddle AgedagingDNA methylationepigeneticsepimutationsX chromosome inactivation skewing

Identifiers

PMID26342808
PMCPMC4586102

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

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.