The inactive X chromosome accumulates widespread epigenetic variability with age

Y Liu, L Sinke, TH Jonkman, RC Slieker… - Clinical …, 2023 - Springer
Background Loss of epigenetic control is a hallmark of aging. Among the most prominent
roles of epigenetic mechanisms is the inactivation of one of two copies of the X chromosome …

Ageing-associated changes in DNA methylation in X and Y chromosomes

L Kananen, S Marttila - Epigenetics & chromatin, 2021 - Springer
Background Ageing displays clear sexual dimorphism, evident in both morbidity and
mortality. Ageing is also associated with changes in DNA methylation, but very little focus …

Age‐dependent skewing of X chromosome inactivation appears delayed in centenarians' offspring. Is there a role for allelic imbalance in Healthy Aging and Longevity …

D Gentilini, D Castaldi, D Mari, D Monti… - Aging …, 2012 - Wiley Online Library
Recently, it has been proposed that age‐related X chromosome inactivation (XCI) skewing
can clinically result in late‐onset X‐linked disorders. This observation leads to hypothesize …

Exploratory analysis of age and sex dependent DNA methylation patterns on the X-chromosome in whole blood samples

S Li, JB Lund, K Christensen, J Baumbach… - Genome Medicine, 2020 - Springer
Background Large numbers of autosomal sites are found differentially methylated in the
aging genome. Due to analytical difficulties in dealing with sex differences in X-chromosome …

Age‐dependent DNA methylation patterns on the Y chromosome in elderly males

JB Lund, S Li, K Christensen, J Mengel‐From… - Aging …, 2020 - Wiley Online Library
The Y chromosome, a sex chromosome that only exists in males, has been ignored in
traditional epigenetic association studies for multiple reasons. However, sex differences in …

Age acquired skewed X chromosome inactivation is associated with adverse health outcomes in humans

AL Roberts, A Morea, A Amar, A Zito, JSES Moustafa… - Elife, 2022 - elifesciences.org
Background: Ageing is a heterogenous process characterised by cellular and molecular
hallmarks, including changes to haematopoietic stem cells and is a primary risk factor for …

Landscape of DNA methylation on the X chromosome reflects CpG density, functional chromatin state and X-chromosome inactivation

AM Cotton, EM Price, MJ Jones… - Human molecular …, 2015 - academic.oup.com
X-chromosome inactivation (XCI) achieves dosage compensation between males and
females through the silencing of the majority of genes on one of the female X chromosomes …

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

D Gentilini, P Garagnani, S Pisoni, MG Bacalini… - Aging (Albany …, 2015 - ncbi.nlm.nih.gov
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 …

DNA methylation profiles of human active and inactive X chromosomes

AJ Sharp, E Stathaki, E Migliavacca… - Genome …, 2011 - genome.cshlp.org
X-chromosome inactivation (XCI) is a dosage compensation mechanism that silences the
majority of genes on one X chromosome in each female cell. To characterize epigenetic …

Age‐related DNA methylation on Y chromosome and their associations with total mortality among Chinese males

G Li, C Wang, X Guan, Y Bai, Y Feng, W Wei… - Aging cell, 2022 - Wiley Online Library
In view of the sex differences in aging‐related diseases, sex chromosomes may play a
critical role during aging process. This study aimed to identify age‐related DNA methylation …