Global methylation changes in aging cells affect cancer risk and tissue homeostasis.
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Suboptimal dietary patterns are associated with accelerated biological aging in young adulthood: A study with twins.
Clin Nutr
December 2024
Faculty of Sport and Health Sciences, Gerontology Research Center, University of Jyväskylä, 40014 Jyväskylä, Finland; The Wellbeing Services County of Central Finland, 40620 Jyväskylä, Finland. Electronic address:
Background & Aims: Suboptimal diets increase morbidity and mortality risk. Epigenetic clocks are algorithms that can assess health and lifespan, even at a young age, before clinical manifestations of diseases. We investigated the association between dietary patterns and biological aging in young adult twins.
View Article and Find Full Text PDFHuman brain aging is associated with dysregulation of cell type epigenetic identity.
Geroscience
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Department of Ecology, Evolution, and Marine Biology, Department of Molecular, Cellular, and Cell Biology, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA.
Significant links between aging and DNA methylation are emerging from recent studies. On the one hand, DNA methylation undergoes changes with age, a process termed as epigenetic drift. On the other hand, DNA methylation serves as a readily accessible and accurate biomarker for aging.
View Article and Find Full Text PDFEpigenetics of Homocystinuria, Hydrogen Sulfide, and Circadian Clock Ablation in Cardiovascular-Renal Disease.
Curr Issues Mol Biol
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Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA.
Morning-time heart attacks are associated with an ablation in the sleep-time dip in blood pressure, the mechanism of which is unknown. The epigenetic changes are the hallmark of sleep and circadian clock disruption and homocystinuria (HHcy). The homocystinuria causes ablation in the dip in blood pressure during sleep.
View Article and Find Full Text PDFAccelerated Epigenetic Aging is Associated with Faster Glaucoma Progression: A DNA Methylation Study.
Ophthalmology
December 2024
John P. Hussman Institute for Human Genomics, University of Miami, FL; Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami, FL.
Purpose: To investigate the association between epigenetic age acceleration and glaucoma progression.
Design: Retrospective cohort study.
Participants: 100 primary open-angle glaucoma (POAG) patients with fast progression and 100 POAG patients with slow progression.
Unlabelled: DNA methylation is an important epigenetic mechanism that helps define and maintain cellular functions. It is influenced by many factors, including environmental exposures, genotype, cell type, sex, and aging. Since age is the primary risk factor for developing neurodegenerative diseases, it is important to determine if aging-related DNA methylation is retained when cells are reprogrammed to an induced Pluripotent Stem Cell (iPSC) state.
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