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MskAge-An Epigenetic Biomarker of Musculoskeletal Age Derived From a Genetic Algorithm Islands Model

4 months 2 weeks ago
Age is a significant risk factor for functional decline and disease of the musculoskeletal system, yet few biomarkers exist to facilitate ageing research in musculoskeletal tissues. Multivariate models based on DNA methylation, termed epigenetic clocks, have shown promise as markers of biological age. However, the accuracy of existing epigenetic clocks in musculoskeletal tissues are no more, and often less accurate than a randomly sampled baseline model. We developed a highly accurate epigenetic...
Daniel C Green

The aging self: how older men and women reflect on themselves and others

4 months 2 weeks ago
OBJECTIVES: Self-relevant stimuli, such as one’s name or face, are prioritised by the brain, leading to faster responses and enhanced attentional processes. The psychophysiological underpinnings of those mechanisms are related to early and late event-related potential (ERP) components, particularly to reduced N2 and enhanced late positive potential (LPP). However, most up-to-date research on the self has focused on groups of young adults while older groups were rarely recruited for such...
Marta Paź

Socioeconomic Factors Influencing the Growth and Sustainability of the Village Movement

4 months 2 weeks ago
This study offers the first in-depth analysis of the Village Movement since its launch in 2002, examining the socioeconomic and institutional factors behind the growth and sustainability of Villages, community-based organizations that support aging in place. Using a mixed-methods approach, the research combines survey data, case studies, interviews, field observations, and regression analysis. Findings show that Villages are grassroots' responses to the breakdown of traditional social networks...
Yi-Ting Chiu

Age-Related Complement C3 Drives Memory Impairments and Associated Neuropathologies in a Mouse Model

4 months 2 weeks ago
Aging is the greatest risk factor for learning and memory disorders; dementia prevalence significantly increases with age due to numerous molecular changes in the body. Although research has consistently shown that aging leads to learning and memory impairments, the molecular mechanisms linking aging to these cognitive deficits remain incompletely understood. Previous studies have revealed that complement C3 levels increase with age in humans, monkeys, and mice; elevated C3 expression is also...
Miaomiao Du

The impact of dietary restriction on transcriptional profiles of hematopoietic stem cells in aged female mice

4 months 2 weeks ago
This study investigates the impact of dietary restriction (DR) on gene expression in hematopoietic stem cells (HSCs) derived from aged mice. RNA sequencing (RNA-seq) data were obtained from sorted HSCs, followed by weighted gene co-expression network analysis (WGCNA) to identify differentially expressed genes (DEGs) and key transcriptional modules. Principal component analysis (PCA) and heatmaps revealed significant differences between the groups, highlighting a predominant upregulation of gene...
Chenghui Yu

Cognitive decline before and after incident chronic respiratory disease

4 months 2 weeks ago
Few studies have comprehensively measured the changes in cognition occurring in the years before and after the onset of specific respiratory disease type, which could help tailor the timing and design of future intervention strategies. Here we aimed to explore the temporal pattern of cognitive change before and after incident COPD and asthma. Data from wave 1 to wave 9 (2002-2018) of the English Longitudinal Study of Ageing were used. Global cognition, assessed by orientation, memory, and...
Xiaoli Ji