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Kininogen-1 (KNG1) is an important pro-inflammatory and pro-oxidant factor, but its precise role in skin aging remains inadequately elucidated. Quantitative 4D proteomic-sequencing analysis identified upregulated KNG1 in 3- and 15-month-old C57BL/6J mouse skin, with immunohistochemical staining corroborating its increase in intrinsic aging. KNG1 overexpression in murine skin reduced dermal thickness, collagen fibre content, elastic fibre density, aging marker Lamin B1, and increased oxidative...

Background and Objectives: With an aging population and growing economic hardship for many older adults, post-retirement work is increasingly common but often challenging due to complex, intersecting factors. This scoping review aims to identify key barriers and facilitators to post-retirement work. Methods: We searched APA PsycINFO, Embase, CINAHL, Scopus, and Web of Science for peer-reviewed studies (2000-2025) on post-retirement work among adults aged 50-80. Eligible studies underwent two...

In multiple sclerosis (MS), chronic compartmentalized inflammation is thought to drive relentless clinical deterioration. Here, we investigate the link between unresolved parenchymal inflammation and cellular senescence in MS progression. Single-cell transcriptomic analysis of human brain tissue reveals an accumulation of senescent-like glial cells in diseased white matter, especially in chronic active lesions, and to a lesser extent in the cortex. Spatial transcriptomics show gradients of...

Electrode corrosion and electrolyte decomposition in aqueous zinc-ion batteries (AZIBs) have significant impacts on their capacity, stability, and lifespan. Herein, a portable extended gate field-effect transistor (EGFET)-pH & dissolved oxygen (DO) sensor is constructed for in-situ monitoring of these adverse reactions in AZIBs. The EGFET-pH & DO sensor separates the sensitive electrodes from the detection circuitry, which gives the sensor high stability in aqueous solutions and enables its...

Aging affects multiple organs and within the brain drives distinct molecular changes across different cell types. The striatum encodes motor behaviors that decline with age, but our understanding of how cells within the striatum change remains incomplete. Using single-cell RNA sequencing from young and aged mice we identify molecularly distinct astrocyte subtypes. We show that astrocytes change significantly with age, exhibiting downregulation of genes, reduced diversity, and a shift to more...

Glycans regulate cellular function, yet how aging affects the glycocalyx remains unclear. Here, we investigate changes in immune cell glycocalyx with age and find that α2,6-linked sialic acid, a glycan epitope associated with inhibitory signaling, is down-regulated in T cells from old animals. This reduction is tightly correlated with age-associated accumulation of effector T cells, which have little to no α2,6-linked sialic acid. To understand how α2,6-linked sialic acid affects T cell...

Lamina-associated domains (LADs) are megabase-sized genomic regions anchored to the nuclear lamina (NL). Factors controlling the interactions of the genome with the NL have largely remained elusive. Here, we identified DNA topoisomerase 2 beta (TOP2B) as a regulator of these interactions. TOP2B binds predominantly to inter-LAD (iLAD) chromatin and its depletion results in a partial loss of genomic partitioning between LADs and iLADs, suggesting that this enzyme might protect specific iLADs from...

CONCLUSIONS: Higher levels of cognitive impairment and older age were associated with a higher probability of having multiple chronic conditions. The study findings highlight the importance of integrative care with cognitive function and age in managing multiple chronic conditions.

Mitochondrial calcium (Ca^(2+)) homeostasis plays a critical role in aging and cellular fitness. In the search for novel antiaging approaches, we explored how genetic and pharmacological inhibition of mitochondrial Ca^(2+) uptake influences the lifespan and health of Caenorhabditis elegans. Using live-cell imaging, we demonstrate that RNA interference-mediated knockdown of mcu-1, the nematode ortholog of the mitochondrial Ca^(2+) uniporter (MCU), reduces mitochondrial Ca^(2+) levels, thereby...

CONCLUSION: Older age and reduced manual dexterity were linked to greater fall risk. These findings suggest that early interventions targeting fine motor skills may help preserve mobility and prevent falls in aging populations.

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Alzheimer's disease involves a drastic departure from the cognitive, functional, and behavioural trajectory of normal ageing, and is both a dreaded and highly prevalent cause of disability to individuals, and a leading source of health and social care expenditure for society. Before the advent of biomarkers, post-mortem examination was the only method available to establish a definitive diagnosis. In this first paper of the Series, we review state-of-the-art diagnostic practices and the typical...