Aging & Longevity

CONCLUSION: The results of this study showed that holding group poetry reading sessions can promote meaning in life, especially in the domain of "searching for meaning" among the elderly. But results showed no significant difference between the two groups' Subjective Vitality mean scores after the intervention. Therefore, holding such classes in elderly day care centers or nursing homes are recommended to improve meaningful life in the elderly.

CONCLUSIONS: Adherence in later life reflects how older adults position themselves toward self‑care in the face of vulnerability, changing identities, and real‑world constraints. Clinical practice may benefit from linking recommendations to what matters most to patients, simplifying regimens, strengthening relational support, and addressing structural barriers. Tailoring care to patients' life contexts may foster more sustainable and meaningful engagement with treatment.

CONCLUSIONS: Immune-inflammatory and nutritional status mediate age-dependent survival disparities in older NPC patients. These findings underscore the clinical imperative of addressing inflammatory burden and nutritional depletion in geriatric oncology and advocate for integrated biomarker-guided management strategies.

Mitochondria and inflammation are tightly linked in aging and Alzheimer's disease (AD), and recent evidence implicates mitochondrial double-stranded RNA (mt-dsRNA) as a potential trigger of inflammation. We examined mt-dsRNA accumulation and dsRNA signaling in brain aging and AD using complementary human brain tissue and in vitro transcriptomic datasets by quantifying mitochondrial transcripts, dsRNA editing, and related gene expression patterns. We found that mt-dsRNA signatures increased after...

INTRODUCTION: Precise regulation of grip forces is fundamental for skilled object manipulation and independent navigation of everyday activities throughout the lifespan. Maximal grip strength is a widely used biomarker of aging and frailty, but it provides limited insight into the temporal and inhibitory control mechanisms required for dexterous prehension. Evidence suggests that grip-force release, which requires integration of sensory feedback and inhibition of sustained grip, may be...

Human aging is a heterogeneous, multi-system process that spans molecular, tissue, and physiological decline. In this issue of Cell, Li et al. integrate clinical data, multi-omics, and organ-associated signatures to construct a multi-layer framework for quantifying biological aging across scales.

CONCLUSIONS: Irisin represents a promising link between muscle-derived signaling and immune resilience. While clinical application is currently hindered by assay variability and a need for larger human cohorts, its role in modulating both immunosenescence and acute sepsis pathophysiology marks it as a possible prognostic biomarker and a potential therapeutic target in the vulnerable aging population.

BACKGROUND: Chronic low-grade inflammation ("inflammaging") is a key driver of age-related pathologies including cardiovascular disease, neurodegeneration, and metabolic syndrome. Diet plays a dual role in modulating this process, acting both as a source of pro-inflammatory molecular patterns and as a delivery system for geroprotective compounds.

There are extensive ongoing efforts to slow or even reverse human aging, such as with epigenetic cellular reprogramming, thymus rejuvenation or senolytics. In parallel, new and diverse metrics-known as biological clocks-have been discovered and shown to track the pace of aging in an individual and their organs, tissues and cells. These clocks have multiple potential use cases, including identifying people at high risk of disease, serving as a foundation for prevention or early detection, and...

No abstract

Polycrystalline ice formation concentrates mineral nanoparticles into liquid boundaries between growing ice crystals. Here we show that minutes of freezing dictate iron mineral fate over subsequent months of aqueous aging. A single freeze-thaw cycle irreversibly aggregates ferrihydrite through converging physical and chemical mechanisms. Freeze concentration collapses electrostatic barriers while cryosuction strips hydration layers and compresses nanoparticles into micrometer-scale planar...

Disruption of proteostasis is a hallmark of aging. Given that cellular resources are limited, this necessitates a coordinated orchestration of different proteostatic subsystems. Yet, the principles governing this process, including the potential role of trade-offs, are not well defined. Here, we report a trade-off between the endoplasmic reticulum unfolded protein response (UPR^(ER)) and the cytosolic UPR (UPR^(cyto)) in C. elegans that influences lifespan. We find that wild-type animals...

DNA methylation-based epigenetic clocks have been highlighted as promising biomarkers of ageing, and they have been shown to robustly predict morbidity and mortality. However, current literature is lacking a formal analysis of the increased prediction accuracy, or the added value, of the epigenetic clocks over traditional risk factors, such as body composition, smoking, or alcohol consumption, in predicting common chronic diseases. Here, we have compared the most commonly used epigenetic clocks...

Aging is accompanied by widespread remodeling of DNA methylation (DNAm), which can be leveraged to build epigenetic clocks. In mice, most DNAm clocks rely on internal organs or terminal tissues, limiting longitudinal studies. Here, we compared age-associated DNAm patterns in matched blood and tail-an easily accessible but underexplored tissue-and evaluated both as substrates for tissue-specific DNAm age prediction. Matched blood and tail were collected from male C57BL/6N Per2::Luc mice aged...

CONCLUSIONS: The UMNs of the older adults and the potential threat to inequalities require the attention of policymakers. Interventions should focus on improving access to medical services, with a particular emphasis on addressing the needs of vulnerable populations.

No abstract

The incidence of neurodegenerative diseases, including Alzheimer's disease (AD), continues to increase with the extension of human lifespan. However, their pathogenesis remains incompletely understood. Altered energy metabolism, particularly glucose metabolism involving glycolysis and oxidative phosphorylation, is widely recognized as an early pathological feature of neurodegenerative diseases. Astrocytes, the most numerous and widely distributed functional cells in the central nervous system...

Age-related macular degeneration (AMD) is a degenerative retinal disease initiated by dysfunction of the retinal pigment epithelium (RPE), in which age-related mitochondrial impairment, oxidative stress, chronic inflammation, and complement activation collectively drive outer retinal dysfunction and RPE atrophy, ultimately leading to progressive central vision loss. Accumulating evidence indicates that mitochondrial abnormalities, including excessive reactive oxygen species (ROS) production,...

Alzheimer's disease (AD) is characterized by neuroinflammation, yet the impact of concurrent systemic infections on the AD brain remains poorly understood. We investigated the molecular mechanisms underlying the central nervous system response to systemic infections in AD by analyzing RNA sequencing data generated in the prefrontal cortex from 202 post-mortem donors (113 AD, 89 controls), where we stratified by the presence of a respiratory infection at the time of death. We identified 763...

CONCLUSION: Based on our data, GrimAgeAcc is associated with ARHL and systemic age-related diseases (dementia, CVD, diabetes), potentially through shared biological pathways (e.g., endocytosis, lysosomal, inflammatory). Chronological age explains 28-50% of these associations, yet ARHL remains independently associated with all three outcomes after age adjustment. The cochlea may be vulnerable, but causal evidence is lacking. All findings are hypothesis-generating and require experimental...