Aging & Longevity
Longevity is a political concern
No abstract
Mapping cellular senescence in heart failure: knowledge evolution, mechanistic modules, and senotherapeutic opportunities
CONCLUSION: Bibliometric and semantic analyses indicate growing research interest in cell-type-specific senescence, inflammatory-fibrotic remodelling, HF phenotype heterogeneity, biomarkers, and senotherapeutics. These findings highlight opportunities for integrating mechanistic research with clinical investigation. Future studies should prioritize cell-specific senescence atlases, multidimensional biomarkers, comorbidity-aware HF stratification, and cautious evaluation of senotherapeutics in HF...
What Geriatrics Could Learn From the History of Psychiatry
Global health policies and the World Health Organization consistently promote aging in place, reflecting the strong preference of older adults to remain in their home environments. Yet frailty, cognitive decline, caregiver exhaustion, and social vulnerability frequently make nursing home admission necessary and position institutional care as the default response to severe dependency. The COVID-19 pandemic exposed vulnerabilities of nursing home care and renewed debate about the sustainability of...
Mechanistic insights into age- and vascular-related microstructure differences in the corpus callosum using biophysical modeling of diffusion MRI
Corpus callosum microstructure is a proposed risk biomarker for vascular contributions to cognitive impairment. This study compared corpus callosum microstructure measures from the "Standard Model" biophysical diffusion model with diffusion tensor and kurtosis imaging (DTI, DKI) measures for differences related to age and cerebral small vessel disease (cSVD) in a population-based sample of cognitively unimpaired older adults (n = 112, mean age 69.9). Standard Model measures included axonal water...
Taurine lowers inflammaging by regulating the NLRP3 inflammasome in macrophages
Whether a decline in taurine drives aging is debated, and despite high millimolar intracellular concentrations, its function as a potential guardian of cytosolic homeostasis is unclear. Here, we show that aging increases circulating taurine concentrations in humans and mice. Further elevating taurine in aged mice enhances health span, engaging anti-inflammatory pathways previously linked to youthfulness, and reduces mortality from sepsis and inflammasome-mediated inflammation, suggesting an...
Dynamic force sensing by bone delays aging and extends lifespan
Physical activity promotes health primarily by decelerating the aging process. Bone is one of the tissues capable of sensing mechanical force and can adapt to different physical demands. However, its role in whole-body aging is unknown. We found that reduced mechano-sensing in osteocytes, caused by deletion of the mechanosensory channel, Piezo1, accelerated whole-body aging in mice. Dynamic tibial axial loading (DTAL) in mice at 20-24 months of age extended both healthspan and lifespan...
Neurodegeneration in Sub-Saharan Africa: Intersections of Biological Ageing, Genomic Diversity and the Lifetime Exposome
Neurodegenerative diseases are emerging as an important consequence of population ageing in sub-Saharan Africa (SSA), but their scientific relevance extends beyond a projected rise in case numbers. SSA combines exceptional human genomic diversity with marked heterogeneity in vascular and metabolic risk, infection, nutrition, occupational exposures, air pollution, and access to health care. This combination creates an underused setting in which to study why biological ageing produces...
Human serum collected after fermented whey protein supplementation stimulates myocellular growth and protein synthesis: A randomized, double-blind, active-controlled crossover trial
CONCLUSIONS: The present findings may provide mechanistic insights into the development of nutritional strategies to attenuate age-associated anabolic resistance and improve skeletal muscle oxidative metabolic function.
A study protocol of fasting to provide energy needed to help adults in need of cognitive enhancement (Fasting ENHANCE)
CONCLUSION: The Fasting ENHANCE study protocol outlines the methodology for evaluating the effect of TRE on cognitive and metabolic health in older adults with SCD. Results will inform future nonpharmacological interventions aimed at attenuating cognitive decline.
Neoadjuvant chemotherapy interferes with tertiary lymphoid structure formation in Epstein-Barr virus-associated gastric cancer
Epstein-Barr virus (EBV)-associated gastric cancer (EBVaGC) is a molecularly distinct, highly immunogenic gastric cancer subtype, yet the role of tertiary lymphoid structure (TLS) during therapy remains unclear. Using a large locally advanced EBVaGC cohort (144 samples), combined with spatial transcriptomics (11 samples) and a single-cell atlas (77 samples), we show that EBVaGC exhibits enhanced TLS formation compared with EBV-negative gastric cancer, with invasive-margin TLS (IM-TLS) predicting...
TP53 mutations drive therapy resistance through post-mitochondrial caspase blockade
Acute myeloid leukemia (AML) is a heterogeneous disease characterized by a broad spectrum of molecular alterations that influence clinical outcomes. TP53 mutations define one of the most lethal subtypes of AML, driving resistance to nearly all available treatment modalities, including venetoclax plus azacitidine (VenAza). Yet, the molecular basis of this resistance, beyond affecting transactivation of BCL-2 family genes, has remained elusive. Here, we demonstrate that VenAza treatment leads to...
Multiscale evaluation of collagen-stimulating materials: linking physicochemical properties to dermal regeneration outcomes
Biostimulatory dermal fillers are widely used for skin rejuvenation, but how particle physicochemical properties regulate fibroblast-macrophage interactions and collagen remodeling remains unclear. We compared calcium hydroxylapatite (CaHA), polycaprolactone (PCL), spherical poly-L-lactic acid (PLLA-Sp), and irregular PLLA fragments (PLLA-Ir) through comprehensive characterization (SEM, FTIR, zeta potential, AFM, roughness, tapped density, rheology in HA matrices) along with in vitro (human...
Inducible chronic NAD deficiency in mice reveals multi-systemic phenotypical, metabolic, and transcriptional changes
Nicotinamide adenine dinucleotide (NAD) is a metabolic cofactor regulating energy metabolism, epigenetics, DNA repair, and signaling. Although NAD declines with vitamin B3 deficiency, disease, and aging, systemic consequences of chronic depletion remain unclear. Here, we characterize an in vivo model of inducible NAD deficiency using acquired niacin dependency (ANDY) mice, in which NAD synthesis becomes dependent on dietary niacin. On a niacin-free diet, ANDY mice developed widespread tissue NAD...
Communicating the Geriatrician's Brand in Age-Friendly Care
The implementation of CMS age-friendly care initiatives has created new opportunities for geriatricians to shape clinical care, quality improvement, education, and health system strategy. A geriatrician's unique contribution extends beyond managing medical complexity; it lies in applying expertise in aging physiology, functional change, psychosocial context, heterogeneity, prognosis, patient priorities, and ageism to clinical and organizational decision-making. Geriatrics expertise must be...
Proxy indicators to support independent ageing-in-place in older people with frailty: a Delphi-style expert consultation survey
CONCLUSIONS: This study lays the foundation for developing standardised proxy ageing-in-place indicators to monitor how older people with or at risk of frailty are living in their homes and communities. Future directions include assessing feasibility of capturing non-clinical indicators routinely; applying these indicators to guide personalised targeted interventions; and leveraging technology-related indicators to improve digital inclusion and literacy in older people to support...
When widowhood meets hospitalisation risk: the dynamic, time-dependent association in older adults
CONCLUSIONS: Widowhood exerts a significant positive impact on hospitalization risk among Chinese older adults, with heterogeneous effects across cohorts and calendar time and an immediate but non-persistent dynamic pattern. These findings highlight the need for targeted interventions, particularly during the immediate year following spousal loss and for specific high-risk cohorts. Practical steps include enhancing family-based health management support and optimizing healthcare accessibility...
Functional fitness, perceived barriers and exercise health belief domains as correlates of physical activity in older adults attending a Third Age University: a cross-sectional study
CONCLUSIONS: In this selected sample, functional fitness, particularly aerobic endurance and lower-limb flexibility, accounted for the largest share of explained variance, whereas EHBMS-assessed beliefs added negligible variance. Because no analysis formally compared predictor domains, this reflects relative incremental contribution, not a tested difference. The null belief findings warrant caution because self-efficacy was unmeasured and several subscales showed ceiling effects.
Live Fast, Die Old: Lowering Insulin Signalling During Development Can Speed Growth, Increase Reproduction and Lifespan, but Impair Environmental Sensing and Harm Offspring in Caenorhabditis elegans
Genetic trade-offs can constrain life-history evolution resulting in the evolution of ageing. Reduced insulin/insulin-like signalling (rIIS) improves somatic maintenance and dramatically increases lifespan in Caenorhabditis elegans, but the effects on fitness are unclear. Here we used a novel experimental approach to show that, contrary to the prevailing paradigm, rIIS via daf-2 RNAi during development can improve development, reproduction, survival, individual fitness, and population growth...
Lessons from dog lifespan therapeutics for their human companions
The growing evidence that existing cardio-renal-metabolic therapies, such as GLP-1 receptor agonists and SGLT2 inhibitors, confer all-cause mortality benefits has positioned them as the first wave of potential gerotherapeutics. However, repurposing these drugs for a lifespan extension indication remains constrained by trial duration, misaligned incentives, and the lack of a viable regulatory path. We highlight two parallel strategies to address these barriers: (1) identifying and validating...
Correction to: Effect of Nrf2 loss on senescence and cognition of tau-based P301S mice
No abstract
Aging and Longevity: Latest results from PubMed
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