Aging & Longevity

CONCLUSION: Our findings suggest a bidirectional relationship between MetS and EAA, with biological aging potentially mediating metabolic deterioration. EAA may serve as both a marker and mediator of metabolic health, and a promising target for prevention and intervention.

Insulin action on the skeleton is essential for bone development and whole-body energy metabolism, however a global view of signaling in this tissue is lacking. Furthermore, whether there are signaling differences that drive the gene-specific activation under insulin-resistant (IR) or ageing conditions is unknown. Here, we perform a phosphoproteomic analysis of insulin signaling in the bones of young, lean, insulin-sensitive versus old, obese, IR mice revealing a rewiring of phosphorylation. We...

Anopheles gambiae is one of the principal vectors of human malaria. Over the past two decades, transgenic mosquito strains have been essential tools for studying mosquito biology and developing genetic control strategies such as gene drives. Mosquito transformants are typically identified using fluorescent markers, which are assumed to be phenotypically neutral. While generating CRISPR-based gene drive strains carrying an OpIE2-DsRed marker we unexpectedly found that transgenic females were...

CONCLUSIONS: ε4 contributes to literacy decline among older adults, presumably due in part to the accumulation of neuropathologies associated with ε4. We discuss the potential clinical implications of ε4-related literacy decline.

CONCLUSIONS: A decision support tool for caregivers of PLwD that provides education about transitions in care site, along with support for the emotional aspects of decision making, is highly acceptable and supports caregivers' ability to engage with what can be a challenging topic.

CONCLUSIONS: In the Rugao Aging Cohort, significant gender differences of thickness of all macular layers between males and females were identified, with males exhibiting thicker inner rings and thinner outer rings compared to females. Notably, cognitive decline was associated with the thinning of the central part and inner ring of macula exclusively in females. These results suggest that when macular thickness is used as a risk marker for cognitive decline, its gender bias should be carefully...

Memory functions are susceptible to age-related cognitive decline, making it essential to explore the underlying neurophysiological mechanisms that contribute to memory function during healthy ageing. Resting-state EEG (rsEEG) parameters, particularly the aperiodic exponent, a marker of cortical excitation-inhibition balance, and individual alpha peak frequency, a correlate of neural processing efficiency, have demonstrated associations with ageing and cognitive functions. This study...

Aging is a progressive process characterized by cellular and molecular damage leading to mitochondrial dysfunction and cognitive decline. Mitochondrial dysfunction is a critical factor in memory impairment in aging and neurodegenerative diseases. While sex differences in aging have been observed across various species, the underlying cellular and molecular mechanisms remain poorly understood, mainly focused on mitochondrial proteostasis. This study examined hippocampal-dependent cognitive...

CONCLUSIONS: The population of nonagenarians was specific in causes of death and comorbidities. Improving end-of-life care for these patients can include a high access to specialist palliative care and symptoms management.

Chemotherapy-induced bone loss is a debilitating and common side effect of cancer treatment, though its underlying mechanisms remain poorly understood. Here, we show that, despite the systemic administration of chemotherapy, cellular senescence is restricted to bone marrow adipo-lineage cells specifically Cxcl12-abundant reticular (CAR) cells and bone marrow adipocytes (BMAds). Induction of senescence within these populations promotes RANK ligand (RANKL)-mediated osteoclastogenesis, leading to...

Aging is closely associated with cardiovascular diseases, the leading cause of mortality worldwide. Mitochondrial dysfunction is a hallmark of cardiovascular aging. Most of the heart's ATP is produced at the cristae, specialized subcompartments where oxidative phosphorylation (OXPHOS) takes place. In this study, we used multiple-scale electron microscopy approaches to evaluate age-related mitochondrial and ultrastructural alterations of cristae in human and mouse hearts. We found that aged...

Quantifying individual deviations in brain morphology from normative references is useful for understanding neurodiversity and facilitating personalized management of brain health. Here we report Chinese brain normative references using morphological imaging scans of 24,061 healthy volunteers from 105 sites, revealing later peak ages of lifespan neurodevelopmental milestones (1.2-8.9 years) than European/North American populations. We model individual brain deviation scores in 3,932 individuals...

CONCLUSIONS: Current research on MCR management is in its early stages and does not fully align with the integrated, proactive principles of the PHM framework. The evidence base is dominated by risk stratification and preliminary intervention studies, while foundational areas like health literacy and technological monitoring are less developed. Future work could focus on standardizing MCR assessment, addressing key gaps in the underrepresented PHM dimensions, and developing and testing...

Older adults are disproportionately affected by infectious diseases like influenza (flu) due to immune declines and poor vaccine responses. Senolytics have been shown to improve various age-related conditions and positively influence infection outcomes, yet their potential to enhance vaccine responses has not yet been explored. Here, we evaluated the potential of senolytic combination Dasatinib (D) and Quercetin (Q) treatment prior to influenza vaccination to potentiate immune responses in aged...

The senescent cell (SC) fate is linked to aging, multiple disorders and diseases, and physical dysfunction. Senolytics, agents that selectively eliminate 30%-70% of SCs, act by transiently disabling the senescent cell antiapoptotic pathways (SCAPs), which defend those SCs that are proapoptotic and pro-inflammatory from their own senescence-associated secretory phenotype (SASP). Consistent with this, a JAK/STAT inhibitor, Ruxolitinib, which attenuates the pro-inflammatory SASP of senescent human...

Kinship relationships between parents affect offspring fitness. Beyond its effects in heterozygosity or its impact in deleterious alleles that can be reduced to homozygosity and decrease the individuals' fitness, the consequences of parental relatedness in the offspring remain understudied. By leveraging the availability of detailed pedigrees of captive Peromyscus we explored how parental relatedness impacts the methylome and the epigenetic age estimation of the offspring. Global CpG methylation...

On October 22nd, 2025, Brain Aging Symposium took place at Harvard Medical School bringing together leading researchers from academia and partner organizations to discuss recent advances in measuring and monitoring human brain aging trajectories, with a particular focus on Alzheimer's disease (AD). A central theme emerged: achieving "the right treatment for the right person and the right time" through precision medicine approaches. Key advances included the unprecedented validation of...

A key characteristic of senescent and ageing cells is a reduction in number and increase in size of nucleoli. Although a number of pathways have been suggested, the mechanisms underlying this altered nucleolar phenotype, and the downstream consequences, remain poorly understood. The PolI complex component, TIF-IA, has previously been implicated in regulating this characteristic nucleolar phenotype in response to stress. Here we explored the role of TIF-IA in senescence and ageing. We show that...

Periodontitis and smoking are major contributors to oral and systemic health deterioration in aging adults. This study investigated the combined effects of smoking status and periodontitis severity on the subgingival microbiome in 1107 individuals aged 69-72 using shotgun metagenomic sequencing. Smoking was linked to reduced microbial diversity, enrichment of periodontal pathogens, and depletion of health-associated commensals, while increasing periodontitis severity was associated with broader...

The olfactory epithelium (OE) undergoes life-long renewal and regeneration. This process is supported by the globose basal cells (GBC) during the homeostatic state, as well as horizontal basal cells (HBC) during severe damage. Inflamm-aging refers to the low-grade, chronic and progressive state of heightened pro-inflammation associated with aging. However, the impact of inflamm-aging on OE homeostasis, regeneration, and the inflammatory microenvironment is not fully understood. In this study...