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CONCLUSION: This study demonstrates that Rb1 attenuates DNA damage, thus ameliorating structural remodeling and biomechanical function of the aging aorta, and delaying vascular aging and apoptosis. Our findings suggest that Rb1 counteracts age-related aortic impairment, potentially by targeting the DNA damage pathway, which highlights its therapeutic potential against vascular aging.

CONCLUSION: The findings suggest that adapted tango may be an effective non-pharmacological intervention for enhancing executive and cognitive functions in older adults, with potential implications for promoting cognitive health in aging populations.

Social determinants of health (SDHs) are the primary drivers of health inequalities, but whether biological aging plays a role in linking SDHs to health outcomes remains unclear. Here we utilize detailed information on social determinants across five domains, clinical parameters and electronic health records from the UK Biobank and US NHANES to examine the associations between combined SDHs, accelerated biological aging, and health outcomes. Compared with participants in the favourable SDH...

Lung aging is a multifactorial series of molecular alterations that leads to gradual deterioration of lung function and increased vulnerability to cancer. Tumor communicates with host organs partially through extracellular vesicles; however, the mechanistic drivers and consequences of lung aging in the context of cancer remain unclear. Here we identify cancer cell-secreted dimethylarginine dimethylaminohydrolase-1 (DDAH1) protein induces citrulline accumulation and promotes lung fibrosis and...

CONCLUSION: An 8-week lifestyle counseling intervention significantly improved intrinsic capacity and its domains in older women. These findings support the implementation of targeted, multidomain interventions to promote healthy aging, though longer-term studies are needed to assess sustained benefits.

Sepsis-associated secondary infection often leads to a high mortality rate. Dysfunctional macrophages are primary contributors to inadequate antimicrobial defense in patients with sepsis-associated immunosuppression. Rejuvenating macrophage antibacterial capacity is beneficial for host defense against secondary infection. Here, we developed "BATMAN" (bacteria-targeted transformable macrophage nanorejuvenator), a self-assembling peptide nanoparticle to tackle sepsis-associated secondary infection...

The right vagus nerve is essential for cardiac homeostasis, and its intrathoracic resection can lead to postoperative cardiac complications. Strategies to restore vagal innervation after transection at the cardiac level remain lacking. Here, we show that early reconnection of the right vagus nerve using an implantable chitosan/poly-ε-caprolactone cuff-like nerve guidance conduit preserved cardiac mechanical function in adult male minipigs subjected to right cardiac vagotomy. Treated animals...

Urolithin A is an anti-aging and anti-inflammatory gut bacterial metabolite derived from ellagic acid (EA), a polyphenol abundant in berries and nuts. The conversion of EA to urolithin A involves multiple chemically challenging phenol dehydroxylation steps that produce urolithins with varying bioactivities. Despite their biological and chemical significance, the bacterial enzymes responsible for urolithin production remain largely unidentified. Here, we use differential gene expression analysis,...

Metabolic dysfunction-associated steatotic liver disease (MASLD) is a prevalent condition increasingly recognized in aging populations. However, its clinical relevance in older adults-particularly in relation to sarcopenia, cognitive function, and rehabilitation outcomes-remains poorly defined. This retrospective observational study included in-patients admitted for geriatric rehabilitation in 2022 with available abdominal ultrasound. MASLD was defined according to AASLD/EASL criteria....

Facial wrinkling is a prominent sign of aging, yet individuals exhibit unique trajectories of biological aging, contributing to the variability in facial appearance. Here, we present a pioneering study exploring the association between lifestyle choices, DNA methylation, and SNP genotypes with a range of facial skin aging phenotypes. The study demonstrated that age-related facial skin phenotypes are influenced by multiple environmental stressors. Epigenome-wide association analyses identified...

BACKGROUND AND OBJECTIVES: Ageing populations present new challenges for society, governments and for health systems. To accommodate the global demographic shift towards older populations, healthcare systems preparedness is of paramount importance. To prepare and equip health systems to best support older adults' health and well-being over the long-term it is necessary to understand how current systems may unintentionally marginalize older adults. Therefore, the purpose of this review and...

Autophagy is a major intracellular degradative process required for maintaining homeostasis in multicellular organisms. Aberrant autophagy is considered to induce internal environmental disturbance and cell death. Therefore, it is of great significance to explore the regulatory mechanism of autophagy. Here, we report a positive role of protein Pira, a SUMO protease, in inducing autophagy and autophagy-dependent cell death during Drosophila development. We found that overexpression of pira in...

CONCLUSION: This study elucidates the underlying mechanisms between neighborhood environment and physical activity among older adults, Neighborhood environment is not only directly associated with physical activity levels among older adults but also indirectly influences physical activity through two psychological cognitive mediators: self-efficacy and outcome expectations.

Fewer outsiders, less feedback, and an uncertain fate for a new science board report

Three research teams have modeled how early embryos find a place to take root

Alzheimer's disease (AD) is traditionally considered irreversible. Here, however, we provide proof of principle for therapeutic reversibility of advanced AD. In advanced disease amyloid-driven 5xFAD mice, treatment with P7C3-A20, which restores nicotinamide adenine dinucleotide (NAD^(+)) homeostasis, reverses tau phosphorylation, blood-brain barrier deterioration, oxidative stress, DNA damage, and neuroinflammation and enhances hippocampal neurogenesis and synaptic plasticity, resulting in full...

Genetic variations in MS4A4A and MS4A6ATriggering receptor expressed on myeloid cells 2 (TREM2) are linked to the regulation of cerebrospinal-fluid-soluble TREM2 levels and are associated with Alzheimer's disease (AD) risk and progression. By modulating MS4A4A using knockout, overexpression, and degrading antibodies in macrophages, microglia, non-human primates (NHPs), and a mouse model of amyloid pathology, we provide evidence that MS4A4A and MS4A6A are negative regulators of both the...

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