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Evaluating AGE-PAIRS, an Intergenerational Mentorship Program for Medical Students With Older Adult Physician Alumni
CONCLUSIONS: AGE-PAIRS demonstrates the feasibility of engaging physician alumni as mentors in early geriatrics education and suggests that structured intergenerational mentorship can support empathy and professional identity formation. Future work will integrate AGE-PAIRS more deeply into graded coursework, add structured mentor reflections, expand participation across all class years, and evaluate higher-level outcomes such as geriatrics knowledge, clinical performance, and interest in...
Hippocampal formation-cortical high-fidelity memory networks in healthy older adults during the mnemonic discrimination task
INTRODUCTION: Fidelity of detailed information retrieved from long-term memory (LTM) declines in aging due to changes affecting learning and remembering processes. Such behavioral deficits correspond with functional alterations in the hippocampal formation. However, it is unclear whether age-related decline in high-fidelity retrieval alters functional connections between hippocampal and cortical regions.
Rising stars of mathematics awarded prestigious 2026 Fields Medal
How does Make America Healthy Again hold up against scientific scrutiny?
What <i>The Odyssey</i> reveals about ancient science – from botany to psychiatry
Breathalyser can tell if you are burning fat from a single exhalation
Could small-team science be dying out?
Colorectal cancer warning signs younger adults should never ignore
Colorectal cancer is now the leading cause of cancer death among people under 50, and cases in younger adults continue to rise. Warning signs can include persistent bowel changes, recurring rectal bleeding, dark or narrow stools, unexplained weight loss, and fatigue. These symptoms often have harmless causes, but they should not be dismissed, especially when they are new or ongoing. Early detection can greatly improve treatment outcomes.
Lab-grown mini brains may predict which Alzheimer’s treatments will work
Miniature brain models grown from patients’ cells revealed striking differences in how Alzheimer’s-related tissue responds to an antidepressant. The organoids and the particles they release could eventually guide more personalized treatments and provide new clues for diagnosing the disease.
Contagious fish cancer overruns New England lake
Catfish melanomas are the first example of a transmissible cancer in fish, genetic studies reveal
Muscle Quality Deteriorates More Rapidly Than Muscle Quantity in Lumbar Paraspinal Muscles: A 4-Year Longitudinal MRI Study
CONCLUSIONS AND IMPLICATIONS: Among community-dwelling older adults, MRI-derived muscle quality deteriorated substantially faster than muscle quantity over 4 years and more closely paralleled declines in physical performance. These findings suggest that age-related muscle deterioration is driven primarily by qualitative degeneration rather than simple loss of muscle mass and support the use of imaging-based muscle quality measures as sensitive biomarkers of biological muscle aging.
Enhanced non-enzymatic H(2)S generation extends lifespan and healthspan in male mice
No abstract
Effects of free-weight resistance training based on hexagonal barbell deadlift in older women: A 24-week randomized controlled trial
CONCLUSION: HBDL-based free-weight resistance training is a safe, feasible, and effective strategy to improve body composition, trunk extensor function, and mobility in older women.
Super homotypic targeting by surface engineering of extracellular vesicles
Homotypic targeting is the inherent ability of cells to preferentially interact with cells of the same type, a phenomenon seen in cell adhesion, tissue formation and immune responses. However, its potential remains underexploited. Here we report a strategy to substantially enhance homotypic targeting through extracellular vesicles secreted by cells. By engineering the surface of small extracellular vesicles (sEVs) with lanthanides, we amplify specific cell-sEV interactions by more than 25-fold,...
Premature senescence impairs hematopoietic stem cell function during sickle cell disease in mice and humans
Sickle cell disease (SCD) is a blood disorder affecting millions worldwide. Emerging evidence reveals that SCD pathophysiology increases the risk of myeloid malignancies and hematopoietic stem cell (HSC) dysfunction, likely because of chronic stress on bone marrow. To investigate this further, we interrogated bone marrow hematopoietic stem and progenitor cells (HSPCs) from mice and individuals with SCD and observed molecular signatures of chronic cellular stress including oxidative stress, DNA...
Responses of Physical Performance to the Eight Weeks of Dynamic Neuromuscular Stability Exercises in Older Men
Balance and lower limb muscle strength are essential factors in preventing falls in older adults. This randomized controlled trial investigated the effect of 8 weeks of dynamic neuromuscular stability (DNS) exercises on static balance, dynamic balance, and lower limb strength in older men. Thirty older men aged 61-76 years were randomly allocated to either a DNS exercise group (n = 15) or a control group (n = 15). The experimental group performed DNS exercises for 8 weeks (3 sessions/week),...
The PERK paradox in aging: how ER stress shapes senescence and neurodegeneration
Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) are now recognized as integral components of the proteostasis network that preserves cellular and tissue function across the lifespan. With aging, increasing oxidative load, metabolic imbalance, and Ca²⁺ dysregulation elevate the burden of misfolded proteins in the ER, leading to progressive UPR engagement. When ER stress is mild or transient, UPR signaling restores folding capacity, restrains translation,...
VCD-induced estropause fails to enhance responsiveness to 17α-estradiol in adult female mice
17α-estradiol (17α-E2) extends median lifespan and improves metabolic homeostasis in male mice through estrogen receptor α (ERα)-dependent mechanisms, but female mice are largely unresponsive unless ovariectomized or subjected to chronic high-fat feeding. Whether the gradual hormonal transition of natural reproductive aging similarly unmasks female responsiveness to 17α-E2 remains unknown. We tested whether 4-vinylcyclohexene diepoxide (VCD)-induced depletion of the ovarian reserve would render...
From matrix to nucleus: CD44 as a central regulator of inflammaging, autophagy, and tissue homeostasis
Aging is characterized by a progressive decline in cellular and tissue function, shaped in part by disruptions in communication between the extracellular matrix (ECM) and intracellular signaling networks. The cell surface receptor CD44 functions as a molecular hub, integrating signals from a remodeled ECM to regulate core aging programs including senescence, inflammation, and metabolic balance. This review synthesizes evidence that CD44, through its structural domains, isoform diversity, and...
A machine learning approach to identify key epigenetic transcripts for ageing research in human blood (Epitage)
DNA methylation is an established biomarker of human ageing and is used by a variety of tools to identify meaningful epigenetic signals. We investigated whether analysing CpGs grouped by transcript as functional units could generate a ranked list of transcripts most correlated with age that might otherwise be overlooked in genome-wide CpG-based studies. Here we present Epitage ( https://github.com/a00s/epitage ), a continuously updated ranked list of transcripts built from the GSE87571 dataset...