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Scientists have uncovered a hidden defense mechanism in aging muscles that sacrifices strength to protect cells from damage. In mice, partially restoring a crucial molecule reversed signs of muscle wasting and prevented premature death, raising hopes for new treatments for age-related muscle decline.

A new Finnish study reveals that just 30 minutes in a sauna can temporarily flood the bloodstream with additional white blood cells, potentially helping the immune system patrol the body and detect threats. The surprising response resembles the immune boost seen during exercise and may help explain some of the health benefits linked to sauna bathing.

NASA’s Artemis I mission has revealed that cosmic radiation near the Moon is higher than in Earth orbit, but not by as much as scientists might expect. Tiny experimental detectors also uncovered surprising details about how radiation passes through the human body, offering valuable insights for future lunar exploration.

Molecular profiling studies have mapped vascular alterations in Alzheimer's disease, but have not proven a role for them in pathology. Longitudinal studies are needed to link molecular and structural changes to vascular mechanics, hemodynamics, and tissue perfusion.

Oxidative stress is a hallmark of aging and a key driver of neurodegenerative diseases. While much attention has been given to oxidative damage of macromolecules, the functional consequences of oxidizing the abundant nucleotide triphosphate (NTP) pool remain largely unknown. Here, we identify oxidized GTP (8-oxoGTP)-a major product of NTP oxidation-not as a mere marker of damage, but as an endogenous signaling molecule that drives microglial activation and neuroinflammation. 8-oxoGTP accumulated...

Chemotherapy-induced cognitive impairment (CICI), often referred to as "chemobrain," is a frequently persistent complication that significantly affects memory, attention, executive function, and overall quality of life among cancer survivors. Although mitochondrial dysfunction, oxidative stress, neuroinflammation, and gut microbiota dysbiosis have each been implicated in its pathogenesis, the way these processes interact to drive cognitive decline remains incompletely understood. In this...

The condition of having a healthy, functional proteome is known as protein homeostasis, or proteostasis. Establishing and maintaining proteostasis is the province of the proteostasis network, a highly interconnected system of over 3000 components that regulate protein synthesis, folding, localization, and degradation. The proteostasis network is a fundamental functional unit in biology that is essential for cellular health and has direct relevance to many diseases of protein conformation....

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CONCLUSION: This study demonstrates that digital engagement is significantly and positively associated with SPA among older adults, with Internet use skills serving as an important moderating factor. Three interventions are needed: age-friendly interfaces, targeted engagement strategies, and digital literacy programs. Bridging the digital divide is essential for positive aging.

CONCLUSIONS: Combining dual-task gait variability with clinical functional assessments via machine learning algorithms provides a robust and interpretable framework for faller identification. The integration of optical gait analysis and machine learning facilitates early risk screening and personalized retrospective evaluation, offering a promising tool to assist in detecting older adults at risk for fall-related injuries in the aging population.

CONCLUSIONS: Findings suggest that hs-CRP and CRP biomarkers are associated with physical performance decline in older adults. Future research including a broader range of inflammation biomarkers should provide insights and understanding of mechanisms linking inflammation and physical decline.