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A surprising discovery could help aging muscles repair themselves

3 hours 30 minutes ago
Scientists have discovered a compound that transforms a natural muscle-repair protein into a more powerful version dubbed "Super HGF," more than doubling its ability to bind to a key receptor while protecting it from age-related chemical damage. The breakthrough, supported by early mouse experiments, could eventually help combat muscle loss and preserve strength as people age.

Scientists may have finally explained why our brains and bodies are cross-wired

3 hours 32 minutes ago
Scientists propose that the brain’s mysterious cross-wiring, which connects each hemisphere to the opposite side of the body, may have originated more than 500 million years ago in the visual systems of ancient fish. Rather than evolving for a specific advantage, this unusual arrangement may simply be a legacy of evolution building new brain circuits on an ancient foundation.

Permanent daylight saving time has a dark side, scientists warn

4 hours 6 minutes ago
A new study warns that permanent daylight saving time could force American children to make at least 2 billion additional school commutes in darkness, potentially increasing safety risks and disrupting their biological clocks. Researchers found that fatal crashes involving school-aged pedestrians were roughly twice as likely during dark mornings as after sunrise.

MKP-2 Genetic Depletion Modulates Adipose Lipid Composition, Cellular Senescence, and Aging in Mice

5 hours 57 minutes ago
Aging is characterized by a gradual decline in physiological functions, impaired cellular repair mechanisms, and increased disease susceptibility. Mitogen-activated protein kinase phosphatase-2 (MKP-2) regulates diverse biological functions, including regulation of infection, brain activity, nutrient metabolism, and cell-cycle progression, but its role in senescence and adipose lipid metabolism in vivo remains unclear. Here, we investigated the effects of MKP-2 deficiency on cellular senescence...
Morgan Welch

Brain structure-function decoupling and neuromuscular coordination during gait and sit-to-stand in healthy aging

5 hours 57 minutes ago
CONCLUSION: Healthy aging is associated with task-dependent reorganization of lower-limb neuromuscular control and selective basal ganglia-striatal structure-function alterations. These findings provide multimodal evidence of parallel central and peripheral reorganization during healthy aging and identify candidate brain-muscle associations for future longitudinal and confirmatory investigation.
Qiaowu Xiong

AI helps Stanford scientists discover a “natural Ozempic” with a surprising advantage

9 hours 59 minutes ago
Stanford researchers have discovered an AI-identified natural molecule that dramatically suppresses appetite and promotes fat loss in animals, potentially offering an Ozempic-like weight-loss treatment without common digestive side effects or significant muscle loss. Called BRP, the molecule reduced food intake by up to 50% and targets a different brain pathway, raising hopes for a more precise obesity treatment if future human trials prove successful.

Scientists trick cancer cells into making the drugs that kill them

12 hours 51 minutes ago
Scientists have developed a promising new cancer-fighting strategy that uses carbon monoxide naturally produced by tumor cells to manufacture powerful drugs inside the cancer cells themselves. Early laboratory experiments suggest the technique could selectively attack cancer while sparing healthy cells, potentially paving the way for safer chemotherapy alternatives.

Kids who eat more ultra-processed foods show a troubling brain response

15 hours 56 minutes ago
A new study suggests that ultra-processed foods may influence children's developing brains in ways that encourage weight gain. Researchers from USC studied 46 children ages 7 to 10 and found that those who ate more ultra-processed foods showed stronger activity in the brain's reward system when viewing tempting foods like cookies and French fries. These heightened brain responses were linked to greater increases in body fat and body mass index (BMI) one year later, suggesting that the brain's sensitivity to food cues may help explain why ultra-processed diets are associated with obesity.

The brain’s hidden fear mechanism may explain anxiety and PTSD

1 day 3 hours ago
A surprising new discovery suggests that fear may cause the brain to blur the line between danger and safety rather than distinguish them more clearly. By observing brain activity in mice using augmented reality, scientists found that memories of threatening and harmless environments began to overlap, potentially allowing faster responses to danger. This "better safe than sorry" survival mechanism could help explain why people with anxiety or PTSD sometimes experience intense fear in completely safe situations.

Scientists discover surprising heart benefits of eating avocado and mango every day

1 day 4 hours ago
Eating an avocado and a cup of mango every day may provide surprising benefits for heart health, according to a new study involving adults with prediabetes. After just eight weeks, participants experienced significant improvements in blood vessel function and diastolic blood pressure, particularly among men. These benefits occurred without weight gain or changes in calorie intake, suggesting that the nutrient-rich combination could support cardiovascular health through a simple dietary adjustment.

Non-invasive oral magnetoelectric vagus nerve neuromodulation for Parkinson's disease therapy

1 day 5 hours ago
Vagus nerve stimulation has shown promising neuroprotective and anti-inflammatory effects in progressive neurodegenerative disorders such as Parkinson's disease. However, its invasive nature introduces procedural and device-related risks. Here we introduce a magnetoelectric particulate system for oral delivery and non-invasive vagus nerve stimulation through the gut. The system comprises a magneto-responsive nickel ferrite core and a piezoelectric barium titanate shell, conjugated with capsaicin...
Cam-Hoa Mac

Vasomechanic treatment is associated with increased efflux of human brain proteins

1 day 5 hours ago
An age-related neurovascular impairment in nitric oxide (NO)-mediated vasodilation and reciprocal Piezo1-dependent vascular vasoconstriction may precede the accumulation of soluble brain proteins such as amyloid-β (Aβ) and disruption of brain fluid homeostasis in Alzheimer's disease (AD). Preclinical studies suggest that restoring these pathways can enhance neurofluid transport and improve cognitive outcomes. In this study (EudraCT 2021-000625-27), we investigated the effects of sublingual NO...
Johanna Tuunanen

Tree Shrew as an Emerging Model for Aging Research: Characterization of Senescence and Therapeutic Interventions

1 day 5 hours ago
Aging is characterized by progressive physiological decline and increased susceptibility to age-related diseases. Conventional rodent models have contributed significantly to our understanding of aging, yet their translational relevance is limited by substantial evolutionary divergence from humans. Here, we introduce the tree shrew (Tupaia belangeri chinensis) as a novel and biologically relevant model organism for aging research. In vitro, we induced cellular senescence in tree shrew...
Qiuni Luo