Skip to main content

Aggregator

Scientists trick cancer cells into making the drugs that kill them

2 days 12 hours 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

2 days 15 hours 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

3 days 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

3 days 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

3 days 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

3 days 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

3 days 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

Lower-limb blood flow restriction training for improving multiple dimensions of muscle strength and physical performance in older adults: a systematic review and meta-analysis

3 days 5 hours ago
CONCLUSION: Both LL-BFR and W-BFR may improve lower-limb muscle strength and physical performance in older adults, particularly when compared with no intervention or conventional walking. Lower-limb BFR training may therefore have a potential role in sarcopenia prevention and early management in aging populations, especially for individuals who are unable to tolerate high mechanical loads.
Jack Diao