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Sex-specific control of locomotor behavior by neuronal Arhgef10 in aged Drosophila

2 weeks ago
Mutations and polymorphisms in the Rho guanine nucleotide exchange factor 10 (ARHGEF10) locus are associated with behavioral and locomotor dysfunctions in humans, including psychiatric disorders and polyneuropathies that show age- and sex-specific prevalence. ARHGEF10 encodes a conserved guanine exchange factor that activates Rho GTPases and has proposed roles in cell migration and adhesion, but the relevant cell types and mechanisms underlying its age- and sex-dependent effects remain unclear....
Mafalda Gualdino

ADHD may have a surprising creative advantage

2 weeks ago
Some of the attention patterns that make ADHD challenging may also help spark creativity by allowing the brain to explore more ideas and unexpected connections. Researchers think creative activities could potentially channel this “defocused attention” while helping strengthen the brain systems involved in focus and self-control.

Each extra hour of prolonged sitting linked to 9% higher cancer death risk

2 weeks ago
Sitting for long, uninterrupted stretches may carry greater health risks than sitting the same amount of time in shorter bouts. Researchers found that each extra hour of prolonged sedentary behavior was associated with a 9% higher risk of cancer death. Breaking up sitting with movement showed the opposite pattern, while replacing an hour of prolonged sitting with light activity was linked to a 12% lower risk.

“Broken heart syndrome” can look just like a heart attack. This test can tell them apart

2 weeks ago
“Broken heart syndrome” can mimic a heart attack so closely that patients often need invasive testing to tell the difference. Researchers have now developed the BioTAK score, which combines biological sex with blood biomarkers to identify the condition before cardiac catheterization. In a validation study of nearly 1,800 patients, it correctly classified almost 90% of participants.

Money problems may age your brain faster

2 weeks ago
Persistent financial hardship in early and middle adulthood was linked to poorer thinking skills by the 50s and more signs of brain aging later in life. Researchers say years of chronic stress and financial worry may gradually take a toll on the brain.

Alzheimer’s may leave a mark on the brain long before plaques appear

2 weeks 1 day ago
Brain changes associated with Alzheimer’s may begin at least seven years before amyloid plaques become detectable with current PET scans. Researchers uncovered the signal by tracking healthy older adults with repeated brain imaging over nearly 20 years. The discovery could help scientists identify Alzheimer’s earlier and suggests that important disease processes may start before visible plaque buildup.