Key Genetic Switch Directs Long-Range Axon Guidance

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Summary: Neuroscientists have overturned the long-standing idea that growing axons make all navigational decisions only at their tips. New research shows that a coordinated genetic program in the neuron’s cell body (soma) acts as a central switch to guide axons at crucial intermediate checkpoints. By profiling the transcriptional states of more than 12,000 developing neurons … Read more

Disadvantaged Neighborhoods Linked to Faster Brain Aging

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Summary: A large clinical MRI study of 2,826 patients shows that living in socioeconomically disadvantaged neighborhoods is linked to measurable signs of accelerated brain aging, lower overall brain volume, and increased markers of vascular injury in the white matter. The findings demonstrate that structural inequities leave biological imprints on brain structure and vascular health detectable … Read more

Brain Signals Predict Risky Choices 0.5 Seconds Before Decision

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Summary: Using direct recordings from electrodes implanted in the human orbitofrontal cortex, researchers have identified two neighboring neural circuits that engage in a millisecond-by-millisecond “tug-of-war” between approach and avoidance. Distinct electrical patterns predict whether a person will take a risk or play it safe roughly half a second before the action, suggesting precise neural targets … Read more

AI-Designed Longevity Vaccines Target Early Cellular Aging

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Summary: Insilico Medicine has introduced a research initiative called “Longevity Vaccines,” which combines generative artificial intelligence with programmable circular mRNA (cmRNA) delivered in lipid nanoparticles (LNPs). The approach is designed to instruct a patient’s own immune cells to identify and remove senescent, fibrotic, and autoreactive cells that drive aging and chronic disease. Instead of treating … Read more

How Neurons Transcribe Long Genes

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Summary: Researchers have identified a critical nuclear architecture that neurons use to transcribe and process exceptionally long genes. The RNA-binding protein SFPQ assembles meshwork-like, membraneless condensates on nascent long RNAs, concentrating the molecular machinery needed for continuous transcription and co-transcriptional splicing. Failure of these condensates causes transcriptional arrest and splicing defects in ultra-long neuronal genes, … Read more

Immune Protein Protects Brain From Depression and PTSD After TBI

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Summary: Higher baseline levels of naturally occurring anti‑NMDAR1 antibodies in the blood were linked to substantially lower risk of developing post‑deployment depressive and PTSD symptoms among service members with a lifetime history of traumatic brain injury (TBI). In mechanistic mouse experiments, antibody isotype size explained divergent effects: small IgG antibodies penetrated synaptic clefts and impaired … Read more

How Severe Maternal Illness Alters Fetal Brain Development

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Summary: Researchers report that maternal immune activation during pregnancy reshapes the epigenome of developing fetal brain cells, interfering with the formation of deep-layer cortical neurons and raising the likelihood of neurodevelopmental disorders such as autism. Key Facts: Epigenetic Alterations: Maternal immune activation (MIA) changes DNA methylation patterns in the fetal frontal cortex, producing hypermethylation at … Read more

Older Brains Keep Strong Language Networks Despite Decline

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Summary: New brain-imaging research shows that while many cognitive abilities, such as executive control and working memory, tend to decline with age, the neural network that supports language remains robust and functionally intact. The study indicates that brain systems specialized for language are more resistant to age-related change than broader, domain-general networks. Key Facts: Activity … Read more

TIMP2 Restores Immune Function in the Aging Brain

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Summary: Scientists at the Icahn School of Medicine at Mount Sinai report that the youth-associated protein TIMP2 is crucial for preserving healthy microglial function. In aged mice, systemic supplementation of TIMP2 reduced inflammatory signatures and restored microglia’s ability to clear cellular debris—findings that point to new therapeutic directions for age-related neurodegenerative diseases. Key Facts: TIMP2 … Read more

Why Shame, Stigma and Culture Silence Men After Domestic Abuse

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Summary: A large-scale study identifies the main obstacles that stop men from seeking help after experiencing intimate partner violence (IPV). Researchers found that treating the abuse as a private matter was the single most common barrier across Black, Latino, and White men. The study also highlights culturally specific and psychological challenges—such as shame among Latino … Read more