Key Highlights
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Acute stress impairs reversal learning in mice through neurochemical and transcriptional changes in the orbitofrontal cortex. This research pinpoints how external stress alters brain function, offering new targets for understanding the causes of cognitive and behavioral disorders.
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Plasma biomarkers, including pTau181 and GFAP, effectively track Alzheimer’s disease progression in pre-dementia stages by strongly correlating with amyloid and tau PET scans. This finding supports simpler blood-based monitoring for early neurological disorders, reducing the need for expensive brain imaging.
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A new UK clinical guideline details safe use of lecanemab, an anti-amyloid drug for early Alzheimer’s disease, focusing on eligibility and rigorous MRI monitoring for brain changes. This marks a major step in directly targeting the molecular causes of neurodegeneration in clinical practice.
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Loss of the RB1 protein defines Bowenoid skin cancer and arises from distinct genetic mutations, in contrast to conventional skin cancer and HPV-driven types. This discovery illuminates different molecular pathways for neurological tumors where RB1 disruption is a key mechanism, highlighting new research directions.
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A protein called DPP6 directly controls the balance of sodium and potassium currents in heart cells, affecting the risk of dangerous arrhythmias. This discovery, relevant to neurodevelopmental disorders involving ion channels, provides a new target for understanding and treating electrical instability in the brain and heart.
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Science Briefing
