The Briefing
Continuous newsroom coverage of clinically relevant evidence — newest first.
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Nicotine Rewires Habenular Circuits in Mice, Altering Food Motivation
Chronic nicotine exposure in mice disrupts top-down control of the LDT-VTA cholinergic axis, driving exaggerated food-seeking behavior.
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Vitamin C Reverses Depression-Like Behavior in Female Mice via D2 Receptors
A single dose of ascorbic acid restored dopamine D2 receptor signaling in the prefrontal cortex, rapidly alleviating depression in mice.
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Inhibiting RhoA in Rat Prefrontal Cortex Reduces Morphine Dependence
Blocking the RhoA pathway in rats reduces opioid-induced neuroplasticity and limits glutamate spillover, offering a specific addiction target.
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Epigenetic Target HDAC5 Reduces Environment-Triggered Cocaine Seeking in Rats
In a rat model, overexpressing the enzyme HDAC5 in the prelimbic cortex shifted synaptic balance to suppress context-driven cocaine seeking.
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Cognitive Status Remains Key Predictor of Dementia Risk Alongside p-tau181
ARIC data show that while p-tau181 is prognostic, the absolute risk of dementia remains low in cognitively unimpaired individuals.
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Young Children Require Higher Benzodiazepine Doses for PICU Ventilation
A retrospective cohort study reveals that children under five receive significantly higher weight-adjusted doses of midazolam and lorazepam.
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Social Anxiety Affects Nearly Half of College Students
An analysis of 5,996 students reveals a 47.9% incidence of social anxiety, with gender, grade, and physical activity as top predictors.
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Caffeinated Coffee and Tea Lower Dementia Risk; Decaf Shows No Benefit
A 43-year prospective study of 131,821 adults reveals that 2 to 3 cups of caffeinated coffee daily significantly reduces incident dementia.
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Cross-Ancestry Analysis Identifies Shared Genetic Risk for Major Psychiatric Disorders
Researchers identified 403 genetic loci and specific cellular pathways common to schizophrenia, bipolar disorder, and depression.
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Glioblastoma Cells Hijack Fetal Neural Stem Cell Motors to Spread
Glioblastoma cells use the same dynein-driven and actomyosin-dependent motors as fetal neural stem cells to invade surrounding tissue.
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Apps for Alcohol Use Do Not Improve Mood Beyond Standard Care
In a randomized trial, digital tools added to standard care did not further reduce depression or anxiety in adults with alcohol dependence.
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Intracortical Implant Enables Paralyzed Patients to Type 22 Words Per Minute
By decoding attempted finger movements, a neuroprosthesis allows patients with tetraplegia to type on a virtual QWERTY keyboard.
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Bedside Score Predicts Successful Dialysis Discontinuation in ICU Patients
The UNDERSCORE tool uses six routine clinical variables to help physicians determine if critically ill patients can safely stay off dialysis.
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East Asian Registry Details Distinct Demyelinating Disease Profile
A Korean registry reveals that antibody-mediated conditions account for nearly half of central nervous system demyelinating cases.
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Algorithm Predicts Mortality in Carbapenem-Resistant ICU Infections
A LightGBM model using routine clinical data accurately predicted 15-day mortality, highlighting coagulopathy and time to antibiotics.
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Opioid Medications Halve Mortality but Reach Only a Quarter of Patients
A clinical review details how optimizing methadone, buprenorphine, and naloxone can close the treatment gap and reduce all-cause mortality.
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Structured Exercise Improves Sleep and Executive Function in Preteens With Autism
A 10-to-12-week physical activity program objectively reduced sleep fragmentation and improved problem-solving in children with autism.
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Continuous Rocuronium Yields Modest Intracranial Pressure Reductions
A retrospective analysis reveals that continuous neuromuscular blockade lowers intracranial pressure by only 1 to 2 mm Hg in severe cases.
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Tumor Debulking Adds Toxicity Without Survival Benefit in Metastatic Colorectal Cancer
Adding tumor debulking to chemotherapy fails to extend survival and increases severe adverse events in metastatic colorectal cancer.
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White Matter Damage Drives Cognitive Decline via Two Distinct Pathways
In amyloid-negative patients, periventricular lesions directly impair memory but indirectly drive executive dysfunction via hypometabolism.
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Schizophrenia Patients Lack Neural Mismatch Response to Unmasked Faces
Patients with schizophrenia fail to generate a normal brain response when internal predictions of a face conflict with new visual input.
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Limiting ICU Wrist Restraints Fails to Increase Delirium-Free Days
A restrictive wrist-strap protocol in mechanically ventilated adults did not improve delirium-free days or increase self-extubation risk.
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12-Week Diet and Exercise Program Improves Post-ICU Physical Function
A 12-week regimen of exercise and protein supplementation significantly improves physical functioning in long-stay ICU survivors.
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Plasma p-Tau217 Matches PET for Modeling Alzheimer's Timelines
Plasma p-tau217 accurately estimates the onset of amyloid and tau pathology, offering an accessible alternative to expensive PET scans.