The Briefing

Continuous newsroom coverage of clinically relevant evidence — newest first.

This week

24 stories
  1. Cerebellar Disinhibitory Circuit Controls Motor Learning Signals
    Nature Neuroscience ·In Vitro Study · May 16, 2026

    Cerebellar Disinhibitory Circuit Controls Motor Learning Signals

    New research in mice reveals how synchronized climbing fiber activity selectively gates error signals to enable adaptive motor learning.

  2. Ensitrelvir Reduces COVID-19 Incidence by 6.1% in Household Contacts
    New England Journal of Medicine ·Randomized Controlled Trial · May 16, 2026

    Ensitrelvir Reduces COVID-19 Incidence by 6.1% in Household Contacts

    An oral SARS-CoV-2 3C-like protease inhibitor significantly lowers infection rates when given as postexposure prophylaxis.

  3. Secreted GPNMB Drives Alpha-Synuclein Spread in Parkinson's Disease
    Neuron ·Cohort Study · May 16, 2026

    Secreted GPNMB Drives Alpha-Synuclein Spread in Parkinson's Disease

    A new study identifies a microglial-neuronal feedback loop involving GPNMB that exacerbates alpha-synuclein pathology, offering a therapeutic target.

  4. Daratumumab-VCd Improves Survival, Organ Function in AL Amyloidosis
    Blood ·Randomized Controlled Trial · May 16, 2026

    Daratumumab-VCd Improves Survival, Organ Function in AL Amyloidosis

    Final ANDROMEDA analysis confirms sustained benefits of D-VCd for newly diagnosed light-chain amyloidosis, including overall survival.

  5. Skin Biopsy Distinguishes Body-First from Brain-First Parkinson’s Disease
    Brain ·Cross-Sectional Study · May 16, 2026

    Skin Biopsy Distinguishes Body-First from Brain-First Parkinson’s Disease

    Cutaneous alpha-synuclein signatures and seeding activity identify divergent pathological origins and autonomic denervation patterns.

  6. TES Criteria Show Low Accuracy for CTE-NC Diagnosis
    Nature Medicine ·Diagnostic Accuracy Study · May 15, 2026

    TES Criteria Show Low Accuracy for CTE-NC Diagnosis

    A study of 1,038 brain bank cases reveals that traumatic encephalopathy syndrome criteria poorly predict postmortem chronic traumatic encephalopathy.

  7. Critically Ill Women in India Receive Less Organ Support, Show Similar Mortality
    Critical Care Medicine ·Cohort Study · May 15, 2026

    Critically Ill Women in India Receive Less Organ Support, Show Similar Mortality

    A large registry-embedded cohort study reveals sex-based differences in critical care provision without impacting adjusted mortality.

  8. Indian ICUs: Women Receive Less Organ Support, Similar Mortality to Men
    Critical Care Medicine ·Cohort Study · May 15, 2026

    Indian ICUs: Women Receive Less Organ Support, Similar Mortality to Men

    A large registry-embedded cohort study in India reveals sex-based differences in critical care resource utilization.

  9. Gram-Negative Bacteria Dominate Neonatal Infection Deaths in LMICs
    Lancet. Infectious diseases ·Cohort Study · May 15, 2026

    Gram-Negative Bacteria Dominate Neonatal Infection Deaths in LMICs

    A multicountry study identifies Klebsiella pneumoniae and Acinetobacter baumannii as leading causes of neonatal infection mortality.

  10. Intracranial Stimulation Prevents Attentional Lapses in Children
    Nature Neuroscience ·Randomized Controlled Trial · May 15, 2026

    Intracranial Stimulation Prevents Attentional Lapses in Children

    A new study identifies a real-time neural signature for attentional control, enabling targeted intervention to improve attention shifts.

  11. Recent Trauma Exposure Linked to Increased V1 Thickness, Independent of PTSD Symptoms
    PubMed ·Cohort Study · May 15, 2026

    Recent Trauma Exposure Linked to Increased V1 Thickness, Independent of PTSD Symptoms

    A two-sample study identifies greater V1 thickness in recently trauma-exposed individuals, a finding distinct from PTSD symptom severity.

  12. Tfr2 Essential for Acute Hepcidin Induction in Tfr1-Deficient Mouse Hepatocytes
    Blood ·Animal Study · May 15, 2026

    Tfr2 Essential for Acute Hepcidin Induction in Tfr1-Deficient Mouse Hepatocytes

    A murine study reveals that transferrin receptor 2 and HFE must cooperate to trigger hepcidin during rapid iron fluctuations.

  13. Hippocampal Lesions Reduce Visual Working Memory Precision in Epilepsy Patients
    Brain ·Cohort Study · May 15, 2026

    Hippocampal Lesions Reduce Visual Working Memory Precision in Epilepsy Patients

    Postoperative hippocampal damage selectively degrades memory quality rather than quantity, offering a marker for functional monitoring.

  14. Extra-Pulmonary TB Linked to Persistent Lung Function Deficits
    American Journal of Respiratory and Critical Care Medicine ·Cohort Study · May 15, 2026

    Extra-Pulmonary TB Linked to Persistent Lung Function Deficits

    A new study reveals that extra-pulmonary tuberculosis survivors experience lasting respiratory impairment, similar to pulmonary TB.

  15. Extrapulmonary TB Linked to Persistent Lung Function Deficits, Respiratory Symptoms
    American Journal of Respiratory and Critical Care Medicine ·Cohort Study · May 15, 2026

    Extrapulmonary TB Linked to Persistent Lung Function Deficits, Respiratory Symptoms

    A new study reveals that individuals treated for extrapulmonary tuberculosis frequently develop lasting ventilatory defects and respiratory symptoms.

  16. Sutureless Robotic Partial Nephrectomy Noninferior to Renorrhaphy for Renal Tumors
    European urology ·Randomized Controlled Trial · May 15, 2026

    Sutureless Robotic Partial Nephrectomy Noninferior to Renorrhaphy for Renal Tumors

    A randomized controlled trial indicates sutureless off-clamp robotic partial nephrectomy offers comparable surgical quality for cT1-2N0M0 renal tumors

  17. Reduced ULK1 Links Impaired Cellular Clearance to Alzheimer's Pathology
    Nature Aging ·Cohort Study · May 15, 2026

    Reduced ULK1 Links Impaired Cellular Clearance to Alzheimer's Pathology

    Lower levels of ULK1 correlate with Alzheimer's disease, and its upregulation improves pathology and cognition in animal models.

  18. Thalamic Connections to Medial Prefrontal Cortex Predict Impulsivity
    Molecular Psychiatry ·Cohort Study · May 15, 2026

    Thalamic Connections to Medial Prefrontal Cortex Predict Impulsivity

    A new study links specific thalamic subregions, defined by cortical connectivity, to individual differences in delay discounting.

  19. Thalamic-MPFC Connectivity Linked to Individual Differences in Impulsivity
    Molecular Psychiatry ·Cohort Study · May 15, 2026

    Thalamic-MPFC Connectivity Linked to Individual Differences in Impulsivity

    A new study identifies specific thalamic subregions connected to the medial prefrontal cortex as structural correlates of delay discounting.

  20. CCL19 Tracks IgG4-Related Disease Activity, Supplements IgG4 Levels
    Annals of the Rheumatic Diseases ·Cohort Study · May 15, 2026

    CCL19 Tracks IgG4-Related Disease Activity, Supplements IgG4 Levels

    A new study identifies C-C motif chemokine ligand 19 as a dynamic serum biomarker for monitoring IgG4-RD treatment response and relapse.

  21. ECPR for OHCA in Singapore: Cost-Effective, but Sensitive to Transport Delays
    Critical Care Medicine ·Cost-Effectiveness Analysis · May 15, 2026

    ECPR for OHCA in Singapore: Cost-Effective, but Sensitive to Transport Delays

    A simulation-based analysis suggests ECPR for refractory OHCA in Singapore is cost-effective, though transport time significantly impacts its economic

  22. Telitacicept Reduces Proteinuria in IgA Nephropathy: Phase 3 Interim Analysis
    New England Journal of Medicine ·Randomized Controlled Trial · May 15, 2026

    Telitacicept Reduces Proteinuria in IgA Nephropathy: Phase 3 Interim Analysis

    A dual BAFF and APRIL antagonist significantly lowers urinary protein-to-creatinine ratio in adults with IgA nephropathy at high risk of progression.

  23. Prefrontal GABAergic Synaptic Plasticity Regulates Cognitive Flexibility
    Neuron ·Animal Study · May 15, 2026

    Prefrontal GABAergic Synaptic Plasticity Regulates Cognitive Flexibility

    A new study identifies a specific long-range inhibitory synaptic mechanism in the prefrontal cortex crucial for adapting to changing rules.

  24. Brepocitinib 30 mg Improves Dermatomyositis Symptoms and Reduces Glucocorticoid Need
    New England Journal of Medicine ·Randomized Controlled Trial · May 15, 2026

    Brepocitinib 30 mg Improves Dermatomyositis Symptoms and Reduces Glucocorticoid Need

    A phase 3 trial shows that once-daily oral brepocitinib 30 mg significantly improves disease activity and allows for glucocorticoid tapering in adults