Oruen CNS Weekly Roundup: Latest Findings Across CNS Medicine

Multiple Sclerosis / Neuroimmunology

Epstein–Barr virus activity may begin decades before multiple sclerosis develops

A Brain study using pre-symptomatic blood samples found that people who later developed multiple sclerosis showed stronger antibody responses to lytic Epstein–Barr virus antigens more than 20 years before clinical onset. EBV-related immune changes were followed by emerging autoantibody responses and later increases in neurofilament light, supporting a possible sequence from viral activity to autoimmunity and neuroaxonal injury. Published 22 August 2026.

Hyperlink:
https://academic.oup.com/brain/advance-article/doi/10.1093/brain/awag283/8768537

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Epilepsy / Neurogenetics

Earlier sodium channel blocker treatment linked to better outcomes in KCNQ2 disorders

A retrospective Brain study examined treatment timing in people with KCNQ2-related epilepsy and neurodevelopmental disorders. Earlier initiation of sodium channel blockers was associated with earlier seizure freedom and more favourable developmental outcomes, adding support for their early use in appropriately diagnosed KCNQ2 disorders. Published 18 August 2026.

Hyperlink:
https://academic.oup.com/brain/advance-article/doi/10.1093/brain/awag277/8763490

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Movement Disorders / Neurodegeneration

Different alpha-synuclein aggregates trigger distinct patterns of tau pathology

Research in non-human primates found that different forms of alpha-synuclein aggregates produced differing profiles of tau phosphorylation and accumulation. Small alpha-synuclein aggregates appeared particularly capable of promoting tau co-pathology, offering further insight into how proteinopathies may interact in Parkinson’s disease and related neurodegenerative disorders. Published 22 August 2026.

Hyperlink:
https://academic.oup.com/brain/advance-article/doi/10.1093/brain/awag284/8768538

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Stroke / Neurointervention

Inflammatory cytokines may help predict outcome after endovascular stroke treatment

A study of patients undergoing endovascular therapy for acute ischaemic stroke found that early circulating inflammatory markers, including interleukin-6 and interleukin-10, were associated with 90-day functional outcome. Incorporating cytokine measurements into prognostic models may eventually help improve post-thrombectomy risk stratification, although external validation is required. Published 26 August 2026.

Hyperlink:
https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2026.1903651/full

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Headache / Migraine

Real-world study examines short-term preventive use of rimegepant in migraine

New US real-world research assessed how men and women use rimegepant for short-term migraine prevention around predictable triggers. Most participants reported being satisfied with treatment, while some differences emerged between sexes in migraine triggers and patterns of use. The findings provide additional evidence on how CGRP-targeted therapy is being used outside traditional continuous preventive regimens.

Hyperlink:
https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2026.1901123/abstract

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OCD / Functional Neurosurgery

Long-term DBS outcomes reported in severe treatment-resistant OCD

A new study examined long-term outcomes following deep brain stimulation targeting the nucleus accumbens/anterior limb of the internal capsule in people with severe treatment-resistant obsessive-compulsive disorder. Among patients who achieved a meaningful response, subsequent loss of benefit appeared relatively uncommon, although the retrospective design and differing follow-up periods limit conclusions about durability.

Hyperlink:
https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2026.1905823/abstract

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ADHD / Child & Adolescent Psychiatry

Study explores nutritional and biochemical factors associated with childhood ADHD

Researchers analysed clinical and laboratory data from children in Hubei, China, using liquid chromatography–tandem mass spectrometry to investigate factors associated with ADHD. Differences involving nutritional markers, including vitamins A and D, were identified, adding to research examining metabolic and nutritional correlates of ADHD while not establishing that these factors cause the disorder. Published 26 August 2026.

Hyperlink:
https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2026.1922397/full

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Sleep Disorders / Narcolepsy

New patient-reported tool developed to measure the everyday impact of narcolepsy type 1

Researchers evaluated the Functional Impacts of Narcolepsy Instrument using data from phase 3 clinical trials in narcolepsy type 1. The tool is designed to capture how symptoms affect patients’ everyday functioning and could provide a more standardised way to measure treatment-relevant changes beyond conventional symptom counts.

Hyperlink:
https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2026.1884901/abstract