Abstract
AbstractBackgroundAccurate, timely diagnosis of neuropsychiatric symptoms, in particular distinguishing primary psychiatric from neurological disorders and in younger people, can be challenging. Neurofilament light (NfL) and other blood biomarkers have shown promise to reduce the diagnostic odyssey and improve outcomes. The MiND Study in investigating the diagnostic utility of NfL and other markers, to distinguish neurological/neurodegenerative from psychiatric disorders, to lead to a widely available, routine screening blood test.MethodsWe assessed NfL, p‐tau181 and GFAP in broad cohorts, including: patients assessed for neurocognitive/psychiatric symptoms at Neuropsychiatry and other services, in a wide range of disorders including Alzheimer disease, frontotemporal dementia, schizophrenia, bipolar disorder, depression, functional neurological disorders, Niemann‐Pick Type C, epilepsy.ResultsUpdates on the The MiND Study progress and findings that NfL differentiated diverse neurodegenerative from psychiatric disorders, with 90+% accuracy, from over 500 patients/participants, will be presented, with real patient and family stories to demonstrate the challenges and potential clinical impact of The MiND Study. Plasma P‐tau181 levels distinguished Alzheimer disease (mainly younger sporadic), from non‐Alzheimer. As recruitment, sample analysis, data collection is ongoing, the most up to date results including GFAP, cognitive and neuroimaging markers, will be presented.ConclusionsNfL shows great promise as a diagnostic screening blood test, akin to a “CRP for the brain”. Plasma p‐tau181 shows strong diagnostic utility in younger‐onset Alzheimer disease. NfL could dramatically alter clinical care of patients with neuropsychiatric and neurological symptoms, improving outcomes for patients, their families, the healthcare system, and clinical trials, facilitating precision medicine algorithmic diagnostics incorporating other biomarkers and clinical/cognitive markers, for real‐world clinical settings.
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