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•स्क्रिनमा देखिने चुरोट: सुर्तीजन्य हानि न्यूनीकरण नीतिमा दक्षिण एसियाले अझै के छुटाइरहेको छ•नेपालमा पिसाब नलीको संक्रमण र एन्टिबायोटिक प्रतिरोधको बढ्दो संकट•Frontline Perspectives on Nursing Leadership in Nepal•Protecting the Smallest Lungs from the Hidden Grip of RSV in Kathmandu•The Heavy Burden of Bullying on Student Wellbeing in Nepal•The Emerging Landscape of Thyroid Health in Central Nepal•How a Recent Western Nepal Study is Redefining Anemia Diagnosis•How H. Pylori is Impacting the Health of Karnali’s High-Altitude Communities•Sweet Poison, Bitter Reality: The Unseen Diabetes Epidemic Among Nepal’s Youth•How Missing Checklists and Protocols are Costing Lives in Nepal’s ERs•स्क्रिनमा देखिने चुरोट: सुर्तीजन्य हानि न्यूनीकरण नीतिमा दक्षिण एसियाले अझै के छुटाइरहेको छ•नेपालमा पिसाब नलीको संक्रमण र एन्टिबायोटिक प्रतिरोधको बढ्दो संकट•Frontline Perspectives on Nursing Leadership in Nepal•Protecting the Smallest Lungs from the Hidden Grip of RSV in Kathmandu•The Heavy Burden of Bullying on Student Wellbeing in Nepal•The Emerging Landscape of Thyroid Health in Central Nepal•How a Recent Western Nepal Study is Redefining Anemia Diagnosis•How H. Pylori is Impacting the Health of Karnali’s High-Altitude Communities•Sweet Poison, Bitter Reality: The Unseen Diabetes Epidemic Among Nepal’s Youth•How Missing Checklists and Protocols are Costing Lives in Nepal’s ERs

Amyloid, p-tau, neurofilament light, and α-synuclein cerebrospinal fluid biomarkers across Alzheimer's disease, dementia with Lewy bodies, and Parkinson's disease.

Researchers

Marianna Rizzo, Charlotte E Teunissen, Henrik Zetterberg, Kaj Blennow, Gwendlyn Kollmorgen, Rejko Krüger, Sara B G Fernandes, Dag Aarsland, Olga Borejko, Michele Hu, Davit Chokoshvili, Jort E G B Vijverberg, Afina W Lemstra, Betty M Tijms, Gabor C Petzold, Kathrin Brockmann, Thomas Gasser, Giovanni B Frisoni, Jakub Hort, Zuzana Nedelska, Ann-Cecilie Hopøy, Tormod Fladby, Frank Jessen, Emrah Düzel, Annika Spottke, Günter U Höglinger, Sophie Mutel, Claire Chevalier, Rajaraman Krishnan, Pieter Jelle Visser, Stephanie J B Vos

Abstract

Mounting evidence suggests overlapping pathology across Alzheimer's disease (AD), dementia with Lewy bodies (DLB), and Parkinson's disease (PD), yet its extent and clinical implications remain unclear. Cerebrospinal fluid (CSF) amyloid beta (Aβ)42/40, phosphorylated tau 181 (p-tau181), neurofilament light chain (NfL), and total α-synuclein were centrally measured using fully-automated Elecsys immunoassays in 347 participants (European Platform for Neurodegenerative Diseases [EPND] cohort) and compared between groups. Associations of amyloid and tau positivity with cognitive and motor function were evaluated. Compared to controls, amyloid and tau levels were abnormal in DLB, but not in PD. Amyloid and tau positivity in DLB were associated with worse global cognitive outcomes, but not with motor performance. NfL levels were elevated across diseases, and total α-synuclein levels were associated with tau positivity. AD pathology is observed in DLB, and related to worse cognition, but it is less observed in PD. CSF NfL captures non-disease-specific processes, whereas CSF total α-synuclein likely reflects CSF tau positivity. Results can help patient management in clinical practice and trials.
Source: PubMed (PMID: 42841041)View Original on PubMed