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Synaptic, axonal damage and inflammatory cerebrospinal fluid biomarkers in neurodegenerative dementias.

Journal article
Authors Anna Antonell
Adrià Tort-Merino
José Ríos
Mircea Balasa
Sergi Borrego-Écija
Josep M Auge
Cristina Muñoz-García
Beatriz Bosch
Neus Falgàs
Lorena Rami
Oscar Ramos-Campoy
Kaj Blennow
Henrik Zetterberg
José L Molinuevo
Albert Lladó
Raquel Sánchez-Valle
Published in Alzheimer's & dementia : the journal of the Alzheimer's Association
Volume 16
Issue 2
Pages 262-272
ISSN 1552-5279
Publication year 2020
Published at Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry
Pages 262-272
Language en
Subject categories Neurochemistry


Synaptic damage, axonal neurodegeneration, and neuroinflammation are common features in Alzheimer's disease (AD), frontotemporal dementia (FTD), and Creutzfeldt-Jakob disease (CJD).Unicentric cohort of 353 participants included healthy control (HC) subjects, AD continuum stages, genetic AD and FTD, and FTD and CJD. We measured cerebrospinal fluid neurofilament light (NF-L), neurogranin (Ng), 14-3-3, and YKL-40 proteins.Biomarkers showed differences in HC subjects versus AD, FTD, and CJD. Disease groups differed between them except AD versus FTD for YKL-40. Only NF-L differed between all stages within the AD continuum. AD and FTD symptomatic mutation carriers presented differences with respect to HC subjects. Applying the AT(N) system, 96% subjects were positive for neurodegeneration if 14-3-3 was used, 94% if NF-L was used, 62% if Ng was used, and 53% if YKL-40 was used.Biomarkers of synapse and neurodegeneration differentiate HC subjects from neurodegenerative dementias and between AD, FTD, and CJD. NF-L and 14-3-3 performed similar to total tau when AT(N) system was applied.

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