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July 11, 2017; 89 (2) Article

CSF sAPPβ, YKL-40, and neurofilament light in frontotemporal lobar degeneration

Daniel Alcolea, Eduard Vilaplana, Marc Suárez-Calvet, Ignacio Illán-Gala, Rafael Blesa, Jordi Clarimón, Albert Lladó, Raquel Sánchez-Valle, José L. Molinuevo, Guillermo García-Ribas, Yaroslau Compta, María José Martí, Gerard Piñol-Ripoll, Guillermo Amer-Ferrer, Aina Noguera, Ana García-Martín, Juan Fortea, Alberto Lleó
First published June 7, 2017, DOI: https://doi.org/10.1212/WNL.0000000000004088
Daniel Alcolea
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Eduard Vilaplana
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Marc Suárez-Calvet
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Ignacio Illán-Gala
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Rafael Blesa
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Jordi Clarimón
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Albert Lladó
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Raquel Sánchez-Valle
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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José L. Molinuevo
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Guillermo García-Ribas
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Yaroslau Compta
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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María José Martí
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Gerard Piñol-Ripoll
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Guillermo Amer-Ferrer
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Aina Noguera
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Ana García-Martín
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Juan Fortea
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Alberto Lleó
From the Department of Neurology (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., J.F., A. Lleó), Institut d'Investigacions Biomèdiques Sant Pau–Hospital de Sant Pau, Universitat Autònoma de Barcelona; Alzheimer's Disease and Other Cognitive Disorders Unit (A. Lladó, R.S.-V., J.L.M.), Department of Neurology, Hospital Clínic, Institut d'Investigació Biomèdica August Pi I Sunyer, Barcelona; Servicio de Neurología (G.G.-R.), Hospital Universitario Ramón y Cajal, Madrid; Parkinson's Disease and Movement Disorders Unit (Y.C., M.J.M.), Neurology Service, Institute of Clinical Neurosciences, Hospital Clínic/IDIBAPS and University of Barcelona; Unitat de Trastorns Cognitius (G.P.-R.), Hospital Santa Maria, Lleida; Unidad de Neurología Cognitiva (G.A.-F., A.N., A.G.-M.), Servicio de Neurología, Hospital Universitari Son Espases, Palma de Mallorca; and Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (D.A., E.V., M.S.-C., I.I.-G., R.B., J.C., Y.C., M.J.M., J.F., A. Lleó), Madrid, Spain.
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Full PDF
Citation
CSF sAPPβ, YKL-40, and neurofilament light in frontotemporal lobar degeneration
Daniel Alcolea, Eduard Vilaplana, Marc Suárez-Calvet, Ignacio Illán-Gala, Rafael Blesa, Jordi Clarimón, Albert Lladó, Raquel Sánchez-Valle, José L. Molinuevo, Guillermo García-Ribas, Yaroslau Compta, María José Martí, Gerard Piñol-Ripoll, Guillermo Amer-Ferrer, Aina Noguera, Ana García-Martín, Juan Fortea, Alberto Lleó
Neurology Jul 2017, 89 (2) 178-188; DOI: 10.1212/WNL.0000000000004088

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Abstract

Objective: To analyze the clinical utility of 3 CSF biomarkers and their structural imaging correlates in a large cohort of patients with different dementia and parkinsonian syndromes within the spectrum of frontotemporal lobar degeneration (FTLD).

Methods: We analyzed 3 CSF biomarkers (YKL-40, soluble β fragment of amyloid precursor protein [sAPPβ], neurofilament light [NfL]) and core Alzheimer disease (AD) biomarkers (β-amyloid1-42, total tau, phosphorylated tau) in patients with FTLD-related clinical syndromes (n = 159): behavioral variant of frontotemporal dementia (n = 68), nonfluent (n = 23) and semantic (n = 19) variants of primary progressive aphasia, progressive supranuclear palsy (n = 28), and corticobasal syndrome (n = 21). We also included patients with AD (n = 72) and cognitively normal controls (CN; n = 76). We compared cross-sectional biomarker levels between groups, studied their correlation with cortical thickness, and evaluated their potential diagnostic utility.

Results: Patients with FTLD-related syndromes had lower levels of sAPPβ than CN and patients with AD. The levels of sAPPβ showed a strong correlation with cortical structural changes in frontal and cingulate areas. NfL and YKL-40 levels were high in both the FTLD and AD groups compared to controls. In the receiver operating characteristic analysis, the sAPPβ/YKL-40 and NfL/sAPPβ ratios had areas under the curve of 0.91 and 0.96, respectively, distinguishing patients with FTLD from CN, and of 0.84 and 0.85, distinguishing patients with FTLD from patients with AD.

Conclusions: The combination of sAPPβ with YKL-40 and with NfL in CSF could be useful to increase the certainty of the diagnosis of FTLD-related syndromes in clinical practice.

Classification of evidence: This study provides Class III evidence that CSF levels of sAPPβ, YKL-40, and NfL are useful to identify patients with FTLD-related syndromes.

GLOSSARY

Aβ=
β-amyloid;
AD=
Alzheimer disease;
AUC=
area under the curve;
CI=
confidence interval;
CN=
cognitively normal controls;
FTLD=
frontotemporal lobar degeneration;
HC=
Hospital Clínic;
HSP=
Hospital de la Santa Creu i Sant Pau;
MMSE=
Mini-Mental State Examination;
NfL=
neurofilament light;
PSP=
progressive supranuclear palsy;
p-tau=
phosphorylated tau;
sAPPβ=
soluble β fragment of amyloid precursor protein;
t-tau=
total tau

Footnotes

  • Go to Neurology.org for full disclosures. Funding information and disclosures deemed relevant by the authors, if any, are provided at the end of the article.

  • Supplemental data at Neurology.org

  • Received December 1, 2016.
  • Accepted in final form April 4, 2017.
  • © 2017 American Academy of Neurology
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Topics Discussed

  • MRI
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  • Frontotemporal dementia
  • Cognitive aging
  • Assessment of cognitive disorders/dementia

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