α‐Synuclein RT‐QuIC assay in cerebrospinal fluid of patients with dementia with Lewy bodies

We applied RT‐QuIC assay to detect α‐synuclein aggregates in cerebrospinal fluid (CSF) of patients with suspected Creutzfeldt–Jakob disease who had a neuropathological diagnosis of dementia with Lewy bodies (DLB) (n = 7), other neurodegenerative diseases with α‐synuclein mixed pathology (n = 20), or...

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Detalles Bibliográficos
Autores principales: Bongianni, Matilde, Ladogana, Anna, Capaldi, Stefano, Klotz, Sigrid, Baiardi, Simone, Cagnin, Annachiara, Perra, Daniela, Fiorini, Michele, Poleggi, Anna, Legname, Giuseppe, Cattaruzza, Tatiana, Janes, Francesco, Tabaton, Massimo, Ghetti, Bernardino, Monaco, Salvatore, Kovacs, Gabor G., Parchi, Piero, Pocchiari, Maurizio, Zanusso, Gianluigi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Brief Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6801172/
https://www.ncbi.nlm.nih.gov/pubmed/31599499
http://dx.doi.org/10.1002/acn3.50897
Descripción
Sumario:We applied RT‐QuIC assay to detect α‐synuclein aggregates in cerebrospinal fluid (CSF) of patients with suspected Creutzfeldt–Jakob disease who had a neuropathological diagnosis of dementia with Lewy bodies (DLB) (n = 7), other neurodegenerative diseases with α‐synuclein mixed pathology (n = 20), or without Lewy‐related pathology (n = 49). The test had a sensitivity of 92.9% and specificity of 95.9% in distinguishing α‐synucleinopathies from non‐α‐synucleinopathies. When performed in the CSF of patients with DLB (n = 36), RT‐QuIC was positive in 17/20 with probable DLB, 0/6 with possible DLB, and 0/10 with Alzheimer disease. These results indicate that RT‐QuIC for α‐synuclein is an accurate test for DLB diagnosis.

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