CSF markers of neurodegeneration Alzheimer’s and Lewy body pathology in isolated REM sleep behavior disorder

Autor: Amaia Muñoz-Lopetegi, Simone Baiardi, Mircea Balasa, Angela Mammana, Gerard Mayà, Marcello Rossi, Mónica Serradell, Corrado Zenesini, Alice Ticca, Joan Santamaria, Sofia Dellavalle, Carles Gaig, Alex Iranzo, Piero Parchi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: npj Parkinson's Disease, Vol 10, Iss 1, Pp 1-9 (2024)
Druh dokumentu: article
ISSN: 2373-8057
DOI: 10.1038/s41531-024-00770-7
Popis: Abstract We investigated the biomarker profile of neurodegeneration, Alzheimer’s and Lewy body pathology in the CSF of 148 polysomnography-confirmed patients with isolated REM sleep behavior disorder (IRBD), a condition that precedes Parkinson’s disease (PD) and dementia with Lewy bodies (DLB). We assessed misfolded α-synuclein (AS) by RT-QuIC assay, amyloid-beta peptides (Aβ42 and Aβ40), phosphorylated tau (p-tau), and total tau (t-tau) by CLEIA and neurofilament light chain (NfL) by ELISA. We detected AS in 75.3% of patients, pathologically decreased Aβ42/Aβ40 ratio in 22.5%, increased p-tau in 15.5%, increased t-tau in 14.9%, and elevated NfL in 14.7%. After a mean follow-up of 2.48 ± 2.75 years, 47 (38.1%) patients developed PD (n = 24) or DLB (n = 23). At CSF collection, AS positivity [HR 4.05 (1.26–12.99), p = 0.019], mild cognitive impairment [3.86 (1.96–7.61), p
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