Relation between Alpha-Synuclein and Core CSF Biomarkers of Alzheimer's Disease


Por: Monge-Garcia, V, Garcia-Ayllon, M, Saez-Valero, J, Sanchez-Paya, J, Navarrete-Rueda, F, Manzanares-Robles, J, Gasparini-Berenguer, R, Romero-Lorenzo, R, Cortes-Gomez, M and Monge-Argiles, J

Publicada: 1 sep 2021 Ahead of Print: 10 sep 2021
Resumen:
Background: Alzheimer's disease (AD) is characterized by the presence of beta-amyloid plaques and neurofibrillary tangles, while Lewy body dementia (LBD) is characterized by alpha-synuclein (alpha-syn) inclusions. Some authors examine alpha-syn protein in the neurodegeneration process of AD and propose to consider cerebrospinal fluid (CSF) alpha-syn as a possible additional biomarker to the so-called "core" of AD. Objective: To determine whether there is a correlation between alpha-syn levels and "core" AD biomarkers in patients with mild cognitive impairment (MCI). Materials and methods: In total, 81 patients in the early stages of MCI were selected from the outpatient dementia consultation in Alicante General Hospital. Using a cross-sectional case-control design, patients were analyzed in four groups: stable MCI (MCIs; n = 25), MCI due to AD (MCI-AD; n = 32), MCI due to LBD (MCI-LBD; n = 24) and a control group of patients with acute or chronic headache (Ctrl; n = 18). Correlation between CSF protein levels in the different groups was assessed by the Rho Spearman test. Results: We found positive correlations between T-tau protein and alpha-syn (rho = 0.418; p value < 0.05) and p-tau(181p) and alpha-syn (rho = 0.571; p value < 0.05) exclusively in the MCI-AD group. Conclusion: The correlation found between alpha-syn and tau proteins in the first stages of AD support the involvement of alpha-syn in the pathogenesis of AD. This result may have clinical and diagnostic implications, as well as help to apply the new concept of "precision medicine" in patients with MCI.
ISSN: 16489144





MEDICINA-LITHUANIA
Editorial
Kauno Medicinos Universitetas, ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND, Lituania
Tipo de documento: Article
Volumen: 57 Número: 9
Páginas:
WOS Id: 000699869600001
ID de PubMed: 34577877
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