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Título
Investigating the prognostic role of peripheral inflammatory markers in mild cognitive impairment
Autor
Año del Documento
2023
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Journal of Clinical Medicine, 2023, Vol. 12, Nº. 13, 4298
Résumé
Growing evidence suggests that neuroinflammation plays a critical role in the pathogenesis of neurodegenerative diseases. Peripheral markers of inflammation, including blood cell counts and their ratios, such as the neutrophil-to-lymphocyte ratio (NLR), have been reported as an easily accessible and reliable proxy of central nervous system inflammation. However, the role of peripheral inflammation in dementia and Mild Cognitive Impairment (MCI) still needs to be clarified. In the current study, we aimed to assess the prognostic role of the NLR and other peripheral markers of inflammation in a sample of 130 amnestic MCI, followed up for two to five years. The Mini-Mental state examination (MMSE) score at baseline and follow-up visits was used to assess global cognitive status at each visit and the degree of cognitive decline over time. Baseline peripheral markers of inflammation included blood cell counts and ratios, specifically the NLR, the platelet-to-lymphocyte ratio (PLR), the monocyte-to-lymphocyte ratio (MLR), and the systemic immune inflammation index (SII). After classifying subjects into CONVERTERS and non-CONVERTERS (respectively, patients converting to dementia and subjects showing stability at the last available follow-up), we compared peripheral markers of inflammation among groups ed correlated them with cognitive measures, testing the ability of significant factors to predict conversion to dementia. In our cohort, CONVERTERS showed lower baseline MMSE scores (p-value = 0.004) than non-CONVERTERS. In addition, CONVERTERS had statistically elevated NLR (p-value = 0.005), PLR (p-value = 0.002), and SII levels (p-value = 0.015), besides a lower number of lymphocytes (p-value = 0.004) compared with non-CONVERTERS. In a logistic regression analysis, baseline MMSE scores and NLR predicted conversion to dementia. Tertiles analysis showed that MCI with the highest NLR values had a higher conversion risk. Our study supports the hypothesis that a dysregulation of peripheral inflammation involving both lymphocytes and neutrophils may play a role in the pathogenesis of dementia, even at the early stages of neurodegeneration, as in the MCI condition.
Materias (normalizadas)
Cognition disorders
Mild Cognitive Impairment
Dementia
Demencia
Nervous system - Degeneration
Sistema nervioso - Degeneración
Neurology
Neurology
Neuroimmunology
Neuroinmunología
Inflammation
Inflamación
Clinical medicine
Materias Unesco
32 Ciencias Médicas
3205.07 Neurología
6104.01 Procesos Cognitivos
ISSN
2077-0383
Revisión por pares
SI
Nota
El estudio fue apoyado por el Proyecto AGING del Departamento de Medicina Traslacional (DIMET) de la Universidad del Piamonte Oriental, Novara, Italia
Version del Editor
Propietario de los Derechos
© 2023 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
Aparece en las colecciones
Fichier(s) constituant ce document
Tamaño:
1.431Mo
Formato:
Adobe PDF
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