Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease

Neuroinflammation is a common feature in Alzheimer’s (AD) and Parkinson’s (PD) disease. In the last few decades, a testable hypothesis was proposed that protein-unfolding events might occur due to neuroinflammatory cascades involving alterations in the crosstalk between glial cells and neurons. Here...

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Main Authors: Víctor Antonio Blanco-Palmero, Marcos Rubio-Fernández, Desireé Antequera, Alberto Villarejo-Galende, José Antonio Molina, Isidro Ferrer, Fernando Bartolome, Eva Carro
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/9/9/1094
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author Víctor Antonio Blanco-Palmero
Marcos Rubio-Fernández
Desireé Antequera
Alberto Villarejo-Galende
José Antonio Molina
Isidro Ferrer
Fernando Bartolome
Eva Carro
author_facet Víctor Antonio Blanco-Palmero
Marcos Rubio-Fernández
Desireé Antequera
Alberto Villarejo-Galende
José Antonio Molina
Isidro Ferrer
Fernando Bartolome
Eva Carro
author_sort Víctor Antonio Blanco-Palmero
collection DOAJ
description Neuroinflammation is a common feature in Alzheimer’s (AD) and Parkinson’s (PD) disease. In the last few decades, a testable hypothesis was proposed that protein-unfolding events might occur due to neuroinflammatory cascades involving alterations in the crosstalk between glial cells and neurons. Here, we tried to clarify the pattern of two of the most promising biomarkers of neuroinflammation in cerebrospinal fluid (CSF) in AD and PD. This study included cognitively unimpaired elderly patients, patients with mild cognitive impairment, patients with AD dementia, and patients with PD. CSF samples were analyzed for YKL-40 and C-reactive protein (CRP). We found that CSF YKL-40 levels were significantly increased only in dementia stages of AD. Additionally, increased YKL-40 levels were found in the cerebral orbitofrontal cortex from AD patients in agreement with augmented astrogliosis. Our study confirms that these biomarkers of neuroinflammation are differently detected in CSF from AD and PD patients.
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spelling doaj.art-3ec417ac598c44d58683dbd256fa4a562023-11-22T12:06:55ZengMDPI AGBiomedicines2227-90592021-08-0199109410.3390/biomedicines9091094Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s DiseaseVíctor Antonio Blanco-Palmero0Marcos Rubio-Fernández1Desireé Antequera2Alberto Villarejo-Galende3José Antonio Molina4Isidro Ferrer5Fernando Bartolome6Eva Carro7Network Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNetwork Center for Biomedical Research in Neurodegenerative Diseases (CIBERNED), 28031 Madrid, SpainNeuroinflammation is a common feature in Alzheimer’s (AD) and Parkinson’s (PD) disease. In the last few decades, a testable hypothesis was proposed that protein-unfolding events might occur due to neuroinflammatory cascades involving alterations in the crosstalk between glial cells and neurons. Here, we tried to clarify the pattern of two of the most promising biomarkers of neuroinflammation in cerebrospinal fluid (CSF) in AD and PD. This study included cognitively unimpaired elderly patients, patients with mild cognitive impairment, patients with AD dementia, and patients with PD. CSF samples were analyzed for YKL-40 and C-reactive protein (CRP). We found that CSF YKL-40 levels were significantly increased only in dementia stages of AD. Additionally, increased YKL-40 levels were found in the cerebral orbitofrontal cortex from AD patients in agreement with augmented astrogliosis. Our study confirms that these biomarkers of neuroinflammation are differently detected in CSF from AD and PD patients.https://www.mdpi.com/2227-9059/9/9/1094Alzheimer’s diseaseParkinson’s diseaseYKL-40C-reactive proteinCSF and plasma biomarkersinflammation
spellingShingle Víctor Antonio Blanco-Palmero
Marcos Rubio-Fernández
Desireé Antequera
Alberto Villarejo-Galende
José Antonio Molina
Isidro Ferrer
Fernando Bartolome
Eva Carro
Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
Biomedicines
Alzheimer’s disease
Parkinson’s disease
YKL-40
C-reactive protein
CSF and plasma biomarkers
inflammation
title Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
title_full Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
title_fullStr Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
title_full_unstemmed Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
title_short Increased YKL-40 but Not C-Reactive Protein Levels in Patients with Alzheimer’s Disease
title_sort increased ykl 40 but not c reactive protein levels in patients with alzheimer s disease
topic Alzheimer’s disease
Parkinson’s disease
YKL-40
C-reactive protein
CSF and plasma biomarkers
inflammation
url https://www.mdpi.com/2227-9059/9/9/1094
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