Neurodegenerative disease biomarkers Aβ1-40, Aβ1-42, tau, and p-tau181in the vervet monkey cerebrospinal fluid: Relation to normal aging, genetic influences, and cerebral amyloid angiopathy

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Neurodegenerative disease biomarkers Aβ1–40, Aβ1–42, tau, and p‐tau181 in the vervet monkey cerebrospinal fluid: Relation to normal aging, genetic influences, and cerebral amyloid angiopathy

Background The Caribbean vervet monkey (Chlorocebus aethiops sabaeus) is a potentially valuable animal model of neurodegenerative disease. However, the trajectory of aging in vervets and its relationship to human disease is incompletely understood. Methods To characterize biomarkers associated with neurodegeneration, we measured cerebrospinal fluid (CSF) concentrations of Aβ1-40, Aβ1-42, tota...

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The Cerebrospinal Fluid Aβ1–42/Aβ1–40 Ratio Improves Concordance with Amyloid-PET for Diagnosing Alzheimer’s Disease in a Clinical Setting

BACKGROUND Evidence suggests that the concordance between amyloid-PET and cerebrospinal fluid (CSF) amyloid-β (Aβ) increases when the CSF Aβ1-42/Aβ1-40 ratio is used as compared to CSF Aβ1-42 levels alone. OBJECTIVE In order to test this hypothesis, we set up a prospective longitudinal study comparing the concordance between different amyloid biomarkers for Alzheimer's disease (AD) in a clini...

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Effect of long-term storage in biobanks on cerebrospinal fluid biomarker Aβ1-42, T-tau, and P-tau values

INTRODUCTION We studied the effect of long-term storage at -80°C on cerebrospinal fluid (CSF) biomarker levels. Our approach assumed consistency of mean biomarker levels in a homogenous Alzheimer's disease patient cohort over time. METHODS We selected 148 Alzheimer's disease samples that had inclusion dates equally distributed over the years 2001 to 2013 from our biobank. The concentrations o...

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Cerebrospinal fluid tau, p-tau 181 and amyloid-β38/40/42 in frontotemporal dementias and primary progressive aphasias.

BACKGROUND/AIMS We determined cerebrospinal fluid (CSF) concentrations of amyloid-β (Aβ)(1-38), Aβ(1-40), Aβ(1-42), total tau and phospho-tau (p-tau) in order to study their differential expression in frontotemporal dementia (FTD, n = 25) and primary progressive aphasia (PPA, n = 12) as compared to Alzheimer's dementia (AD, n = 25) and nondemented controls (n = 20). METHODS Commercially avail...

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Cerebrospinal fluid Aβ1-40 improves differential dementia diagnosis in patients with intermediate P-tau181P levels.

It is assumed that the concentration of amyloid-β1-40 (Aβ1-40) in cerebrospinal fluid (CSF) reflects the total amount of Aβ protein in the brain and thus allows a better interpretation of inter-individual differences in Aβ quantity than the Aβ1-42 concentration. In this study, Aβ1-40 was added to the existing CSF biomarker panel of Aβ1-42, total tau (T-tau), and phosphorylated tau (P-tau181P) i...

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ژورنال

عنوان ژورنال: Brain and Behavior

سال: 2018

ISSN: 2162-3279

DOI: 10.1002/brb3.903