Author:
Ashton Nicholas J.,Suárez-Calvet Marc,Heslegrave Amanda,Hye Abdul,Razquin Cristina,Pastor Pau,Sanchez-Valle Raquel,Molinuevo José L.,Visser Pieter Jelle,Blennow Kaj,Hodges Angela K.,Zetterberg Henrik
Abstract
Abstract
Background
Results from recent clinical studies suggest that cerebrospinal fluid (CSF) biomarkers that are indicative of Alzheimer’s disease (AD) can be replicated in blood, e.g. amyloid-beta peptides (Aβ42 and Aβ40) and neurofilament light chain (NFL). Such data proposes that blood is a rich source of potential biomarkers reflecting central nervous system pathophysiology and should be fully explored for biomarkers that show promise in CSF. Recently, soluble fragments of the triggering receptor expressed on myeloid cells 2 (sTREM2) protein in CSF have been reported to be increased in prodromal AD and also in individuals with TREM2 rare genetic variants that increase the likelihood of developing dementia.
Methods
In this study, we measured the levels of plasma sTREM2 and plasma NFL using the MesoScale Discovery and single molecule array platforms, respectively, in 48 confirmed TREM2 rare variant carriers and 49 non-carriers.
Results
Our results indicate that there are no changes in plasma sTREM2 and NFL concentrations between TREM2 rare variant carriers and non-carriers. Furthermore, plasma sTREM2 is not different between healthy controls, mild cognitive impairment (MCI) or AD.
Conclusion
Concentrations of plasma sTREM2 do not mimic the recent changes found in CSF sTREM2.
Publisher
Springer Science and Business Media LLC
Subject
Cognitive Neuroscience,Neurology (clinical),Neurology
Cited by
24 articles.
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