Résumé
Le dosage combiné de trois biomarqueurs dans le liquide céphalorachidien a été établi en 2007 comme une composante essentielle à l’aide au diagnostic de la maladie d’Alzheimer. Ces biomarqueurs: la protéine tau, sa forme phosphorylée P-tau et les peptides amyloïdes sont altérés de manière précoce au cours de la maladie d’Alzheimer, mais restent insuffisants pour le diagnostic différentiel des autres démences. Les perspectives se portent donc sur le développement de nouveaux marqueurs permettant de différencier les démences et l’identification de biomarqueurs plasmatiques.
Abstract
Since 2007, the combined dosage of three biomarkers in the cerebrospinal fluid has been considered an essential component of procedures to help establish a diagnosis of Alzheimer’s disease (AD). These biomarkers include total-Tau proteins, phosphorylated variants of Tau and amyloid-beta peptides. Their levels are altered early during the course of AD but they are not useful for a differential diagnosis of other dementing disorders. Perspectives therefore focus on finding plasmatic biomarkers and developing new biomarkers that would aid discrimination between dementing disorders.
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Schraen-Maschke, S., Sergeant, N., Marzys, C. et al. Apports de la biologie dans le diagnostic des démences. Bio trib. mag. 28, 29–33 (2008). https://doi.org/10.1007/BF03001643
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DOI: https://doi.org/10.1007/BF03001643