Alzheimer Blood Biomarkers Clinical Trial
Official title:
Threshold Values and Diagnostic Performance of Plasma Biomarkers of Alzheimer's Disease Compared With CSF Markers
.The goal of this interventional study is to estimate the diagnostic performance of plasma biomarkers of interest (Aβ40 and Aβ42, P-Tau and NFL), enabling discrimination between patients with and without a pathophysiological AD process. The main questions it aims to answer are: - to define a threshold value for each of the plasma, - to describe the correlations between the plasma biomarkers of interest and the other biological analyses performed as part of care, in particular triglyceridemia, cholesterolemia, glycemia and proteinemia, - to describe biomarker results in relation to comorbidities, in particular dyslipidemia and diabetes - to describe the final diagnosis and results obtained for plasma biomarkers, for patients with intermediate results according to the A/T/N classification (A-/T+ or A+/T-) Participants will be selected among patients undergoing lumbar puncture for the differential diagnosis of AD at Nancy University Hospital.
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