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Longitudinal Dynamics Of Cerebrospinal Fluid Aꞵ, Ptau And Strem2 Reveal Predictive Preclinical Trajectories Of Alzheimer’S Pathology, Bahaaldin Helal

Electronic Thesis and Dissertation Repository

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder with limited early-stage treatment options. There is an urgent and unmet need for accurate biomarkers which can identify patients at risk for AD before cognitive symptoms emerge. Here I compared the performance of two analytical methods, univariate and multivariate classification, for identifying cognitively normal (CN) and mild cognitive impairment (MCI) patients based on their cerebrospinal fluid (CSF) biomarkers of Aβ42, pTau-181, sTREM2. Post-hoc analyses were then employed to assess patient progression in each of the SNF clusters. I found that SNF identified subgroups within the CN and MCI cohorts, based solely on …