Abstract

This issue of the Journal of Prevention of Alzheimer’s Disease (AD) includes a timely Clinical Trials on AD Task Force Report on promising blood tests for AD and related disorders (1). It highlights the promise of recently developed plasma amyloid-β42/40 (Aβ42/40) measurements for the assessment of neuritic plaque burden (e.g., reference 2), ultrasensitive neurofilament light (NfL) measurements for the assessment of ongoing neuroaxonal injury in a wide range of neurological disorders (3), and their potential roles in evaluation of interventions to treat and prevent the clinical onset of AD. It also considers recently developed plasma total-tau measurements, an indicator of neuronal injury and/or Aβ-mediated tau secretion (4), plasma phospho-tau measurements, a potential indicator of neurofibrillary tangle burden, and the ongoing effort to develop high-dimensional plasma genomic, transcriptomic, metabolomic, lipidomic, and proteomic profiles.

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