Association of cerebrospinal fluid neurofilament light concentration with Alzheimer disease progression
IMPORTANCE The extent to which large-caliber axonal degeneration contributes to Alzheimer disease (AD) progression is unknown. Cerebrospinal fluid (CSF) neurofilament light (NFL) concentration is a general marker of damage to large-calibermyelinated axons. OBJECTIVE To test whether CSF NFL concentration is associated with cognitive decline and imaging evidence of neurodegeneration and white matter