A. Beta-amyloid peptides inside neurons interrupt microtubule formation and activity B. Beta-amyloid peptides are deposited outside neurons, but are not removed, and form plaques C. Beta-amyloid peptides coalesce inside the neuron to form paired helical filaments D. Beta-amyloid peptides form neurofibrillary tangles, which can severely impair neuronal transport and cause cell death E. Beta-amyloid becomes hyperphosphorylated, significantly interrupting its function inside the neuron F. Unsure

A. A decreased ratio of beta-amyloid 42/40 is a marker for Alzheimer's disease B. The beta-amyloid 42/40 ratio can be measured via PET scan C. Beta-amyloid 42 and 40 can be found in plasma but not cerebrospinal fluid D. Beta-amyloid 42 is more common than beta-amyloid 40 E. Beta-amyloid 40 aggregates and deposits in the brains of those with Alzheimer's disease F. Unsure

A. CAD106 B. Lecanemab C. Aducanumab D. Amilomotide E. Atuzaginstat F. Unsure