Is the anti-Aβ40 vaccine ABvac40 safe over the long term, and does it produce durable, boostable immunological memory in early Alzheimer's disease?
NR-aMCI Pilot
A phase-II randomized controlled pilot study of nicotinamide riboside supplementation in older adults with amnestic mild cognitive impairment
Bottom Line: In this single-center phase-II pilot RCT of 42 completers, nicotinamide riboside safely doubled blood NAD+ but did not improve cognitive function, total cerebral blood flow, blood pressure, or arterial stiffness at 12 weeks; exploratory analyses suggested regional increases in hippocampal perfusion that require confirmation in larger trials.