In addition, Weinstein et al. [52] studied a group of 169 NAFLD subjects performing β-amyloid and tau positron emission tomography (PET-CT), revealing a possible correlation between liver fibrosis (FIB-4) and early AD neuropathology, but without finding a clear association between β-amyloid or tau PET and prevalent NAFLD. This evidence concerns the gene MAPT and Alzheimer disease.