Superior parietal lobule (AD 0.54% vs. ND 0.3%, AD/ND ratio = 1.8); Locus coeruleus (AD 2.2% vs. ND 0.29%, AD/ND ratio = 7.6); Temporal lobe (AD 1.18% vs. ND 0.6%, AD/ND ratio = 2); Visual cortex (AD 0.56% vs. ND 0.47%, AD/ND ratio = 1.2); Superior frontal gyrus (AD 1.36% vs. ND 0.47%, AD/ND ratio = 2.9); Mid-frontal gyrus (AD 0.63% vs. ND 0.55%, AD/ND ratio = 1.1) Cerebellum, a brain region largely spared in AD, demonstrated very little immunoreactivity for C/EBPβ (not shown). This evidence concerns the gene CEBPB and Alzheimer disease.