The transcript levels of Gsr, identified using PCR arrays in the blood of 9 AT mice vs. 7 WT controls, with a mean age of 54.6 ± 3.5 weeks (Figure 3), as well as in the blood of mild AD patients [24], were validated in independent mice groups of 21 AT vs. 12 WT controls, with a mean age of 48.5 ± 4.9 weeks. This evidence concerns the gene GSR and Alzheimer disease.