In addition, we found that, although expressed by most of the cells, the fluorescence intensity (median fluorescence intensity, MFI, assessed by FACS) of the expression of the reactive markers GFAP (Fig. 1B b12–13) and Vimentin (Fig. 1B b16–17), was significantly increased (8.8 and 3.2 fold, respectively) in AD astrocytes with respect to CTRL astrocytes (1757 ± 1746 vs. 199.2 ± 158.1 for GFAP, p < 0.01; and 65.5 ± 45.9 vs. 20.7 ± 7.7 for Vimentin, p < 0.05). The gene discussed is GFAP; the disease is Alzheimer disease.