IFNG and Alzheimer disease: Furthermore, epidermal thickness was lower in mice administered dexamethasone (35.7 ± 3.9 μm) and 0.25μg (27.8 ± 0.8 μm) and 2.5 μg (24.3 ± 2.5 μm) of IFN-γ-iExo than in the AD control group (73.6 ± 14.0 μm) (Figure 5D,G).