Table 1 Subject demographics TRT CU (N = 6) MCI (N = 1) AD (N = 6) Age 64.3 ± 5.7 71.0 61.0 ± 3.0 Females (%) 50% 100% 17% MMSE 29.7 ± 0.5 28.0 20.7 ± 2.0 Longitudinal CU (N = 11) MCI (N = 12) AD (N = 7) Age 66.4 ± 7.3 67.4 ± 6.7 60.4 ± 5.4 Females (%) 27% 33% 14% MMSE 29.4 ± 0.5 27.2 ± 2.5 25.3 ± 2.3 Values are depicted as M ± SD