Table 2. T2* Measurements.
Mouse Groups | Left Cortex | Right Cortex | Left Hippocampus | Right Hippocampus | Cerebellum |
APP/PS1 Tg from Set 1 | 38.63±1.35 | 38.62±0.97 | 39.84±0.54 | 39.88±0.61 | 43.5±2.19 |
APP/PS1 Tg from Set 2 | 40.2±1.5 | 40.26±1.69 | 42.44±2.98 | 42.07±2.8 | 43.14±2.16 |
APP/PS1 Tg from set 3 | 44.6±1.08 | 42.32±1.58 | 44.57±2.5 | 45.22±2.64 | 44.97±2.51 |
Wild-type from set 1 | 42.2±0.99 | 41.97±1.02 | 42.2±0.99 | 43.23±1.47 | 43.5±3.65 |
p-values of Tg from set 1 compared to Tg from set 2 | 0.02156 | 0.01095 | 0.007489 | 0.01558 | 0.71402 |
p-values of Tg from set 1 compared to Tg from set 3 | <0.00001 | <0.00001 | <0.00001 | <0.00001 | 0.92865 |
p-values of Tg compared to WT from set 1 | <0.00001 | <0.00001 | <0.00001 | <0.00001 | 0.99863 |
Shows a comparison of the absolute T2* values in the different mouse groups and the p-values comparing different groups using a two-tailed Students t-test. This data indicates that sufficient USPIO-PEG-Aβ1-42 is able to cross the BBB in vivo and result in T2* changes in USPIO-PEG-Aβ1-42 injected APP/PS1 mice, which can be attributed to specific binding to Aβ plaques, given the significantly lower T2* measurements in areas of the brain affected with Aβ deposition (cortex and hippocampus).