MAPT and Alzheimer disease: The data showed that mice inoculated with the old‐Tg mice brain extract developed more phospho‐tau pathology compared to 3xTg‐AD mice treated with the human AD brain extract according to the results with both the AT8 antibody (increase of 74% ± 4.27% of the tau load, one‐way ANOVA, F(2, 13) = 4.722, p = 0.0287, Tukey's multiple comparisons tests, Figure 2A,B) and PHF1 antibody (increase of 74% ± 3.76% of the tau load, one‐way ANOVA, F(2, 14) = 6.944, p = 0.0080, Tukey's multiple comparisons tests, Figure 2C,D).