ATP7A and Alzheimer disease: Consistently, it was observed in the MC1 loading a higher trend in those 3xTg‐AD mice injected with old‐Tg mice brain extracts than with human AD or PBS (variation of 63% ± 4.71%, one‐way ANOVA, F(2, 13) = 3.549, p = 0.0589, Tukey's multiple comparisons tests, Figure 2E,F).