AIF1 and Alzheimer disease: In white matter, there was a significant two‐way interaction between Iba1 (Figure 6B; interaction, F[1, 32]) = 4.795, p = 0.0359), whereby AD females showed higher Iba1 expression than both control females (Figure 6B; pIba1 = 0.0245) and AD males (Figure 6B; pIba1 = 0.0291).