AIF1 and Alzheimer disease: Consistent with microglia migrating toward vessels in AD and during brain inflammation53,54, we found that the distance between Iba1-labeled microglia/PVM somata and pericyte somata was reduced in the barrel cortex in vivo and in the cortex of perfusion-fixed ADxNG2-dsRedxIba-eGFP mice compared to in WT mice (Fig. 4h and Extended Data Fig. 6a,b).