Imaging and post-mortem analyses of brains from schizophrenia patients have revealed that: (a) endothelial cells expressed less of the chemokine receptor CX3CR1 (37) and more ICAM1 (10); (b) perivascular macrophages expressed more CD163 (44); and (c) microglia expressed less CD11c (44). Here, ICAM1 is linked to schizophrenia.