[11C]NE40 reported increased CNS CB2 expression in mice with elevated CB2 from artificial expression [193] and a mouse model of neurodegeneration [194], though there was no change in binding in a rat stroke model (despite CB2 expression being subtly increased and correlated with a macrophage/microglia marker, based on immunohistochemistry) [195]. Here, CNR2 is linked to Stroke.