Others, however, have shown that capillary pericytes also change the vessel diameter and CBF by stimuli, neuronal activation, or ischemia (Peppiatt et al., 2006; Yemisci et al., 2009; Hall et al., 2014; Pieper et al., 2014; Kisler et al., 2017b; Rungta et al., 2018), suggesting capillary pericytes also contribute to CBF regulation. Here, CEBPZ is linked to ischemia.