TREM2 and ischemic stroke: Concurrently, cellular sphericity and proportion of TREM2+ microglia peaked at 7 days post ischemia (Figure 2A,B; Figure S4, Supporting Information).[11] We then sorted microglia by FACS at day 7 post MCAO and performed bulk RNA‐Seq to further elucidate the transcriptional profiles of microglia in ischemic stroke.