A scRNAseq study of microglia post subarachnoid hemorrhage (SAH) compared to healthy mouse brain microglia identified three clusters in the SAH-affected brains (SMG-C5, SMG-C6, and SMG-C7), with all exhibiting inflammatory signatures accompanied by high expression of CCL, GALECTIN, TGFb, APP, and SPP1. The SMG-C5 cluster revealed high expression of Spp1, Lpl, Apoe, Ctsb, Lgals1, Lgals3, Fabp5, Mif, Lilrb4a, Cst7, and Vim (Figure 4). The gene discussed is SPP1; the disease is subarachnoid hemorrhage.