Expression levels were determined by real-time qRT-PCR of cortical tissue for the following genes: Ugt1a1, IigP1, Serping1, Srgn, Psmb8, Fkbp5, Ggta1, Gbp2, Amigo2, Fbln5 (LPS group); and Emp1, Clcf1, Slc10a6, Cd109, Cd14, Ptx4, S100a10, Ptgs2, B3gnt5, Tm4sf1, Sphk1, Tgm1 (ischemic stroke group); and Gfap, Lcn2, Serpina3n, Aspg1, Cxcl10, Timp1 (pan-reactive markers). The gene discussed is PTX4; the disease is ischemic stroke.