Among the downregulated genes, Gpr88, Rgs9, Enthd1, Olr59, P2ry12, Degs2, Pde10a, Neu2, Adora2a, and Slc22a6 were found to demonstrate significant downregulation in pathological phase of ischemic stroke (see Table 4). The gene discussed is PDE10A; the disease is ischemic stroke.