TLR2 and ischemic stroke: We first evaluated the effect of IVIg on the protein expressions of TLR2, TLR4 and TLR8 in a cell culture model of ischemic neuronal injury in which primary mouse cortical neurons were subjected to conditions mimicking ischemic stroke, including glucose deprivation (GD) and combined oxygen and glucose deprivation (OGD) (Figure 1).