A20 ameliorates intracerebral hemorrhage-induced inflammatory injury and intracerebral hemorrhage increases A20 expression, showing a peak after approximately one day (Takahashi et al., 2012); although these previous A20 results are similar to those of our present study, we found the A20 level was rapidly increased in our CCI model, which indicates differential A20 expression in different disease models. This evidence concerns the gene TNFAIP3 and intracerebral hemorrhage.