In the ischemia-operated group, however, the number of NeuN+ neurons was significantly decreased in the SP of the CA1 region 5 days following ischemia-reperfusion (Table I and Fig. 2E), and, at this time point, many F-J B+ cells were observed in the SP of the CA1 region (Table I and Fig. 2F). The gene discussed is RBFOX3; the disease is ischemia.