PIR and type 2 diabetes mellitus: Post hoc comparisons confirmed significantly fewer cells in the CA1, CA3, Pir, BLA, and DMT regions of the STZ + SE group compared with the Veh, STZ, and Veh + SE groups (p < 0.002 for all regions), as illustrated in Figure 1 and Figure 2, indicating that the combined condition of T2DM and SE produced a greater reduction in cell number than would be expected from their independent effects.