Representative photomicrographs of TUNEL stained anterior hippocampus from sham/ DNAase treated (A), sham at p11 (B, D) and at p18 (F, G) and NT at p11 (C, E) and at p18 (H, I) treated male and female mice with details (A’-I’). Additional high magnification detail panels are shown to demonstrate karyorrhexis documented with DNAse treatment (A”) and pyknosis with nuclear shrinkage in a low basal level in the sham (B”) and more prominent in NT injure mice (C”).