Figure 7. Semiquantitative analysis of FJB‐positive neurons in the CA1 hippocampus region (n=6/group).

The proportion of the FJB‐positive area (A), the number of FJB‐positive neurons (B), and the ratio of FJB‐positive neurons (C) were measured. CPR indicates cardiopulmonary resuscitation; FJB, fluoro‐jade B; NC, normoxic control; O2_CPR, ventilated with 100% O2 during CPR; O2_CPR+postresuscitation, ventilated with 100% O2 during CPR and the first 3 hours of postresuscitation; and O2_postresuscitation, ventilated with 100% O2 during the first 3 hours of postresuscitation. *P<0.05 compared with NC; **P<0.01 compared with NC; && P<0.01 compared with O2_CPR; # P<0.05 compared with O2_CPR+postresuscitation; ## P<0.01 compared with O2_CPR+postresuscitation; ×× P<0.01 compared with O2_postresuscitation.