Results showed that both types of exercise transiently elevated hippocampal BDNF levels (A) and persistently increased TrkB protein expression (B). However, only treadmill running significantly increased BDNF (C) and TrkB (D) in the amygdala. *P < 0.05 (compared to the control; ANOVA followed by Tukey's post hoc test, n= 6–9). Abbreviations: C, control; 0 h, immediately after the last run of exercise; 24 h, 24 h after the last run.