Figure 6.
Plasma corticosterone levels in unrestrained (A) and restrained (B) male and female, control and stressed mice before and after SNI (each group contained n = 6–10 mice). (A) Within the unrestrained group, repeated-measures ANOVA demonstrates a main effect for SNI (P < 0.01) and for Stress (P < 0.05) with a significant difference between these groups (P < 0.05). (B) Within the restrained group, repeated-measures ANOVA demonstrates a main effect of SNI (P < 0.001) and for stress (P < 0.005). Post-hoc analysis demonstrates that a significant effect of sex (P < 0.01) was revealed in naive and post-SNI mice, with higher levels of plasma corticosterone in males relative to females. Error SEM. ANOVA, analysis of variance; SNI, spared nerve injury.