Figure 4.
Corticosterone synthesis inhibitor blunts depressive-like behaviour in forced swimming test in n-3-deficient mice. n-3-deficient mice displayed (b) reduced swimming occurrence as compared with control diet mice. Metyrapone administration (75 mg kg−1) 90 min before forced swimming test prevented depressive-like behaviour in n-3-deficient mice (interaction: F1,27=7.486, P<0.05, two-way ANOVA; **P<0.01, Bonferroni's test, n=7–8 per group) that was not due to (a) locomotor activity changes (interaction: F1,27=1.407, P>0.05, diet effect: F1,27=1.795, P>0.05, treatment effect: F1,27=0.06567, P>0.05, two-way ANOVA, n=7–8 per group). Data are displayed as mean±s.e.m.