Figure 5. Brain serotonin levels in offspring reared by Clock mutant mice.

(A, B) Serotonin levels in the brain of offspring reared by wild-type mice (Wt-r) and Clock mutant mice (Het-r) at 14 days old (A) and 7 weeks old (B). Data are presented as mean ± SEM (n = 5–8, n.s.: not significant, *p<0.05, Student’s t test). t(8) = 2.45, p<0.05 in (A), t(14) = 0.530, p>0.05 in (B).