Age, Group, and Sex effects on cytokine expression. Means ± SEM expression levels of IL-1β (top), IL-4 (middle) and IL-10 (bottom) across development. P: postnatal day. *p<0.05 difference between MS and CON. Different letters (a,b,c) designate p<0.05 difference between ages within the same sex (no effect of group). #p<0.05 difference between males and females, collapsed across groups. n=15–20/group/sex/time-point.