(A) Experimental timeline. (B) In males, plasma CORT was elevated in RQ-R adult offspring compared to the other groups. Plasma CORT was greater in restraint/recovery groups in adult female offspring (VEH-R/RQ-R vs. NR) and overall greater with prenatal RQ treatment (RQ-NR/RQ-R vs. VEH). E = embryonic day, P = postnatal day, HPA = Hypothalamic-Pituitary-Adrenal, VEH = vehicle, RQ = Resiquimod, NR = no restraint, R = restraint H-recovery, CORT = corticosterone, PVN = paraventricular nucleus of the hypothalamus, 3 V = 3rd ventricle, FITC = fluorescein isothiocyanate, IBA-1 = ionizing binding calcium adaptor molecule-1. *p < 0.05, **p < 0.01, ***p < 0.001, ****p<0.0001. Error bars represented as +/− SEM. n = 6–9 mice / group.