Figure 4.

(a) Correlations between nuclear receptor retinoic acid receptor-α (RAR-α)- and glucocorticoid receptor (GR)-immunoreactive (IR) cell number in the hypothalamic paraventricular nucleus (PVN); and (b) correlations between sucrose preference percentage and the corresponding plasma corticosterone (CORT) concentration. Note that the number of RAR-α-IR and GR-IR cells is based on pooled data from the four chronic treatment groups analyzed throughout the entire PVN as shown in Figures 3g and h; the value of sucrose preference percentage and corresponding plasma CORT is also based on pooled data from the four chronic treatment groups as shown in Figures 1b and d. *P<0.05; **P<0.01