Hypothalamic OB-Rb (A), SOCS3 (B), NPY (C), AgRP (D), POMC (E) and CART (F) mRNA expression in adult male and female voles from large and small litters.

<p>Values are presented as mean±SE. Group differences are expressed as P<0.05, and bars with different letters differed significantly from each other. Ob-Rb, leptin receptor; SOCS3, suppressor of cytokine signaling 3; NPY, neuropeptide Y; AgRP, agouti-related peptide; POMC, pro-opiomelanocortin; CART; cocaine- and amphetamine-regulated transcript.