Figure 3.

Expression of the KOR in rat brain. L: low, M: moderate, H: high expression. Abbreviations. ARC: arcuate nucleus, hypothalamus, AMY: amygdala, BLA: basolateral nucleus, amygdala, BNST: bed nucleus of the stria terminalis, C: cerebellum, CC: corpus collosum, CeA: central nucleus, amygdala, CI: claustrum, CL: centrolateral thalamus, CM: centromedial thalamus, COA: cortical nucleus, amygdala, CPU: caudate putamen, DMH: dorsomedial hypothalamus, DMR: dorsal and medial raphe, DR: dorsal raphe, DTN: dorsal tegmental nucleus, EN: endopiriform cortex, GP: globus pallidus, HPC: hippocampus, IC: inferior colliculus, IP: interpeduncular nucleus, LC: locus coeruleus, LD: laterodorsal thalamus, LH: lateral hypothalamus, LRN: lateral reticular nucleus, ME: median eminence, MeA: median nucleus, amygdala, NAc: nucleus accumbens, NST: nucleus tractus solitarius, NL: neuronal lobe, pituitary, NRGC: nucleus reticularis gigantocellularis, OB: olfactory bulb, OCX: occipital cortex, PAG: periaqueductal gray, PBN: parabrachial nucleus, PCX: parietal cortex, PFC: prefrontal cortex, PIR: piriform cortex, PNR: pontine reticular, POA: preoptic area, PV: paraventricular thalamus, PVN: paraventricular hypothalamus, RE: reuniens thalamus, RM: raphe magnus, S: septum, SC: superior colliculus, SN: substantia nigra, STN: spinal trigeminal nucleus , Sub: subiculum, TCX: temporal cortex, Th: thalamus, TU: olfactory tubercule, VMH: ventromedial hypothalamus, VP: ventral pallidum, VR: ventral raphe, VTA: ventral tegmental area, Zi: zona incerta. [Adapted from Le Merrer et al. (2009)].