Figure 2.
Role of BChE in ghrelin metabolism and signaling in the brain. Top panel: Main organs, brain regions, and pathways involved in fear response. Red arrows indicate blood-borne delivery. Bottom panel: Key interacting centers: parvo-ventricular nucleus of the hypothalamus (PVN); dorsomedial and ventromedial prefrontal cortex (PFC); dorsal raphé nucleus (DRN); adrenal cortex; and pituitary gland. Arrows indicate direction of interactions. Green = activation; red = inhibition; and yellow = modulation.