NUCB2 and Hypoglycemia: Using Fluorogold as a retrograde tracer, Bonnet et al. [11] also shows that hypoglycemia-activated nesfatinergic neurons in the DMNV project to the stomach and pancreas, and that insulin selectively activates a fraction of nesfatin-1 neurons in the A2/C2 catecholaminergic hindbrain group [11].