Pseudorabies virus (green) and herpes simplex virus (red) labeled neurons in the hypothalamus representing sympathetic (efferent) and sensory neurons (afferent) connected to fat multisynaptically

Pseudorabies virus (green) and herpes simplex virus (red) labeled neurons in the hypothalamus representing sympathetic (efferent) and sensory neurons (afferent) connected to fat multisynaptically