Fig. 4.
Quantitation of cFos-IR in the VLM in response to peripheral injection of either 0.9% saline or 1 mg/kg naloxone, followed 30 min later by PVN injection of either 0.9% saline or 1 μg NPY. Increases in cFos-IR were seen only with PVN NPY injection with food consumption. *Significant from sal/sal control. Error bars represent SEM.