a, Representative coronal sections through the SFO from rats administered lentivirus. Top left, Neurons within the SFO express GFP. Top right, Adjacent section stained for NeuN. Scale bar, 250 μm. Bottom left, Autoradiograph indicative of ANGII binding in the SFO of rats administered LV-GFP. Bottom right, Autoradiograph indicative of ANGII binding in the SFO of rats administered LV-AS. Scale bar, 1 mm. b, Receptor autoradiography indicative of ANGII binding in the SFO and PVN. Administration of LV-AS significantly decreases (*p < 0.05) ANGII binding in the SFO but has no effect on the PVN (LV-GFP SFO, n = 8; LV-AS SFO, n = 8; LV-GFP PVN, n = 5; LV-AS PVN, n = 5).