Extended Data Figure 8. Expression of Grp in rodent brain.
a,b, In situ hybridization of mouse brain slices as in Figure 3a showing expression of Grp (purple) in parabrachial nucleus (PBN) (a) and nucleus tractus solitarius (NTS) (b). Bar, 200 μm. c-e, In situ hybridization of rat brain slices showing expression of Grp in PBN (c), NTS (d), RTN/pFRG (e). Bar, 200 μm. f, Tiled image showing GRP-positive projection (red) from RTN/pFRG region to preBötC region containing SST-positive neuron (green). Bar, 20 μm. g-i, Serial confocal optical sections (0.8 μm apart) through mouse preBötC stained for GRP (red) and SST (green) focusing on short segment of GRP-positive projection where a GRP puncta (red) directly abuts (arrowhead) an SST-positive neuron. Bar, 10 μm.