Figure 10.

P2Y₁ and NK1 receptor immunolabeling are present in the preBötC (PBC). A, Low-power (10×) image of a medullary slice illustrating immunolabeling for NK1R (green) and P2Y₁R (red) in the scNA and preBötC. B–D, Higher-power (40×) images of NK1R (C; green) and P2Y₁R (D; red) immunolabeling in the preBötC region (boxed area in A) alone (C, D) and overlaid (B). The arrowheads in B indicate P2Y₁R-expressing preBötC neurons. The arrows indicate P2Y₁ and NK1R colocalization, seen as yellow, in some preBötC neurons.