Figure 9.
Photomicrographs depicting CCK-induced cFos expression (black nuclear label) within the lateral parabrachial nucleus (laPBN) in a nonlesioned rat (intact; A) and in a rat with a toxin-induced lesion of DbH-positive neurons (lesioned; B). Tissue sections are double labeled for DbH; note the reduced DbH fiber labeling but normally elevated cFos expression in the lesioned rat (B). Scale bar in A applies also to B.