Department of Anatomy, The Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
Abstract:
By a double-labeling method combining the retrograde tracing of horseradish peroxidase with an immunocytochemical technique, substance P-like immunoreactive neurons in the medial and commissural subnuclei of the nucleus tractus solitarii (NTS) of the rat were found to send axons to the nucleus accumbens.