in order to elucidate the possible involvement of the central neuropeptide-y ( npy ) - and adrenocorticotroph hormone ( acth ) -immunoreactive ( ir ) systems in the innervation of hypophysiotrophic crf-synthesizing neurons , immunocytochemical double labelling studies were conducted in the hypothalamus of the rat to localize crf-synthesizing neurons , as well as neuronal fibers exhibiting npy and acth-immunoreactivity , respectively .
C0020663
hypothalamus
C0010132
crf