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Orexins (hypocretins) are neuropeptides synthesized in the central nervous system exclusively by neurons of the lateral… Expand Ghrelin, a novel GH-releasing acylated peptide, was recently isolated from rat stomach. It stimulated the release of GH from the… Expand Estrogen plays a profound role in regulating the structure and function of many neuronal systems in the adult rat brain. The… Expand Nitric oxide (NO) was first recognized as a messenger molecule in the central nervous system (eNS) in 1988 (52), when it was… Expand NADPH diaphorase histochemistry selectively labels a number of discrete populations of neurons throughout the nervous system… Expand The organization of projections from the cholinergic neurons of the basal forebrain to neocortex and associated structures was… Expand Endogenous cytochrome oxidase activity within the mitochondria of neurons and neuropil was demonstrated histochemically under… Expand The aldehydes introduced in this paper and the more appropriate concentrations for their general use as fixatives are: 4 to 6.5… Expand A. G. E. Pearse is a relative newcomer to the field of histochemistry. He holds an M.D. degree from the University of Cambridge… Expand