title: Co-localization of neuronal nitric oxide synthase with arginine-vasotocin in the preoptic-hypothalamo-hypophyseal system of the teleost Oreochromis niloticus.
abstract: This study provides evidence that, in the preoptic-hypothalamo-hypophysial system of the teleost Oreochromis niloticus, several sub-populations of arginine-vasotocin (AVT)-producing neurons and neurosecretory fibers terminals express neuronal nitric oxide synthase (nNOS)-like molecules. The co-localization between nNOS and AVT was demonstrated by means of double immunofluorescence staining with the confocal microscope. This study is the first to provide evidence that nNOS may be co-localized with AVT in neurons of a non-mammalian vertebrate.
authors.affiliation: Department of Animal and Human Biology, La Sapienza University, via A. Borelli, 50 00161 Rome, Italy.
authors.forename: Loredana
authors.initials: L
authors.lastname: Bordieri
authors.forename: Carla
authors.initials: C
authors.lastname: Cioni
mesh_terms: D000818:Animals; D023681:Cichlids / Q000033:anatomy & histology / Q000378:metabolism*; D005260:Female; D005455:Fluorescent Antibody Technique; D007030:Hypothalamo-Hypophyseal System / Q000166:cytology / Q000378:metabolism*; D007150:Immunohistochemistry; D008297:Male; D009474:Neurons / Q000166:cytology / Q000201:enzymology / Q000378:metabolism*; D019001:Nitric Oxide Synthase / Q000378:metabolism*; D052248:Nitric Oxide Synthase Type I; D011301:Preoptic Area / Q000166:cytology / Q000378:metabolism*; D013347:Subcellular Fractions / Q000378:metabolism; D014018:Tissue Distribution; D014668:Vasotocin / Q000378:metabolism*
chemical_list: D019001:Nitric Oxide Synthase; D052248:Nitric Oxide Synthase Type I; D014668:Vasotocin