title: Peripheral or central administration of nitric oxide synthase inhibitor affects feeding behavior in chicks.
abstract: We investigated the effect of peripheral or central administration of N(G)-nitro-L-arginine methyl ester (L-NAME), a nitric oxide (NO) synthase inhibitor, on food intake in layer and broiler chicks (Gallus gallus). The intraperitoneal administration of L-NAME significantly decreased food intake in both broiler and layer chicks while the administration of D-NAME, an inactive form of L-NAME, had no effect. The intracerebroventricular (ICV) injection of L-NAME did not affect food intake in broiler chicks. However, ICV injection of L-NAME increased food intake in layer chicks while the injection of D-NAME had no effect. In addition to this, L-NAME-induced feeding was negated with the co-injection of L-arginine, suggesting that NO acts as a feeding-inhibitor signal in the brain of layer chicks. The present study revealed that administration of NO synthase inhibitor affected food intake in chicks, but the effect might be changed by chick strain and position of the injection.
authors.affiliation: Department of Agrobiological Science, Faculty of Agriculture, Ehime University, Matsuyama 790-8566, Japan.
authors.forename: Md Sakirul Islam
authors.initials: MS
authors.lastname: Khan
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Tachibana
authors.forename: Yuko
authors.initials: Y
authors.lastname: Hasebe
authors.forename: Naoto
authors.initials: N
authors.lastname: Masuda
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ueda
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D001120:Arginine / Q000008:administration & dosage; D002645:Chickens / Q000378:metabolism / Q000502:physiology*; D004791:Enzyme Inhibitors / Q000008:administration & dosage*; D005247:Feeding Behavior / Q000187:drug effects*; D007274:Injections, Intraperitoneal; D007276:Injections, Intraventricular; D008297:Male; D019331:NG-Nitroarginine Methyl Ester / Q000008:administration & dosage*; D009569:Nitric Oxide / Q000378:metabolism; D019001:Nitric Oxide Synthase / Q000037:antagonists & inhibitors* / Q000378:metabolism; D013045:Species Specificity
chemical_list: D004791:Enzyme Inhibitors; D009569:Nitric Oxide; D001120:Arginine; D019001:Nitric Oxide Synthase; D019331:NG-Nitroarginine Methyl Ester