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  • Title: Peripheral or central administration of nitric oxide synthase inhibitor affects feeding behavior in chicks.
    Author: Khan MS, Tachibana T, Hasebe Y, Masuda N, Ueda H.
    Journal: Comp Biochem Physiol A Mol Integr Physiol; 2007 Oct; 148(2):458-62. PubMed ID: 17618151.
    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.
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