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  • Title: The effect of Nesfatin-1 on food intake in neonatal chicks: role of CRF1 /CRF2 and H1/ H3 receptors.
    Author: Heidarzadeh H, Zendehdel M, Babapour V, Gilanpour H.
    Journal: Vet Res Commun; 2018 Mar; 42(1):39-47. PubMed ID: 29280084.
    Abstract:
    The present study was designed to determine the effect of central injection of Nesfatin-1 and corticotropin and histaminergic systems on food intake in neonatal meat-type chicks. In this study, 7 experiments were designed, each with 4 treatment groups. In experiment 1, four groups of chicks received the ICV injection of (A) phosphate-buffered saline (PBS), (B) Nesfatin-1 (10 ng), (C) Nesfatin-1 (20 ng) and (D) Nesfatin-1 (40 ng). In experiment 2, (A) PBS, (B) Astressin-B (CRF1/CRF2 receptors antagonist; 30 µg), (C) Nesfatin-1 (40 ng) and (D) Nesfatin-1 + Astressin-B were injected. In experiments 3-6, chicken received ICV injection of the Astressin2-B (CRF2 receptor antagonist; 30 µg), α-FMH (alpha fluoromethyl histidine; as inhibitor of histidine decarboxylase, 250 nmol), Chlorpheniramine (histamine H1 receptors antagonist, 300 nmol), Famotidine (histamine H2 receptors antagonist, 82 nmol) and Thioperamide (histamine H3 receptors antagonist, 300 nmol) instead of the Astressin-B. Then the cumulative food intake measured until 120 min post-injection. According to the results, ICV injection of Nesfatin-1 dose dependently decreased food intake in neonatal chicks (P < 0.05). Co-injection of the Nesfatin-1 and Astressin-B (CRF1/CRF2) inhibited Nesfatin-1 induced hypophagia (P < 0.05). ICV inejction of the Nesfatin-1 + Astressin-B significantly inhibited the effect of Nesfatin-1 on food intake (P < 0.05). In addition, α-FMH and chlorpheniramine attenuated Nesfatin-1-induced hypophagia in chicks (P < 0.05); while thioperamide significantly amplified the effect of Nesfatin-1 on food intake in chicks (P < 0.05). These results suggested Nesfatin-1 has an anorectic effect in 3-hour food deprived neonatal meat-type chicks and this effect was mediated by corticotropin CRF1/CRF2 as well as histamine H1 and H3 receptors.
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