Feeding responses to several neuropeptide Y receptor agonists in the neonatal chick

Ando, Ryuichi; Kawakami, S.; Bungo, Takashi; Ohgushi, Atsushi; Takagi, Tohru; Denbow, D. Michael; Furuse, Mitsuhiro

doi:10.1016/s0014-2999(01)01201-8

Cited by 56 publications

(21 citation statements)

References 34 publications

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“…A similar effect was also reported in neonatal chicks: ICV injection of human or rat PP increases food intake (Ando et al, 2001). Because centrally-injected PP also stimulates feeding behavior in mice (Asakawa et al, 1999), it is likely that the role of PP in the brain is conserved between chicks and rodents.…”

Section: Orexigenic Neuropeptidessupporting

confidence: 76%

“…Orexigenic peptides are roughly categorized as the families of pancreatic peptide, opioid and its related peptides, Arg-Phe-NH 2 peptide (RFamide peptide), and others. In the pancreatic peptide family, NPY, pancreatic polypeptide (PP), and peptide YY (PYY) are thought to be orexigenic peptides in birds (Kuenzel et al, 1987; Ando et al, 2001). Opioid and its related peptides that stimulate feeding behavior in birds are β-endorphin, endomorphin-2, and nociception (Deviche and Schepers, 1984; Abbasnejad et al, 2005; Bungo et al, 2007).…”

Section: Orexigenic Neuropeptidesmentioning

confidence: 99%

“…Intra-ARC injection of PYY(3–36) suppresses feeding behavior (Batterham et al, 2002), demonstrating that PYY(3–36) is an anorexigenic neuropeptide as a peripheral factor in mammals. In neonatal chicks, ICV injection of mammalian PYY(1–36) increases food intake as it does in rats (Ando et al, 2001). Recently, Aoki et al (2016) identified cDNA of chicken PYY precursor and found that intravenous injection of PYY(3–36) decreases food intake in neonatal chicks.…”

Section: Orexigenic Neuropeptidesmentioning

confidence: 99%

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Neuropeptide Control of Feeding Behavior in Birds and Its Difference with Mammals

Tachibana

Tsutsui

2016

Front. Neurosci.

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Feeding is an essential behavior for animals to sustain their lives. Over the past several decades, many neuropeptides that regulate feeding behavior have been identified in vertebrates. These neuropeptides are called “feeding regulatory neuropeptides.” There have been numerous studies on the role of feeding regulatory neuropeptides in vertebrates including birds. Some feeding regulatory neuropeptides show different effects on feeding behavior between birds and other vertebrates, particularly mammals. The difference is marked with orexigenic neuropeptides. For example, melanin-concentrating hormone, orexin, and motilin, which are regarded as orexigenic neuropeptides in mammals, have no effect on feeding behavior in birds. Furthermore, ghrelin and growth hormone-releasing hormone, which are also known as orexigenic neuropeptides in mammals, suppress feeding behavior in birds. Thus, it is likely that the feeding regulatory mechanism has changed during the evolution of vertebrates. This review summarizes the recent knowledge of peptidergic feeding regulatory factors in birds and discusses the difference in their action between birds and other vertebrates.

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Section: Orexigenic Neuropeptidessupporting

confidence: 76%

Section: Orexigenic Neuropeptidesmentioning

confidence: 99%

Section: Orexigenic Neuropeptidesmentioning

confidence: 99%

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Neuropeptide Control of Feeding Behavior in Birds and Its Difference with Mammals

Tachibana

Tsutsui

2016

Front. Neurosci.

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“…Many studies showed associations of the GHRL gene with adiposity [10–12, 38] and Type 2 diabetes [39] in humans. Additionally, some polymorphisms in the GHSR gene were found to be associated with obesity, bulimia nervosa, and pharmacological abnormalities in humans [40–43].…”

Section: Discussionmentioning

confidence: 99%

“…In addition to these two nonsynonymous SNPs, two other variations of Gln90Leu and a frameshift mutation (2 bp deletion at codon 34) were also reported in the human GHRL gene, and the 90Leu allele frequency was significantly higher in extremely obese children and adolescents (0.063) than in normal-weight students [11]. A novel SNP, T3056C in intron 2 of the GHRL gene, was significantly associated with the acylation of GHRL and some fatness traits, including high body mass index, body weight, fat mass, and skinfold thickness [12]. Among 11 SNPs identified in the 5′ flanking region of the GHRL gene, SNP-501A > C was significantly associated with body mass index in human [13].…”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization of the Ghrelin and Ghrelin Receptor Genes and Effects on Fat Deposition in Chicken and Duck

Nie

Fang

Xie

et al. 2009

BioMed Research International

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Ghrelin (GHRL) and its receptor (GHSR) are involved in various bioactivities. In this study, the complete cDNA and 5′ flanking region of the duck GHRL (dGHRL) gene and a 3717 bp fragment of the duck GHSR (dGHSR) gene were obtained. A total of 19, 8, 43, and 48 SNPs identified in 2751, 1358, 3671, and 3567 bp of the chicken GHRL (cGHRL), chicken GHSR (cGHSR), dGHRL, and dGHSR genes, respectively. Both cGHRL and dGHRL were expressed predominantly in the proventriculus, whereas the highest mRNA levels of cGHSR and dGHSR were detected in the breast muscle and pituitary. Association analysis showed that C-2047G, A-2355C, and A-2220C of the cGHRL gene were significantly associated with abdominal fat weight (AFW; P = .01), crude protein content of leg muscle (CPCLM; P = .02), and CPCLM (P = .0009), respectively. C-1459T of the cGHSR gene was also significantly associated with CPCLM (P = .0004). C-729T of dGHRL and A3427T of dGHSR were both significantly associated with subcutaneous fat thickness (SFT; P = .04). It was indicated by this study that the GHRL and GHSR genes were related to fat deposition in both chicken and duck.

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Neuropeptide Y and orexin immunoreactivity in the sparrow brain coincide with seasonal changes in energy balance and steroids

Fokidis

Radin

et al. 2018

J of Comparative Neurology

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The transition between the breeding and nonbreeding states is often marked by a shift in energy balance. Despite this well-known shift in energy balance, little work has explored seasonal differences in the orexigenic neuropeptides that regulate food intake in wild animals. Here we tested the hypothesis that free-living male song sparrows (Melospiza melodia) show seasonal changes in energetic state, circulating steroids, and both neuropeptide Y (NPY) and orexin (OX) immunoreactivity. Nonbreeding song sparrows had more fat and muscle, as well as a ketone and triglyceride profile suggesting a greater reliance on lipid reserves. Breeding birds had higher plasma androgens; however, nonbreeding birds did maintain androgen precursors in circulation. Nonbreeding birds had more NPY immunoreactivity, specifically in three brain regions: lateral septum, bed nucleus of the stria terminalis, and ventral tegmental area. Furthermore, nonbreeding birds had more OX immunoreactivity in multiple brain regions. Taken together, the data indicate that a natural shift in energy balance is associated with changes in NPY and OX in a region-specific manner.

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Feeding responses to several neuropeptide Y receptor agonists in the neonatal chick

Cited by 56 publications

References 34 publications

Neuropeptide Control of Feeding Behavior in Birds and Its Difference with Mammals

Neuropeptide Control of Feeding Behavior in Birds and Its Difference with Mammals

Molecular Characterization of the Ghrelin and Ghrelin Receptor Genes and Effects on Fat Deposition in Chicken and Duck

Neuropeptide Y and orexin immunoreactivity in the sparrow brain coincide with seasonal changes in energy balance and steroids

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