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Intracerebroventricular Injection of Ghrelin Induces Sleep-Like Behavior in Neonatal Chicks

  Ghrelin, a novel growth hormone (GH)-releasing acylated peptide, is recently isolated from rat stomach. This peptide stimulates the release of GH from the anterior pituitary through the GH secretagogue receptor and feeding in the rat. However, intracerebroventricular (ICV) injection of rat ghrelin... Full description

Journal Title: The Journal of Poultry Science 2001, Vol.38(4), p.358
Main Author: Tachibana, Tetsuya
Other Authors: Ohgushi, Atsushi , Furuse, Mitsuhiro
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 13467395 ; E-ISSN: 13490486
Link: http://search.proquest.com/docview/1439290029/?pq-origsite=primo
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title: Intracerebroventricular Injection of Ghrelin Induces Sleep-Like Behavior in Neonatal Chicks
format: Article
creator:
  • Tachibana, Tetsuya
  • Ohgushi, Atsushi
  • Furuse, Mitsuhiro
subjects:
  • Ghrelin
  • Intracerebroventricular
  • Sleep-Like Behavior
  • Chick
ispartof: The Journal of Poultry Science, 2001, Vol.38(4), p.358
description:   Ghrelin, a novel growth hormone (GH)-releasing acylated peptide, is recently isolated from rat stomach. This peptide stimulates the release of GH from the anterior pituitary through the GH secretagogue receptor and feeding in the rat. However, intracerebroventricular (ICV) injection of rat ghrelin inhibited feeding of chicks under both ad libitum feeding and fasting conditions (Furuse et al., 2001). Thus, we have investigated the behavioral changes by ghrelin with special reference to sleep-like behavior of the neonatal chick in two experiments. Four behavioral categories were distinguished and scored as follows: 1, standing with eyes open; 2, sitting with eyes open; 3, standing with eyes closed; and 4, sitting motionless with head drooped (sleeping posture). Firstly, ICV injection of 0, 1.25, 2.5 and 5μg of ghrelin was done to ad libitum fed birds. Secondly, several doses (0, 0.5, 1 and 2μg) of ghrelin were injected ICV into chicks previously deprived of food for 3h. In both experiments, scores of ghrelin treated birds were higher than those of control birds. These results suggest that one of the central roles of ghrelin in the neonatal chick is induction of sleep.
language: eng
source:
identifier: ISSN: 13467395 ; E-ISSN: 13490486
fulltext: fulltext
issn:
  • 13467395
  • 1346-7395
  • 13490486
  • 1349-0486
url: Link


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titleIntracerebroventricular Injection of Ghrelin Induces Sleep-Like Behavior in Neonatal Chicks
creatorTachibana, Tetsuya ; Ohgushi, Atsushi ; Furuse, Mitsuhiro
ispartofThe Journal of Poultry Science, 2001, Vol.38(4), p.358
identifierISSN: 13467395 ; E-ISSN: 13490486
description  Ghrelin, a novel growth hormone (GH)-releasing acylated peptide, is recently isolated from rat stomach. This peptide stimulates the release of GH from the anterior pituitary through the GH secretagogue receptor and feeding in the rat. However, intracerebroventricular (ICV) injection of rat ghrelin inhibited feeding of chicks under both ad libitum feeding and fasting conditions (Furuse et al., 2001). Thus, we have investigated the behavioral changes by ghrelin with special reference to sleep-like behavior of the neonatal chick in two experiments. Four behavioral categories were distinguished and scored as follows: 1, standing with eyes open; 2, sitting with eyes open; 3, standing with eyes closed; and 4, sitting motionless with head drooped (sleeping posture). Firstly, ICV injection of 0, 1.25, 2.5 and 5μg of ghrelin was done to ad libitum fed birds. Secondly, several doses (0, 0.5, 1 and 2μg) of ghrelin were injected ICV into chicks previously deprived of food for 3h. In both experiments, scores of ghrelin treated birds were higher than those of control birds. These results suggest that one of the central roles of ghrelin in the neonatal chick is induction of sleep.
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description  Ghrelin, a novel growth hormone (GH)-releasing acylated peptide, is recently isolated from rat stomach. This peptide stimulates the release of GH from the anterior pituitary through the GH secretagogue receptor and feeding in the rat. However, intracerebroventricular (ICV) injection of rat ghrelin inhibited feeding of chicks under both ad libitum feeding and fasting conditions (Furuse et al., 2001). Thus, we have investigated the behavioral changes by ghrelin with special reference to sleep-like behavior of the neonatal chick in two experiments. Four behavioral categories were distinguished and scored as follows: 1, standing with eyes open; 2, sitting with eyes open; 3, standing with eyes closed; and 4, sitting motionless with head drooped (sleeping posture). Firstly, ICV injection of 0, 1.25, 2.5 and 5μg of ghrelin was done to ad libitum fed birds. Secondly, several doses (0, 0.5, 1 and 2μg) of ghrelin were injected ICV into chicks previously deprived of food for 3h. In both experiments, scores of ghrelin treated birds were higher than those of control birds. These results suggest that one of the central roles of ghrelin in the neonatal chick is induction of sleep.
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abstract  Ghrelin, a novel growth hormone (GH)-releasing acylated peptide, is recently isolated from rat stomach. This peptide stimulates the release of GH from the anterior pituitary through the GH secretagogue receptor and feeding in the rat. However, intracerebroventricular (ICV) injection of rat ghrelin inhibited feeding of chicks under both ad libitum feeding and fasting conditions (Furuse et al., 2001). Thus, we have investigated the behavioral changes by ghrelin with special reference to sleep-like behavior of the neonatal chick in two experiments. Four behavioral categories were distinguished and scored as follows: 1, standing with eyes open; 2, sitting with eyes open; 3, standing with eyes closed; and 4, sitting motionless with head drooped (sleeping posture). Firstly, ICV injection of 0, 1.25, 2.5 and 5μg of ghrelin was done to ad libitum fed birds. Secondly, several doses (0, 0.5, 1 and 2μg) of ghrelin were injected ICV into chicks previously deprived of food for 3h. In both experiments, scores of ghrelin treated birds were higher than those of control birds. These results suggest that one of the central roles of ghrelin in the neonatal chick is induction of sleep.
copIbaraki
pubJapan Science and Technology Agency
urlhttp://search.proquest.com/docview/1439290029/
doi10.2141/jpsa.38.358
pages358-363