Intracerebroventricular administration of octopamine stimulates food intake of chicks through α2-adorenoceptor

Takashi Bungo, Tamae Higaki, Hiroshi Ueda, Mitsuhiro Furuse

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)

抄録

Octopamine, known to be an important neurotransmitter in invertebrates, has been noted to have several similarities to noradrenaline (NA) in mammals. The present study was done to elucidate whether central injection of octopamine enhances the feeding behavior of chicks and to investigate the interaction of octopamine with both α1- and α2-adorenoceptors. We found that the intracerebroventricular injection of octopamine significantly stimulated food intake of neonatal chicks during 30 min postinjection, but not thereafter. Moreover, this octopamine-induced eating response was attenuated by the α2-antagonist yohimbine, but not by the α1-antagonist prazosin. These results suggest that the action of octopamine on the feeding behavior of the neonatal chick is similar to that of NA, since octopamine regulates food intake through the α2-adorenoceptor.

本文言語英語
ページ(範囲)575-578
ページ数4
ジャーナルPhysiology and Behavior
76
4-5
DOI
出版ステータス出版済み - 2002

!!!All Science Journal Classification (ASJC) codes

  • 実験心理学および認知心理学
  • 行動神経科学

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