Mu-Opioid Receptor is Involved in β-Endorphin-Induced Feeding in the Meat-type Chick

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β-Endorphin is an endogenous ligand for both mu- and delta-opioid receptors (MOR and DOR), and has an important role in feeding behavior in the central nervous system in mammals. The present study was done to elucidate whether central injection of β-endorphin enhances feeding behavior in neonatal chicks and to investigate the interaction with the MOR and DOR. We found that the intracerebroventricular (ICV) injection of β-endorphin (50pmol) significantly stimulated food intake in neonatal chicks during the 60-min period postinjection. In addition, the orexigenic effect of β-endorphin was significantly attenuated by the MOR, but not by the DOR antagonist. These results indicate that the administration of β-endorphin into the chick brain produces the orexigenic effect through the MOR.

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  • The journal of poultry science  

    The journal of poultry science 45(2), 139-142, 2008-04-25 

    日本家禽学会

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各種コード

  • NII論文ID(NAID)
    10021220225
  • NII書誌ID(NCID)
    AA11564513
  • 本文言語コード
    ENG
  • 資料種別
    NOT
  • ISSN
    13467395
  • NDL 記事登録ID
    9469260
  • NDL 雑誌分類
    ZR22(科学技術--農林水産--畜産)
  • NDL 請求記号
    Z54-J694
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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