In Vivo Assessment of Acceleration of Motor Activity Associated With Acetylcholine Release via 5-Hydroxytryptamine4 Receptor in Dog Intestine.

DOI Web Site Web Site Web Site PubMed 被引用文献5件 参考文献66件 オープンアクセス
  • Makimoto Noriaki
    Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences
  • Sakurai-Yamashita Yasuko
    Department of Pharmacology, Nagasaki University Graduate School of Biomedical Sciences
  • Furuichi Akira
    Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences
  • Kawakami Shunsuke
    Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences
  • Enjoji Akihito
    Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences
  • Kanematsu Takashi
    Department of Surgery, Nagasaki University Graduate School of Biomedical Sciences
  • Taniyama Kohtaro
    Department of Pharmacology, Nagasaki University Graduate School of Biomedical Sciences

この論文をさがす

説明

Effect of mosapride, a benzamide, on the motor activity associated with the release of endogenous acetylcholine (ACh) from enteric neurons was examined in the ileum of anesthetized dogs using an in vivo microdialysis method and compared with the effect of 5-hydroxytryptamine (5-HT). Intraarterial administration of 5-HT accelerated intestinal motor activity and increased the concentration of dialysate ACh, and the responses were inhibited by SB204070, a specific 5-HT4-receptor antagonist, but were apparently not affected by methiothepin, ketanserin and granisetron. Intraarterial administration of mosapride, a prokinetic benzamide, accelerated intestinal motor activity and the concentration of dialysate ACh increased. The effects of mosapride were antagonized by SB204070. Specific [125I]SB207710 binding was observed in the myenteric and submucosal plexuses and muscle layers of dog ileum by in vitro receptor autoradiography. High densities of [125I]SB207710 binding sites were detected in the myenteric and submucosal plexuses. Mosapride as well as SB204070 inhibited [125I]SB207710 binding. Thus, in the whole body of dogs, 5-HT and mosapride accelerated the intestinal motor activity due to the increases in ACh release mediated by stimulation of the 5-HT4 receptor.

収録刊行物

  • Jpn.J.Pharmacol.

    Jpn.J.Pharmacol. 90 (1), 28-35, 2002

    公益社団法人 日本薬理学会

被引用文献 (5)*注記

もっと見る

参考文献 (66)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ