選択的セロトニン３受容体きっ抗薬Ｙ‐２５１３０のラット腸液分泌に及ぼす影響

DOI Web Site PubMed

書誌事項

タイトル別名
  • Effect of Y-25130, a selective 5-HT3 receptor antagonist, on the intestinal fluid secretion in rats.
  • センタクテキ セロトニン 3 ジュヨウタイ キッコウヤク Y-25130 ノ

この論文をさがす

抄録

We studied the effect of Y-25130 on the intestinal fluid secretion induced by 5-HT and cholera toxin in rats. 1) Net fluid secretion was increased dose-dependently by intramesenteric artery infusion of 5-HT (1 ?? 10 μg/ min). 2) Y-25130 (0.01 ?? 1 mg/kg, i.v.) inhibited the net fluid secretion induced by 5-HT (3 μg/min). Granisetron and ondansetron also inhibited the net fluid secretion induced by 5-HT. 3) Methysergide did not inhibit the fluid secretion, and neither atropine nor tetrodotoxin inhibited it. 4) Cholera toxin (1 ?? 10 μg/2 ml into jejunal loops) caused profuse net fluid secretion. 5) Y-25130 (1 mg/kg, i.v.) inhibited the net fluid secretion induced by cholera toxin (3 μg/2 ml). Granisetron was inhibitory and ondansetron tended to inhibit the cholera toxin-induced secretion. These results suggest that 5-HT may increase the net fluid secretion through 5-HT3 receptors, and cholera toxin-induced fluid secretion may be at least partially mediated by 5-HT3 receptors. It is expected that Y-25130 may be useful for treating secretory diarrhea in humans.

収録刊行物

  • 日本薬理学雑誌

    日本薬理学雑誌 101 (5), 299-307, 1993

    公益社団法人 日本薬理学会

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