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  • Title: Effects of the new histamine H2-receptor antagonist N-ethyl-N'-[3-[3-(piperidinomethyl)phenoxy]propyl] urea with potent gastric mucosal protective activity on acute gastric lesions and duodenal ulcers in rats.
    Author: Sekiguchi H, Hamada K, Taga F, Nishino K.
    Journal: Arzneimittelforschung; 1993 Feb; 43(2):134-8. PubMed ID: 8096133.
    Abstract:
    The effects of KU-1257 (N-ethyl-N'-[3-[3-(piperidinomethyl)phenoxy]propyl]urea, CAS 120958-90-9) on gastric lesions and duodenal ulcers in rats were compared with those of various antiulcer drugs. KU-1257 prevented the formation of gastric lesions induced by necrotizing agents. The ID50 values against 0.6 N HCl-induced gastric lesions were 18.6 mg/kg, p.o. and 6.0 mg/kg, i.p. The ID50 values against absolute ethanol- and 1% NH3-induced gastric lesions were 12.4 and 9.2 mg/kg, p.o., respectively. Roxatidine acetate, troxipide and teprenone at doses of 100-200 mg/kg p.o. also significantly prevented the formation of gastric lesions by these necrotizing agents. Cimetidine, ranitidine and famotidine had no protective effect against these gastric lesions even at a dose of 200 mg/kg p.o. KU-1257, roxatidine acetate and famotidine inhibited acetylsalicylic acid- and water-immersion stress-induced gastric lesions. KU-1257, roxatidine acetate and famotidine inhibited mepirizole-induced duodenal ulcers, but not troxipide and teprenone. These results suggest that KU-1257 is more potent in the mucosal protective action than troxipide, teprenone, roxatidine acetate and other histamine H2-receptor antagonists.
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