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  • Title: Effect of 2,4-diamino-6-(2,5-dichlorophenyl)-s-triazine maleate (MN-1695) on gastric mucosal damage induced by various necrotizing agents in rats.
    Author: Ueda F, Aratani S, Mimura K, Kimura K, Nomura A, Enomoto H.
    Journal: Arzneimittelforschung; 1984; 34(4):478-84. PubMed ID: 6588974.
    Abstract:
    The effect of 2,4-diamino-6-(2,5-dichlorophenyl)-s-triazine maleate (MN-1695) on the gastric mucosal damage induced in rats by various necrotizing agents was compared with those of cimetidine, cetraxate and prostaglandin (PG) E2. MN-1695 at doses of 0.37 mg (1 mumol) to 3.72 mg (10 mumol)/kg, significantly decreased in a dose-dependent manner the damage indices after the application of ethanol, HCl, NaOH, 25% NaCl or boiling water. Cimetidine in doses of 12.6 mg (50 mumol) to 126 mg (500 mumol)/kg was effective only against HCl-induced damage. Cetraxate in doses of 34.2 mg (100 mumol) to 342 mg (1 mmol)/kg was effective against damage due to ethanol, HCl, 25% NaCl or boiling water. However, cetraxate increased the damage index of NaOH-induced injury. PGE2 in a dose of 25 micrograms (70 nmol)/kg was effective against ethanol and 25% NaCl. The histological changes of gastric mucosal cells produced by ethanol were significantly decreased by MN-1695 and PGE2. These results suggest that MN-1695 has a cytoprotective action like that of PGE2 and that this cytoprotection inhibits the development of various kinds of experimental gastric ulcers.
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