Effect of N-acetyl-L-glutamine aluminum complex (KW-110), an antiulcer agent, on the non-steroidal anti-inflammatory drug-induced exacerbation of gastric ulcer in rats.
Gastric ulcer induced by the injection of acetic acid (0.025 ml of 20%) into the gastric wall of rats was healed considerably 5 days after the injection of acetic acid. Non-steroidal anti-inflammatory drugs (NSAID) such as aspirin, indomethacin, and phenylbutazone were given consecutively for 5 days, and they exacerbated the ulcer and enlarged the ulcer area. Aspirin caused exacerbation when it was given for the initial 5 days of the ulcer healing process. Phenylbutazone caused exacerbation by the administration for 5 days at the middle stage of the ulcer healing process. In contrast, indomethacin caused exacerbation not only when it was given for the initial 5 days but also when it was given for the middle 5 days. The effect of the antiulcer agent N-acetyl-L-glutamine aluminum complex (KW-110) on the exacerbation was studied. KW-110 at an oral dose of 500 mg/kg inhibited remarkably the exacerbation induced by all of the NSAID used. The development of gastric lesions induced by these NSAID was also prevented by KW-110. Further study was carried out with regard to the influences of KW-110 on the pharmacological properties of NSAID. The results showed no influences of KW-110 on the antiedematous and antipyretic actions of the NSAID.
D000535:Aluminum / Q000627:therapeutic use*; D000818:Animals; D000893:Anti-Inflammatory Agents / Q000009:adverse effects*; D000897:Anti-Ulcer Agents / Q000627:therapeutic use*; D004347:Drug Interactions; D004487:Edema / Q000188:drug therapy; D005334:Fever / Q000188:drug therapy; D005753:Gastric Mucosa / Q000098:blood supply; D005973:Glutamine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008297:Male; D009942:Organometallic Compounds; D051381:Rats; D011919:Rats, Inbred Strains; D013276:Stomach Ulcer / Q000139:chemically induced / Q000188:drug therapy*
D000893:Anti-Inflammatory Agents; D000897:Anti-Ulcer Agents; D009942:Organometallic Compounds; D005973:Glutamine; D000535:Aluminum; C002403:aceglutamide aluminum