Effects of NSAIDs on cryoprobe-induced gastric ulcer healing in rats

Autor: Ingvar Bjarnason, G Sigthorsson, R H Palmer, C Caldwell, J A Tibble
Rok vydání: 2001
Předmět:
Zdroj: Alimentary Pharmacology & Therapeutics. 15:2001-2008
ISSN: 0269-2813
DOI: 10.1046/j.1365-2036.2001.01126.x
Popis: Background: Failure of ulcer healing may be critically important to the development of serious gastrointestinal complications in patients on long-term NSAIDs. Aim: To determine the effect of indometacin, celecoxib, a cyclooxygenase-2-specific inhibitor, and nabumetone, a pro-drug, on ulcer healing rates in the rat. Methods: Gastric ulcers were induced using a cryoprobe. An NSAID or a vehicle control was administered to groups of eight rats for 3 or 6 days (2 mg/kg indometacin, 9 mg/kg celecoxib or 40 mg/kg nabumetone). The ulcer area was measured and epithelial proliferation at the ulcer margins was measured histochemically. The effect of the drugs on intestinal prostaglandin levels was also assessed. Results: The mean ulcer sizes in the four groups on day 3 were comparable. On day 6, control animals and those receiving nabumetone showed significant ulcer healing (P
Databáze: OpenAIRE