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[Effects of Helicobacter pylori(Hp) eradication on gastric mucosal pathophysiology in Hp-positive, NSAIDs-induced gastric ulcer].

It has been suggested that the mechanisms of NSAIDs-induced peptic ulcer disease are totally different from those induced by Hp. Although a number of studies have examined the effects of Hp eradication on pathophysiology of NSAIDs-induced ulcer diseases, the results have been controversial. At present, therefore, we do not know whether Hp should be eradicated in Hp-positive NSAIDs-induced ulcer patients. Recent studies have shown that both Hp eradication and NSAIDs treatment increases gastric acid secretion, and often causes mucosal lesions in upper GI tract. Based on this back ground, we have decided to review pathophysiology of the Hp-dependent ulcer, and the NSAIDs-induced ulcer. We also discussed the merit and demerit of Hp eradication on gastric mucosal pathophysiology in Hp-positive, NSAIDs-induced ulcer.