The resistance rate of H. pylori infection to clarithromycin in Japan has increased gradually to approximately 30% from 1996 through 2004, and remained unchanged since 2004. Elderly and females were at high risk of having resistance to clarithromycin. Our results suggested that the level of clarithromycin resistance in Japan has now risen to the point where it should no longer be used as empiric therapy.

The results show that the decrease in HCV RNA titer by lactoferrin monotherapy contributes to the effectiveness of the combined therapy of interferon and ribavirin in patients with CHC. Lactoferrin is a potential useful adjunct treatment for patients with CHC.

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Enhanced-magnification endoscopy may be useful for identifying gastric tumors and determining the extent of horizontal spread, especially in tumors of the depressed type.

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