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  • Title: Helicobacter pylori and chronic active inflammation of the duodenum and stomach in duodenal ulcer patients treated with ranitidine, misoprostol, or an acid-neutralizing agent.
    Author: Madsen JE, Vetvik K, AAse S.
    Journal: Scand J Gastroenterol; 1991 May; 26(5):465-70. PubMed ID: 1908115.
    Abstract:
    Biopsy specimens from the stomach and duodenum of 45 duodenal ulcer patients treated with ranitidine, misoprostol, or an antacid were examined. During 4 weeks of treatment the duodenal ulcer healed in 31 patients. The treatment regimens showed no significant effect on the amount of Helicobacter-like structures (HLS) or the presence of active inflammation, either in the stomach or in the duodenum. All patients had chronic active antral gastritis before and after treatment. HLS were found histologically in 91.7% of all antral specimens, in 94.2% of the gastric corpus specimens, in 15.9% of the duodenal bulb specimens, and in 0.9% from the lower duodenal knee. The frequency of chronic active gastritis was clearly lower in the gastric corpus than in the antrum, whereas the occurrence of HLS was about the same. This may indicate a higher resistance of the gastric corpus mucosa to H. pylori.
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