<P> Some skepticism was expressed initially , but within a few years multiple research groups had verified the association of H. pylori with gastritis and , to a lesser extent , ulcers . To demonstrate H. pylori caused gastritis and was not merely a bystander , Marshall drank a beaker of H. pylori culture . He became ill with nausea and vomiting several days later . An endoscopy 10 days after inoculation revealed signs of gastritis and the presence of H. pylori . These results suggested H. pylori was the causative agent . Marshall and Warren went on to demonstrate antibiotics are effective in the treatment of many cases of gastritis . In 1987 , the Sydney gastroenterologist Thomas Borody invented the first triple therapy for the treatment of duodenal ulcers . In 1994 , the National Institutes of Health stated most recurrent duodenal and gastric ulcers were caused by H. pylori , and recommended antibiotics be included in the treatment regimen . </P>
<P> Some skepticism was expressed initially , but within a few years multiple research groups had verified the association of H. pylori with gastritis and , to a lesser extent , ulcers . To demonstrate H. pylori caused gastritis and was not merely a bystander , Marshall drank a beaker of H. pylori culture . He became ill with nausea and vomiting several days later . An endoscopy 10 days after inoculation revealed signs of gastritis and the presence of H. pylori . These results suggested H. pylori was the causative agent . Marshall and Warren went on to demonstrate antibiotics are effective in the treatment of many cases of gastritis . In 1987 , the Sydney gastroenterologist Thomas Borody invented the first triple therapy for the treatment of duodenal ulcers . In 1994 , the National Institutes of Health stated most recurrent duodenal and gastric ulcers were caused by H. pylori , and recommended antibiotics be included in the treatment regimen . </P>
helicobacter pylori is implicated as a causative agent in the development
helicobacter pylori is implicated as a causative agent in the development
duodenal and gastric ulcers
duodenal and gastric ulcers