Daily Archives: December 9, 2015

Helicobacter pylori and peptic ulcers

Contributed by Roberto Torres Helicobacter pylori is a gram negative bacterium which colonizes the human gastric mucosa. In the 1980’s, through biopsies and histological observations, Doctors Robin Warren and Barry Marshall proposed that peptic ulcers were caused by a gastric epithelial infection by a similar Campylobacter bacterium, and now we classify it as Helicobacter. This proposal […]

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