Warren, J. Robin

Warren, J. Robin

(John Robin Warren), 1937–, Australian pathologist, grad. Univ. of Adelaide (M.B., B.S., 1961). He spent most of his career (1968–99) as a pathologist at the Royal Perth Hospital. Warren was a co-recipient, with Barry J. MarshallMarshall, Barry James,
1951–, Australian physician, grad. Univ. of Western Australia (M.B., B.S., 1974). Marshall he was on the staff at the Royal Perth Hospital from 1977 to 1986 and on the faculty at the Univ. of Virginia from 1986 to 1996.
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, of the 2005 Nobel Prize in physiology or medicine for their discovery of the bacterium Helicobacter pylori as the cause of gastric ulcersulcer,
open sore or circumscribed erosion, usually slow to heal, on the skin or mucous membranes. It may develop as a result of injury; because of a circulatory disturbance, e.g.
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. Working as a pathologist, Warren had observed that these small, curved bacteria were always associated with an inflammation of the lining in the lower part of the stomach. By conducting a study of biopsied tissue, the pair determined that peptic ulcer disease is infectious and not induced by stress and lifestyle as previously was believed. Their discovery led to the treatment of peptic ulcers with antibiotics.