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We offered hepatitis B vaccine (Heptavax B) to 809 of the health care personnel of a 650-bed regional hospital; 290 accepted the offer. Anti-HBs measurement was done by enzyme immunoassay (AUSAB EIA, Abbott, UK) and expressed in mIU/ml. Seroconversion was determined at a level of 2.1 mIU/ml. Of 290 employees 58 (20%) were found positive for hepatitis B(More)
Reactive oxygen metabolites have been implicated in gastric mucosal injuries. Superoxide dismutase, a scavenger of superoxide radical, is a key enzyme in gastric mucosal protection against several damaging factors. This study was aimed at investigating the relationship of superoxide dismutase activity to Helicobacter pylori-induced antral gastritis in(More)
A mass within the head of the pancreas causing obstructive jaundice is frequently adenocarcinoma, or infrequently focal pancreatitis. Groove pancreatitis is an inflammation of the head of the pancreas which fills the anatomic space between the head of the pancreas on 1 side and the second part of the duodenum on the other. Obstruction from either cause may(More)
OBJECTIVE To investigate whether duodenal ulcer (DU) is associated with increased free radical generation at the site of ulceration and to attempt, indirectly, to confirm the hypothesis by determining activity of free radical scavengers such as superoxide dismutase (SOD). STUDY DESIGN Prospective study comparing SOD activity in biopsies taken from the(More)