title: Association between Helicobacter pylori infection and serum pepsinogen concentrations in gastroduodenal disease.
abstract: OBJECTIVE
  To investigate the association between Helicobacter pylori infection and serum pepsinogen (PG) 1 and 2 concentrations in various gastroduodenal diseases.
  
  
  METHODS
  Serum PG1 and 2 concentrations and antibodies to H pylori were measured by enzyme linked immunosorbent assay (ELISA); gastric mucosal pH was assessed and urease activity in biopsy tissue was determined. A comparison of the ELISA and urease test results permitted division of the cases into positive, false positive, false negative and negative categories for control, gastritis, and ulcer groups.
  
  
  RESULTS
  The gastric mucosal pH and serum PG2 in cases positive for H pylori were significantly increased in ulcer and gastritis cases compared with H pylori negative cases. Similar tendencies were observed for the false positive and false negative categories.
  
  
  CONCLUSIONS
  A positive ELISA reaction for antibodies and an increased serum PG2 concentration are reliable indicators of H pylori infection.
authors.affiliation: Development Section, Japan Clinical Laboratories, Inc., Osaka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Matsumoto
authors.forename: N
authors.initials: N
authors.lastname: Konishi
authors.forename: M
authors.initials: M
authors.lastname: Ohshima
authors.forename: Y
authors.initials: Y
authors.lastname: Hiasa
authors.forename: E
authors.initials: E
authors.lastname: Kimura
authors.forename: T
authors.initials: T
authors.lastname: Samori
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000907:Antibodies, Bacterial / Q000097:blood; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D005756:Gastritis / Q000150:complications / Q000378:metabolism* / Q000503:physiopathology; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori / Q000201:enzymology / Q000302:isolation & purification; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D008875:Middle Aged; D010435:Pepsinogens / Q000097:blood*; D010437:Peptic Ulcer / Q000150:complications / Q000378:metabolism* / Q000503:physiopathology; D014510:Urease / Q000502:physiology
chemical_list: D000907:Antibodies, Bacterial; D010435:Pepsinogens; D014510:Urease