title: Helicobacter pylori eradication improves gastric histology and decreases serum gastrin, pepsinogen I and pepsinogen II levels in patients with duodenal ulcer.
abstract: OBJECTIVE
  The aim of this study was to assess the gastric histopathology and serum gastrin-17 and pepsinogens profiles in patients with duodenal ulcer before and after Helicobacter pylori eradication in a population with a very high prevalence of H. pylori. At the same time we assessed the role of H. pylori density on these variables.
  
  
  METHODS
  Eighty Caucasian patients with H. pylori-associated duodenal ulcer before treatment and 1 year after randomized eradication were studied. Among patients with unsuccessful eradication two groups were distinguished according to the data obtained after treatment: the group with negative rapid urease test and decreased bacterial density according to morphological score (partial elimination group); the group with positive rapid urease test and high bacterial density (failed eradication group).
  
  
  RESULTS
  One year after successful eradication, serum levels of gastrin-17, pepsinogen I and pepsinogen II decreased. Similar changes of serum pepsinogen I and pepsinogen II levels were observed in patients with partial elimination of H. pylori infection. In the group with successful eradication, inflammation, activity, atrophy and number of lymphoid follicles in the antral mucosa fell. In the group with partial elimination, antral mucosa activity and H. pylori score reduced. Other morphological changes were statistically non-significant.
  
  
  CONCLUSIONS
  Patients with duodenal ulcer after successful eradication have improvement of morphological and functional characteristics of gastric mucosa.
authors.affiliation: Therapy Department No. 2, Vitebsk State Medical University, Vitebsk, Republic Belarus. pimanovs@tut.by
authors.forename: Sergey I
authors.initials: SI
authors.lastname: Pimanov
authors.forename: Elena V
authors.initials: EV
authors.lastname: Makarenko
authors.forename: Alla V
authors.initials: AV
authors.lastname: Voropaeva
authors.forename: Maya E
authors.initials: ME
authors.lastname: Matveenko
authors.forename: Eugen V
authors.initials: EV
authors.lastname: Voropaev
mesh_terms: D000293:Adolescent; D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D000907:Antibodies, Bacterial / Q000097:blood; D015415:Biomarkers / Q000097:blood; D015536:Down-Regulation; D004359:Drug Therapy, Combination; D004381:Duodenal Ulcer / Q000097:blood / Q000188:drug therapy* / Q000382:microbiology / Q000473:pathology; D005260:Female; D005753:Gastric Mucosa / Q000187:drug effects / Q000382:microbiology / Q000473:pathology; D005755:Gastrins / Q000097:blood*; D005757:Gastritis, Atrophic / Q000097:blood / Q000188:drug therapy* / Q000382:microbiology / Q000473:pathology; D005773:Gastroscopy; D016481:Helicobacter Infections / Q000097:blood / Q000188:drug therapy* / Q000382:microbiology / Q000473:pathology; D016480:Helicobacter pylori / Q000201:enzymology / Q000276:immunology / Q000302:isolation & purification*; D006801:Humans; D008297:Male; D008875:Middle Aged; D020116:Pepsinogen A / Q000097:blood*; D020115:Pepsinogen C / Q000097:blood*; D054328:Proton Pump Inhibitors / Q000627:therapeutic use*; D013997:Time Factors; D017211:Treatment Failure; D016896:Treatment Outcome; D014510:Urease / Q000032:analysis; D055815:Young Adult
chemical_list: D000900:Anti-Bacterial Agents; D000907:Antibodies, Bacterial; D015415:Biomarkers; D005755:Gastrins; D054328:Proton Pump Inhibitors; C013550:gastrin 17; D020115:Pepsinogen C; D020116:Pepsinogen A; D014510:Urease