PMID- 31067538 OWN - NLM STAT- MEDLINE DCOM- 20210301 LR - 20210301 IS - 1421-9867 (Electronic) IS - 0012-2823 (Linking) VI - 101 IP - 3 DP - 2020 TI - Effects of Proton Pump Inhibitor on the Distribution of Helicobacter pylori and Associated Gastritis in Patients with Gastric Atrophy. PG - 279-286 LID - 10.1159/000499424 [doi] AB - BACKGROUND/AIMS: Acid suppression therapy is thought to be associated with the topography of Helicobacter pylori and associated gastritis, leading to corpus-predominant gastritis. This study was aimed to investigate the influence of proton pump inhibitor (PPI) treatment on the distribution of H. pylori and associated gastritis in patients with atrophic change. METHODS: Patients who underwent endoscopic resection for gastric neoplasms and received PPI for 2 months were prospectively analyzed. Biopsy specimens were obtained from 5 areas in the stomach before, during, and after the treatment with PPI. Histological examination was -performed using the updated Sydney system, and -bacterial density of H. pylori was further graded by immunohistochemistry (ClinicalTrials.gov registration number NCT02449941). RESULTS: A total of 15 patients were analyzed, of whom 7 had H. pylori infection. The degree of activity and inflammation were greater in patients with H. pylori infection than in those without H. pylori infection. During the PPI treatment, the density of H. pylori decreased not only in the antrum but also in the corpus. The degree of activity and inflammation improved significantly in the antrum, particularly in the presence of H. pylori infection, while the corpus gastritis was not affected by PPI use. Atrophy and intestinal metaplasia remained unchanged in both regions of the stomach. The observed changes reverted following the discontinuation of PPI treatment. CONCLUSION: PPI treatment decreased H. pylori both in the antrum and the corpus in patients with atrophic gastritis. Antral gastritis improved during PPI treatment, whereas no changes were found in the corpus. CI - (c) 2019 S. Karger AG, Basel. FAU - Gong, Eun Jeong AU - Gong EJ AD - Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, Republic of Korea. FAU - Kim, Do Hoon AU - Kim DH AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Ahn, Ji Yong AU - Ahn JY AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea, ji110@hanmail.net. FAU - Na, Hee Kyong AU - Na HK AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Jung, Kee Wook AU - Jung KW AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Lee, Jeong Hoon AU - Lee JH AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Choi, Kee Don AU - Choi KD AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Song, Ho June AU - Song HJ AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Lee, Gin Hyug AU - Lee GH AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Jung, Hwoon-Yong AU - Jung HY AD - Department of Gastroenterology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Park, Yangsoon AU - Park Y AD - Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. FAU - Kim, Min-Ju AU - Kim MJ AD - Department of Clinical Epidemiology and Biostatistics, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea. LA - eng SI - ClinicalTrials.gov/NCT02449941 PT - Journal Article PT - Observational Study DEP - 20190508 PL - Switzerland TA - Digestion JT - Digestion JID - 0150472 RN - 0 (Proton Pump Inhibitors) SB - IM MH - Aged MH - Biopsy MH - Endoscopic Mucosal Resection MH - Female MH - Gastric Mucosa/drug effects/microbiology/pathology/surgery MH - Gastritis, Atrophic/*drug therapy/microbiology/pathology MH - Helicobacter Infections/*drug therapy/microbiology/pathology MH - Helicobacter pylori/*isolation & purification MH - Humans MH - Male MH - Middle Aged MH - Prospective Studies MH - Proton Pump Inhibitors/*administration & dosage MH - Pyloric Antrum/drug effects/microbiology/pathology/surgery MH - Stomach Neoplasms/microbiology/pathology/*surgery MH - Treatment Outcome OTO - NOTNLM OT - Gastritis OT - Helicobacter pylori OT - Proton pump inhibitors EDAT- 2019/05/09 06:00 MHDA- 2021/03/02 06:00 CRDT- 2019/05/09 06:00 PHST- 2018/12/27 00:00 [received] PHST- 2019/03/05 00:00 [accepted] PHST- 2019/05/09 06:00 [pubmed] PHST- 2021/03/02 06:00 [medline] PHST- 2019/05/09 06:00 [entrez] AID - 000499424 [pii] AID - 10.1159/000499424 [doi] PST - ppublish SO - Digestion. 2020;101(3):279-286. doi: 10.1159/000499424. Epub 2019 May 8.