PMID- 15086153 OWN - NLM STAT- MEDLINE DCOM- 20040713 LR - 20131121 IS - 0172-6390 (Print) IS - 0172-6390 (Linking) VI - 51 IP - 56 DP - 2004 Mar-Apr TI - Usefulness of proton pump inhibitor (PPI) maintenance therapy for patients with H. pylori-negative recurrent peptic ulcer after eradication therapy for H. pylori: pathophysiological characteristics of H. pylori-negative recurrent ulcer scars and beyond acid suppression by PPI. PG - 338-42 AB - BACKGROUND/AIMS: Problems after Helicobacter pylori (Hp) eradication therapy include recurrence of Hp-negative peptic ulcers. We investigated the pathophysiological characteristics of Hp-negative recurrent ulcer scars, and performed proton pump inhibitor (PPI) maintenance therapy as a new therapy for prevention of recurrence in patients with Hp-negative recurrence after Hp eradication and investigated its usefulness. METHODOLOGY: The subjects were 21 patients with Hp-negative recurrent peptic ulcers after Hp eradication (gastric ulcer: 19, duodenal ulcer: 2) and 25 patients with non-recurrent ulcers (gastric ulcer: 20, duodenal ulcer: 5). The mucosa from the ulcer scar lesion was endoscopically obtained from patients, and HE staining, CD68 immunohistochemical staining, and investigation of the mucosal expression levels of TNF-alpha and IFN-gamma were performed by ELISA. Patients with recurrence after eradication were divided into two groups at the time of ulcer scar after the first treatment, and received maintenance therapy: the intermittent treatment group that received lansoprazole (LPZ), 30 mg/day, on two days on weekends (gastric ulcer: 9, duodenal ulcer: 1) and the ranitidine (RAN) 150 mg/day daily treatment group (gastric ulcer: 8, duodenal ulcer: 1). RESULTS: Infiltration of CD68-positive inflammatory cells was observed in the lamina propria mucosae over the epithelial layer in ulcer scars of the Hp-negative recurrent ulcer group compared with the non-recurrent ulcer group, and TNF-alpha and IFN-gamma significantly increased (27.22+/-6.23 pg/mg, 52.12+/-5.41 pg/mg vs. 4.23+/-2.14 pg/mg, 7.11+/-3.06 pg/mg, P<0.001). In the RAN maintenance therapy group, the ulcer recurred within 10 months in all patients, while the ulcer recurred in only one patient in the intermittent LPZ treatment group. CONCLUSIONS: These results suggested that the pathophysiological characteristic of Hp-negative recurrent ulcer scar lesions after eradication was infiltration of inflammatory cells, mainly monocytes/macrophages, in the lamina propria mucosae over the epithelial layer, and this may be a key factor in ulcer recurrence. Furthermore, intermittent PPI therapy using LPZ may be a useful maintenance therapy for prevention of recurrence in these cases. FAU - Ohara, Tadashi AU - Ohara T AD - Department of Internal Medicine, Tokyo Dental College, Chiba Hospital, Chiba, Japan. tohara@tdc.ac.jp FAU - Morishita, Tetsuo AU - Morishita T FAU - Suzuki, Hidekazu AU - Suzuki H FAU - Masaoka, Tatsuhiro AU - Masaoka T FAU - Ishii, Hiromasa AU - Ishii H LA - eng PT - Comparative Study PT - Journal Article PL - Greece TA - Hepatogastroenterology JT - Hepato-gastroenterology JID - 8007849 RN - 0 (2-Pyridinylmethylsulfinylbenzimidazoles) RN - 0 (Anti-Ulcer Agents) RN - 0 (Proton Pump Inhibitors) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0K5C5T2QPG (Lansoprazole) RN - 82115-62-6 (Interferon-gamma) RN - 884KT10YB7 (Ranitidine) RN - KG60484QX9 (Omeprazole) SB - IM MH - 2-Pyridinylmethylsulfinylbenzimidazoles MH - Anti-Ulcer Agents/therapeutic use MH - Gastric Mucosa/pathology MH - Helicobacter Infections/*drug therapy MH - *Helicobacter pylori MH - Humans MH - Interferon-gamma/metabolism MH - Lansoprazole MH - Omeprazole/*analogs & derivatives/*therapeutic use MH - Peptic Ulcer/*drug therapy/microbiology/physiopathology MH - *Proton Pump Inhibitors MH - Ranitidine/therapeutic use MH - Recurrence MH - Tumor Necrosis Factor-alpha/metabolism EDAT- 2004/04/17 05:00 MHDA- 2004/07/14 05:00 CRDT- 2004/04/17 05:00 PHST- 2004/04/17 05:00 [pubmed] PHST- 2004/07/14 05:00 [medline] PHST- 2004/04/17 05:00 [entrez] PST - ppublish SO - Hepatogastroenterology. 2004 Mar-Apr;51(56):338-42.