PMID- 14614600 OWN - NLM STAT- MEDLINE DCOM- 20040423 LR - 20151119 IS - 0944-1174 (Print) IS - 0944-1174 (Linking) VI - 38 IP - 10 DP - 2003 TI - Influence of anti-ulcer drugs used in Japan on the result of (13)C-urea breath test for the diagnosis of Helicobacter pylori infection. PG - 937-41 AB - BACKGROUND: The (13)C-urea breath test (UBT) is a simple breath test for the diagnosis of Helicobacter pylori infection, but several factors have been reported to affect the results of this test. In this study, the effects of the antiulcer drugs used in Japan on the results of UBT were determined. METHODS: The subjects of the study were 64 adult volunteers who tested positive for H. pylori infection by the serum antibody method. Eight classes of anti-ulcer drugs used in Japan were administered at their usual doses to these subjects: lansoprazole, a proton pump inhibitor (PPI); nizatidine, an H(2)-receptor antagonist (H(2)RA); and polaprezinc, ecabet sodium, rebamipide, teprenone, cetraxate hydrochloride, and sucralfate, all mucoprotective agents. The study drugs were randomized for administration to the subjects, and each of the drugs was administered for 14 consecutive days. The UBT was performed on days 0, 14, and 21. RESULTS: The mean Delta(13)C per thousand in the lansoprazole group was significantly decreased on day 14, to below 10 per thousand, in 4 of 16 subjects, and in 1 of the 4 subjects, the test result was negative, with the Delta(13)C per thousand falling to 1.7 per thousand. The value returned to baseline 1 week after the discontinuation of lansoprazole. The other drugs administered had no significant effect on the result of the UBT, except that the mean Delta(13)C per thousand showed a tendency to decrease after the administration of ecabet sodium and rebamipide. CONCLUSIONS: Administration of a PPI may produce a false-negative UBT result, while other anti-ulcer drugs, for the most part, have little effect on the result of the UBT when used alone. The (13)C-urea breath test (UBT) is a simple test for the diagnosis of Helicobacter pylori infection, but several factors have been reported to affect the results of this test. In this study, the effects of the anti-ulcer drugs used in Japan on the results of the UBT were determined. FAU - Murakami, Kazunari AU - Murakami K AD - Second Department of Internal Medicine, Oita Medical University, 1-1 Hasama, 879-5593 Oita, Japan. FAU - Sato, Ryugo AU - Sato R FAU - Okimoto, Tadayoshi AU - Okimoto T FAU - Watanabe, Koichiro AU - Watanabe K FAU - Nasu, Masaru AU - Nasu M FAU - Fujioka, Toshio AU - Fujioka T FAU - Kodama, Masaaki AU - Kodama M FAU - Kagawa, Jiro AU - Kagawa J LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Randomized Controlled Trial PL - Japan TA - J Gastroenterol JT - Journal of gastroenterology JID - 9430794 RN - 0 (2-Pyridinylmethylsulfinylbenzimidazoles) RN - 0 (Anti-Ulcer Agents) RN - 0 (Carbon Radioisotopes) RN - 0 (Histamine H2 Antagonists) RN - 0 (Proton Pump Inhibitors) RN - 0 (Proton Pumps) RN - 0K5C5T2QPG (Lansoprazole) RN - 8W8T17847W (Urea) RN - KG60484QX9 (Omeprazole) RN - P41PML4GHR (Nizatidine) SB - IM MH - 2-Pyridinylmethylsulfinylbenzimidazoles MH - Adult MH - Anti-Ulcer Agents/administration & dosage/*therapeutic use MH - Breath Tests MH - Carbon Radioisotopes/metabolism MH - Dose-Response Relationship, Drug MH - False Negative Reactions MH - Female MH - Helicobacter Infections/*diagnosis/*drug therapy/microbiology MH - Helicobacter pylori/*drug effects MH - Histamine H2 Antagonists/administration & dosage MH - Humans MH - Japan/epidemiology MH - Lansoprazole MH - Male MH - Middle Aged MH - Nizatidine/administration & dosage MH - Omeprazole/administration & dosage/*analogs & derivatives MH - Proton Pump Inhibitors MH - Proton Pumps/administration & dosage MH - Time Factors MH - Treatment Outcome MH - *Urea/metabolism EDAT- 2003/11/14 05:00 MHDA- 2004/04/24 05:00 CRDT- 2003/11/14 05:00 PHST- 2002/09/20 00:00 [received] PHST- 2003/03/14 00:00 [accepted] PHST- 2003/11/14 05:00 [pubmed] PHST- 2004/04/24 05:00 [medline] PHST- 2003/11/14 05:00 [entrez] AID - 10.1007/s00535-003-1176-x [doi] PST - ppublish SO - J Gastroenterol. 2003;38(10):937-41. doi: 10.1007/s00535-003-1176-x.