Chang FY, Chen CY, Lu CL, Luo JC, Lu RH, Lee SD. Response of blood endothelin-1 and nitric oxide activity in duodenal ulcer patients undergoing
Helicobacter pylori eradication.
World J Gastroenterol 2005;
11:1048-51. [PMID:
15742413 PMCID:
PMC4250770 DOI:
10.3748/wjg.v11.i7.1048]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of Helicobacter pylori eradication on endothelin-1 (ET-1) and nitric oxide (NO) in duodenal ulcer (DU) patients.
METHODS: Sixty-six H pylori-infected active DU patients were consecutively enrolled to receive one-week triple therapy (rabeprazole, amoxicillin and metronidazole) and then one-month rabeprazole therapy. They were asked back to determine ulcer and H pylori status using endoscopy one month later. Thirty-seven healthy controls (H pylori +/-: 17/20) were enrolled for comparison. Blood samples were collected in each visit to measure plasma ET-1 and nitrate/nitrite levels using an enzyme immunoassay kit.
RESULTS: Sixty DU patients finished trial per protocol. The ulcer healing and H pylori-eradication rates were 86.7% and 83.3%, respectively. Plasma ET-1 level in DU patients was higher than that of H pylori-negative and positive controls (3.59±0.96 vs 0.89±0.54 vs 0.3±0.2 pg/mL, P<0.01), while nitrate/nitrite levels among them were also significantly different (8.55±0.71 vs 5.27±0.68 vs 6.39±0.92 µmol/L, P<0.05). H pylori eradication diminished ET-1 levels (3.64±0.55 vs 2.64±0.55 pg/mL, P<0.01) but elevated nitrate/nitrite level (8.16±0.84 vs 11.41±1.42 µmol/L, P<0.05).
CONCLUSION: Both plasma ET-1 and nitrate/nitrite levels increase in active DU patients. After an effective H pylori eradication, DU healing is associated with diminished blood ET-1 level and elevated nitrate/nitrite level.
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