Helicobacter · 2005
Effect of the carbonic anhydrase inhibitor, acetazolamide, on Helicobacter pylori infection in vivo: a pilot study.
Клиническое исследованиеКлиническое исследование I фазыСтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАПоддержка правительства СШАПоддержка службы здравоохранения СШАНазвание и аннотация: Перевод в очереди
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Shahidzadeh Rassa, Opekun Antone, Shiotani Akiko, Graham David Y
Аннотация
BACKGROUND: Carbonic anhydrase inhibitors have been successfully used to treat peptic ulcers. Although carbonic anhydrase restriction does not inhibit Helicobacter pylori in vitro, recent studies suggest that carbonic anhydrase inhibition reduces the ability of H. pylori to survive in an acid environment as present in the stomach.
METHODS: In a pilot study, we examined the effect of acetazolamide 500 mg as twice a day for 4 days in volunteers with active H. pylori infection. Effectiveness was judged by changes in the results of the urea breath test.
RESULTS: Eight H. pylori infected volunteers completed the test. No urea breath test reverted to negative and there was a trend for the urea breath test value to increase [e.g. delta over baseline (DOB) mean +/- SE increased from 50.9 +/- 13 at baseline to 64.9 +/- 13 at day 5] during treatment with acetazolamide.
CONCLUSION: The potential effect of carbonic anhydrase inhibitors on acid secretion may prevent effect on H. pylori in vivo and/or the sites of infection at the surface of the stomach may have a pH higher for any postulated acid-dependent effect to have an effect clinically.
METHODS: In a pilot study, we examined the effect of acetazolamide 500 mg as twice a day for 4 days in volunteers with active H. pylori infection. Effectiveness was judged by changes in the results of the urea breath test.
RESULTS: Eight H. pylori infected volunteers completed the test. No urea breath test reverted to negative and there was a trend for the urea breath test value to increase [e.g. delta over baseline (DOB) mean +/- SE increased from 50.9 +/- 13 at baseline to 64.9 +/- 13 at day 5] during treatment with acetazolamide.
CONCLUSION: The potential effect of carbonic anhydrase inhibitors on acid secretion may prevent effect on H. pylori in vivo and/or the sites of infection at the surface of the stomach may have a pH higher for any postulated acid-dependent effect to have an effect clinically.