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Identification of Helicobacter pylori DNA in human cholesterol gallstones
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Plastic Surgery, Hand Surgery and Burns. Östergötlands Läns Landsting, Reconstruction Centre, Department of Plastic Surgery, Hand surgery UHL.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Surgery. Östergötlands Läns Landsting, Centre of Surgery and Oncology, Department of Surgery in Östergötland.
2002 (English)In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, Vol. 37, no 1, 112-119 p.Article in journal (Refereed) Published
Abstract [en]

Background: The gallbladder mucosa secretes hydrogen ions and is covered by mucus. The environmental conditions for bacterial colonization are similar to those in the stomach. Gallbladder stones often contain DNA from enteric bacteria, but no compelling evidence demonstrates that Helicobacter spp. have been present. The aim of this study was to establish bacterial DNA profiles in cholesterol gallstones with special reference to Helicobacter pylori. Methods: Cholesterol gallstones from 20 patients were subjected to polymerase chain reaction, bacterial profiling by temporal temperature gradient gel electrophoresis, automated DNA sequencing, and Southern blot analysis using a Helicobacter sp. specific primer. A nested ureI-PCR assay was used to discriminate between gastric and non-gastric H. pylori. Results: TTGE, partial 16S rDNA sequencing, and hybridization analysis revealed the presence of DNA presumably representing a mixed bacterial flora in cholesterol gallstones, including H. pylori in the gallstone centres in 11 out of 20 patients. In three cases, the ureI-PCR assay revealed non-gastric H. pylori. Conclusions: These data support the presence of DNA from a mixed bacterial population, including H. pylori in cholesterol gallstones, reflecting either that H. pylori is an indigenous part of a flora in the stone-containing gallbladder or, alternatively, that H. pylori colonization in the biliary tract predisposes to cholesterol gallstone formation.

Place, publisher, year, edition, pages
2002. Vol. 37, no 1, 112-119 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-25397DOI: 10.1080/003655202753387455Local ID: 9840OAI: diva2:245726
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2011-01-13

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Zdolsek, JohannSvanvik, Joar
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Faculty of Health SciencesPlastic Surgery, Hand Surgery and BurnsDepartment of Plastic Surgery, Hand surgery UHLSurgeryDepartment of Surgery in Östergötland
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Scandinavian Journal of Gastroenterology
Medical and Health Sciences

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