Gastric bypass surgery does not increase susceptibility to Helicobacter pylori infection in the stomach of rat or mouse

被引:6
作者
Stenström B. [1 ]
Løseth K. [2 ]
Bevanger L. [2 ]
Sturegård E. [3 ]
Wadström T. [3 ]
Chen D. [1 ]
机构
[1] Department of Cancer Research and Molecular Medicine, University Hospital Trondheim, 7006 Trondheim
[2] Department of Laboratory Medicine, Children's and Women's Health, Norwegian University of Science and Technology, Trondheim
[3] Department of Medical Microbiology, Lund University, Lund
关键词
Gastric bypass; Helicobacter pylori; Mouse; Rat;
D O I
10.1163/156856005774423791
中图分类号
学科分类号
摘要
Gastric bypass is a clinical option for obesity surgery. An increased susceptibility to Helicobacter pylori infection in the bypassed stomach has been speculated. The aim of the present study was to examine the susceptibility of the bypassed stomach to H. pylori infection in rats and mice. Adult Sprague-Dawley and Wistar rats and NMRI mice were subjected to either gastric bypass or laparotomy only as control. The animals were inoculated with the CagA- and VizcA-positive H. pylori strain 67/21 (not mouse-adapted) in the first experiment and with 9 additional isolates in the second, by injection into the bypassed stomach or the control stomach during surgery. The stomach of each animal was collected for H. pylori culture 2-3 weeks later. While all the rats were H. pylori negative, 54% of gastric bypassed mice and 75% of controls were positive (P = 0.4). We conclude that susceptibility to H. pylori infection in the stomach is not increased by gastric bypass surgery. © VSP 2005.
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页码:229 / 234
页数:5
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