期刊
GUT AND LIVER
卷 3, 期 3, 页码 174-179出版社
EDITORIAL OFFICE GUT & LIVER
DOI: 10.5009/gnl.2009.3.3.174
关键词
Small intestinal bacterial overgrowth; Intestinal permeability; Irritable bowel syndrome
Background/Aims: Small-intestinal bacterial over-growth (SIBO) is a frequent finding in patients with irritable bowel syndrome (IBS). Many patients with IBS also have abnormal intestinal permeability, which is probably due to low-grade inflammation in the intestinal mucosa. Our aim was to verify the relationship between SIBO and small-intestinal permeability in IBS patients. Methods: A cohort of 38 IBS patients (20 women and 18 men; age range 16-70 years; mean age 40.2 years) with symptoms that fulfilled Rome-II criteria, and 12 healthy controls (5 women and 7 men; age range 25-52 years; mean age: 37.8 years) were recruited. All subjects underwent lactulose breath tests (LBTs) and intestinal permeability tests using the polyethylene glycol (PEG) 3350/400 retrieval ratio. Results: A positive LBT was found in 18.4% (7/38) of patients with IBS and 8.3% (1/12) of control subjects. Intestinal permeability was significantly increased in patients with IBS compared with the normal controls (0.82 +/- 0.09 vs 0.41 +/- 0.05 [mean +/- SD], respectively; p<0.05). However, the intestinal permeability did not differ significantly between IBS patients with a positive LBT and those with a negative LBT (0.90 +/- 0.13 and 0.80 +/- 0.11, respectively; p>0.05). Conclusions: Intestinal permeability was increased in patients with IBS, but this finding did not correlated with the occurrence of SIBO. (Gut and Liver 2009; 3:174-179)
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