Document Detail

Altered intestinal microbiota in irritable bowel syndrome.
MedLine Citation:
PMID:  20414959     Owner:  NLM     Status:  MEDLINE    
Recent studies have suggested that alterations in the composition of the intestinal microbiota may play an important role in irritable bowel syndrome (IBS) symptoms. However, an association between the composition of the intestinal microbiota and IBS symptoms has not been clearly demonstrated. In the current issue of the Journal, Tana et al. suggest that altered intestinal microbiota contributes to the symptoms of IBS through increased levels of organic acids. In fecal samples, IBS patients had significantly higher numbers of Veillonella and Lactobacillus than healthy controls. They also showed significantly higher levels of acetic acid and propionic acid. Furthermore, IBS patients with high acetic acid or propionic acid levels presented more severe symptoms, impaired quality of life and negative emotions. These results are in accordance with the concept that the gut microbiota influences the sensory, motor and immune system of the gut and interacts with higher brain centers. Small intestinal bacterial overgrowth observed in a subset of IBS patients describes quantitative changes in the small intestinal microbiota. Data on qualitative changes in the gut microbiota in IBS patients are lacking. Different members of gut bacteria may have different influence on gut function. The concepts identified here may lead to the development of novel therapeutic strategies for IBS using manipulation of the intestinal microbiota.
K J Lee; J Tack
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Publication Detail:
Type:  Comment; Journal Article    
Journal Detail:
Title:  Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society     Volume:  22     ISSN:  1365-2982     ISO Abbreviation:  Neurogastroenterol. Motil.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-22     Completed Date:  2010-07-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9432572     Medline TA:  Neurogastroenterol Motil     Country:  England    
Other Details:
Languages:  eng     Pagination:  493-8     Citation Subset:  IM    
Department of Gastroenterology, Ajou University School of Medicine, Suwon, Korea.
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MeSH Terms
Colon / microbiology*
Feces / microbiology
Intestine, Small / microbiology*
Irritable Bowel Syndrome / drug therapy,  microbiology*
Probiotics / therapeutic use
Comment On:
Neurogastroenterol Motil. 2010 May;22(5):512-9, e114-5   [PMID:  19903265 ]

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