Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-4-14
pubmed:abstractText
Convincing evidence from both animal models and the study of patients with ulcerative colitis (UC) implicates the intestinal microflora in the initiation and maintenance of the inflammatory processes in this condition. Despite this, no specific pathogen has been identified as causal and the disease is widely believed to occur as the result of a genetically determined, but abnormal immune response to commensal bacteria. When compared with healthy people, UC patients have increased levels of mucosal IgG directed against the normal microflora. Studies of mucosal bacterial populations in UC indicate that there may be increased numbers of organisms, but reduced counts of "protective" bacteria such as lactobacilli and bifidobacteria. In animal models of colitis, antibiotics, particularly metronidazole, clindamycin, ciprofloxacin and the combination of vancomycin/impinemem protect against UC, especially if given before the onset of inflammation. These antibiotics target anaerobes and some Gram-positive organisms such as enterococci. However, antibiotic use in more than a dozen randomised control trials has been very disappointing, probably because we do not know which species to target, when to give the antibiotics, for how long and in what combinations. Surprisingly, therefore, there is a consistent benefit in the small number of studies reported of probiotics to manage UC and pouchitis. There is scope for more work in this area focussing on the mucosal microflora, its interactions with the gut immune system, its metabolic properties and the potential ways of modifying it.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1466-531X
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9-20
pubmed:dateRevised
2006-4-13
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Intestinal bacteria and ulcerative colitis.
pubmed:affiliation
Department of Molecular and Cellular Pathology, University of Dundee, Ninewells Hospital Medical School, Dundee DD1 9SY, UK. h.cowper@dundee.ac.uk
pubmed:publicationType
Journal Article, Review