Quest Vitamins LTD,
Issue # 69.1: Probiotics For Stomach Ulcers
Probiotics and Ulcerative Colitis
Ulcerative colitis (UC) is an acute and chronic inflammatory bowel disease of unknown aetiology, although bacterial species belonging to the normal colonic microbiota are known to be involved in its initiation and maintenance. Several organisms have been linked to the disease; however, mucosa-associated bacteria are more likely to be involved than their luminal counterparts, due to their close proximity to the host epithelium. Complex bacterial communities were found in both groups, with significant reductions in bifidobacterial numbers in UC, which suggested that they might have a protective role in the disease. Accordingly, a therapy for treating UC was designed, with the aim of modifying the mucosal microbiota to increase bifidobacterial colonisation and reduce inflammation. A synbiotic comprising a probiotic (Bifidobacterium longum) isolated from healthy rectal mucosa combined with a prebiotic was developed. The treatment was used in a randomised controlled trial involving eighteen patients with active UC, for a period of 1 month. Rectal biopsies were collected at the beginning and end of the study. Results demonstrated that short-term synbiotic treatment resulted in increased bifidobacterial colonisation of the rectal mucosa and induced significant reductions in the expression UC.
Br J Nutr. 2005 Apr;93 Suppl 1:S67-72
B.longum for Ulcerative Colitis
Ulcerative colitis (UC) is an inflammatory disease of the large bowel with an unknown cause. The immune response against normal commensal microorganisms is believed to drive inflammatory processes associated with UC. Therefore, modulation of bacterial communities on the gut mucosa, through the use of probiotics and prebiotics, may be used to modify the disease state. A synbiotic was developed for use in UC patients combining a probiotic, Bifidobacterium longum, isolated from healthy rectal epithelium, and a prebiotic, a preferential inulin-oligofructose growth substrate for the probiotic strain. Treatment was employed in a double blinded randomised controlled trial using 18 patients with active UC for a period of one month. The results showed that short term synbiotic treatment of active UC resulted in improvement of the full clinical appearance of chronic inflammation in patients receiving this therapy.
Gut. 2005 Feb;54(2):242-9
Probiotics Inhibit H.Pylori
Literature reporting activity of probiotics in infections due to Helicobacter pylori has been reviewed to assess their value in combating such infections. Several in vitro studies show that lactobacilli or their cell-free cultures inhibit or kill H. pylori, prevent its adhesion to mammalian epithelial cells and prevent IL8 release. In vivo models demonstrate that pre-treatment with a probiotic can prevent H. pylori infections and/or that administration of probiotics markedly reduced an existing infection. Thirteen clinical trials have been published. In six (180 patients), a probiotic was used alone; five of these had an encouraging result-in three there were significantly reduced breath test readings and in two others some patients were cleared of infection. In seven further trials (682 patients), probiotics were added to a therapeutic regimen of antibiotics, resulting in an increased cure rate in two studies, and reduced side-effects in four. The results suggest that probiotics may have a place as adjunctive treatment in H. pylori infections and possibly in prophylaxis.
Int J Antimicrob Agents. 2003 Oct;22(4):360-6.