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irritable bowel syndrome biofilm

James F White
This article outlines the proposed 'syntrophic imbalance hypothesis' for etiology of bacterial endoparasitism diseases. This hypothesis involves microbes (archaea and bacteria) that exist in human body biofilms in syntrophic associations, where bacteria ferment nutrients to produce short chain fatty acids (SCFAs) that are used by methanogenic archaeons to produce methane. Overgrowth of archaea on human tissues (e.g., in association with intestines, teeth or lungs) results in excessive removal of SCFAs from the biofilms and this triggers bacteria in the free-living biofilm state to convert to the endoparasitic state and become intracellular in host cells where they incite inflammation and disease...
September 2017: Medical Hypotheses
Jennifer K Beatty, Sarah V Akierman, Jean-Paul Motta, Stacy Muise, Matthew L Workentine, Joe J Harrison, Amol Bhargava, Paul L Beck, Kevin P Rioux, Gordon Webb McKnight, John L Wallace, Andre G Buret
Giardia duodenalis is a prevalent cause of acute diarrheal disease worldwide. However, recent outbreaks in Italy and Norway have revealed a link between giardiasis and the subsequent development of chronic post-infectious irritable bowel syndrome. While the mechanisms underlying the causation of post-infectious irritable bowel syndrome remain obscure, recent findings suggest that alterations in gut microbiota communities are linked to the pathophysiology of irritable bowel syndrome. In the present study, we use a laboratory biofilm system to culture and enrich mucosal microbiota from human intestinal biopsies...
May 2017: International Journal for Parasitology
David M Rothstein
Rifamycins inhibit RNA polymerase of most bacterial genera. Rifampicin remains part of combination therapy for treating tuberculosis (TB), and for treating Gram-positive prosthetic joint and valve infections, in which biofilms are prominent. Rifabutin has use for AIDS patients in treating mycobacterial infections TB and Mycobacterium avium complex (MAC), having fewer drug-drug interactions that interfere with AIDS medications. Rifabutin is occasionally used in combination to eradicate Helicobacter pylori (peptic ulcer disease)...
July 1, 2016: Cold Spring Harbor Perspectives in Medicine
Barbara Andrzejewska, Beata Magdalena Sobieszczańska
INTRODUCTION: Many pathogenic bacterial species have the ability to biofilm formation. In our study we determined the influence of Lactobacillus casei on biofilm formation by enteroaggregative Escherichia coli (EAEC) strains obtained from irritable bowel syndrome patients. METHODS: The ability of EAEC isolates to biofilm formation was assessed in the presence of various concentrations of the probiotic L. casei strain in an a semi- quantitative microtitre plate assays under culture conditions, similar to those prevailing in the human intestine...
2013: Medycyna Doświadczalna i Mikrobiologia
Richard Nahas
Previous reviews have highlighted complementary and alternative medicine therapies that are used to treat irritable bowel syndrome (IBS) based on published clinical trial data. Here the author describes and comments on a number of potentially relevant factors that have been commonly emphasized by practitioners who treat IBS and patients who have the disease. They include gluten and other food allergies, the candida syndrome and biofilm, interference fields and post-infectious IBS, as well as mind-body factors...
June 2011: Chinese Journal of Integrative Medicine
P Kaur, A Chakraborti, A Asea
Enteroaggregative Escherichia coli (EAEC) are quite heterogeneous category of an emerging enteric pathogen associated with cases of acute or persistent diarrhea worldwide in children and adults, and over the past decade has received increasing attention as a cause of watery diarrhea, which is often persistent. EAEC infection is an important cause of diarrhea in outbreak and non-outbreak settings in developing and developed countries. Recently, EAEC has been implicated in the development of irritable bowel syndrome, but this remains to be confirmed...
2010: Interdisciplinary Perspectives on Infectious Diseases
Jürgen Schulze, Ulrich Sonnenborn
BACKGROUND: Controversy still surrounds the question whether yeasts found in the gut are causally related to disease, constitute a health hazard, or require treatment. METHODS: The authors present the state of knowledge in this area on the basis of a selective review of articles retrieved by a PubMed search from 2005 onward. The therapeutic recommendations follow the current national and international guidelines. RESULTS: Yeasts, mainly Candida species, are present in the gut of about 70% of healthy adults...
December 2009: Deutsches Ärzteblatt International
Alexander Swidsinski, Jutta Weber, Vera Loening-Baucke, Laura P Hale, Herbert Lochs
The composition and spatial organization of the mucosal flora in biopsy specimens from patients with inflammatory bowel disease (IBD; either Crohn's disease or ulcerative colitis), self-limiting colitis, irritable-bowel syndrome (IBS), and healthy controls were investigated by using a broad range of fluorescent bacterial group-specific rRNA-targeted oligonucleotide probes. Each group included 20 subjects. Ten patients who had IBD and who were being treated with antibiotics were also studied. Use of nonaqueous Carnoy fixative to preserve the mucus layer was crucial for detection of bacteria adherent to the mucosal surface (mucosal bacteria)...
July 2005: Journal of Clinical Microbiology
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