Bile Acids as Modulators of Gut Microbiota Linking Dietary Habits and Inflammatory Bowel Disease: A Potentially Dangerous Liaison

2013 ◽  
Vol 144 (4) ◽  
pp. 844-846 ◽  
Author(s):  
Michael Trauner ◽  
Peter Fickert ◽  
Herbert Tilg
Keyword(s):  
Inflammatory Bowel Disease ◽  
Gut Microbiota ◽  
Bile Acids ◽  
Bowel Disease ◽  
Dietary Habits ◽  
Inflammatory Bowel

scholarly journals Bile Acid–Gut Microbiota Axis in Inflammatory Bowel Disease: From Bench to Bedside

Nutrients ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 3143
Author(s):  
Min Yang ◽  
Yu Gu ◽  
Lingfeng Li ◽  
Tianyu Liu ◽  
Xueli Song ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bile Acid ◽  
Gut Microbiota ◽  
Bile Acids ◽  
Bowel Disease ◽  
Fecal Microbiota Transplantation ◽  
Bile Acid Metabolism ◽  
Inflammatory Disorder ◽  
Microbial Composition ◽  
Inflammatory Bowel

Inflammatory bowel disease (IBD) is a chronic, relapsing inflammatory disorder of the gastrointestinal tract, with increasing prevalence, and its pathogenesis remains unclear. Accumulating evidence suggested that gut microbiota and bile acids play pivotal roles in intestinal homeostasis and inflammation. Patients with IBD exhibit decreased microbial diversity and abnormal microbial composition marked by the depletion of phylum Firmicutes (including bacteria involved in bile acid metabolism) and the enrichment of phylum Proteobacteria. Dysbiosis leads to blocked bile acid transformation. Thus, the concentration of primary and conjugated bile acids is elevated at the expense of secondary bile acids in IBD. In turn, bile acids could modulate the microbial community. Gut dysbiosis and disturbed bile acids impair the gut barrier and immunity. Several therapies, such as diets, probiotics, prebiotics, engineered bacteria, fecal microbiota transplantation and ursodeoxycholic acid, may alleviate IBD by restoring gut microbiota and bile acids. Thus, the bile acid–gut microbiota axis is closely connected with IBD pathogenesis. Regulation of this axis may be a novel option for treating IBD.

scholarly journals Dietary Composition and Effects in Inflammatory Bowel Disease

Nutrients ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 1398 ◽  
Author(s):  
Fernando Castro ◽  
Heitor S. P. de Souza
Keyword(s):  
Inflammatory Bowel Disease ◽  
Gut Microbiota ◽  
Bowel Disease ◽  
Dietary Habits ◽  
Intestinal Inflammation ◽  
Dietary Factors ◽  
Food Components ◽  
Increased Risk ◽  
Inflammatory Bowel ◽  
Chronic Intestinal Inflammation

Dramatic changes in the environment and human lifestyle have been associated with the rise of various chronic complex diseases, such as inflammatory bowel disease (IBD). A dysbiotic gut microbiota has been proposed as a crucial pathogenic element, contributing to immune imbalances and fostering a proinflammatory milieu, which may be associated with disease relapses or even the initiation of IBD. In addition to representing important regulators of the mucosal immunity and the composition of the gut microbiota, food components have been shown to be potential environmental triggers of epigenetic modifications. In the context of chronic intestinal inflammation, dietary habits and specific food components have been implicated as important modulators of epigenetic mechanisms, including DNA methylation, which may predispose a person to the increased risk of the initiation and evolution of IBD. This review provides novel insights about how dietary factors may interact with the intestinal mucosa and modulate immune homeostasis by shaping the intestinal ecosystem, as well as the potential influence of diet in the etiopathogenesis and management of IBD.

scholarly journals The gut microbiota, bile acids and their correlation in primary sclerosing cholangitis associated with inflammatory bowel disease

2017 ◽  
Vol 6 (1) ◽  
pp. 112-122 ◽  
Author(s):  
J Torres ◽  
C Palmela ◽  
H Brito ◽  
X Bao ◽  
H Ruiqi ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bile Acid ◽  
Gut Microbiota ◽  
Bile Acids ◽  
Primary Sclerosing Cholangitis ◽  
Bowel Disease ◽  
Sclerosing Cholangitis ◽  
Colorectal Neoplasia ◽  
Bile Acid Pool ◽  
Inflammatory Bowel

Background Patients with primary sclerosing cholangitis associated with inflammatory bowel disease (PSC-IBD) have a very high risk of developing colorectal neoplasia. Alterations in the gut microbiota and/or gut bile acids could account for the increase in this risk. However, no studies have yet investigated the net result of cholestasis and a potentially altered bile acid pool interacting with a dysbiotic gut flora in the inflamed colon of PSC-IBD. Aim The aim of this study was to compare the gut microbiota and stool bile acid profiles, as well as and their correlation in patients with PSC-IBD and inflammatory bowel disease alone. Methods Thirty patients with extensive colitis (15 with concomitant primary sclerosing cholangitis) were prospectively recruited and fresh stool samples were collected. The microbiota composition in stool was profiled using bacterial 16S rRNA sequencing. Stool bile acids were assessed by high-performance liquid chromatography tandem mass spectrometry. Results The total stool bile acid pool was significantly reduced in PSC-IBD. Although no major differences were observed in the individual bile acid species in stool, their overall combination allowed a good separation between PSC-IBD and inflammatory bowel disease. Compared with inflammatory bowel disease alone, PSC-IBD patients demonstrated a different gut microbiota composition with enrichment in Ruminococcus and Fusobacterium genus compared with inflammatory bowel disease. At the operational taxonomic unit level major shifts were observed within the Firmicutes (73%) and Bacteroidetes phyla (17%). Specific microbiota-bile acid correlations were observed in PSC-IBD, where 12% of the operational taxonomic units strongly correlated with stool bile acids, compared with only 0.4% in non-PSC-IBD. Conclusions Patients with PSC-IBD had distinct microbiota and microbiota-stool bile acid correlations as compared with inflammatory bowel disease. Whether these changes are associated with, or may predispose to, an increased risk of colorectal neoplasia needs to be further clarified.

Gut microbiota pattern in relation to diet, physical activity and malnutrition in patients with inflammatory bowel disease: cases-control study

2019 ◽  
Author(s):  
Isabel Cornejo-Pareja ◽  
Beatriz Garcia-Munoz ◽  
Eduardo Romero-Perez ◽  
Eduardo Garcia-Fuentes ◽  
S Tapia-Paniagua ◽  
...  
Keyword(s):  
Physical Activity ◽  
Inflammatory Bowel Disease ◽  
Gut Microbiota ◽  
Bowel Disease ◽  
Inflammatory Bowel ◽  
Control Study

scholarly journals Tu1789 – Treatment Response to Ustekinumab and Vedolizumab in Inflammatory Bowel Disease: the Predictive Role of Gut Microbiota

2019 ◽  
Vol 156 (6) ◽  
pp. S-1124
Author(s):  
Clara Caenepeel ◽  
Sara Vieira-Silva ◽  
Jorge F. Vázquez-Castellanos ◽  
Bram Verstockt ◽  
Marc Ferrante ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Gut Microbiota ◽  
Treatment Response ◽  
Bowel Disease ◽  
Predictive Role ◽  
Inflammatory Bowel

scholarly journals IMPACT OF DIET ON INFLAMMATORY BOWEL DISEASE SYMPTOMS: AN ADOLESCENT VIEWPOINT

2021 ◽  
Vol 27 (Supplement_1) ◽  
pp. S58-S59
Author(s):  
Megan Zangara ◽  
Natalie Bhesania ◽  
Wei Liu ◽  
Gail Cresci ◽  
Jacob Kurowski ◽  
...  
Keyword(s):  
Inflammatory Bowel Disease ◽  
Bowel Disease ◽  
Dietary Habits ◽  
Therapeutic Option ◽  
Current Status ◽  
Dietary Modification ◽  
Continue Development ◽  
Disease Symptoms ◽  
Inflammatory Bowel ◽  
Active Disease

Abstract Background Dietary modification shows promise as therapy in inflammatory bowel disease (IBD); however, it is unknown whether adolescents are interested in a dietary approach. Methods Cross-sectional survey of adolescents with IBD ages 14–21 on disease knowledge, dietary habits, and perceptions of diet therapy. Results A total of 132 subjects (48.5% female), mean age of 17.8 years and median disease length of 5 years (range 0, 16), completed the survey. Diet was perceived as a symptom trigger by 59.8% of subjects, and 45.4% had tried using diet as a treatment for symptom resolution, often without physician supervision and with limited success. Overall, subjects reported following a diet significantly more often than documented in the electronic medical record (EMR) by the physician (25.0% vs. 15.0%, p=0.033), with 72% agreement between subject response and EMR documentation on current status of diet modification (AC1=0.59, CI=0.45, 0.73). Subjects experiencing active disease symptoms as determined by Manitoba IBD Index were more likely to be currently modifying their diet compared to subjects without active disease symptoms (OR = 4.11, CI=1.58, 10.73, p=0.003). The subjects reporting unsuccessful dietary modification compliancy (25.7%, n=34) most commonly cited perceived lack of improvement in their IBD symptoms as the primary reason for stopping the diet (48.4%, n=15). Conclusions Adolescents with IBD perceive a relationship between diet and disease symptoms and are interested in dietary modification as a symptom management option. Our study suggests that a large proportion of adolescent IBD patients may already be attempting dietary modification, and therefore would be receptive to a modified dietary plan under the guidance of their gastroenterologist and dietitian. Much is still unknown about how dietary modification will fit in with current treatment regimens, but patient interest informs us that it is necessary to continue development and research of this promising therapeutic option.

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