keyword
MENU ▼
Read by QxMD icon Read
search

Microbiota inflammatory bowel disease

keyword
https://www.readbyqxmd.com/read/29234327/influence-of-microbiota-on-intestinal-immune-system-in-ulcerative-colitis-and-its-intervention
#1
REVIEW
Sai-Long Zhang, Shu-Na Wang, Chao-Yu Miao
Ulcerative colitis (UC) is an inflammatory bowel disease (IBD) with chronic and recurrent characteristics caused by multiple reasons. Although the pathogenic factors have not been clarified yet, recent studies have demonstrated that intestinal microbiota plays a major role in UC, especially in the immune system. This review focuses on the description of several major microbiota communities that affect UC and their interactions with the host. In this review, eight kinds of microbiota that are highly related to IBD, including Faecalibacterium prausnitzii, Clostridium clusters IV and XIVa, Bacteroides, Roseburia species, Eubacterium rectale, Escherichia coli, Fusobacterium, and Candida albicans are demonstrated on the changes in amount and roles in the onset and progression of IBD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29230419/proteobacteria-a-common-factor-in-human-diseases
#2
REVIEW
G Rizzatti, L R Lopetuso, G Gibiino, C Binda, A Gasbarrini
Microbiota represents the entire microbial community present in the gut host. It serves several functions establishing a mutualistic relation with the host. Latest years have seen a burst in the number of studies focusing on this topic, in particular on intestinal diseases. In this scenario, Proteobacteria are one of the most abundant phyla, comprising several known human pathogens. This review highlights the latest findings on the role of Proteobacteria not only in intestinal but also in extraintestinal diseases...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29228248/comparison-of-the-intestinal-mucosal-microbiota-in-dogs-diagnosed-with-idiopathic-inflammatory-bowel-disease-and-dogs-with-food-responsive-diarrhea-before-and-after-treatment
#3
K Kalenyak, A Isaiah, R M Heilmann, J S Suchodolski, I A Burgener
We report the first study to evaluate the intestinal mucosal microbiota of dogs with inflammatory bowel disease (IBD) and dogs with food-responsive diarrhea (FRD) before and after treatment. It was hypothesized that differences in the microbial composition exist between both disease groups and within groups pre- vs. post-treatment. Duodenal and colonic biopsies were obtained endoscopically from 24 dogs (15 FRD, 9 IBD) before and after treatment. The intestinal microbiota was evaluated by Illumina sequencing of the bacterial 16S rRNA gene...
December 6, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29228157/gut-epithelial-vitamin-d-receptor-regulates-microbiota-dependent-mucosal-inflammation-by-suppressing-intestinal-epithelial-cell-apoptosis
#4
Lei He, Tianjing Liu, Yongyan Shi, Feng Tian, Huiyuan Hu, Dilip K Deb, Yinyin Chen, Marc Bissonnette, Yan Chun Li
Recent studies show that colonic vitamin D receptor (VDR) signaling protects the mucosal epithelial barrier and suppresses colonic inflammation, but the underlying molecular mechanism remains to be fully understood. To investigate the implication of colonic VDR down-regulation seen in patients with inflammatory bowel disease, we assessed the effect of gut epithelial VDR deletion on colonic inflammatory responses in an experimental colitis model. In 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis model, mice carrying VDR deletion in gut epithelial cells (VDRf/f;Villin-Cre or VDRΔIEC) or in colonic epithelial cells (VDRf/f;CDX2-Cre or VDRΔCEC) developed more severe clinical colitis than VDRf/f control mice, characterized by more robust TH1 and TH17 responses, with greater increases in mucosal IFN-γ+, IL-17+ and IFN-γ+IL-17+ T cells...
December 7, 2017: Endocrinology
https://www.readbyqxmd.com/read/29226561/the-long-term-effects-of-faecal-microbiota-transplantation-for-gastrointestinal-symptoms-and-general-health-in-patients-with-recurrent-clostridium-difficile-infection
#5
J Jalanka, A Hillamaa, R Satokari, E Mattila, V-J Anttila, P Arkkila
BACKGROUND: Faecal microbiota transplantation (FMT) is an effective treatment for recurrent Clostridium difficile infection. In short-term the treatment has been shown to be safe, however, there are no large, long-term follow-up studies looking into the potential adverse effects. AIM: To analyse the long-term effect of FMT treatment in patients with recurrent C. difficile infection and to compare the outcome to antibiotic treated patients. METHODS: Altogether 84 patients of which 45 received a FMT treatment and 39 served as controls receiving antibiotics for the infection were followed on average for 3...
December 11, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29215589/impact-of-omega-3-fatty-acids-on-the-gut-microbiota
#6
REVIEW
Lara Costantini, Romina Molinari, Barbara Farinon, Nicolò Merendino
Long-term dietary habits play a crucial role in creating a host-specific gut microbiota community in humans. Despite the many publications about the effects of carbohydrates (prebiotic fibers), the impact of dietary fats, such as omega-3 polyunsaturated fatty acids (PUFAs), on the gut microbiota is less well defined. The few studies completed in adults showed some common changes in the gut microbiota after omega-3 PUFA supplementation. In particular, a decrease in Faecalibacterium, often associated with an increase in the Bacteroidetes and butyrate-producing bacteria belonging to the Lachnospiraceae family, has been observed...
December 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29211010/meta-analysis-of-fecal-microbiota-and-metabolites-in-experimental-colitic-mice-during-the-inflammatory-and-healing-phases
#7
Toshifumi Osaka, Eri Moriyama, Shunichi Arai, Yasuhiro Date, Junji Yagi, Jun Kikuchi, Satoshi Tsuneda
The imbalance of gut microbiota is known to be associated with inflammatory bowel disease, but it remains unknown whether dysbiosis is a cause or consequence of chronic gut inflammation. In order to investigate the effects of gut inflammation on microbiota and metabolome, the sequential changes in gut microbiota and metabolites from the onset of colitis to the recovery in dextran sulfate sodium-induced colitic mice were characterized by using meta 16S rRNA sequencing and proton nuclear magnetic resonance (¹H-NMR) analysis...
December 6, 2017: Nutrients
https://www.readbyqxmd.com/read/29205651/gut-microbiota-in-early-life-and-its-influence-on-health-and-disease-a-position-paper-by-the-malaysian-working-group-on-gastrointestinal-health
#8
Yeong Yeh Lee, Siti Asma Hassan, Intan Hakimah Ismail, Sze Yee Chong, Raja Affendi Raja Ali, Syafinaz Amin Nordin, Way Seah Lee, Noorizan Abdul Majid
The role of gut microbiota in early life and its impact on gut health and subsequent diseases remain unclear. There is a lack of research and awareness in this area, especially in the Asia-Pacific region, including Malaysia. This paper reports the position of a Malaysian Working Group on some key issues surrounding gut microbiota in early life and its role in gut health and diseases, as well as experts' stand on probiotics and prebiotics. The group reached a consensus that certain factors, including elective caesarean; premature deliveries; complementary feeding; use of antibiotics, prebiotics and/or probiotics; and exposure to the external environmental, have an impact on gut microbiota in early life...
December 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29204051/intestinal-epithelium-intraepithelial-lymphocytes-and-the-gut-microbiota-key-players-in-the-pathogenesis-of-celiac-disease
#9
REVIEW
Bożena Cukrowska, Agnieszka Sowińska, Joanna Beata Bierła, Elżbieta Czarnowska, Anna Rybak, Urszula Grzybowska-Chlebowczyk
Celiac disease (CD) is a chronic immune-mediated disorder triggered by the ingestion of gluten in genetically predisposed individuals. Before activating the immune system, gluten peptides are transferred by the epithelial barrier to the mucosal lamina propria, where they are deamidated by intestinal tissue transglutaminase 2. As a result, they strongly bind to human leucocyte antigens (HLAs), especially HLA-DQ2 and HLA-DQ8, expressed on antigen-presenting cells. This induces an inflammatory response, which results in small bowel enteropathy...
November 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29198534/an-intragastric-fecal-microbiota-transplantation-program-for-treatment-of-recurrent-clostridium-difficile-in-children-is-efficacious-safe-and-inexpensive
#10
David E Brumbaugh, Edwin F De Zoeten, Amy Pyo-Twist, Sara Fidanza, Shannon Hughes, Susan A Dolan, Jason Child, Samuel R Dominguez
OBJECTIVE: To assess the safety, efficacy, and relative expense of a nurse-led fecal microbiota transplantation (FMT) program for the treatment of recurrent Clostridium difficile infection (CDI). STUDY DESIGN: Retrospective cohort study design in children aged 1-18 years with recurrent CDI. The intervention was an intragastric FMT with stool derived from a donor stool bank. Primary outcome was resolution of diarrhea at 3 months post-transplantation. A secondary analysis compared charge data associated with FMT by intragastric delivery vs administration by colonoscopy or nasoduodenal tube...
November 30, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29198451/development-of-the-microbiota-in-infants-and-its-role-in-maturation-of-the-gut-mucosa-and-the-immune-system
#11
Cecilia Ximenez, Javier Torres
Dysbiosis of the gut microbiota has been associated with increasing numbers of diseases, including obesity, diabetes, inflammatory bowel disease, asthma, allergy, cancer and even neurologic or behavioral disorders. The other side of the coin is that a healthy microbiota leads to a healthy human development, to a mature and well trained immune system and to an efficient metabolic machinery. What we have learned in adults is in the end the result of a good start, a programmed, healthy development of the microbiota that must occur in the early years of life, probably even starting during the fetal stage...
November 30, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29195141/il-17-is-a-protection-effector-against-the-adherent-invasive-escherichia-coli-in-murine-colitis
#12
Hai-Jia Zhang, Bin Xu, Hu Wang, Bing Xu, Guo-Dong Wang, Ming-Zuo Jiang, Chao Lei, Mei-Ling Ding, Peng-Fei Yu, Yong-Zhan Nie, Kai-Chun Wu, Su-Mei Sha, Meng-Bin Li
Inflammatory bowel disease (IBD) is caused by aberrant immune responses to the gut microbiota. Among the gut microbiota, adherent-invasive Escherichia Coli (AIEC) is thought to be the pathogen through invading the intestinal epithelial cells and causing inflammation. IL-17 secretion increase, induced by enhanced bacterial adhesion to the intestine epithelium, could on one hand protect the mucosa, but on the other hand, over amount of IL-17 initializes inflammation reactions that in turn damages the mucosa. The relationship between IL-17 and AIEC is still unclear...
November 28, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29184071/preventive-trichuris-suis-ova-tso-treatment-protects-immunocompetent-rabbits-from-dss-colitis-but-may-be-detrimental-under-conditions-of-immunosuppression
#13
Irina Leonardi, Alexandra Gerstgrasser, Thomas S B Schmidt, Flora Nicholls, Bernhard Tewes, Roland Greinwald, Christian von Mering, Gerhard Rogler, Isabelle Frey-Wagner
Trichuris suis ova (TSO) have been tested for therapeutic application in inflammatory bowel diseases (IBD) yet understanding of the underlying mechanisms and safety in an immunocompromised host is limited due to lack of a suitable animal model. We used a recently established rabbit model of dextran sodium sulphate (DSS) induced colitis to study the efficacy, mechanisms and safety of TSO therapy in immunocompetent and immunosuppressed animals. TSO treatment prevented the DSS induced weight loss, delayed the onset of DSS induced symptoms by 2 days and significantly reduced the disease activity (DAI)...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29183720/contemporary-applications-of-fecal-microbiota-transplantation-to-treat-intestinal-diseases-in-humans
#14
REVIEW
Christopher Staley, Alexander Khoruts, Michael J Sadowsky
The intestinal microbiota comprise an important organ that plays a vital role in host digestion, development, energy maintenance, hemostasis, and immunity. Disruption of the gut microbial community due to diet, lifestyle, or antibiotic exposure increases susceptibility to chronic infection and disease. Fecal microbiota transplantation (FMT) involves the transfer of gut microbiota from a healthy donor to a patient in order to restore normal diversity and function of the microbial community. This method has become a well established alternative therapy for the treatment of recurrent Clostridium difficile infection...
November 25, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29180726/intergenerational-transfer-of-antibiotic-perturbed-microbiota-enhances-colitis-in-susceptible-mice
#15
Anjelique F Schulfer, Thomas Battaglia, Yelina Alvarez, Luc Bijnens, Victoria E Ruiz, Melody Ho, Serina Robinson, Tonya Ward, Laura M Cox, Arlin B Rogers, Dan Knights, R Balfour Sartor, Martin J Blaser
Antibiotic exposure in children has been associated with the risk of inflammatory bowel disease (IBD). Antibiotic use in children or in their pregnant mother can affect how the intestinal microbiome develops, so we asked whether the transfer of an antibiotic-perturbed microbiota from mothers to their children could affect their risk of developing IBD. Here we demonstrate that germ-free adult pregnant mice inoculated with a gut microbial community shaped by antibiotic exposure transmitted their perturbed microbiota to their offspring with high fidelity...
November 27, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/29180648/csa13-inhibits-colitis-associated-intestinal-fibrosis-via-a-formyl-peptide-receptor-like-1-mediated-hmg-coa-reductase-pathway
#16
Chunlan Xu, Sally Ghali, Jiani Wang, David Q Shih, Christina Ortiz, Caroline C Mussatto, Elaine C Lee, Diana H Tran, Jonathan P Jacobs, Venu Lagishetty, Phillip Fleshner, Lori Robbins, Michelle Vu, Tressia C Hing, Dermot P B McGovern, Hon Wai Koon
Many Crohn's disease (CD) patients develop intestinal strictures, which are difficult to prevent and treat. Cationic steroid antimicrobial 13 (CSA13) shares cationic nature and antimicrobial function with antimicrobial peptide cathelicidin. As many functions of cathelicidin are mediated through formyl peptide receptor-like 1 (FPRL1), we hypothesize that CSA13 mediates anti-fibrogenic effects via FPRL1. Human intestinal biopsies were used in clinical data analysis. Chronic trinitrobenzene sulfonic acid (TNBS) colitis-associated intestinal fibrosis mouse model with the administration of CSA13 was used...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29179485/cost-effectiveness-analysis-of-fecal-microbiota-transplantation-for-inflammatory-bowel-disease
#17
Ting Zhang, Jie Xiang, Bota Cui, Zhi He, Pan Li, Hai Chen, Lijuan Xu, Guozhong Ji, Yongzhan Nie, Kaichun Wu, Daiming Fan, Guangming Huang, Jianling Bai, Faming Zhang
There is a lack of health economics evidence on the use of fecal microbiota transplantation (FMT) for inflammatory bowel disease (IBD). This study aims to evaluate the cost-effectiveness before (with conventional therapy) and after introducing FMT for treating IBD. 104 patients with IBD received FMT were recruited. Health status was evaluated by European dimension health table (ED-5Q). Incremental cost-effectiveness ratio (ICER) and net monetary benefit (NB) were calculated by different age groups, genders, smoking status, and disease subtypes...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29174952/interactions-between-diet-and-the-intestinal-microbiota-alter-intestinal-permeability-and-colitis-severity-in-mice
#18
Sean R Llewellyn, Graham J Britton, Eduardo J Contijoch, Olivia H Vennaro, Arthur Mortha, Jean-Frederic Colombel, Ari Grinspan, Jose C Clemente, Miriam Merad, Jeremiah J Faith
BACKGROUND & AIMS: It is not clear how the complex interactions between diet and the intestinal microbiota affect development of mucosal inflammation or inflammatory bowel disease. We investigated interactions between dietary ingredients, nutrients, and the microbiota in specific pathogen-free (SPF) and germ-free (GF) mice given more than 40 unique diets; we quantified individual and synergistic effects of dietary macronutrients and the microbiota on intestinal health and development of colitis...
November 23, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29173524/fecal-transplant-in-inflammatory-bowel-disease
#19
REVIEW
Alexander S Browne, Colleen R Kelly
Patients with inflammatory bowel disease (IBD) have differences in their gastrointestinal microbiome compared with healthy individuals, although it is unclear whether this is a cause or consequence of chronic inflammation. There is hope that manipulation of the gut microbiome through fecal microbiota transplant (FMT), commonly used to treat patients with Clostridium difficile infection, may also be an effective therapy in IBD. This article reviews the evidence supporting FMT in IBD, including case reports, case series, and randomized controlled trials...
December 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/29173521/prebiotics-and-inflammatory-bowel-disease
#20
REVIEW
Heather E Rasmussen, Bruce R Hamaker
Dietary fiber, specifically prebiotics, is the primary source of energy for the gut microbiota and thus has the potential to beneficially modify microbiota composition. Prebiotics have been used in both in vitro studies and with animal models of colitis with largely positive results. Human studies are few and have been conducted with only a few select prebiotics, primarily fructan-containing fibers. Although disease activity and inflammatory markers have improved, more needs to be learned about the specific prebiotic compounds and how they can be used to best improve the gut microbiota to counter changes induced by inflammatory bowel disease...
December 2017: Gastroenterology Clinics of North America
keyword
keyword
106816
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"