Abstract:
BACKGROUND:Faecalibacterium prausnitzii comprises 2 phylogroups, whose abundance in healthy and diseased gut and in conjunction with Escherichia coli has not yet been studied. This work aims to determine the contribution of F. prausnitzii phylogroups I and II in intestinal disease and to assess their potential diagnostic usefulness as biomarkers for gut diseases. METHODS:Total F. prausnitzii, its phylogroups, and E. coli loads were determined by quantitative polymerase chain reaction targeting the 16S rRNA gene on biopsies from 31 healthy controls (H), 45 patients with Crohn's disease (CD), 25 patients with ulcerative colitis, 10 patients with irritable bowel syndrome, and 20 patients with colorectal cancer. Data were normalized to total bacterial counts and analyzed according to patients' disease location and clinical characteristics. RESULTS:Lower levels of both total F. prausnitzii and phylogroup I were found in subjects with CD, ulcerative colitis, and colorectal cancer (P < 0.001) compared with H subjects. Phylogroup I load was a better biomarker than total F. prausnitzii to discriminate subjects with gut disorders from H. Phylogroup II depletion was observed only in patients with CD (P < 0.001) and can be potentially applied to differentiate ulcerative pancolitis from colonic CD. No statistically significant correlation between E. coli and any of the 2 F. prausnitzii phylogroups was found in any group of patients or by inflammatory bowel disease location. Phylogroup I was lower in active patients with CD, whereas those CD with intestinal resection showed a reduction in phylogroup II. Treatments with mesalazine and immunosuppressants did not result in the recovery of F. prausnitzii phylogroups abundance. CONCLUSIONS:F. prausnitzii phylogroup I was depleted in CD, ulcerative colitis, and colorectal cancer, whereas phylogroup II was specifically reduced in CD. Quantification of F. prausnitzii phylogroups and E. coli may help to identify gut disorders and to classify inflammatory bowel disease location.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Lopez-Siles M,Martinez-Medina M,Surís-Valls R,Aldeguer X,Sabat-Mir M,Duncan SH,Flint HJ,Garcia-Gil LJdoi
10.1097/MIB.0000000000000590subject
Has Abstractpub_date
2016-01-01 00:00:00pages
28-41issue
1eissn
1078-0998issn
1536-4844journal_volume
22pub_type
杂志文章abstract:BACKGROUND:Inflammatory bowel disease (IBD) is proposed to result from a dysregulated mucosal immune response to the colonic flora in genetically susceptible individuals. Enterotoxigenic Bacteroides fragilis (ETBF), a molecular subclass of the common human commensal, B. fragilis, has been associated with IBD. This stud...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20265
更新日期:2007-12-01 00:00:00
abstract::Inflammatory bowel diseases are chronic intestinal inflammatory diseases thought to reflect a dysregulated immune response. Although antibody-based inhibition of tumor necrosis factor-α (TNF-α) has provided relief to many inflammatory bowel diseases patients, these therapies are either ineffective in a patient subset ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/01.MIB.0000442839.28664.75
更新日期:2014-04-01 00:00:00
abstract::Crohn's disease is associated with an excessive T helper (TH) type 1 inflammatory immune response. Reducing the influx of disease-associated CD4+ TH1 cells into the inflamed intestine is likely to be beneficial in preventing a disease flare-up and even possibly in reducing the effect of acute disease. Thiazolidenedion...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/01.mib.0000160770.94199.9b
更新日期:2005-03-01 00:00:00
abstract:Background:Vedolizumab, an α4β7 integrin monoclonal antibody inhibiting gut lymphocyte trafficking, is an effective treatment for ulcerative colitis (UC). We evaluated the optimal position of vedolizumab in the UC treatment paradigm. Methods:Using Markov modeling, we assessed multiple algorithms for the treatment of U...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izx045
更新日期:2018-01-18 00:00:00
abstract:BACKGROUND:TGFβ is a multifunctional cytokine that is critical in regulating mucosal immunity. Murine studies have revealed that disruption of canonical TGFβ signaling leads to systemic inflammation including colitis. Loeys-Dietz syndrome (LDS) results from heterozygous mutations in the genes encoding the subunits of t...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000872
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) and endometriosis are immune-mediated chronic inflammatory disorders affecting young women. The clinical significance of concomitant endometriosis on the course of IBD has not been previously studied. The aim of this study was to determine whether women with concomitant endom...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000577
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Mucosal healing in ulcerative colitis leads to a decreased need for medication and decreased risk of disease relapse and colectomy. Histological healing seems to improve the disease prognosis even further. An assessment of both endoscopic and histological mucosal healing requires endoscopy, and the need for ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000736
更新日期:2016-05-01 00:00:00
abstract::Crohn's disease (CD) may affect any part of the gastrointestinal tract. When isolated to the colon, and patients become medically refractory, there are several surgical options - segmental resection, subtotal colectomy with ileorectal anastomosis, or a total proctocolectomy and end ileostomy. Unfortunately, surgery do...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1093/ibd/izx064
更新日期:2018-02-15 00:00:00
abstract:INTRODUCTION:No study to date has evaluated perinuclear antineutrophil cytoplasmic antibody (pANCA) and anti-Saccharomyces cerevisiae antibody (ASCA) in pediatric inflammatory bowel disease-unclassified (IBDU) as compared with Crohn's colitis (CC) and ulcerative colitis (UC), which represent the diagnostic challenge. W...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1097/MIB.0000000000000784
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Increased lymphatic vessel (LV) density has been found in uninflamed intestinal wall of patients with Crohn's disease (CD). The goal of the study was to search for an association between LV density in the proximal ileal resection margin at the time of surgery and endoscopic recurrence. METHODS:Ileocolonic r...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e3182971cec
更新日期:2013-09-01 00:00:00
abstract::The risk of colorectal cancer in patients with long-standing ulcerative colitis or colonic Crohn's disease is increased. Patients with long-standing ulcerative colitis are offered enrollment into programs of endoscopic surveillance. Although direct evidence for a protective effect of surveillance against death from co...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0b013e3182802c6a
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:The incidence of very early onset inflammatory bowel disease (VEOIBD) is increasing, yet the phenotype and natural history of VEOIBD are not well described. METHODS:We performed a retrospective cohort study of patients diagnosed with VEOIBD (6 years of age and younger) between 2008 and 2013 at 25 North Amer...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa080
更新日期:2020-05-09 00:00:00
abstract:Background:Clinical trials investigating the use of cannabinoid drugs for the treatment of intestinal inflammation are anticipated secondary to preclinical literature demonstrating efficacy in reducing inflammation. Methods:We systematically reviewed publications on the benefit of drugs targeting the endo-cannabinoid ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析
doi:10.1093/ibd/izy014
更新日期:2018-03-19 00:00:00
abstract:BACKGROUND:Systems biology is a rapidly advancing field of science that allows us to look into disease mechanisms, patient diagnosis and stratification, and drug development in a completely new light. It is based on the utilization of unbiased computational systems free of the traditional experimental approaches based ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa343
更新日期:2021-01-13 00:00:00
abstract::It is estimated that over one million people are living with inflammatory bowel disease (IBD) in the United States and that 20-25% of those are children. Pediatric IBD presents with more severe and extensive disease when compared to adults. As with all pediatric chronic illnesses, the patient as well as their parents ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000733
更新日期:2016-05-01 00:00:00
abstract::Corticosteroids, and more recently biologics, have been the mainstay of therapy for patients with inflammatory bowel disease. Unfortunately, both are fraught with side effects and limited by lack of efficacy or loss of response. Many patients ultimately succumb to medically refractory disease and require an operation....
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1093/ibd/izy084
更新日期:2018-07-12 00:00:00
abstract:BACKGROUND:Clinical observations or animal studies implicate enteric glial cells in motility disorders, irritable bowel syndrome, inflammatory bowel disease, gastrointestinal (GI) infections, postoperative ileus, and slow transit constipation. Mechanisms underlying glial responses to inflammation in human GI tract are ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000854
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Optimal levels of adalimumab (ADA) have not been defined according to the ultimate goal of inflammatory bowel disease treatment--histologic and/or endoscopic healing. The aim of this study was to assess the relationship between random serum ADA levels and histologic and endoscopic healing in patients with in...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000689
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:Individuals with ulcerative colitis are at high risk of developing colitis-associated cancer. 5-Aminosalicylate (5-ASA) protects from cancer by its antiinflammatory activity as well as by altering cell growth, inducing apoptosis, and reducing replication errors. So far neither 5-ASA's structural specificity ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21112
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:We aimed to determine the prevalence of adverse childhood experiences (ACEs) in persons with inflammatory bowel disease (IBD) and whether having ACEs was associated with health care utilization post-IBD diagnosis. METHOD:Three hundred forty-five participants from the population-based Manitoba IBD Cohort Stu...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz054
更新日期:2019-09-18 00:00:00
abstract::This review examines preclinical and clinical studies relevant to our understanding of how the bidirectional gut-brain axis influences the natural history of inflammatory bowel disease. Preclinical studies provide proof of concept that preexisting behavioral illness, such as depression, results in increased susceptibi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa004
更新日期:2020-03-04 00:00:00
abstract::The role of endoscopy in inflammatory bowel disease (IBD) has grown over the last decade in both diagnostic and therapeutic realms. It aids in the initial diagnosis of the disease and also in the assessment of the extent and severity of disease. IBD is associated with development of multiple complications such as stri...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000000626
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND:Pharmacologic inhibition or genetic ablation of phosphoinositide 3-kinase gamma (PI3Kγ) has been shown to be protective against experimental colitis. However, the role of PI3Kγ in the resolution phase of colitis remains unexplored. In this study, we assess the effects of genetic knockout of PI3Kγ on the indu...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e31827feb84
更新日期:2013-03-01 00:00:00
abstract:SUMMARY:: Crohn's disease of the terminal ileum usually recurs after an ileocolonic resection. To compare the length and the disease behavior of recurrent ileitis with the presurgical disease characteristics, we studied 31 consecutive patients who had recurrent Crohn's disease symptoms and who had undergone an ileoceca...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::An interleukin (IL)-10 family cytokine, IL-22 is characterized by several unique biological properties, including 1) the target restricted to innate cells; 2) the distinct expression pattern between large and small intestines; 3) alteration of the cellular source depending on several factors; 4) the dual abilities to ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.22929
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Thiopurines are effective drugs in treating ulcerative colitis (UC) and Crohn's disease (CD) even if studies that specifically investigate these drugs' profile of efficacy in UC compared with CD are scarce. Our aim was to compare the profile of efficacy of thiopurines in patients with UC and CD. METHODS:We ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000538
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Minimally invasive surgery for Crohn's ileocolitis is well established but few data exist regarding laparoscopic techniques for Crohn's colitis. We aimed to describe outcomes associated with minimally invasive surgery for Crohn's colitis, including predictors of conversion to laparotomy and postoperative com...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21265
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Vitamin A is an important regulator of the human immune system, especially in the gut. Recent studies have revealed that retinoic acid (RA) in gut-associated dendritic cells (DCs) enhances the transforming growth factor (TGF)-beta-dependent conversion of naïve T cells into regulatory T (Treg) cells. Thus, RA...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20934
更新日期:2009-10-01 00:00:00
abstract:Background:The differentiation between intestinal tuberculosis (ITB) and Crohn's disease (CD) is a challenge. The aim of this study was to investigate a predictive model for differential diagnosis between ITB and CD. Methods:A total of 268 patients who were suspected of having ITB or CD were prospectively recruited be...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy154
更新日期:2018-10-12 00:00:00
abstract::Presenting symptoms and their duration may affect the time that elapses prior to definitive diagnosis of inflammatory bowel disease (IBD). This study was undertaken to determine the mean duration of presenting symptoms and diagnostic lag in children with IBD. The medical records of all patients less than 19 years of a...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-199908000-00002
更新日期:1999-08-01 00:00:00