Abstract:
BACKGROUND:Iron is an important nutrient for both the host and colonizing bacteria. Oral iron supplementation may impact the composition of the microbiota and can be particularly damaging to patients suffering from inflammatory bowel disease (IBD). However, patients with IBD may require iron supplementation to treat their anemia. METHODS:We fed mice with diets supplemented with ferrous sulfate at different doses (5, 50, and 500 mg of iron/kg chow) and with different iron formulations (ferrous sulfate, ferrous bisglycinate and ferric ethylenediaminetetraacetic acid [FEDTA]), and analyzed the effects on the composition of the gut microbiota by 16S ribosomal RNA gene sequencing. Using the dextran sodium sulfate (DSS)-induced colitis mouse model, we investigated the effects of iron supplementation in colitis severity, as well as the use of the probiotic Escherichia coli Nissle 1917 (EcN) in combination with iron supplementation. RESULTS:Iron supplementation at different doses induced shifts in the gut microbial communities and inferred metabolic pathways. However, depending on the iron formulation used in the diets, iron supplementation during dextran sodium sulfate-induced colitis was either beneficial (ferrous bisglycinate) or highly detrimental (FEDTA). Finally, the beneficial effect of the probiotic EcN in the dextran sodium sulfate-induced colitis model was potentiated by oral iron supplementation with ferrous sulfate. CONCLUSIONS:These results show that the iron formulations used to treat iron deficiency influence the gut microbiota and colitis in mice and suggest that distinct iron compounds may be of particular relevance to patients with IBD. In addition, the beneficial action of probiotics in IBD may be enhanced by oral iron supplementation.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Constante M,Fragoso G,Lupien-Meilleur J,Calvé A,Santos MMdoi
10.1097/MIB.0000000000001089subject
Has Abstractpub_date
2017-05-01 00:00:00pages
753-766issue
5eissn
1078-0998issn
1536-4844journal_volume
23pub_type
杂志文章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:BACKGROUND:Inflammatory bowel disease is a chronic inflammatory disorder of the gastrointestinal tract that significantly impacts the health-related quality of life (HR-QOL). A decreased HR-QOL has been demonstrated in patients with active disease compared with patients in remission. In this cross-sectional study, we e...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318281f395
更新日期:2013-07-01 00:00:00
abstract::Natural killer T (NKT) cells are a subset of lymphocytes that express cell surface molecules of both conventional T cells and natural killer cells and share the features of both innate and adaptive immune cells. NKT cells have been proposed to make both protective and pathogenic contributions to inflammatory bowel dis...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.20164
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:This study examines the resources utilization in patients with Crohn's disease (CD) during the year before (Y - 1) and after (Y + 1) starting treatment with adalimumab and the drug's efficiency. METHODS:Observational, multicenter, prospective cohort study of patients with CD naive to biological drugs. The p...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究
doi:10.1097/MIB.0000000000000413
更新日期:2015-07-01 00:00:00
abstract::The last 12 months have seen unprecedented progress in identifying the susceptibility genes that predispose to common disease in general and Crohn's disease in particular. Success has derived from the new technique of genome-wide association scanning in large panels of cases and controls. This has itself been made pos...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.20239
更新日期:2007-12-01 00:00:00
abstract::: Primary nonresponse and primary nonremission are important limitations of tumor necrosis factor (TNF) antagonists, occurring in 10% to 40% and 50% to 80% of patients with inflammatory bowel disease, respectively. The magnitude of primary nonresponse differs between phase III clinical trials and cohort studies, indic...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000202
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Wiskott-Aldrich syndrome protein-deficient patients and mice are immunodeficient and can develop inflammatory bowel disease. The intestinal microbiome is critical to the development of colitis in most animal models, in which Helicobacter spp. have been implicated in disease pathogenesis. We sought to determi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318295fd8f
更新日期:2013-09-01 00:00:00
abstract::Stigma in patients suffering from chronic disease is associated with worse clinical outcomes and secondary medical issues such as depression, anxiety, and decreased quality of life. We believe various forms of stigma can have different clinical significance in patients with inflammatory bowel disease (IBD). With furth...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz260
更新日期:2020-06-18 00:00:00
abstract::MicroRNAs (miRNAs) are single-stranded RNA molecules, which influence the translation of messenger RNA and hence protein synthesis. The altered expression of miRNAs in disease states in cancer and autoimmune diseases including inflammatory bowel disease is providing new insights into disease pathogenesis. This underst...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000000288
更新日期:2015-05-01 00:00:00
abstract:Background:Tumor necrosis factor alpha (TNF-α) inhibitors are linked with increased risk of reactivation of active tuberculosis. The QuantiFERON-TB Gold In-Tube test is approved for screening latent tuberculosis infection in children and adults. There are limited data on the test performance in children on long-term tr...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izx077
更新日期:2018-03-19 00:00:00
abstract::Restorative proctocolectomy (RPC) with ileal pouch-anal anastomosis is the surgical procedure of choice for patients with ulcerative colitis (UC). It is also performed in selected patients with familial adenomatous polyposis (FAP). A significant proportion of patients will develop pouch dysfunction. Flexible pouchosco...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,实务指引,评审
doi:10.1002/ibd.20874
更新日期:2009-08-01 00:00:00
abstract:BACKGROUND:We analyzed inflamed mucosal/submucosal layers of ulcerative colitis (UC = 63) and Crohn's colitis (CC = 50), and unexpectedly, we unveiled a pool of free hemoglobin alpha (Hb-α) chain. Patients with colitides have increased reactive oxidative stress (ROS), DNA oxidation products, free iron in mucosa, in pre...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000144
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:The clinical course of ulcerative colitis (UC) is unpredictable. During recent years, the ability of fecal biomarkers to predict relapse in inflammatory bowel disease has been evaluated. The objective of this study was to assess fecal calprotectin (FC) as a predictor of disease recurrence in patients with ne...
journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章
doi:10.1097/MIB.0b013e31827e78be
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Various physician- and patient-reported instruments exist for quantification of disease activity in inflammatory bowel diseases (IBD) but none are widely used in routine clinical practice. A simple patient-reported outcome measure might help inform clinical decision making. We evaluated a patient-reported 0 ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000803
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND AND AIMS:Poor sleep quality in Crohn's disease (CD) is associated with histologic activity and clinical relapse. We sought to characterize sleep dysfunction and determine the effect of poor sleep quality on risk for hospitalization and surgery. METHODS:Clinical data were collected for CD subjects including ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz258
更新日期:2020-07-17 00:00:00
abstract:BACKGROUND:L-arginine (L-Arg) is the substrate for both inducible nitric oxide (NO) synthase (NOS2) and arginase (ARG) enzymes. L-Arg is actively transported into cells by means of cationic amino acid transporter (SLC7) proteins. We have linked L-Arg and arginase 1 activity to epithelial restitution. Our aim was to det...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000790
更新日期:2016-08-01 00:00:00
abstract::The aim of this study was to describe the clinical course of Crohn's disease (CD) in a well-defined, homogeneous groups of patients. A total of 480 patients with CD were followed up from diagnosis up to 20 years. Definitions of patient subgroups were made according to the Vienna Classification. Markov chain analysis w...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200111000-00005
更新日期:2001-11-01 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:Long-term enteral nutrition may maintain clinical and endoscopic remission in patients with Crohn's disease (CD). The aim of this prospective study was to investigate the impacts of long-term enteral nutrition on clinical and endoscopic disease activities and mucosal tissue cytokines in patients with quiesce...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20238
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:Vitamin D (25(OH)D) deficiency occurs in active Crohn's disease (CD) and may be secondary to reduced sunlight exposure and oral intake. Vitamin D-binding protein (VDBP) levels, however, fluctuate less with season and sunlight. The aim, therefore, was to examine patients with CD in remission and determine any...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000894
更新日期:2016-10-01 00:00:00
abstract:BACKGROUND:Advanced oxidation protein products (AOPPs) are new protein markers of oxidative stress with pro-inflammatory properties, accumulated in many pathological conditions. The issue of their enhanced formation in IBD has not been addressed yet. METHODS:The concentration of relative AOPPs (rAOPP; concentration of...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20383
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND:Patients with inflammatory bowel disease (IBD) are more susceptible to mental health problems than the general population; however, temporal trends in psychiatric diagnoses' incidence or prevalence in the United States are lacking. We sought to identify these trends among patients with IBD using national Vet...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz280
更新日期:2020-08-20 00:00:00
abstract:BACKGROUND:Mesenchymal stem cells (MSCs) have demonstrated significant potentials for the treatment of inflammatory bowel disease. Clinical feasible methods to individually document the MSC recruitment to intestinal mucosa is lacking. Here, we proposed that endomicroscopy could noninvasively track MSCs in vivo at cellu...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000458
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Several studies suggest an increased risk of venous and arterial thromboembolism (TE) in adults with inflammatory bowel disease (IBD) compared to the general population. We performed a systematic review of studies on incidence and characteristic of TE in children with IBD. METHODS:We searched Medline, LILAC...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.21563
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:There is a recognized association between pediatric inflammatory bowel disease (IBD) and cerebral thromboembolic events (CTEs). Historical reporting had described the association as strongest between ulcerative colitis (UC), rather than Crohn's disease (CD). We describe the incidence and outcome of CTE in pe...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21113
更新日期:2010-04-01 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:There is limited contemporary population-based evidence on adverse birth outcomes and pregnancy-related complications for women with inflammatory bowel disease (IBD). This study provides such estimates of these risks and assesses variation by IBD type and surgical interventions. METHODS:We calculated the pr...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000802
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) has a remitting and relapsing disease course; however, relatively little is understood regarding how inflammatory damage in acute colitis influences the microbiota, epithelial barrier, and immune function in subsequent colitis. METHODS:Mice were administered trinitrobenzene ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz011
更新日期:2019-06-18 00:00:00
abstract:BACKGROUND:The optimal management of Clostridium difficile infection (CDI) in flaring inflammatory bowel disease (IBD) patients has not been defined. Limited data suggest that coadministration of immunomodulators (IM) with antibiotics (AB) results in a worse outcome. We investigated the prevalent practice among North A...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21514
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel diseases (IBDs) are chronic illnesses that require frequent and regular healthcare contact. Regular maintenance care may reduce complications or the need for hospitalization. Availability of physicians may be an important determinant of IBD hospitalizations. METHODS:Using 2008 inpatient d...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21357
更新日期:2011-02-01 00:00:00