
Lipid Mediators in Colonic Biopsies as Biomarkers of Disease Activity of Inflammatory Bowel Diseases...
Inflammatory Bowel DiseasesColitis2 moreWe will quantify one of the lipid compounds (5,6 epoxy eicosatrienoic acid (5,6 EET), 5,6- EpoxyEicosaTrienoic acid) in colonic biopsies of Inflammatory Bowel Disease patients. We will evaluate its possible use as a pathological activity biomarker and its potential as a therapeutic target. We hypothesized that 5,6-EET is present in human colonic tissues in varying quantities depending on the pathological state of the IBD patient.

The Pediatric Intermed: A New Clinical Decision Making Tool
Inflammatory Bowel DiseaseThe investigators have recently developed a paediatric adaptation of the INTERMED tool to address the unique developmental and social contexts of children and youth. The Pediatric INTERMED adopts a life-chart methodology to structure and organize complex case material in time, colour-coding domains to facilitate identification of areas of high need and risk for each patient. The focus of the present study is to examine the characteristics and usefulness of the tool in identifying psychosocial stress in children/youth diagnosed with Inflammatory Bowel Disease (IBD), as well as identifying overall case complexity. Children and parents will participate in a semi-structured structured interview with a clinical nurse who will then rate the 34-PIM items. To examine the construct validity of each of the Pediatric INTERMED domains (biological, psychological, social, caregiver/family, health care system) participants will complete questionnaires assessing social and psychological functioning, parent and family stress, quality of life and adaptive functioning. Information about disease status, and health care utilization will be obtained from medical chart review. It is hypothesized that greater case complexity will be predictive of more complex disease course/treatment, poorer quality of life, and increased health care utilization.

Predictors of Mucosal Healing in Inflammatory Bowel Disease (IBD) Patients Treated With Anti-TNF...
Inflammatory Bowel DiseaseThe aim of this study is to prospectively identify, at diagnosis of the disease, factors predictive of mucosal healing in patients with inflammatory bowel disease treated with anti-TNF.

Cognition and Emotion in the SII and IBD
Irritable Bowel SyndromeInflammatory Bowel Disease (IBD)2 moreThe study aims at showing that the susceptibility in the stress is more raised at the person affected digestive pathologies (SII or IBD) in forgiveness than healthy subjects.

Mucosal Gene Expression Defects in IBD
Inflammatory Bowel DiseasesThis study investigated the mucosal gene expression defects associated with active Crohn's disease (CD)and ulcerative colitis (UC), and studied the effect of infliximab induced downregulation of inflammation and mucosal healing on these abnormalities, using whole genome gene expression microarrays.

Evaluation of Urinary Isoprostanes in the Assessment of Children With Inflammatory Bowel Disease...
Inflammatory Bowel DiseaseUlcerative Colitis1 moreIsoprostanes are compounds that are produced as a result of oxidative damage to cell membranes. Elevated tissue, serum, and urinary isoprostane levels have been described in a number of inflammatory diseases. The goal of this study is to determine utility of measuring urinary isoprostane levels in pediatric patients with inflammatory and non-inflammatory gastrointestinal disease. Urine samples will be collected from pediatric patients undergoing procedures in the Children's Hospital endoscopy unit. Clinical disease activity will be assessed using a standardized clinical disease activityiIndex. Gross endoscopic and histologic findings will be graded. Previously obtained laboratory studies will also be recorded. Urinary Isoprostane levels will be determined using a commercially available assay. Isoprostane levels will be compared across conditions (IBD vs. non-inflammatory, Crohn's disease vs. ulcerative colitis) and tested for statistical significance. Similarly, disease severity and urinary isoprostane levels will be assessed. The sensitivity, specificity, and positive and negative predictive values of elevated urinary isoprostane levels at discriminating pediatric patients with inflammatory and non-inflammatory gastrointestinal disease will be calculated.

National Multicentric Observatory of Low Bowel Preparations in Patients With IBD
Patient With an Indication of Colonoscopy for Inflammatory Bowel DiseaseNational multicentric observatory of low bowel preparations in patients with IBD

Circadian Rhythms in Patients With IBD or Celiac Disease Upon Diagnosis and Medical Follow-up
Inflammatory Bowel DiseasesCircadian Dysregulationpatients 6-25 years old upon diagnostic evaluation will be recruited . study population will comprise of two groups: newly diagnosed IBD patients/ Celiac disease and healthy controls. upon enrollment, subjects will fill out sleeping habits questioners, demographic data, medical history. blood samples will be drawn for CRP and clock gene expression in systemic WBC. intestinal biopsies will be snap frozen for clock gene extraction and amplification only for patients with IBD.

Immunogenicity of Influenza, Pneumococcal and Hepatitis B Vaccines in IBD Patients Treated With...
Inflammatory Bowel DiseasesPatients with Crohn's disease (CD) and ulcerative colitis (UC) are often treated with medications that suppress the immune system. These patients are therefore at increased risk for developing infections, such as influenza, pneumonia, and hepatitis B, which may be prevented by vaccination. While awareness is increasing among gastroenterologists of the importance of vaccinations in the IBD patient, there continues to be some question of the effectiveness of vaccination in immunosuppressed patients. It has been previously shown that patients on immunosuppressive therapy with certain biologic medications (the TNF-blockers: infliximab and adalimumab) had an impaired immune response to vaccination as compared to healthy controls, as the mechanism of immunosuppression for these agents is systemic. Vedolizumab, a biologic medication for CD and UC approved in May 2014, targets the α4β7 integrin, a key component of gut immunity, and as such it has been hypothesized that with this agent effects are gut specific. There is limited data that suggests that in healthy patients given vedolizumab do not have an altered response to parentally administered vaccines, however there are no studies in the CD and UC population describing this. Additionally, IBD patients treated with vedolizumab are frequently also on concomitant therapy with an immunomodulator (6-mercaptopurine, azathioprine, or methotrexate), and these patients ability to mount an immune response has not been demonstrated.

The IUSS Crohn's Study: A Feasibility Study
Crohn DiseaseInflammatory Bowel DiseasesThe aim of this study is to evaluate if an intraoperative protocol for Ultrasound scan (USS) is feasible and safe in patients undergoing elective surgery for ileocolic CD. The results of this study could guide the development of a larger randomised trial.