Coeliac Disease in the Nord-Trøndelag Health Study (HUNT)
In this study, all citizen of Nord-Trøndelag County, Norway, above 18 years of age are invited to participate in a population-based health study, the HUNT study. Blood samples are drawn from the participants and assessed for celiac disease by a serological assay. Celiac disease is a chronic inflammatory disease of the small intestine due to dietary gluten in wheat, barley and rye. The diagnosis will be verified through endoscopic assessment and biopsies from the small intestinal mucosa. The aims of the study are 1) to establish the population-based prevalence of celiac disease; 2) to assess the consequences of the disease from patient...
Confirmatory Efficacy Trial of a Gluten-Free Diet in a Subgroup of Persons With Schizophrenia Who Have High Levels of IgG Anti-Gliadin Antibodies (AGA IG)
This study purpose is to conduct a confirmatory double-blind randomized controlled trial in an inpatient setting of the effects of a tightly controlled gluten-free diet (GFD) to improve negative symptoms in people with schizophrenia or schizoaffective disorder who have antibodies to gliadin (AGA IgG). As part of the project investigators will also confirm outcomes such as cognitive symptoms, changes in peripheral and central inflammation as well as gut/blood brain barrier permeability.
Diagnostic Significance of Positive EmA Antibodies in the Duodenal Culture Medium of Not-Celiac Wheat Sensitivity (NCWS)
The most frequent diseases caused by wheat ingestion are T cell-mediated disorders, i.e. celiac disease and immunoglobulin E (IgE)-mediated allergic reactions. However, besides celiac disease and wheat allergy, there are cases of gluten reactions in which neither autoimmune nor IgE-mediated allergic mechanisms are involved. These are generally defined as GS or Not-celiac wheat sensitivity (NCWS). Typically, NCWS diagnosis is made by exclusion, and an elimination diet and an "open challenge" (i.e., the monitored reintroduction of gluten-containing foods) are most often used to evaluate whether health improves or worsen with the elimination...
Differences in Preparation for Small Bowel Capsule Endoscopy
The introduction of video capsule endoscopy in 2000 has provided a convenient and minimally invasive imaging method for the whole small bowel. Capsule Endoscopy is used to investigate a number of conditions such as obscure gastrointestinal bleeding, iron deficiency anaemia, inflammatory bowel disease, celiac disease, small bowel tumors, and hereditary polyposis syndromes. However, Capsule Endoscopy capsules are not able to suction fluid or wash the intestine, thus making it susceptible to decreased visualization quality and diagnostic yield due to dark intestinal contents or air bubbles. In order to determine the best method for bowel...
Dose-finding Gluten Challenge Trial in Nonceliac Gluten-sensitivity
An emerging problem in clinical practice is how to manage the growing number of patients who experience symptoms related to the ingestion of gluten-containing foods gluten and in whom celiac disease has been ruled out. These patients most frequently report gastrointestinal symptoms such as diarrhea, abdominal discomfort or pain, bloating, flatulence, but also extraintestinal symptoms, including headache, lethargy, attention-deficit/hyperactivity disorder, ataxia, or recurrent oral ulceration. This heterogeneous syndrome, which has been reported to improve or even disappear after gluten withdrawal and to relapse after gluten challenge, is...
Effectiveness of PENTABIOCEL in Clinical and Laboratory Recovery of Children With Celiac Disease
Celiac disease (CD) is an inflammatory condition of the small intestine. Environmental and genetic factors are involved in the development of CD. Apart from environmental and genetic factors other factors may also be involved, such as alteration in intestinal microbiota. Probiotic supplementation has been shown to be able to determine the intestinal healing. Recently the use of a mixture of some specific bacterial strains has shown its effectiveness. In this study effectiveness of a probiotic "Pentabiocel" which is a mixture of five different bacterial strains will be evaluated in CD affected children (already on a gluten-free diet) through...
Effect of Acute and Sub-acute Administration of Gluten on Extra-intestinal and Gastrointestinal Symptoms in Patients With Non-coeliac Gluten Sensitivity
The investigators will investigate the effects of acute and sub-acute administration of gluten on mood, intestinal permeability, gastrointestinal symptoms, gut microbiota and cortisol levels in NCGS patients.
Effects of Different Bread Types in NCGS
Although wheat and gluten containing food products are generally considered to be healthy, a large number of individuals in the general population reduces or limits their intake and/or replaces wheat by other grains because of possible symptoms. This non-coeliac gluten/wheat sensitivity (NCGS/NCWS) is accompanied by a range of (extra-)intestinal complaints soon after consuming wheat or gluten, which improve after wheat/gluten withdrawal. Evidence for a biological mechanism and for the exact contributing compound is limited. Furthermore, the impact of grain type, bread processing and the resulting compositional changes in bread on ...
Effects of Home Gluten Immunogenic Peptide Testing on Children With Celiac Disease
This study aims to investigate how knowledge of gluten immunogenic peptide (GIP) levels in stool and urine affects subsequent adherence to a gluten-free diet. Half of the participants will receive results in real-time using a home device and the other half will store samples to be tested at the end of the 30 week study. Participants will also have a diet review with a dietitian at the beginning of the end of their study and be asked questions about their symptoms, gluten-free diet adherence and quality of life.
Efficacy of a Gluten-free Diet in Difficult to Manage Nephrotic Syndrome: Utility of Plasma Zonulin Levels as a Predictive Biomarker
Elevated plasma zonulin levels, which are supportive of a diagnosis of CD (celiac disease) in children with gastrointestinal symptoms, may indicate patients with difficult-to-manage NS who will benefit from initiation of a GFD (gluten free diet). This pilot study will determine whether high plasma zonulin levels can be used as a screening tool to identify patients with NS (nephrotic syndrome) who are likely to demonstrate a beneficial response to a GFD. It will provide important information about the feasibility of testing the efficacy of a GFD for this condition and assist in the design and sample size calculation for a definitive trial to test ...