View clinical trials related to Celiac Disease.
Filter by:Celiac disease is one of the most common forms of food intolerance (prevalence 1/200). The disease occurs in genetically predisposed individuals after ingestion of foods containing gluten. Celiac patients can suffer from severe malabsorption syndrome, mainly characterized by diarrhea and weight loss. The only therapeutic approach currently recognized is a life-long gluten-free diet. Specific regions of gluten molecule become recognizable by lymphocytes and activate them, due to changes made by tissue transglutaminase. These changes consist in the conversion of specific residues of glutamine into glutamic acid. The consequence is an increased binding affinity between gluten and histocompatibility molecule (HLA-DQ2), localized on the surface of the "antigen presenting cells" (APC); the exposure of the fragments of modified gluten on the surface of APC is a phenomenon that eventually activates T lymphocytes. Recent studies on modified gluten confirmed the hypothesis that it is possible to block the presentation of gluten to lymphocytes by means of lysine ethyl ester binding exclusively to those gluten regions responsible for lymphocyte activation. The enzymatic treatment is performed directly on flour instead of extracted gluten, maintaining the same anti-inflammatory effectiveness. The procedure uses a food-grade enzyme, the microbial transglutaminase (mTGasi) isolated from Streptoverticillium mobarensis, able to catalyze the formation of intermolecular "cross-links" that modify the functional properties of the products. Objective of the study is to validate the ability of the enzyme treatment of wheat flour with mTGasi and lysine ethyl ester to block the toxic effect of gluten in celiac patients.
Up till 30 participants with celiac disease on a glutenfree diet are asked to consume gluten containing cookies or bread for 3 days. Questionnaires and sampling of blood is done before, during and after.
This is a prospective randomized controlled trial investigating the impact of educational bidirectional text message reminders on gluten free diet adherence among adolescents and young adults with celiac disease age 12-24. Participants will complete a series of online questionnaires assessing quality of life, patient activation, celiac symptoms, and self reported dietary adherence at the beginning and end of the study. Participants will also have their blood drawn to measure Tissue Transglutaminase IgA (TTG IgA) antibody and Deamidated Gliadin Peptide IgA (DGP IgA) at the beginning and end of the study. Lab draws can be done locally, and are at no cost to the participant. Patients are randomized to the intervention or control group based on enrollment TTG IgA. Intervention group receives 45 unique text messages over the 3 month study. A gift card is provided for participation in the study.
The purpose of this study is to estimate the prevalence of celiac disease in a population of men and women newly referred to fertility treatment in Danish public fertility clinics.
Persons with coeliac disease treated with a gluten free diet will be asked to give blood for a new diagnostic blood test. In this test investigators will use multimerized HLA bound to different gliadin-peptides (tetramer) and with the help of a flow-cytometer identify (along with other relevant T-cell-markers) gluten specific T-cells. Investigators believe that these cells will be present in persons with coeliac disease regardless of gluten-intake. Investigators will compare their findings with two control groups; Persons on a gluten free diet where celiac disease is excluded (gluten sensitive group) and persons on a gluten containing diet (healthy control group). In the initial and main study investigators will look at HLA DQ2.5 individuals, which comprise >90% of all persons with coeliac disease.
This is a clinical trial to evaluate the sensitivity of noninvasive, novel markers of gluten ingestion in celiac disease patients who are following gluten free diet for at least a period of one year. These noninvasive markers may be helpful to monitor the silent intestinal damage, possibly resulting from the accidental consumption of gluten due to cross contamination of gluten free diet.
The purpose of this study is to develope a novel method to determine gluten intake and to check gluten-free diet adherence in celiac patients by detection of gluten immunogenic peptides in urine.
Celiac disease (CD) is the most common chronic autoimmune enteropathy in Western Countries with an estimated prevalence ranging from 1:100 to 1:200. It is usually characterized by a benign course with clinical and histological remission, provided that a strict gluten-free diet (GFD) is followed by patients. Less frequently, CD can be characterized by a complicated course, when facing with a refractory disease (RCD) or with malignancies of the gastrointestinal (GI) tract, namely lymphoma and adenocarcinoma of the small bowel (SB). Different studies estimated a relative risk (RR) for neoplastic GI complications in CD ranging from 2 to 40 and from 10 to 60 for primary gut lymphoma and adenocarcinoma, respectively. Although uncommon, the discussed malignancies has a severe prognosis, reflecting the need for an early diagnosis. This project aims to establish an enteroscopic approach to improve the diagnostic timing and survival of CD patients at risk to develop SB tumors.
Celiac disease (CD) is a chronic autoimmune disorder in genetically susceptible individuals characterized by inflammation of the small intestine due to gluten intolerance. This protein is found in cereals such as wheat, barley and rye. In Argentina, oats are also considered a toxic grain since are as highly contaminated as the previous three. For this reason, the acronym TACC (Trigo, avena, cebada y centono: wheat, oats, barley and centono) is used for their identification. An effective treatment for celiac disease consists in a gluten-free diet (GFD). For most patients, a gluten-free intake results in a symptomatic and pathological complete remission and decreases the risk of complications. The overall prevalence of CD is around 1% in several Western countries. An Argentinian study shows a 1.167 prevalence of CD in studied patients, being doubled for women than men. Another study in a closed population of the Health Plan of Hospital Italiano de Bs As estimated a prevalence of 0.22 CD diagnosis. In developed countries, for each diagnosed case there is an average of 5-10 cases that have not been diagnosed yet. CD patients and their families should be properly informed about GFD, since there are many factors, voluntary and involuntary, which can affect the treatment. Even though a strict diet is imperative, food handling awareness is equally important in order to prevent cross-contamination and gluten intake hidden in certain products. In recent years, several countries have shown an increasing interest in improving the supply of gluten-free foods in supermarkets, food factories and restaurants. In turn, a British study shows that chefs have less awareness about celiac disease than the overall population. Another Canadian study, which assessed the quality of life of people with CD, revealed that 80% of them avoid eating in restaurants for fear of contamination, causing a decrease in their social life. In Argentina, there are associations that generate lists of marks and gluten-free products allowing safe intake of processed foods, however, it is unknown the food supply suitable for consumption for people with CD as well as the staff's knowledge in gluten-free food preparation in restaurants, pubs, pizzerias and fast food places. U.S. has quality assurance systems that certify good manufacturing practices and GFD handling in restaurants and selling local foods, although its application is not mandatory. In our country, there is no such certification, so food safety on restaurants can not be guaranteed. Eating behaviors are influenced by the reality in which people live, including food availability indoors and outdoors. The current lifestyle leads more and more people to make meals away from home, so that the variety and quality of food sold in restaurants and other stores conditions the consumption. Thus, the availability of "safe" foods in places where people with CD carried some of their meals, help improve adherence to the GFD. The aim of this study is to investigate gluten-free products' supply in elaborated food stores in Buenos Aires City and to discover the level of information possessed by manufacturers in the production of food.
Celiac disease (CD) is an immune-mediated systemic disease that is elicited by consumption of gluten and related prolamines in genetically susceptible individuals. Not only genetic but also environmental factors play an important role in CD pathogenesis. CD patients have imbalance in the gut microbiota, they have reduced number of Bididobacterium species in feces and biopsies. Up till now, only effective treatment for CD is life long adherence to gluten free diet. If gluten free diet is not strict that leads over the years to complications of disease, such as autoimmune diseases, psychiatric diseases, osteoporosis etc. That may be caused by continuous recirculation of activated immune cells between the inflamed organ and the periphery. To avoid complications of disease in long term the investigators want to test specific probiotic bacteria from Bifidobacteria genus, that has has been in vitro studies recognized as anti-inflammatory. Hypothesis 1. Children with celiac disease on gluten free diet have a higher level of pro-inflammatory cytokine (TNF-alpha) and anti-inflammatory cytokine (IL-10) in comparison with healthy controls. 2. 3 months after daily probiotic consumption TNF-alpha level decrease and IL-10 level increase. In the investigators research will be selected 70 children, age from 2 to 18 years, divided in different groups: 1. Group: 25 children with celiac disease on GFD for at least 3 months and will receive probiotic for 3 months. 2. Group: 25 children with celiac disease on GFD for at least 3 months and will receive placebo for 3 months. 3. Group: 20 healthy children