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Gluten Challenge in Celiac Disease
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.
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Gluten Challenge Study in Celiac Disease Participants (MK-0000-402)
This is a gluten challenge study to characterize peripheral blood and intestinal gluten specific cluster of differentiation 4 glycoprotein (CD4+) thymus lymphocyte (T cell) subsets in participants with Celiac Disease
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Gluten Free Diet in IBS
Patients with irritable bowel syndrome (IBS) often benefit from dietary changes. The effect of a gluten-free diet (GFD) on clinical symptom improvement and psychological well-being will be checked in patients with IBS. In addition, the stimulatory potential of gluten on peripheral blood monocytes will be determined. Responders will be provoked with gluten containing bars or placebo bars to confirm the diagnosis of non-celiac glutensenstitivity.
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Gynaecological Disorders in Not-celiac Wheat Sensitivity
In the last few years, a new clinical entity has emerged which includes patients who consider themselves to be suffering from problems caused by wheat and/or gluten ingestion, even though they do not have celiac disease (CD) or wheat allergy. This clinical condition has been named non-celiac gluten sensitivity (NCGS), although in a recent article, the investigators suggested the term "non-celiac wheat sensitivity" (NCWS), because it is not known to date what component of wheat actually causes the symptoms. The clinical picture of NCWS is characterized by combined gastrointestinal (bloating, abdominal pain, diarrhea and/or ...
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Imaging the Duodenum Using an Optical Frequency Domain Imaging OFDI Capsule
The study is being done to assess the tolerability and feasibility of a tethered OFDI capsule to image the duodenum. A total of 24 subjects will be asked to swallow the tethered capsule, while they are awake and unsedated and ask for their feedback. Images will be taken using the OFDI system while the capsule travels from the esophagus into the stomach and into the duodenum.
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Impact of a Low-FODMAP Gluten-free Diet on Gut Microbiota and Circulating miRNAs in Celiac Disease Patients
15 patients with refractory celiac disease (RCD) and 15 patients with CD responsive to the GFD between the ages of 21 and 60 will be enrolled. The aim of the research will be: 1) to characterize the intestinal, blood and duodenal microbiota, then to evaluate both the taxonomy of the identified bacteria and their relative abundance 2) to analyse the profile of miRNAs from biopsy and fibroblasts isolated in the first duodenal portion, highlighting any basal deregulation and, for fibroblasts, after treatment with the 33-mer immunogenic peptide 3) quantify and know the composition of the fecal microbiota in celiac patients with ...
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Improved Diagnostics of Celiac Disease in Children
The main purpose of this study is to improve the diagnostics of celiac disease and reduce the need for invasive endoscopic studies in children. Further, the investigators aim to investigate the natural history and risk of complications in children with celiac disease or gluten sensitivity and to create a large scientific database.
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Pathogenic Study of Adult Immune Enteropathies
The study focuses the mechanisms underlying the loss of intestinal homeostasis in celiac disease, refractory celiac disease and other immune diseases such as monogenic enteropathy, inflammatory bowel diseases or drug induced intestinal diseases. Mechanisms of transformation of lymphocytes leading to onset of lymphomatous complications of immune enteropathies will be investigated. Mechanisms of loss of hepatic lymphocytic homeostasis will also be assessed in liver associated diseases.
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Physical Fitness in Celiac Disease Patients - the Effect of a Gluten Free Diet
Evaluating the effect of Celiac disease (CD) and gluten free diet (GFD) on physical fitness parameters among CD subjects. The CD subjects will be compared to healthy controls.
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Population Study of the Prevalence of Celiac Disease and Other Gluten-dependent Disorders in Children and Adolescents
To study the prevalence and clinical features of celiac disease in children to develop new treatment approaches and rehabilitation strategies.
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