55,286 research outputs found
A case-control study of the effect of infant feeding on celiac disease
Aims: The aim of this study was to investigate the association between the duration of breast-feeding and the age at the first gluten introduction into the infant diet and the incidence and age at onset of celiac disease. Methods: In a case-control study, 143 children with celiac disease and 137 randomly recruited gender- and age-matched control children were administered a standardized questionnaire. Multivariate-adjusted odds ratios (OR) as estimates of the relative risk and corresponding 95% confidence intervals (95% CI) were calculated. Results: The risk of developing celiac disease decreased significantly by 63% for children breast-fed for more than 2 months (OR 0.37, 95% Cl 0.21-0.64) as compared with children breast-fed for 2 months or less. The age at first gluten introduction had no significant influence on the incidence of celiac disease (OR 0.72, 95% Cl 0.29-1.79 comparing first gluten introduction into infant diet >3 months vs. less than or equal to3 months). Conclusions: A significant protective effect on the incidence of celiac disease was suggested by the duration of breast-feeding (partial breastfeeding as well as exclusive breast-feeding). The data did not support an influence of the age at first dietary gluten exposure on the incidence of celiac disease. However, the age at first gluten exposure appeared to affect the age at onset of symptoms. Copyright (C) 2001 S. Karger AG, Basel
Haptoglobin Polymorphism: A Novel Genetic Risk Factor for Celiac Disease Development and Its Clinical Manifestations
Background: Haptoglobin (Hp) α-chain alleles 1 and 2 account for 3 phenotypes that may influence the course of inflammatory diseases via biologically important differences in their antioxidant, scavenging, and immunomodulatory properties. Hp1-1 genotype results in the production of small dimeric, Hp2-1 linear, and Hp2-2 cyclic polymeric haptoglobin molecules. We investigated the haptoglobin polymorphism in patients with celiac disease and its possible association to the presenting symptoms.
Methods: We studied 712 unrelated, biopsy-proven Hungarian celiac patients (357 children, 355 adults; severe malabsorption 32.9%, minor gastrointestinal symptoms 22.8%, iron deficiency anemia 9.4%, dermatitis herpetiformis 15.6%, silent disease 7.2%, other 12.1%) and 384 healthy subjects. We determined haptoglobin phenotypes by gel electrophoresis and assigned corresponding genotypes.
Results: Hp2-1 was associated with a significant risk for celiac disease (P = 0.0006, odds ratio [OR] 1.54, 95% CI 1.20–1.98; prevalence 56.9% in patients vs 46.1% in controls). It was also overrepresented among patients with mild symptoms (69.2%) or silent disease (72.5%). Hp2-2 was less frequent in patients than in controls (P = 0.0023), but patients having this phenotype were at an increased risk for severe malabsorption (OR 2.21, 95% CI 1.60–3.07) and accounted for 45.3% of all malabsorption cases. Celiac and dermatitis herpetiformis patients showed similar haptoglobin phenotype distributions.
Conclusions: The haptoglobin polymorphism is associated with susceptibility to celiac disease and its clinical presentations. The predominant genotype in the celiac population was Hp2-1, but Hp2-2 predisposed to a more severe clinical course. The phenotype-dependent effect of haptoglobin may result from the molecule’s structural and functional properties
Effects of Celiac Disease on Religion and Language
Celiac disease is an autoimmune disease that prevents people from digesting gluten. The diagnosis of Celiac impacts more than physical health, it irrevocably alters a person’s conception of self. Ordinary activities like airport travel, staying in hotels, and worship become complicated. For example, receiving Communion in the Roman Catholic faith is one of the ways people maintain their close relationship to God. Because the wafers used are made of gluten, those with Celiac are prevented from partaking in this sacred ritual. This leads to increased feelings of isolation and alienation from both the religious community and God. Another way it alters a person’s self-conception is by changing the very language they use. For instance, they might use new lingo such as the word “glutard.” A contraction of the words “gluten” and “retarded,” many use the term to inject humor into an often grim situation. It is an ironic term of self-reference used on social media when one has been exposed or is pointing out the dark humor that is often a part of life with Celiac disease. Those with Celiac disease often find these kinds of everyday experiences more problematic than those without, who often take these things for granted
Intestinal Barrier Function in Gluten-Related Disorders
Gluten-related disorders include distinct disease entities, namely celiac disease, wheat-associated allergy and non-celiac gluten/wheat sensitivity. Despite having in common the contact of the gastrointestinal mucosa with components of wheat and other cereals as a causative factor, these clinical entities have distinct pathophysiological pathways. In celiac disease, a T-cell mediate immune reaction triggered by gluten ingestion is central in the pathogenesis of the enteropathy, while wheat allergy develops as a rapid immunoglobulin E- or non-immunoglobulin E-mediated immune response. In non-celiac wheat sensitivity, classical adaptive immune responses are not involved. Instead, recent research has revealed that an innate immune response to a yet-to-be-defined antigen, as well as the gut microbiota, are pivotal in the development in this disorder. Although impairment of the epithelial barrier has been described in all three clinical conditions, its role as a potential pathogenetic co-factor, specifically in celiac disease and non-celiac wheat sensitivity, is still a matter of investigation. This article gives a short overview of the mucosal barrier of the small intestine, summarizes the aspects of barrier dysfunction observed in all three gluten-related disorders and reviews literature data in favor of a primary involvement of the epithelial barrier in the development of celiac disease and non-celiac wheat sensitivity
Celiac disease
Celiac disease is a chronic intestinal disease caused by intolerance to gluten. It is characterized by immune-mediated enteropathy, associated with maldigestion and malabsorption of most nutrients and vitamins. In predisposed individuals, the ingestion of gluten-containing food such as wheat and rye induces a flat jejunal mucosa with infiltration of lymphocytes. The main symptoms are: stomach pain, gas, and bloating, diarrhea, weight loss, anemia, edema, bone or joint pain. Prevalence for clinically overt celiac disease varies from 1:270 in Finland to 1:5000 in North America. Since celiac disease can be asymptomatic, most subjects are not diagnosed or they can present with atypical symptoms. Furthermore, severe inflammation of the small bowel can be present without any gastrointestinal symptoms. The diagnosis should be made early since celiac disease causes growth retardation in untreated children and atypical symptoms like infertility or neurological symptoms. Diagnosis requires endoscopy with jejunal biopsy. In addition, tissue-transglutaminase antibodies are important to confirm the diagnosis since there are other diseases which can mimic celiac disease. The exact cause of celiac disease is unknown but is thought to be primarily immune mediated (tissue-transglutaminase autoantigen); often the disease is inherited. Management consists in life long withdrawal of dietary gluten, which leads to significant clinical and histological improvement. However, complete normalization of histology can take years
Prevalence of celiac disease in patients with irritable bowel syndrome in Ardabil-Iran (2009-10)
Background and Objective: Irritable bowel syndrome (IBS) is the most prevalent gastrointestinal disorder and is one the common conditions seen by gastroenterologists in their daily practice. This study was done to determine the prevalence of celiac disease in patients with irritable bowel syndrome in Ardabil-Iran. Materials and Methods: This descriptive study was conducted on 105 patients with IBS whome referred to the gastroenterology unit in Ardabil-Iran during 2009-10. Serum IgA anti tTG were measured all patients with positive for antibodies against tTG were candidated for upper endoscopy and biopsy. Data were analyzed using SPSS-16, t-test, Chi-Square and Fisher’s exact tests. Results: The average age of IBS subjects were 31.4±10.14 years (range 16-63 years). Celiac disease was diagnosed in 14 subjects (13.5%). The celiac patient age were 22-55 years with mean of 34.93±9.47. Among celiac afflicted patients IBS type D and M observed among 10 and 4 patients, respectivley. Celiac affected female constituted 12 (85.7%) of all patients (P<0.05). 10 of these patients were IBS-D and 4 with IBS-M. From 14 celiac patient 4 (28.57%) were family related, but this rate among IBS patient was 3.3%, this difference was significant (P<0.05). Conclusion: This study showed that the prevalence of celiac in patients with IBS is found to be 13.5% which seem is more than ther studies in other parts of Iran
A case series in patients with enteropathy and granulomatous diseases
Background Although sarcoidosis and celiac disease are both chronic
immunologic disorders involving multiple organ systems, reports about
association of diseases in individual patients are sparse. While sarcoidosis
is a chronic granulomatous disease presumably reflecting an exaggerated
response to an unknown antigen, celiac disease is a T cell-driven disease
triggered by ingestion of gluten, a protein composite found in wheat and
related grains. Case presentation We present three cases with a longstanding
history of sarcoidosis that have been additionally diagnosed with celiac-like
enteropathy. In two cases, celiac disease was established applying celiac-
specific serology and duodenal histology, while one case was revealed as an
AIE-75-positive autoimmune enteropathy. The HLA-DR3/DQ2 haplotype was
confirmed in both celiac patients, hence confirming previous data of linkage
disequilibrium as a cause for disease association. Remarkably, one celiac
patient presented with granulomatous nodulae in the ileum, thus reflecting an
intestinal sarcoid manifestation. In contrast the patient with an autoimmune
enteropathy, was HLA-DQ9/DQ6-positive, also arguing against CD. Conclusions
Associations of sarcoidosis and celiac disease are rare but do occur.
Determining the HLA status in patients with complex autoimmune associations
might help classifying involved disease entities
Celiac Disease Monocytes Induce a Barrier Defect in Intestinal Epithelial Cells
Intestinal epithelial barrier function in celiac disease (CeD) patients is altered. However, the mechanism underlying this effect is not fully understood. The aim of the current study was to evaluate the role of monocytes in eliciting the epithelial barrier defect in CeD. For this purpose, human monocytes were isolated from peripheral blood mononuclear cells (PBMCs) from active and inactive CeD patients and healthy controls. PBMCs were sorted for expression of CD14 and co-cultured with intestinal epithelial cells (IECs, Caco2BBe). Barrier function, as well as tight junctional alterations, were determined. Monocytes were characterized by profiling of cytokines and surface marker expression. Transepithelial resistance was found to be decreased only in IECs that had been exposed to celiac monocytes. In line with this, tight junctional alterations were found by confocal laser scanning microscopy and Western blotting of ZO-1, occludin, and claudin-5. Analysis of cytokine concentrations in monocyte supernatants revealed higher expression of interleukin-6 and MCP-1 in celiac monocytes. However, surface marker expression, as analyzed by FACS analysis after immunostaining, did not reveal significant alterations in celiac monocytes. In conclusion, CeD peripheral monocytes reveal an intrinsically elevated pro-inflammatory cytokine pattern that is associated with the potential of peripheral monocytes to affect barrier function by altering TJ composition
Health related effects of wheat varieties
Summarises the different effects wheat digestion has on human healt
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