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Gluten sensitivity

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https://www.readbyqxmd.com/read/29146521/hla-dq-gluten-tetramer-blood-test-accurately-identifies-patients-with-and-without-celiac-disease-in-absence-of-gluten-consumption
#1
Vikas K Sarna, Knut E A Lundin, Lars Mørkrid, Shuo-Wang Qiao, Ludvig M Sollid, Asbjørn Christophersen
BACKGROUND & AIMS: Celiac disease is characterized by HLA-DQ2/8-restricted responses of CD4+ T cells to cereal gluten proteins. A diagnosis of celiac disease based on serologic and histologic evidence and duodenal histology requires patients to be on gluten-containing diets. The growing number of individuals adhering to a gluten-free diet (GFD) without exclusion of celiac disease complicates its detection. HLA-DQ-gluten tetramers can be used to detect gluten-specific T cells in blood of patients with celiac disease, even if they are on a GFD...
November 13, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29142467/non-celiac-gluten-sensitivity-all-wheat-attack-is-not-celiac
#2
REVIEW
Samuel O Igbinedion, Junaid Ansari, Anush Vasikaran, Felicity N Gavins, Paul Jordan, Moheb Boktor, Jonathan S Alexander
Currently, 1% of the United States population holds a diagnosis for celiac disease (CD), however, a more recently recognized and possibly related condition, "non-celiac gluten sensitivity" (NCGS) has been suggested to affect up to 6% of the United States public. While reliable clinical tests for CD exist, diagnosing individuals affected by NCGS is still complicated by the lack of reliable biomarkers and reliance upon a broad set of intestinal and extra intestinal symptoms possibly provoked by gluten. NCGS has been proposed to exhibit an innate immune response activated by gluten and several other wheat proteins...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29132967/unexplained-infertility-and-undiagnosed-celiac-disease-study-of-a-multiethnic-canadian-population
#3
Beth Gunn, Kellie E Murphy, Ellen M Greenblatt
OBJECTIVE: The aims of this study were to examine the prevalence of Celiac disease (CD) in Canadian women with unexplained infertility versus women with an identifiable cause of infertility and to assess the sensitivity of the point-of-care Biocard Celiac Test Kit versus standard serum serologic testing. METHODS: In this prospective cohort study, women aged 18 to 44 who were evaluated for infertility between February 2010 and May 2012 at a tertiary academic care fertility clinic in Toronto, ON, were invited to participate...
November 10, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29132529/celiac-disease-and-gluten-sensitivity
#4
REVIEW
Katharine C DeGeorge, Jeanetta W Frye, Kim M Stein, Lisa K Rollins, Daniel F McCarter
Celiac disease is an immune-mediated enteropathy triggered by gluten that affects genetically predisposed individuals, typically causing intestinal symptoms and malabsorption. Diagnosis requires stepwise evaluation with anti-tissue transglutaminase IgA and histologic analysis of the small bowel. Strict adherence to a gluten-free diet is the primary treatment. Patients with symptoms thought to be related to gluten but without evidence of celiac disease are difficult to diagnose and treat. Consider first advising general nutritional improvements...
December 2017: Primary Care
https://www.readbyqxmd.com/read/29131356/gluten-sensitivities-and-the-allergist-threshing-the-grain-from-the-husks
#5
REVIEW
J G Burkhardt, A Chapa-Rodriguez, S L Bahna
"Gluten sensitivity" has become commonplace among the public. Wheat allergy (WA) and celiac disease (CD) are well-defined entities, but are becoming a fraction of individuals following a gluten-free diet. WA has a prevalence of <0.5%. Wheat, specifically its omega-5 gliadin fraction, is the most common allergen implicated in food-dependent, exercise-induced anaphylaxis. CD is a non-IgE hypersensitivity to certain cereal proteins: gluten in wheat, secalin in rye, hordein in barley, and to a lesser extent avenin in oat...
November 13, 2017: Allergy
https://www.readbyqxmd.com/read/29118931/outcome-of-breath-tests-in-adult-patients-with-suspected-small-intestinal-bacterial-overgrowth
#6
Johanna Mattsson, Maria Teresa Minaya, Milka Monegro, Benjamin Lebwohl, Suzanne K Lewis, Peter Hr Green, Reidun Stenberg
Aim: The aim was to investigate breath test outcomes in patients with suspected SIBO and indicative symptoms of SIBO, diagnosed by breath testing. Background: Breath testing is used to detect small intestinal bacterial overgrowth (SIBO) by measuring hydrogen and methane produced by intestinal bacteria. Methods: This retrospective cross sectional study included 311 patients with gastrointestinal symptoms who underwent the breath test for evaluation of SIBO at Celiac Disease Center at Columbia University, New York, in 2014-2015...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/29102613/fructan-rather-than-gluten-induces-symptoms-in-patients-with-self-reported-non-celiac-gluten-sensitivity
#7
Gry I Skodje, Vikas K Sarna, Ingunn H Minelle, Kjersti L Rolfsen, Jane G Muir, Peter R Gibson, Marit B Veierød, Christine Henriksen, Knut E A Lundin
BACKGROUND & AIMS: Non-celiac gluten sensitivity is characterized by symptom improvement after gluten withdrawal in absence of celiac disease. The mechanisms of non-celiac gluten sensitivity are unclear, and there are no biomarkers for this disorder. Foods with gluten often contain fructans, a type of fermentable oligo-, di-, monosaccharides and polyols. We aimed to investigate the effect of gluten and fructans separately in individuals with self-reported gluten sensitivity. METHODS: We performed a double-blind crossover challenge of 59 individuals on a self-instituted gluten-free diet, for whom celiac disease had been excluded...
November 1, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29099090/a-new-proposal-for-the-pathogenic-mechanism-of-non-coeliac-non-allergic-gluten-wheat-sensitivity-piecing-together-the-puzzle-of-recent-scientific-evidence
#8
REVIEW
Valentina Leccioli, Mara Oliveri, Marcello Romeo, Massimiliano Berretta, Paola Rossi
Non-coeliac/non-allergic gluten/wheat sensitivity (NCG/WS) is a gluten-related disorder, the pathogenesis of which remains unclear. Recently, the involvement of an increased intestinal permeability has been recognized in the onset of this clinical condition. However, mechanisms through which it takes place are still unclear. In this review, we attempt to uncover these mechanisms by providing, for the first time, an integrated vision of recent scientific literature, resulting in a new hypothesis about the pathogenic mechanisms involved in NCG/WS...
November 2, 2017: Nutrients
https://www.readbyqxmd.com/read/29050807/the-relationship-between-gluten-free-diet-adherence-and-depressive-symptoms-in-adults-with-coeliac-disease-a-systematic-review-with-meta-analysis
#9
REVIEW
Kirby Sainsbury, Marta M Marques
PURPOSE: Depressive symptoms are common in patients with coeliac disease (CD) and may represent a barrier to gluten free diet (GFD) adherence. The aims of this meta-analysis were: (1) to synthesise the evidence on the relationship between depression or depressive symptoms and degree of adherence to a GFD in patients with CD who are already attempting a GFD (i.e., post-diagnosis and onset of GFD), and (2) to summarise the direction of causation of any observed relationship. METHODS: A random effects meta-analysis of 8 cross-sectional studies (N = 1644) was conducted...
January 1, 2018: Appetite
https://www.readbyqxmd.com/read/29026596/flow-cytometry-of-duodenal-intraepithelial-lymphocytes-improves-diagnosis-of-celiac-disease-in-difficult-cases
#10
Julio Valle, José Mario T Morgado, Juan Ruiz-Martín, Antonio Guardiola, Miriam Lopes-Nogueras, Almudena García-Vela, Beatriz Martín-Sacristán, Laura Sánchez-Muñoz
BACKGROUND: Diagnosis of celiac disease is difficult when the combined results of serology and histology are inconclusive. Studies using flow cytometry of intraepithelial lymphocytes (IELs) have found that celiac patients have increased numbers of γδ IELs, along with a decrease in CD3-CD103 + IELs. OBJECTIVE: The objective of this article is to assess the role of flow cytometric analysis of IELs in the diagnosis of celiac disease in difficult cases. METHODS: A total of 312 patients with suspicion of celiac disease were included in the study...
October 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29026170/randomized-clinical-trial-effective-gluten-degradation-by-aspergillus-niger-derived-enzyme-in-a-complex-meal-setting
#11
Julia König, Savanne Holster, Maaike J Bruins, Robert J Brummer
The Aspergillus niger-derived prolyl endoprotease (AN-PEP) has previously been shown to degrade gluten in healthy subjects when added to an intragastrically infused meal. The current study investigated the efficacy of AN-PEP in a physiological meal setting. In this randomized placebo-controlled crossover study, 18 gluten-sensitive subjects consumed a porridge containing 0.5 g gluten together with two tablets either containing a high or low dose of AN-PEP, or placebo. Gastric and duodenal content was sampled over 180 minutes, and areas under the curve of gluten concentrations were calculated...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29016564/the-role-of-an-iga-igg-deamidated-gliadin-peptide-point-of-care-test-in-predicting-persistent-villous-atrophy-in-patients-with-celiac-disease-on-a-gluten-free-diet
#12
Michelle S Lau, Peter D Mooney, William L White, Michael A Rees, Simon H Wong, Matthew Kurien, Nick Trott, Daniel A Leffler, Marios Hadjivassiliou, David S Sanders
OBJECTIVES: Mucosal healing is important in celiac disease (CD) for the prevention of complications. However, obtaining duodenal biopsies is invasive, and there is currently no reliable surrogate marker for histological remission in clinical practice. We aimed to assess the role of a point-of-care test (POCT) based on IgA/IgG-deamidated gliadin peptide, in detecting persistent villous atrophy (VA) in CD. METHODS: We prospectively recruited patients with CD attending endoscopy for the assessment of histological remission...
October 10, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28991835/celiac-disease-diagnosis-without-biopsy-is-a-10x-uln-anti-transglutaminase-result-suitable-for-a-chemiluminescence-method
#13
Giulia Previtali, Lisa Licini, Lorenzo D'Antiga, Antonio Marseglia, Rudi Ravasio, Francesca Nembrini, Salvatore Greco, Aurelio Sonzogni, Giovanna Azzarà, Paolo Ravelli, Maria Grazia Alessio
OBJECTIVES: 2012 ESPGHAN guidelines allow to establish a celiac disease (CD) diagnosis without duodenal biopsy in symptomatic pediatric patients with anti-tissue transglutaminase (anti-tTG) titers > 10 times the upper limit of normal (ULN). For some years now, new chemiluminescence immunoassays have been made available: it is important to establish the clinical performance of anti-tTG and to determine the cut-off best suited to predict Marsh ≥ 2 in order to avoid gastrointestinal endoscopy not only in children, but also in the adult population...
October 6, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28987135/non-coeliac-gluten-or-wheat-sensitivity-emerging-disease-or-misdiagnosis
#14
REVIEW
Michael DE Potter, Marjorie M Walker, Nicholas J Talley
Non-coeliac gluten or wheat sensitivity (NCG/WS) is a condition characterised by adverse gastrointestinal and/or extra-intestinal symptoms associated with the ingestion of gluten- or wheat-containing foods, in the absence of coeliac disease or wheat allergy. Up to one in 100 people in Australia may have coeliac disease but many more report adverse gastrointestinal and/or extra-intestinal symptoms after eating wheat products. In the absence of validated biomarkers, a diagnosis of NCG/WS can only be made by a double-blind, placebo-controlled, dietary crossover challenge with gluten, which is difficult to apply in clinical practice...
August 4, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/28974086/renal-disease-in-patients-with-celiac-disease-a-review
#15
Boonphiphop Boonpheng, Wisit Cheungpasitporn, Karn Wijarnpreecha
Celiac disease, an inflammatory disease of small bowel caused by sensitivity to dietary gluten and related protein, affects approximately 0.5-1% of the population in the Western world. Extraintestinal symptoms and associated diseases are increasingly recognized including diabetes mellitus type 1, thyroid disease, dermatitis herpetiformis and ataxia. There have also been a number of reports of various types of renal involvement in patients with celiac disease including diabetes nephropathy, IgA nephropathy, membranous nephropathy, membranoproliferative glomerulonephritis, nephrotic syndrome related to malabsorption, oxalate nephropathy, and associations of celiac disease with chronic kidney disease and end-stage kidney disease...
October 3, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28970297/coeliac-disease-and-the-liver-spectrum-of-liver-histology-serology-and-treatment-response-at-a-tertiary-referral-centre
#16
Kaushik Majumdar, Puja Sakhuja, Amarender Singh Puri, Kavita Gaur, Aiman Haider, Ranjana Gondal
BACKGROUND: Coeliac disease (CD) is a gluten-sensitive enteropathy diagnosed on the basis of ESPGHAN criteria and clinical response to gluten-free diet (GFD). Histological abnormalities on liver biopsy have been noted in CD but have seldom been described. AIMS: To assess the histological spectrum of 'coeliac hepatitis' and possibility of reversal of such features after a GFD. METHODS: Twenty-five patients with concomitant CD and hepatic derangement were analysed for clinical profile, laboratory investigations and duodenal and liver biopsy...
September 29, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28950706/efficacy-of-a-point-of-care-test-based-on-deamidated-gliadin-peptides-for-the-detection-of-celiac-disease-in-pediatric-patients
#17
Isabel Polanco, Thabata Koester Weber, Eva Martínez-Ojinaga, Manuel Molina, Jesús Sarria
OBJECTIVE: The objective of the study was to assess the effectiveness of a point-of-care test (POCT) based on deamidated gliadin peptides (DGP) compared to the European Society for Paediatric Gastroenterology Hepatology and Nutrition (ESPGHAN) criteria diagnosis in the early detection of celiac disease (CD) in pediatric patients. METHODS: One hundred children (≤ 18 years) with suspected CD were selected, including siblings of celiac children that underwent gastroscopy for other gastrointestinal conditions...
November 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28944073/clinical-and-genetic-profile-of-patients-with-seronegative-coeliac-disease-the-natural-history-and-response-to-gluten-free-diet
#18
Maria Pina Dore, Giovanni Mario Pes, Ivana Dettori, Vincenzo Villanacci, Alessandra Manca, Giuseppe Realdi
OBJECTIVES: Patients with clinical, genetic and histological features of coeliac disease (CD), but negative for serological markers, pose a significant clinical problem. The aim of this study was to outline a specific profile, and to evaluate the natural history and response to gluten-free diet (GFD) of patients with seronegative CD. METHODS: patients with duodenal mucosa damage Marsh I, II and III stages, HLA DQ2/DQ8 haplotype and clinical features suggestive of CD, but negative for CD serology, were defined as seronegative CD patients...
2017: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/28928668/re-challenge-studies-in-non-celiac-gluten-sensitivity-a-systematic-review-and-meta-analysis
#19
Elena Lionetti, Alfredo Pulvirenti, Martina Vallorani, Giulia Catassi, Anil K Verma, Simona Gatti, Carlo Catassi
Background: Non-celiac gluten sensitivity (NCGS) is a clinical entity characterized by intestinal and/or extra-intestinal symptoms related to the ingestion of gluten in individuals that are not affected by either celiac disease (CD) or wheat allergy (WA). Since we do not have specific biomarkers for NCGS, the diagnosis is based on the evidence of a clear relationship between the ingestion of gluten (re-challenge) and clinical symptoms, after a remission during the gluten-free diet (GFD). Several re-challenge studies have been published so far to evaluate the real prevalence of NCGS, reporting conflicting results...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28928632/neurophysiology-of-the-celiac-brain-disentangling-gut-brain-connections
#20
REVIEW
Manuela Pennisi, Alessia Bramanti, Mariagiovanna Cantone, Giovanni Pennisi, Rita Bella, Giuseppe Lanza
Celiac disease (CD) can be considered a complex multi-organ disorder with highly variable extra-intestinal, including neurological, involvement. Cerebellar ataxia, peripheral neuropathy, seizures, headache, cognitive impairment, and neuropsychiatric diseases are complications frequently reported. These manifestations may be present at the onset of the typical disease or become clinically evident during its course. However, CD subjects with subclinical neurological involvement have also been described, as well as patients with clear central and/or peripheral nervous system and intestinal histopathological disease features in the absence of typical CD manifestations...
2017: Frontiers in Neuroscience
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