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Gluten sensitivity

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https://www.readbyqxmd.com/read/28293318/gluten-sensitivity-among-egyptian-infants-with-congenital-heart-disease
#1
Inas R El-Alameey, Hanaa H Ahmed, Sawsan M Tawfik, Fawzia Hassaballa, Ayman M Abdel Gawad, Eman Eltahlawy
BACKGROUND: Gastrointestinal symptoms are a common feature in infants with congenital heart disease. AIM: This study was designed to evaluate age-dependent serum levels of antigliadin antibodies among malnourished Egyptian infants with congenital heart disease (CHD) and gastrointestinal symptoms. SUBJECTS AND METHODS: This case-control study conducted on 60 infants with established congenital heart disease. They were subdivided into cyanotic and acyanotic groups, and each group includes 30 patients compared with thirty apparently healthy infants of matched age, sex, and social class...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28285530/a-comparison-of-gluten-extraction-protocols-assessed-by-lc-ms-ms-analysis
#2
Azadeh Fallahbaghery, Wei Zou, Keren Byrne, Crispin A Howitt, Michelle L Colgrave
The efficiency of gluten extraction is of critical importance to the results derived from any analytical method for gluten detection and quantitation, whether it employs reagent-based technology (antibodies) or analytical instrumentation (mass spectrometry). If the target proteins are not efficiently extracted the end result will be an under-estimation in the gluten content posing a health risk to people affected by conditions such as coeliac disease (CD) and non-coeliac gluten sensitivity (NCGS). Five different extraction protocols were investigated using LC-MRM-MS for their ability to efficiently and reproducibly extract gluten...
March 12, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28274420/evolution-of-volatile-compounds-in-gluten-free-bread-from-dough-to-crumb
#3
Joana Pico, Mario M Martínez, José Bernal, Manuel Gómez
Understanding the evolution of volatile compounds from dough to crumb is necessary in order to improve the weak aroma of gluten-free breads. Additionally, sensitive analytical methods are required to detect small changes. In the present study, a solvent extraction method combined with GC/MS was selected to examine the evolution of 31 principal volatile compounds from the beginning of fermentation to the end of baking in maize starch bread. During fermentation, only hexanal, hexanoic acid, benzaldehyde, benzyl alcohol, furfural and furfuryl alcohol remained constant whereas the rest became more abundant...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28273770/transglutaminase-6-is-an-autoantigen-in-progressive-multiple-sclerosis-and-is-upregulated-in-reactive-astrocytes
#4
Massimiliano Cristofanilli, Daniel Gratch, Benjamin Pagano, Kelsey McDermott, Jessie Huang, Jeffrey Jian, Deneb Bates, Saud A Sadiq
BACKGROUND: Transglutaminase-6 (TGM6), a member of the transglutaminase enzyme family, is found predominantly in central nervous system (CNS) neurons under physiological conditions. It has been proposed as an autoimmune target in cerebral palsy, gluten-sensitive cerebellar ataxia, and schizophrenia. OBJECTIVE: To investigate TGM6 involvement in multiple sclerosis (MS). METHODS: Antibody levels against TGM6 (TGM6-IgG) were measured in the cerebrospinal fluid (CSF) of 62 primary progressive multiple sclerosis (PPMS), 85 secondary progressive multiple sclerosis (SPMS), and 50 relapsing-remitting multiple sclerosis (RRMS) patients and 51 controls...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28264483/evolutionary%C3%A2-developments%C3%A2-in%C3%A2-interpreting%C3%A2-the%C3%A2-gluten-induced%C3%A2-mucosal%C3%A2-celiac%C3%A2-lesion-%C3%A2-an%C3%A2-archimedian%C3%A2-heuristic
#5
REVIEW
Michael N Marsh, Calvin J Heal
The evolving history of the small intestinal biopsy and its interpretation-and misinterpretations-are described in this paper. Certain interpretative errors in the technical approaches to histological assessment are highlighted-even though we may never be rid of them. For example, mucosal "flattening" does not reduce individual villi to their cores, as still seems to be widely believed. Neither is the mucosa undergoing an atrophic process-since it can recover structurally. Rather, the intestinal mucosa manifests a vast hypertrophic response resulting in the formation of large plateaus formed from partially reduced villi and their amalgamation with the now increased height and width of the inter-villous ridges: this is associated with considerable increases in crypt volumes...
February 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28244667/non-coeliac-gluten-sensitivity
#6
REVIEW
Peter R Gibson, Gry I Skodje, Knut E A Lundin
Irritable bowel syndrome-like symptoms in response to wheat ingestion is common and well described, but whether the reaction is due to gluten (i.e., non-coeliac gluten sensitivity), other wheat proteins, or FODMAPs (mostly fructans) alone or in combinations has not been clearly defined. Exclusion of coeliac disease in the presence of negative serology, and normal villous architecture but increased density of intraepithelial lymphocytes on duodenal biopsies, is difficult. Furthermore, the confidence by which a positive diagnosis is made or non-coeliac gluten sensitivity is excluded by blinded placebo-controlled rechallenge with wheat protein is reduced by strong nocebo responses generally found in patients with self-reported non-coeliac gluten sensitivity...
March 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28243563/comparison-of-four-functionalization-methods-of-gold-nanoparticles-for-enhancing-the-enzyme-linked-immunosorbent-assay-elisa
#7
Paula Ciaurriz, Fátima Fernández, Edurne Tellechea, Jose F Moran, Aaron C Asensio
The enzyme-linked immunosorbent assay (ELISA) technique is based on the specific recognition ability of the molecular structure of an antigen (epitope) by an antibody and is likely the most important diagnostic technique used today in bioscience. With this methodology, it is possible to diagnose illness, allergies, alimentary fraud, and even to detect small molecules such as toxins, pesticides, heavy metals, etc. For this reason, any procedures that improve the detection limit, sensitivity or reduce the analysis time could have an important impact in several fields...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28234993/isolation-and-characterization-of-gluten-protein-types-from-wheat-rye-barley-and-oats-for-use-as-reference-materials
#8
Kathrin Schalk, Barbara Lexhaller, Peter Koehler, Katharina Anne Scherf
Gluten proteins from wheat, rye, barley and, in rare cases, oats, are responsible for triggering hypersensitivity reactions such as celiac disease, non-celiac gluten sensitivity and wheat allergy. Well-defined reference materials (RM) are essential for clinical studies, diagnostics, elucidation of disease mechanisms and food analyses to ensure the safety of gluten-free foods. Various RM are currently used, but a thorough characterization of the gluten source, content and composition is often missing. However, this characterization is essential due to the complexity and heterogeneity of gluten to avoid ambiguous results caused by differences in the RM used...
2017: PloS One
https://www.readbyqxmd.com/read/28231144/effects-of-two-step-transamidation-of-wheat-semolina-on-the-technological-properties-of-gluten
#9
Salvatore Moscaritolo, Lucia Treppiccione, Antonio Ottombrino, Mauro Rossi
Celiac disease (CD) is an immune-mediated disorder caused by the ingestion of wheat gluten. A lifelong, gluten-free diet is required to alleviate symptoms and to normalize the intestinal mucosa. We previously found that transamidation reaction by microbial transglutaminase (mTG) was effective in down-regulating the gliadin-specific immune response in CD patients. In this study, the two-step transamidation protocol was adopted to treat commercial wheat semolina on a pilot scale. The effectiveness of the enzymatic reaction was tested by means of consolidated biochemical and immunological methods on isolated prolamins...
June 29, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28216964/intraepithelial-lymphocytes-scores-mimickers-and-challenges-in-diagnosing-gluten-sensitive-enteropathy-celiac-disease
#10
REVIEW
Consolato Sergi, Fan Shen, Gerd Bouma
The upper digestive tract is routinely scoped for several causes of malabsorption, and the number of duodenal biopsy specimens has increased notably in the last 10 years. Gluten-sensitive enteropathy (GSE) is an autoimmune disease, which shows an increasing prevalence worldwide and requires a joint clinico-pathological approach. The classical histopathology of GSE with partial or total villous blunting is well recognized, but the classification of GSE is not straightforward. Moreover, several mimickers of GSE with intraepithelial lymphocytosis have been identified in the last 20 years, with drug interactions and medical comorbidities adding to the conundrum...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28208686/identification-of-autophagy-related-genes-and-their-regulatory-mirnas-associated-with-celiac-disease-in-children
#11
Sergio Comincini, Federico Manai, Cristina Meazza, Sara Pagani, Carolina Martinelli, Noemi Pasqua, Gloria Pelizzo, Marco Biggiogera, Mauro Bozzola
Celiac disease (CD) is a severe genetic autoimmune disorder, affecting about one in 100 people, where the ingestion of gluten leads to damage in the small intestine. Diagnosing CD is quite complex and requires blood tests and intestinal biopsy examinations. Controversy exists regarding making the diagnosis without biopsy, due to the large spectrum of manifesting symptoms; furthermore, small-intestinal gastroscopy examinations have a relatively complex management in the pediatric population. To identify novel molecular markers useful to increase the sensitivity and specificity in the diagnosis of pediatric CD patients, the expression levels of two key autophagy executor genes (ATG7 and BECN1) and their regulatory validated miRNAs (miR-17 and miR-30a, respectively) were analyzed by relative quantitative real-time-PCR on a cohort of confirmed CD patients compared to age-related controls...
February 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28198183/heating-reduces-proso-millet-protein-digestibility-via-formation-of-hydrophobic-aggregates
#12
Paridhi Gulati, Aixia Li, David Holding, Dipak Santra, Yue Zhang, Devin J Rose
Proso millet protein has reported structural similarities with sorghum. In order to explore the potential of this crop as an alternative protein source for people with gluten sensitivity, in vitro protein digestibility was analyzed. Dehulled proso millet flour was subjected to various processing techniques (dry heating and wet heating). Regardless of the processing technique there was a significant decline in digestibility of protein in proso millet flour when compared with unprocessed flour (from 79.7 ± 0...
February 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28169403/-gluten-sensitivity-a-21st-century-epidemic
#13
Martin Eastwood
No abstract text is available yet for this article.
February 7, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28168522/no-association-between-gluten-sensitivity-and-amyotrophic-lateral-sclerosis
#14
Anne E Visser, Raha Pazoki, Sara L Pulit, Wouter van Rheenen, Joost Raaphorst, Anneke J van der Kooi, Isis Ricaño-Ponce, Cisca Wijmenga, Henny G Otten, Jan H Veldink, Leonard H van den Berg
To examine evidence for a role of gluten sensitivity (GS) or celiac disease (CD) in ALS etiology, we included participants from a population-based case-control study in The Netherlands between January 2006 and December 2015. We compared levels and seroprevalence of IgA antibodies to tissue transglutaminase 6 (TG6) in 359 ALS patients and 359 controls, and to transglutaminase 2 (TG2) and endomysium (EMA) in 199 ALS patients and 199 controls. Questionnaire data on 1829 ALS patients and 3920 controls were examined for CD or gluten-free diets (GFD)...
February 6, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28161854/diagnostic-yield-of-isolated-deamidated-gliadin-peptide-antibody-elevation-for-celiac-disease
#15
Nicholas A Hoerter, Sarah E Shannahan, Jorge Suarez, Suzanne K Lewis, Peter H R Green, Daniel A Leffler, Benjamin Lebwohl
BACKGROUND: Serologic testing for celiac disease includes tissue transglutaminase and endomysial antibodies. In addition to these tools, assays for deamidated gliadin peptide antibodies have been shown to have sensitivity and specificity that are comparable to tissue transglutaminase testing, and are increasingly being used for celiac disease testing. AIMS: The goal of this study is to evaluate the utility of deamidated gliadin peptide (DGP) testing in the setting of a negative tissue transglutaminase (TTG) IgA test...
February 4, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28157173/contact%C3%A2-dermatitis%C3%A2-due%C3%A2-to%C3%A2-nickel%C3%A2-allergy%C3%A2-in%C3%A2-patients-suffering%C3%A2-from%C3%A2-non-celiac%C3%A2-wheat%C3%A2-sensitivity
#16
Alberto D'Alcamo, Pasquale Mansueto, Maurizio Soresi, Rosario Iacobucci, Francesco La Blasca, Girolamo Geraci, Francesca Cavataio, Francesca Fayer, Andrea Arini, Laura Di Stefano, Giuseppe Iacono, Liana Bosco, Antonio Carroccio
BACKGROUND:  Non-celiac wheat sensitivity (NCWS) is a new clinical entity in the world of  gluten-related diseases. Nickel, the most frequent cause of contact allergy, can be found in wheat  and results in systemic nickel allergy syndrome and mimics irritable bowel syndrome (IBS).  Objective: To evaluate the frequency of contact dermatitis due to nickel allergy in NCWS patients  diagnosed by a double-blind placebo-controlled(DBPC)challenge,and to identify  the  characteristics  of  NCWS  patients  with  nickel  allergy...
February 2, 2017: Nutrients
https://www.readbyqxmd.com/read/28140327/nonceliac-gluten-sensitivity
#17
REVIEW
Anna Krigel, Benjamin Lebwohl
Nonceliac gluten sensitivity (NCGS) refers to a clinical phenotype in which patients experience intestinal and extraintestinal symptoms related to ingesting a gluten-containing diet after a diagnosis of celiac disease (CD) or wheat allergy has been excluded. CD, an autoimmune disease characterized by villous atrophy triggered by the ingestion of gluten, has increased in prevalence in recent decades, although the majority of patients remain undiagnosed. There is now an increasing public awareness of NCGS and growing interest in the health effects of gluten among health professionals and the lay public...
November 2016: Advances in Nutrition
https://www.readbyqxmd.com/read/28135975/a-diet-enriched-with-red-sorghum-flaked-biscuits-compared-to-a-diet-containing-white-wheat-flaked-biscuits-does-not-enhance-the-effectiveness-of-an-energy-restricted-meal-plan-in-overweight-and-mildly-obese-adults
#18
Anita Stefoska-Needham, Eleanor J Beck, Stuart K Johnson, Marijka J Batterham, Ross Grant, John Ashton, Linda C Tapsell
OBJECTIVES: Whole grain sorghum is a promising ingredient in foods, especially those targeting satiety and weight control. This study aimed to test weight loss effects of a whole grain red sorghum product incorporated into an energy-restricted diet. METHODS: Sixty subjects (46 females) were randomized to either a sorghum (intervention) or white wheat (control) group, receiving 45 g of flaked cereal biscuits to include daily in their prescribed diets for 12 weeks...
January 31, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28121432/label-free-detection-of-gliadin-in-food-by-quartz-crystal-microbalance-based-immunosensor
#19
Riccardo Funari, Irma Terracciano, Bartolomeo Della Ventura, Sara Ricci, Teodoro Cardi, Nunzio D'Agostino, Raffaele Velotta
Gluten is a protein composite found in wheat and related grains including barley, rye, oat, and all their species and hybrids. Gluten matrix is a biomolecular network of gliadins and glutenins that contribute to the texture of pastries, breads, and pasta. Gliadins are mainly responsible for celiac disease, one of the most widespread food-related pathologies in Western world. In view of the importance of gliadin proteins, by combining the quartz crystal microbalance technology, a cheap and robust piezoelectric transducer, with the so-called photonic immobilization technique, an effective surface functionalization method that provides spatially oriented antibodies on gold substrates, we realized a sensitive and reliable biosensor for quantifying these analytes extracted from real samples in a very short time...
February 6, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28117706/prevalence-of-self-reported-gluten-sensitivity-and-adherence-to-a-gluten-free-diet-in-argentinian-adult-population
#20
Francisco Cabrera-Chávez, Gimena V A Dezar, Anna P Islas-Zamorano, Jesús G Espinoza-Alderete, Marcela J Vergara-Jiménez, Dalia Magaña-Ordorica, Noé Ontiveros
BACKGROUND: Previous studies suggest that the prevalence of wheat/gluten sensitivity and adherence to a gluten-free diet (GFD) are high in Latin population despite a poor diagnosis of celiac disease. However, these prevalence rates still remain unknown in most Latin American countries. METHODS: A cross-sectional survey study was conducted in Santa Fe, Argentina. RESULTS: The estimated self-reported prevalence rates were (95% Confidence Interval [CI]): self-reported gluten sensitivity (SR-GS) 7...
January 21, 2017: Nutrients
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