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https://www.readbyqxmd.com/read/28545781/tests-for-serum-transglutaminase-and-endomysial-antibodies-do-not-detect-most-patients-with-celiac-disease-and-persistent-villous-atrophy-on-gluten-free-diets-a-meta-analysis
#1
Jocelyn A Silvester, Satya Kurada, Andrea Szwajcer, Ciarán P Kelly, Daniel A Leffler, Donald R Duerksen
BACKGROUND & AIMS: Tests to measure serum endomysial antibodies (EMA) and antibodies to tissue transglutaminase (tTG) were developed to screen for celiac disease in patients consuming gluten. However, they are commonly used to monitor patients on a gluten-free diet (GFD). We conducted a meta-analysis to assess the sensitivity and specificity of tTG IgA and EMA IgA assays in identifying patients with celiac disease who have persistent villous atrophy despite a GFD. METHODS: We searched PUBMED, EMBASE, BIOSIS, SCOPUS, clinicaltrials...
May 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28542044/anti-transglutaminase-6-antibody-development-in-children-with-celiac-disease-correlates-with-duration-of-gluten-exposure
#2
Luigina De Leo, Daniel Aeschlimann, Marios Hadjivassiliou, Pascale Aeschlimann, Nicola Salce, Serena Vatta, Fabiana Ziberna, Giorgio Cozzi, Stefano Martelossi, Alessandro Ventura, Tarcisio Not
OBJECTIVES: Antibodies against transglutaminase 6 (anti-TG6) have been implicated in neurological manifestations in adult patients with genetic-gluten intolerance and it is unclear whether autoimmunity to TG6 develops following prolonged gluten exposure. We measured the anti-TG6 in children with celiac disease (CD) at the diagnosis time to establish a correlation between these autoantibodies and the duration of gluten exposure. We investigated a correlation between anti-TG6 and the presence of neurological disorders...
May 24, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28541382/myocardial-fibrosis-in-response-to-pressure-overload-elucidating-the-contribution-of-tissue-transglutaminase
#3
Fernando Rodríguez-Pascual, Javier Díez
No abstract text is available yet for this article.
May 25, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28535873/similar-responses-of-intestinal-t-cells-from-untreated-children-and-adults-with-celiac-disease-to-deamidated-gluten-epitopes
#4
Melinda Ráki, Shiva Dahal-Koirala, Hao Yu, Ilma R Korponay-Szabó, Judit Gyimesi, Gemma Castillejo, Jørgen Jahnsen, Shuo-Wang Qiao, Ludvig M Sollid
BACKGROUND & AIMS: Celiac disease is a chronic small intestinal inflammatory disorder mediated by an immune response to gluten peptides in genetically susceptible individuals. Celiac disease is often diagnosed in early childhood, but some patients receive a diagnosis late in life. It is uncertain whether pediatric celiac disease is distinct from adult celiac disease. It has been proposed that gluten-reactive T cells in children recognize deamidated and native gluten epitopes, whereas T cells from adults only recognize deamidated gluten peptides...
May 20, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28528959/role-of-astakine1-in-regulating-transglutaminase-activity
#5
Ratchanok Sirikharin, Kingkamon Junkunlo, Kenneth Söderhäll, Irene Söderhäll
Transglutaminase (TGase) has been implicated in maintaining the undifferentiated stage of hematopoietic stem cells (HSC) in the crayfish Pacifastacus leniusculus. TGase activity has been reported to be regulated by astakine1, an essential crayfish cytokine for inducing new hemocyte synthesis in hematopoietic tissue (HPT). Here, the role of astakine1 in TGase activity regulation and clotting protein (CP) cross-linking was characterized. A reduction in TGase activity was observed by the addition of purified astakine1 in vitro for both endogenous crayfish TGase and a commercial purified guinea pig liver TGase...
May 18, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28527808/short-communication-effect-of-whey-protein-addition-and-transglutaminase-treatment-on-the-physical-and-sensory-properties-of-reduced-fat-ice-cream
#6
Erfan Danesh, Mostafa Goudarzi, Hossein Jooyandeh
The effects of whey protein addition and transglutaminase treatment, alone and in combination, on the physical and sensory properties of reduced-fat ice cream were investigated. Adding whey protein with or without enzyme treatment decreased melting rate, overrun, and hardness of the reduced-fat ice cream; however, the enzyme-treated sample had a higher melting rate and overrun and softer texture. Whey protein-fortified samples showed higher melting resistance, but lower overrun and firmer texture compared with the enzyme-treated sample without added whey protein...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28522678/cigarette-smoking-associated-alterations-in-serotonin-adrenalin-signaling-pathways-of-platelets
#7
Curtis Lee Lowery, Clay Elliott, Anthonya Cooper, Coedy Hadden, Roberto N Sonon, Parastoo Azadi, D Keith Williams, James D Marsh, Donna S Woulfe, Fusun Kilic
BACKGROUND: Cigarette smoking plays a major role in cardiovascular diseases. The acute effects of cigarette smoking produce central nervous system-mediated activation of the sympathetic nervous system. The overactive sympathetic nervous system stimulates the secretion of serotonin (5-HT) and catecholamine into blood at supraphysiological levels. The correlation between these pathological conditions induced by smoking and the increased risk of thrombosis has not been thoroughly investigated...
May 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28522262/transglutaminase-2-modulation-of-nf-%C3%AE%C2%BAb-signaling-in-astrocytes-is-independent-of-its-ability-to-mediate-astrocytic-viability-in-ischemic-injury
#8
Julianne Feola, Alan Barton, Abdullah Akbar, Jeffrey Keillor, Gail V W Johnson
Transglutaminase 2 (TG2) is a multifunctional protein that can contribute to cell death and cell survival processes in a variety of disease contexts. Within the brain, TG2 has been shown to promote cell death in ischemic injury when expressed in astrocytes (Colak and Johnson, 2012). However, the specific functions and characteristics of astrocytic TG2 that mediate this effect are largely unknown. Therefore, the goal of this study was to investigate the role of astrocytic TG2 in mediating cellular viability processes in the context of ischemic injury, with a specific focus on its contributions to intracellular signaling cascades...
May 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28514852/separated-immobilization-of-incompatible-enzymes-on-polymer-substrate-via-visible-light-induced-living-photografting-polymerization
#9
Xing Zhu, Bin He, Changwen Zhao, Yuhong Ma, Wantai Yang
The use of the mixed catalytic system with several enzymes can provide multiple benefits in terms of the cost, simplification of a multistep reaction, and effectiveness of complex chemical reactions. Although study of different enzyme coimmobilization systems has attracted increasing attention in recent years, separately immobilizing enzymes which can not coexist on one support is still one of the great challenges. In this paper, a simple and effective strategy was introduced to separately encapsulate incompatible trypsin and transglutaminase (TGase) into different poly(ethylene glycol) (PEG) network layer grafted on low-density polyethylene (LDPE) film via visible light induced living photografting polymerization...
May 25, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28514313/clinical-and-biological-correlations-in-celiac-disease-in-children-the-prospective-single-experience-of-a-romanian-tertiary-center-a-case-control-study-strobe-compliant-study
#10
Cristina Oana Marginean, Lorena Elena Meliţ, Roxana-Cristina Mareş, Maria Oana Mărginean, Septimiu Voidăzan, Minodora Dobreanu
Celiac disease-a chronic inflammatory disease of the intestine-is triggered by gluten or associated protein consumption.The aim of our study was to assess the sensitivity, specificity of the combined anti-transglutaminase 2 (TG2)/deamidated gliadin peptide antibodies (DGP), and antiendomisium antibodies (EMA), to determine the distribution of HLA-DQ2/DQ8 for the 140 tested patients, and also to evaluate the clinical and laboratory characteristics of patients admitted with the suspicion of celiac disease (CD)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28499697/assessment-of-dietary-compliance-in-celiac-children-using-a-standardized-dietary-interview
#11
Margaretha M S Wessels, Marije Te Lintelo, Sabine L Vriezinga, Hein Putter, Erica G Hopman, M Luisa Mearin
BACKGROUND & AIMS: Compliance to a gluten free diet (GFD) in celiac disease (CD) is ideally assessed by dietary interviews, albeit time-consuming. Short dietary questionnaires have been developed for adults but not for children. Primary aim was to compare GFD compliance in celiac children, measured by a short dietary questionnaire against a dietary interview. Secondary aims were correlation between both questionnaires and celiac antibodies and identifying variables predicting noncompliance...
April 17, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28498731/tissue-transglutaminase-expression-is-necessary-for-adhesion-metastatic-potential-and-cancer-stemness-of-renal-cell-carcinoma
#12
Yesim Bagatur, Ayca Zeynep Ilter Akulke, Ajna Bihorac, Merve Erdem, Dilek Telci
Tissue transglutaminase (TG2) is the ubiquitously expressed member of transglutaminase family and shown to play a critical role in the development and progression of drug resistance malignancies. We have previously showed the association of TG2 upregulation with progression and metastasis of renal cell carcinoma (RCC) and low disease-free survival. In the present study we further investigate the role of TG2 in cell adhesion, migration and invasion of RCC by silencing TG2 expression in Caki-2 and A-498 primary site and Caki-1 and ACHN metastatic site RCC cell lines...
May 12, 2017: Cell Adhesion & Migration
https://www.readbyqxmd.com/read/28496327/anorexia-nervosa-of-the-restrictive-type-and-celiac-disease-in-adolescence
#13
Renata Nacinovich, Lucio Tremolizzo, Fabiola Corbetta, Elisa Conti, Francesca Neri, Monica Bomba
BACKGROUND: Anorexia nervosa (AN) is usually present in adolescence with symptoms partially overlapping celiac disease (CD), but the relationship between these two conditions has received little attention in the literature. The aim of this work was to explore this relationship, considering if CD could be associated with specific baseline AN-related clinical features. METHODS: In this retrospective study, 82 adolescent female out- and inpatients with AN of the restrictive type (ANr), according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria, were recruited...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28491884/association-of-autoimmune-hepatitis-and-celiac-disease-role-of-gluten-free-diet-in-reversing-liver-dysfunction
#14
Umair Iqbal, Ahmad Chaudhary, Muhammad Arsalan Karim, Muhammad Arsalan Siddiqui, Hafsa Anwar, Nancy Merrell
Autoimmune hepatitis (AIH) is a chronic inflammation of liver with unclear etiology. It is frequently associated other autoimmune diseases, and its association with celiac disease (CD) is well established. In this article, we describe the case of a 50-year-old male with long-standing AIH taking azathioprine for 10 years, evaluated for flares in transaminases. Despite adding high-dose corticosteroids, his transaminases and bilirubin remained high. Serology for CD was ordered, which revealed elevated tissue transglutaminase antibody IgG and endomysial IgA, which was further confirmed by endoscopic biopsy...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28490058/a-cold-active-transglutaminase-from-antarctic-krill-euphausia-superba-purification-characterization-and-application-in-the-modification-of-cold-set-gelatin-gel
#15
Yi Zhang, Shudong He, Benjamin K Simpson
Transglutaminase (TGase), EC 2.3.2.13, was purified from whole Antarctic krill (Euphausia superba) using ammonium sulfate fractionation and DEAE-Sephacel chromatography. The purified enzyme had specific activity, purification fold and yield of 53.518U/mg, 10.272 and 10.992%, respectively. The molecular weight of the purified Antarctic krill TGase was estimated to be 78kDa using sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). The optimal pH and temperature for the activity of the purified TGase were pH 8...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28483757/barriers-to-implementing-the-revised-espghan-guidelines-for-coeliac-disease-in-children-a-cross-sectional-survey-of-coeliac-screen-reporting-in-laboratories-in-england
#16
Siba Prosad Paul, Sophie Louise Harries, Dharamveer Basude
BACKGROUND: European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) guidelines for diagnosing paediatric coeliac disease (CD) were revised in 2012. This enabled serological diagnosis in a selective group of symptomatic children using anti-tissue transglutaminase (anti-tTG) titre, antiendomysial antibodies (EMA) and HLA DQ2/DQ8 status. However, observing variations in the availability of serological tests for CD within our region, we conducted a countrywide survey to explore the diversity of these tests for all paediatric centres...
May 8, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28476891/drosophila-tg-a-transglutaminase-is-secreted-via-an-unconventional-golgi-independent-mechanism-involving-exosomes-and-two-types-of-fatty-acylations
#17
Toshio Shibata, Jinki Hadano, Daichi Kawasaki, Xiaoqing Dong, Shun-Ichiro Kawabata
Transglutaminases (TGs) play essential intracellular and extracellular roles by covalently cross-linking many proteins. Drosophila TG is encoded by one gene and has two alternative splicing-derived isoforms, TG-A and TG-B, which contain distinct N-terminal 46- and 38-amino acid sequences, respectively. The TGs identified to date do not have a typical endoplasmic reticulum (ER)-signal peptide, and the molecular mechanisms of their secretion under physiologic conditions are unclear. Immunocytochemistry revealed that TG-A localizes to multivesicular-like structures, whereas TG-B localizes to the cytosol...
May 5, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28472103/tgm1-like-transglutaminases-in-tilapia-oreochromis-mossambicus
#18
Sandra I Rodriguez Cruz, Marjorie A Phillips, Dietmar Kültz, Robert H Rice
Among the adaptations of aquatic species during evolution of terrestrial tetrapods was the development of an epidermis preventing desiccation. In present day mammals, keratinocytes of the epidermis, using a membrane-bound transglutaminase (Tgm1), accomplish this function by synthesizing a scaffold of cross-linked protein to which a lipid envelope is attached. This study characterizes the abilities of two homologous transglutaminase isozymes in the teleost fish tilapia to form cross-linked protein structures and their expression in certain tissues...
2017: PloS One
https://www.readbyqxmd.com/read/28466499/implementation-of-national-institute-for-health-and-care-excellence-nice-guidance-to-measure-iga-with-all-coeliac-screens-can-an-affordable-solution-be-devised
#19
Dylan James Mac Lochlainn, Ravina Hira-Kazal, Helen Varney, John Maher
There has been a dramatic increase in requests for coeliac disease (CD) serological screening using IgA tissue transglutaminase antibodies (IgA-tTG). Recently, the UK National Institute for Health and Care Excellence has revised its guidance, recommending that total IgA should also be measured in all samples. This is justified since false negative results may occur with IgA deficiency. However, implementation of this guidance will incur considerable expense. Tests that measure IgA-tTG antibodies can detect IgA deficiency, indicated by low background signal...
May 2, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28466190/microglia-endocytose-amyloid-%C3%AE-through-the-binding-of-transglutaminase-2-and-milk-fat-globule-egf-factor-8-protein
#20
Kenji Kawabe, Katsura Takano, Mitsuaki Moriyama, Yoichi Nakamura
Activation of glial cells has been observed in neurodegenerative diseases including Alzheimer's disease (AD). Aggregation of amyloid β (Aβ) is profusely observed as characteristic pathology in AD brain. In our previous study using microglial cell line BV-2, tissue-type transglutaminase (TG2) was found to be involved in phagocytosis (Kawabe et al., in Neuroimmunomodulation 22(4):243-249, 2015; Kawabe et al., Neurochem Res 2017). In the present study, we examined whether TG2 and milk fat globule EGF factor 8 protein (MFG-E8), an adaptor protein promotes macrophage to engulf apoptotic cells, were involved in Aβ endocytosis...
May 3, 2017: Neurochemical Research
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