0000000000326949

AUTHOR

Ghassan Darwish

showing 2 related works from this author

Commensal Bacterium Rothia aeria Degrades and Detoxifies Gluten via a Highly Effective Subtilisin Enzyme

2020

Celiac disease is characterized by a chronic immune-mediated inflammation of the small intestine, triggered by gluten contained in wheat, barley, and rye. Rothia aeria, a gram-positive natural colonizer of the oral cavity and the upper digestive tract is able to degrade and detoxify gluten in vitro. The objective of this study was to assess gluten-degrading activity of live and dead R. aeria bacteria in vitro, and to isolate the R. aeria gluten-degrading enzyme. Methods: After an overnight fast, Balb/c mouse were fed a 1 g pellet of standard chow containing 50% wheat (and 4% gliadin) with or without 1.6 &times

0301 basic medicinelcsh:TX341-641detoxifymedicine.disease_causedigestive systemBacterial cell structure<i>Rothia</i>Microbiology03 medical and health sciences0302 clinical medicinemedicineZymographydegradationchemistry.chemical_classificationepitopeNutrition and DieteticsbiologyRothia aeria<i>Bacillus</i>food and beveragesnutritional and metabolic diseasesbiology.organism_classificationGlutenneutralizecuredigestive system diseasesEnzyme assay030104 developmental biologychemistryglutencommensalbiology.proteinsubtilisin030211 gastroenterology & hepatologyDigestionGliadinlcsh:Nutrition. Foods and food supplyceliac diseaseBacteriaFood ScienceNutrients
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Gluten Degrading Enzymes for Treatment of Celiac Disease

2020

Celiac disease (CeD) affects about 1% of most world populations. It presents a wide spectrum of clinical manifestations, ranging from minor symptoms to mild or severe malabsorption, and it may be associated with a wide variety of autoimmune diseases. CeD is triggered and maintained by the ingestion of gluten proteins from wheat and related grains. Gluten peptides that resist gastrointestinal digestion are antigenically presented to gluten specific T cells in the intestinal mucosa via HLA-DQ2 or HLA-DQ8, the necessary genetic predisposition for CeD. To date, there is no effective or approved treatment for CeD other than a strict adherence to a gluten-free diet, which is difficult to maintain…

Male0301 basic medicineProteasesGlutensDrug CompoundingT-Lymphocytesenzyme therapylcsh:TX341-641ReviewBiologyDiet Gluten-Free03 medical and health sciences0302 clinical medicineAntigenIntestinal mucosaglutenasewheatHLA-DQ AntigensEnzyme StabilityGenetic predispositionHumansGenetic Predisposition to Diseaseenteric coatingSubtilisinsendopeptidasechemistry.chemical_classificationNutrition and Dieteticstreatmentfungiautoimmunitynutritional and metabolic diseasesGlutendigestive system diseasesGlutamine030104 developmental biologyEnzymeBiochemistrychemistryglutenProteolysisFemale030211 gastroenterology & hepatologyProlyl OligopeptidasesSubtilisinslcsh:Nutrition. Foods and food supplyceliac diseaseFood ScienceNutrients
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