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Zonulin

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https://www.readbyqxmd.com/read/29226642/homoarginine-associates-with-zonulin-and-tryptophan-findings-in-a-high-risk-cohort-of-patients-carrying-an-aicd
#1
Elli Mann, Robert Kluesener, Felix Boschann, Jana Ruppert, Franz P Armbruster, Andreas Meinitzer, Christoph Melzer, Thomas B Dschietzig
BACKGROUND: Homoarginine (hArg) is known to have an impact on nitric oxide (NO) metabolism. It seems to increase NO generation and/or availability, thereby enhancing endothelial function. In addition, hArg is connected to energy metabolism since the key enzyme, L-arginine-glycine amidinotransferase (AGAT) for hArg synthesis in the kidneys, is also involved in the synthesis of energy metabolites like guanidinoacetate. Former studies indicate that low levels of hArg are linked to cardiovascular disease and increased all-cause mortality...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29179781/low-fat-yogurt-consumption-reduces-biomarkers-of-chronic-inflammation-and-inhibits-markers-of-endotoxin-exposure-in-healthy-premenopausal-women-a-randomised-controlled-trial
#2
Ruisong Pei, Diana M DiMarco, Kelley K Putt, Derek A Martin, Qinlei Gu, Chureeporn Chitchumroonchokchai, Heather M White, Cameron O Scarlett, Richard S Bruno, Bradley W Bolling
The anti-inflammatory mechanisms of low-fat dairy product consumption are largely unknown. The objective of this study was to determine whether low-fat yogurt reduces biomarkers of chronic inflammation and endotoxin exposure in women. Premenopausal women (BMI 18·5-27 and 30-40 kg/m2) were randomised to consume 339 g of low-fat yogurt (yogurt non-obese (YN); yogurt obese (YO)) or 324 g of soya pudding (control non-obese; control obese (CO)) daily for 9 weeks (n 30/group). Fasting blood samples were analysed for IL-6, TNF-α/soluble TNF II (sTNF-RII), high-sensitivity C-reactive protein, 2-arachidonoyl glycerol, anandamide, monocyte gene expression, soluble CD14 (sCD14), lipopolysaccharide (LPS), LPS binding protein (LBP), IgM endotoxin-core antibody (IgM EndoCAb), and zonulin...
November 28, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/29134616/zonulin-inflammation-and-iron-status-in-patients-with-early-stages-of-chronic-kidney-disease
#3
Ewelina Lukaszyk, Mateusz Lukaszyk, Ewa Koc-Zorawska, Anna Bodzenta-Lukaszyk, Jolanta Malyszko
BACKGROUND/AIMS: Zonulin is the only known regulator of intestinal permeability. It is also considered as a potential inflammatory marker in several conditions such as diabetes and inflammatory bowel syndrome. The aim of the study was to investigate zonulin levels in patients with early stages of CKD and its possible correlation with inflammation, anemia and iron status parameters. METHODS: Eighty-eight patients with early stages of CKD and 23 healthy volunteers were enrolled in the study...
November 13, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29072974/the-occurrence-of-antibodies-against-gluten-in-children-with-autism-spectrum-disorders-does-not-correlate-with-serological-markers-of-impaired-intestinal-permeability
#4
Jan Józefczuk, Ewa Konopka, Joanna Beata Bierła, Ilona Trojanowska, Agnieszka Sowińska, Rafał Czarnecki, Lucjan Sobol, Paweł Józefczuk, Weronika Surdy, Bożena Cukrowska
There is evidence that children with autism spectrum disorders (ASDs) display an increased immune reactivity against gluten, which is supposed to be the effect of intestinal barrier abnormalities. The aim of study was to evaluate the relation of antibody induced by gluten to zonulin and intestinal fatty acid binding proteins (I-FABP), that is, serological markers of an impaired gut barrier. The study included 77 patients with ASDs. Zonulin, I-FABP, celiac-specific antibodies, anti-gliadin antibodies (AGA), and antibodies against neural transglutaminase 6 (TG6) of immunoglobulin (Ig) A and IgG classes were detected in sera...
October 26, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29051757/role-of-gut-microbiota-on-cardio-metabolic-parameters-and-immunity-in-coronary-artery-disease-patients-with-and-without-type-2-diabetes-mellitus
#5
Lidia Sanchez-Alcoholado, Daniel Castellano-Castillo, Laura Jordán-Martínez, Isabel Moreno-Indias, Pilar Cardila-Cruz, Daniel Elena, Antonio J Muñoz-Garcia, Maria I Queipo-Ortuño, Manuel Jimenez-Navarro
Gut microbiota composition has been reported as a factor linking host metabolism with the development of cardiovascular diseases (CVD) and intestinal immunity. Such gut microbiota has been shown to aggravate CVD by contributing to the production of trimethylamine N-oxide (TMAO), which is a pro-atherogenic compound. Treg cells expressing the transcription factor Forkhead box protein P3 (FoxP3) play an essential role in the regulation of immune responses to commensal microbiota and have an atheroprotective role...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29034305/fecal-zonulin-is-elevated-in-crohn-s-disease-and-in-cigarette-smokers
#6
Karin Malíčková, Irena Francová, Milan Lukáš, Martin Kolář, Eva Králíková, Martin Bortlík, Dana Ďuricová, Lenka Štěpánková, Kamila Zvolská, Alexandra Pánková, Tomáš Zima
OBJECTIVES: Human zonulin is a protein that increases permeability in the epithelial layer of the small intestine by reversibly modulating the intercellular tight junctions. There is not sufficient information available about zonulin's participation in inflammatory bowel diseases (IBD). The aim of this study was therefore to investigate fecal and serum zonulin in IBD patients and its relation to the disease localization, behavior and smoking status. DESIGN AND METHODS: Forty IBD patients and forty healthy persons were examined for fecal and serum zonulin concentrations by competitive ELISA (DRG International Inc)...
December 2017: Practical Laboratory Medicine
https://www.readbyqxmd.com/read/29032392/exercise-and-gastrointestinal-symptoms-running-induced-changes-in-intestinal-permeability-and-markers-of-gastrointestinal-function-in-asymptomatic-and-symptomatic-runners
#7
Elisa Karhu, Richard A Forsgård, Lauri Alanko, Henrik Alfthan, Pirkko Pussinen, Esa Hämäläinen, Riitta Korpela
PURPOSE: Athletes frequently experience gastrointestinal (GI) symptoms during training and competition. Although the prevalence of exercise-induced GI symptoms is high, the mechanisms leading to GI distress during exercise are not fully understood. The aim of this study was to identify running-induced changes in intestinal permeability and markers of GI function and investigate their association with gastrointestinal symptoms. METHODS: We recruited 17 active runners who we allocated as either asymptomatic or symptomatic based on their history of experiencing GI symptoms during running...
December 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29030980/beneficial-effect-of-alcohol-withdrawal-on-gut-permeability-and-microbial-translocation-in-patients-with-alcohol-use-disorder
#8
Hélène Donnadieu-Rigole, Nathalie Pansu, Thibault Mura, Stéphanie Pelletier, Régis Alarcon, Lucie Gamon, Pascal Perney, Florence Apparailly, Jean-Philippe Lavigne, Catherine Dunyach-Remy
BACKGROUND: The human intestinal microbiota exerts beneficial or harmful effects in several disorders. Many factors, including alcohol consumption, may influence its composition and trigger bacterial translocation. Excessive alcohol consumption increases gut permeability and translocation of endotoxin into peripheral circulation. Although plasma endotoxin concentrations have been measured often, quantitative changes following alcohol withdrawal have never been described in subjects with alcohol use disorder (AUD)...
October 14, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28925931/gut-microbiota-dependent-trimethylamine-n-oxide-and-serum-biomarkers-in-patients-with-t2dm-and-advanced-ckd
#9
Mohammed A I Al-Obaide, Ruchi Singh, Palika Datta, Kathy A Rewers-Felkins, Maria V Salguero, Ibtisam Al-Obaidi, Kameswara Rao Kottapalli, Tetyana L Vasylyeva
Trimethylamine-N-oxide (TMAO) is a product of dietary, gut microbiome, and tissues metabolism. Elevated blood TMAO levels are associated with heart attack, stroke and chronic kidney disease (CKD). The purpose of our study was to investigate the gut microbiota associated with trimethylamine (TMA) production, the precursor of TMAO, and the serum levels of TMAO and inflammatory biomarkers associated with type 2 diabetes mellitus (T2DM) and CKD. Twenty adults with T2DM and advanced CKD and 20 healthy adults participated in the study...
September 19, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28883692/fluctuation-of-zonulin-levels-in-blood-vs-stability-of-antibodies
#10
Aristo Vojdani, Elroy Vojdani, Datis Kharrazian
AIM: To evaluate the measurement of zonulin level and antibodies of zonulin and other tight junction proteins in the blood of controls and celiac disease patients. METHODS: This study was conducted to assess the variability or stability of zonulin levels vs IgA and IgG antibodies against zonulin in blood samples from 18 controls at 0, 6, 24 and 30 h after blood draw. We also measured zonulin level as well as zonulin, occludin, vinculin, aquaporin 4 and glial fibrillary acidic protein antibodies in the sera of 30 patients with celiac disease and 30 controls using enzyme-linked immunosorbent assay methodology...
August 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28871457/protective-effect-of-1-25-dihydroxy-vitamin-d3-on-pepsin-trypsin-resistant-gliadin-induced-tight-junction-injuries
#11
Shouquan Dong, Tikka Prabhjot Singh, Xin Wei, Huang Yao, Hongling Wang
BACKGROUND: Tight junction (TJ) injuries induced by pepsin-trypsin-resistant gliadin (PT-G) play an important role in the pathogenesis of celiac disease. Previously, 1,25-dihydroxy vitamin D3 (VD3) was reported to be a TJ regulator that attenuates lipopolysaccharide- and alcohol-induced TJ injuries. However, whether VD3 can attenuate PT-G-induced TJ injuries is unknown. AIM: The aim of this study was to evaluate the effects of VD3 on PT-G-induced TJ injuries. METHODS: Caco-2 monolayers were used as in vitro models...
September 4, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28844856/rip3-and-pmlkl-promote-necroptosis-induced-inflammation-and-alter-membrane-permeability-in-intestinal-epithelial-cells
#12
Anna Negroni, Eleonora Colantoni, Maria Pierdomenico, Francesca Palone, Manuela Costanzo, Salvatore Oliva, Antonio Tiberti, Salvatore Cucchiara, Laura Stronati
BACKGROUND: Necroptosis is an inflammatory form of programmed cell death requiring receptor-interacting protein kinase 3 (RIP3) and mixed lineage kinase domain-like protein (MLKL). AIMS: The aim of this study is to examine in depth in vitro and ex vivo the contribution of necroptosis to intestinal inflammation. METHODS: In vitro: we used an intestinal cell line, HCT116RIP3, produced in our laboratory and overexpressing RIP3. Ex vivo: intestinal mucosal biopsies were taken from patients with inflammatory bowel disease (IBD) (20 with Crohn's disease; 20 with ulcerative colitis) and from 20 controls...
August 10, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28797988/effects-of-long-term-synbiotic-supplementation-in-addition-to-lifestyle-changes-in-children-with-obesity-related-non-alcoholic-fatty-liver-disease
#13
Murat Çakır, Ayşe Aksel İşbilen, İlker Eyüpoğlu, Elif Sağ, Asım Örem, Tuğba Mazlum Şen, Neşe Kaklıkkaya, Gülay Kaya
BACKGROUND/AIMS: We aimed to analyze the efficiency of a novel treatment approach, long-term synbiotic supplementation, in addition to lifestyle changes in children with non-alcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS: The study included children with NAFLD (n=28) and a healthy control group (n=30). Children with NAFLD were given 1 capsule/day of synbiotics. Anthropometric parameters; biochemical analysis, including ethanol, tumor necrosis factor-α (TNF-α), total oxidant status (TOS) and anti-oxidant status (TAS), zonulin, and fecal calprotectin; and ultrasonographic examination were performed at baseline and 4 months later...
August 9, 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28769143/zonulin-a-potential-marker-of-intestine-injury-in-newborns
#14
Anna Tarko, Anna Suchojad, Marta Michalec, Małgorzata Majcherczyk, Aniceta Brzozowska, Iwona Maruniak-Chudek
INTRODUCTION: Zonulin (ZO), a new diagnostic biomarker of intestinal permeability, was tested in newborns presenting symptoms of infection and/or inflammation of the gut or being at risk of intestinal pathology. MATERIAL AND METHODS: Serum ZO was assessed in 81 newborns diagnosed with sepsis, necrotizing enterocolitis (NEC), rotavirus infection, and gastroschisis, also in extremely low gestational age babies, and in controls (healthy newborns). ZO concentration was compared to C-reactive protein (CRP) and procalcitonin (PCT) values, leucocyte and platelet count, basic demographic data, and the value of the Neonatal Therapeutic Intervention Scoring System (NTISS)...
2017: Disease Markers
https://www.readbyqxmd.com/read/28743559/low-grade-endotoxemia-gut-permeability-and-platelet-activation-in-patients-with-impaired-fasting-glucose
#15
R Carnevale, D Pastori, C Nocella, V Cammisotto, F Baratta, M Del Ben, F Angelico, S Sciarretta, S Bartimoccia, M Novo, G Targher, F Violi
BACKGROUND AND AIM: Impaired fasting glucose (IFG) is associated with an increased risk of cardiovascular disease but the underlying mechanisms are still unclear. Aim of the study was to investigate the interplay between platelet activation, lipopolysaccharides (LPS) and markers of oxidative stress in patients with IFG and control subjects. METHODS AND RESULTS: We performed a cross-sectional study including 35 patients with IFG and 35 control subjects who were well comparable for age, sex, body mass index and smoking history...
October 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28725447/anti-saccharomyces-cerevisiae-antibodies-asca-are-associated-with-body-fat-mass-and-systemic-inflammation-but-not-with-dietary-yeast-consumption-a-cross-sectional-study
#16
Anne Stine Kvehaugen, Martin Aasbrenn, Per G Farup
BACKGROUND: Baker's/brewer's yeast, Saccharomyces cerevisiae, has been used as an alternative to antibiotic growth promoters to improve growth performance in animals. In humans, Saccharomyces cerevisiae is among the most commonly detected fungi in fecal samples and likely originates from food. Recently, an association between anti-Saccharomyces cerevisiae antibodies (ASCA) and obesity in humans was suggested, but the cause of the elevated ASCA levels is not clear. Our aim was to study ASCA in morbidly obese subjects and explore potential associations with anthropometrics, diet, co-morbidities and biomarkers of inflammation and gut permeability...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28678609/randomized-controlled-trial-evaluating-the-effect-of-multi-strain-probiotic-on-the-mucosal-microbiota-in-canine-idiopathic-inflammatory-bowel-disease
#17
Robin White, Todd Atherly, Blake Guard, Giacomo Rossi, Chong Wang, Curtis Mosher, Craig Webb, Steve Hill, Mark Ackermann, Peter Sciabarra, Karin Allenspach, Jan Suchodolski, Albert E Jergens
The intestinal microbiota is increasingly linked to the pathogenesis of idiopathic inflammatory bowel disease (IBD) in dogs. While studies have reported alterations in fecal (luminal) microbial populations, only limited information is available about the mucosal microbiota of IBD dogs at diagnosis and following medical therapy. Our aim was to characterize the mucosal microbiota and determine the clinical, microbiological, and mucosal homeostatic effects of probiotic treatment in dogs with IBD. Thirty four IBD dogs were randomized to receive standard therapy (ST = diet + prednisone) with or without probiotic...
September 3, 2017: Gut Microbes
https://www.readbyqxmd.com/read/28676292/intestinal-permeability-biomarker-zonulin-is-elevated-in-healthy-aging
#18
YanFei Qi, Ruby Goel, Seungbum Kim, Elaine M Richards, Christy S Carter, Carl J Pepine, Mohan K Raizada, Thomas W Buford
INTRODUCTION: Increased gut permeability ("leaky gut") has been proposed as a potential contributor to age-related inflammation and gut dysbiosis. However, information on the relationship between a leaky gut and inflammation and physical frailty during aging are limited. OBJECTIVE: To investigate the hypothesis that an aging-associated leaky gut is linked to the age-related inflammation and frailty. METHODS: Two cohorts of healthy adults were studied: young (18-30 years old, n = 19) and older (≥70 years old, n = 18)...
September 1, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28641303/microrna-122a-regulates-zonulin-by-targeting-egfr-in-intestinal-epithelial-dysfunction
#19
Bin Zhang, Yinghai Tian, Ping Jiang, Yanqiong Jiang, Chao Li, Ting Liu, Rujian Zhou, Ning Yang, Xinke Zhou, Zhihua Liu
BACKGROUND/AIMS: This study aimed to investigate the role of microRNA (miR)-122a in regulating zonulin during the modulation of intestinal barrier. METHODS: Zonulin proteins and their target gene expression were analyzed in miR-122a-overexpressing cell lines and in the target gene of epidermal growth factor receptor (EGFR). An mmu-miR-122a intestinal epithelial conditional transgenic (miR-122a-TG) mouse model was established to investigate EGFR and zonulin expression...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28624097/serum-zonulin-gut-permeability-and-the-pathogenesis-of-autism-spectrum-disorders-cause-effect-or-an-epiphenomenon
#20
EDITORIAL
Alessio Fasano, Ivor Hill
No abstract text is available yet for this article.
September 2017: Journal of Pediatrics
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