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https://www.readbyqxmd.com/read/27914457/tumor-necrosis-factor-and-lymphotoxin-in-regulation-of-intestinal-inflammation
#1
REVIEW
E O Gubernatorova, A V Tumanov
Ulcerative colitis and Crohn's disease are the major forms of inflammatory bowel disease. Cytokines of the tumor necrosis factor (TNF) family play an important role in the regulation of intestinal inflammation. In this review, we discuss the function of key cytokines of this family - TNF and lymphotoxin (LT) - in mucosal healing, IgA production, and in control of innate lymphoid cells (ILCs), novel regulators of mucosal homeostasis in the gut. TNF plays a central role in the pathogenesis of inflammatory bowel diseases (IBD)...
November 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27902515/comparison-of-health-related-quality-of-life-and-disability-in-ulcerative-colitis-patients-following-restorative-proctocolectomy-with-ileal-pouch-anal-anastomosis-versus-anti-tumor-necrosis-factor-therapy
#2
Sara van Gennep, Saloomeh Sahami, Christianne J Buskens, Gijs R van den Brink, Cyriel Y Ponsioen, André D'Hoore, Anthony de Buck van Overstraeten, Gert van Assche, Marc Ferrante, Séverine Vermeire, Willem A Bemelman, Geert R A M D'Haens, Mark Löwenberg
BACKGROUND AND AIMS: Health-related quality of life (HRQL) and disability were compared in ulcerative colitis (UC) patients who underwent restorative proctocolectomy versus patients who received treatment with anti-tumor necrosis factor (anti-TNF) agents. PATIENTS AND METHODS: UC patients who underwent restorative proctocolectomy or started anti-TNF treatment between January 2010 and January 2015 were included at two tertiary referral centers. A matched cohort was created using propensity score matching for the covariates disease duration, Montreal classification, age, and sex...
November 29, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27895399/altered-pattern-of-tumor-necrosis-factor-alpha-production-in-peripheral-blood-monocytes-from-crohn-s-disease
#3
Claudia Loganes, Alessia Pin, Samuele Naviglio, Martina Girardelli, Anna Monica Bianco, Stefano Martelossi, Alberto Tommasini, Elisa Piscianz
AIM: To evaluate the inflammatory state in Crohn's disease (CD) patients and correlate it with genetic background and microbial spreading. METHODS: By means of flow cytometry, production of tumor necrosis factor-alpha (TNF-α) was measured in peripheral blood monocytes from patients suffering from CD, ulcerative colitis (UC) and in healthy subjects after stimulation of the NOD2 and TLR pathways. CD patients were genotyped for the three most common NOD2 variants (R702W, G908R and L1007Pfs*2) and basal production of TNF-α was correlated to NOD2 genotype...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27895398/dysregulation-of-innate-immunity-in-ulcerative-colitis-patients-who-fail-anti-tumor-necrosis-factor-therapy
#4
Angela C Baird, Dominic Mallon, Graham Radford-Smith, Julien Boyer, Thierry Piche, Susan L Prescott, Ian C Lawrance, Meri K Tulic
AIM: To study the innate immune function in ulcerative colitis (UC) patients who fail to respond to anti-tumor necrosis factor (TNF) therapy. METHODS: Effects of anti-TNF therapy, inflammation and medications on innate immune function were assessed by measuring peripheral blood mononuclear cell (PBMC) cytokine expression from 18 inflammatory bowel disease patients pre- and 3 mo post-anti-TNF therapy. Toll-like receptor (TLR) expression and cytokine production post TLR stimulation was assessed in UC "responders" (n = 12) and "non-responders" (n = 12) and compared to healthy controls (n = 12)...
November 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27893428/microrna-206-is-involved-in-the-pathogenesis-of-ulcerative-colitis-via-regulation-of-adenosine-a3-receptor
#5
Weiyun Wu, Yanting He, Xiao Feng, Shicai Ye, Hao Wang, Wenkai Tan, Caiyuan Yu, Juxiang Hu, Rong Zheng, Yu Zhou
Increasing evidence suggests that miRNAs are widely dysregulated in ulcerative colitis (UC), potentially affecting UC pathogenesis, diagnosis, and therapy. microRNA (miR) -206 has been reported to be upregulated in UC; however, its function and role in UC remain unknown. Here, we elucidate the function of miR-206 in the pathogenesis of UC. In patients with active-UC, miR-206 and adenosine A3 receptor (A3AR) levels were significantly upregulated and downregulated, respectively, and were inversely correlated...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27890854/association-between-low-trough-levels-of-vedolizumab-during-induction-therapy-for-inflammatory-bowel-diseaseswith-need-for-additional-doses-within-6-months
#6
Nicolas Williet, Gilles Boschetti, Marion Fovet, Thomas Di Bernado, Pierre Claudez, Emilie Del Tedesco, Camille Jarlot, Leslie Rinaldi, Anne Berger, Jean-Marc Phelip, Bernard Flourie, Stéphane Nancey, Stéphane Paul, Xavier Roblin
BACKGROUND & AIMS: We investigated whether serum trough levels of vedolizumab, a humanized monoclonal antibody against integrin alpha 4 beta 7, during the induction phase of treatment can determine whether patients will need additional doses (optimization of therapy) within the first 6 months. METHODS: We conducted an observational study of 47 consecutive patients with Crohn's disease (CD; n=31) or ulcerative colitis (UC; n=16) who had not responded to 2 previous treatment regimens with antagonists of tumor necrosis factor and were starting therapy with vedolizumab at 2 hospitals in France, from June 2014 through April 2016...
November 24, 2016: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27887202/serological-markers-in-diagnosis-of-pediatric-inflammatory-bowel-disease-and-as-predictors-for-early-tumor-necrosis-factor-blocker-therapy
#7
Christine Olbjørn, Milada Cvancarova Småstuen, Espen Thiis-Evensen, Britt Nakstad, Morten Harald Vatn, Gøri Perminow
OBJECTIVE: To describe the prevalence of serological markers in newly diagnosed treatment-naïve pediatric inflammatory bowel disease (IBD), their utility in differentiating Crohn's disease (CD), ulcerative colitis (UC) and symptomatic non-IBD patients and whether serological markers are associated with early TNF blocker treatment. MATERIAL AND METHODS: Ninety-six children and adolescents <18 years, 58 with IBD and 38 symptomatic non-IBD controls were included...
November 25, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27866814/predictors-of-tissue-healing-in-ulcerative-colitis-patients-treated-with-anti-tnf
#8
Nikos Viazis, Marios Giakoumis, Giorgos Bamias, Dimitris Goukos, Theodoros Koukouratos, Konstantina Katopodi, Pantelis Karatzas, Christos Triantos, Chrisostomos Tsolias, Georgios Theocharis, George L Daikos, Spyros D Ladas, Dimitrios G Karamanolis, Gerasimos J Mantzaris
AIM: To identify factors predicting mucosal healing in ulcerative colitis patients treated with anti-TNFα agents with or without azathioprine. METHODS: In a prospective, multicenter, one-year study biologic naïve patients aged 25-65 years, with corticosteroid-dependent or refractory colitis received combination treatment with anti-TNFα and azathioprine for 6 months followed by anti-TNFα monotherapy. Patients who denied combination therapy or were outside this age range received anti-TNFα monotherapy (controls)...
October 20, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/27866429/cd99-refers-to-the-activity-of-inflammatory-bowel-disease
#9
Guangxi Zhou, Wenjing Yang, Lin Yu, Tianming Yu, Zhanju Liu
BACKGROUND: Inflammatory bowel disease (IBD), composed of Crohn's disease (CD) and ulcerative colitis (UC), is an inflammatory autoimmune disease. CD99 has been reported to participate in migration of leukocytes and T cell activation. However, the roles of CD99 in IBD are obscure. MATERIALS AND METHODS: CD99 expression was examined in peripheral blood mononuclear cells (PBMCs) and inflamed mucosa from IBD patients by qRT-PCR. Serum TNF-α and IL-17A levels were detected by ELISA...
November 21, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27862107/systematic-review-with-meta-analysis-comparative-efficacy-of-immunosuppressants-and-biologics-for-reducing-hospitalisation-and-surgery-in-crohn-s-disease-and-ulcerative-colitis
#10
REVIEW
E J Mao, G S Hazlewood, G G Kaplan, L Peyrin-Biroulet, A N Ananthakrishnan
INTRODUCTION: Crohn's disease (CD) and ulcerative colitis (UC) have a progressive course leading to hospitalisation and surgery. The ability of existing therapies to alter disease course is not clearly defined. AIM: To investigate the comparative efficacy of currently available inflammatory bowel disease (IBD) therapies to reduce hospitalisation and surgery. METHODS: We conducted a systematic review in MEDLINE/PubMed for randomised controlled trials (RCT) published between January 1980 and May 2016 examining efficacy of biological or immunomodulator therapy in IBD...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27859410/effects-of-vedolizumab-on-health-related-quality-of-life-in-patients-with-ulcerative-colitis-results-from-the-randomised-gemini-1-trial
#11
B G Feagan, H Patel, J-F Colombel, D T Rubin, A James, R Mody, K Lasch
BACKGROUND: Health-related quality of life (HRQL) is often diminished in patients with ulcerative colitis. AIM: To evaluate the effects of vedolizumab on HRQL in patients with ulcerative colitis. METHODS: Using maintenance phase data from the GEMINI 1 study, an analysis of covariance model was used to calculate mean differences between the vedolizumab and placebo groups in changes from baseline to week 52 for 3 HRQL instruments: The Inflammatory Bowel Disease Questionnaire (IBDQ), 36-Item Short Form Health Survey (SF-36), and EQ-5D...
November 17, 2016: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27843005/zanthoxylum-bungeanum-pericarp-extract-prevents-dextran-sulfate-sodium-induced-experimental-colitis-in-mice-via-the-regulation-of-tlr4-and-tlr4-related-signaling-pathways
#12
Zecai Zhang, Jiuxi Liu, Peng Shen, Yongguo Cao, Xiaojie Lu, Xuejiao Gao, Yunhe Fu, Bo Liu, Naisheng Zhang
Zanthoxylum bungeanum, which belongs to the Zanthoxylum genus of the Rutaceae family, is now wildly distributed in most parts of China and some Southeast Asian countries. The pericarp of Zanthoxylum bungeanum has been known to exhibit antibacterial, anti-inflammatory and other important therapeutic activities. The purpose of this study was to investigate the effects and mechanisms of Zanthoxylum bungeanum pericarp extract (ZBE) on DSS-induced experimental colitis in mice. The results demonstrated that the major flavonoid composition of ZBE includes rutin (32...
November 11, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27822176/ferulic-acid-ameliorates-tnbs-induced-ulcerative-colitis-through-modulation-of-cytokines-oxidative-stress-inos-cox-2-and-apoptosis-in-laboratory-rats
#13
Smeeta S Sadar, Niraj S Vyawahare, Subhash L Bodhankar
Ulcerative colitis (UC) is a chronic immune-inflammatory disorder characterized by oxido-nitrosative stress, the release of pro-inflammatory cytokines and apoptosis. Ferulic acid (FA), a phenolic compound is considered to possess potent antioxidant, anti-apoptotic and anti-inflammatory activities. The aim is to evaluate possible mechanism of action of FA against trinitrobenzensulfonic acid (TNBS) induced ulcerative colitis (UC) in rats. UC was induced in Sprague-Dawley rats (150-200 g) by intrarectal administration of TNBS (100 mg/kg)...
2016: EXCLI journal
https://www.readbyqxmd.com/read/27816496/advanced-endoscopy-imaging-in-inflammatory-bowel-diseases
#14
REVIEW
Ralf Kiesslich, Markus F Neurath
BACKGROUND AND AIMS: Rapid assessment of mucosal inflammation is of crucial importance for the initial diagnosis and the assessment of mucosal healing in inflammatory bowel diseases (IBD). Moreover, the identification of intraepithelial neoplasias in IBD is of key relevance for clinical management. Here, we systematically analyzed the utility of advanced endoscopic imaging techniques for optimized diagnosis in IBD. METHODS: PubMed/Medline, Web of Knowledge and Cochrane library were searched twice for diagnostic studies on advanced endoscopic imaging in IBD...
November 2, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27807000/randomized-double-blind-placebo-controlled-trial-of-ccr9-targeted-leukapheresis-treatment-of-ulcerative-colitis-patients
#15
Michael Eberhardson, Per Karlén, Ludvig Linton, Petra Jones, Annelie Lindberg, Martina Jones Kostalla, Emma Lindh, Anders Odén, Hans Glise, Ola Winqvist
BACKGROUND AND AIMS: Ulcerative colitis patients display increased number of circulating pro-inflammatory HLA-DR(hi) monocytes expressing high levels of the gut homing chemokine receptor CCR9 and TNF-α. The aim of this first-in-man double blind randomized placebo controlled trial was to evaluate selective removal of circulating CCR9-expressing monocytes by leukapheresis in patients with moderate to severe ulcerative colitis with regards to safety, tolerability and immunological response...
November 2, 2016: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/27801751/extraintestinal-manifestations-of-pediatric-inflammatory-bowel-disease-prevalence-presentation-and-anti-tnf-treatment
#16
Thomas Greuter, Fabio Bertoldo, Roman Rechner, Alex Straumann, Luc Biedermann, Jonas Zeitz, Benjamin Misselwitz, Michael Scharl, Gerhard Rogler, Ekaterina Safroneeva, Raja A Ali, Christian Braegger, Klaas Heyland, Pascal Mueller, Andreas Nydegger, Laetitia-Marie Petit, Susanne Schibli, Raoul I Furlano, Johannes Spalinger, Michela Schäppi, Samuel Zamora, Florian Froehlich, Denise Herzog, Alain M Schoepfer, Stephan R Vavricka
BACKGROUND: There is a paucity of data on extraintestinal manifestations (EIM) and their treatment in pediatric patients with inflammatory bowel disease (IBD). METHODS: Since 2008, the Pediatric Swiss IBD Cohort Study has collected data on the pediatric IBD population in Switzerland. Data on 329 patients were analyzed retrospectively. RESULTS: 55 patients (16.7%) suffered from 1-4 EIM (39 Crohn's disease, 12 ulcerative colitis and 4 IBD-Unclassified (IBD-U) patients)...
October 31, 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27799888/biologics-for-the-treatment-of-pyoderma-gangrenosum-in-ulcerative-colitis
#17
K Arivarasan, Vaishali Bhardwaj, Sukrit Sud, Sanjeev Sachdeva, Amarender Singh Puri
Pyoderma gangrenosum (PG) is an uncommon extra-intestinal manifestation of inflammatory bowel disease (IBD). Despite limited published literature, biologics have caused a paradigm shift in the management of this difficult-to-treat skin condition. The clinical data and outcomes of three patients with active ulcerative colitis and concurrent PG treated with biologics (infliximab two and adalimumab one) are reviewed in this report. Biologics were added because of the sub-optimal response of the colonic symptoms and skin lesions to parenteral hydrocortisone therapy...
October 2016: Intestinal Research
https://www.readbyqxmd.com/read/27782738/interleukin-10-is-differentially-expressed-in-the-small-intestine-and-the-colon-experiencing-chronic-inflammation-and-ulcerative-colitis-induced-by-dextran-sodium-sulfate-in-young-pigs
#18
D Lackeyram, D Young, C J Kim, C Yang, T L Archbold, Y Mine, M Z Fan
Intestinal inflammation induced with dextran sodium sulfate (DSS) is used to study acute or chronic ulcerative colitis in animal models. Decreased gut tissue anti-inflammatory cytokine IL-10 concentration and mRNA abundance are associated with the development of chronic bowel inflammation. Twelve piglets of 3 days old were fitted with an intragastric catheter and randomly allocated into control and DSS groups by administrating either sterile saline or 1.25 g of DSS/kg body weight (BW) in saline per day, respectively, for 10 days...
October 26, 2016: Physiological Research
https://www.readbyqxmd.com/read/27781286/therapeutic-management-of-inflammatory-bowel-disease-in-real-life-practice-in-the-current-era-of-anti-tnf-agents-analysis-of-the-french-administrative-health-databases-2009-2014
#19
J Kirchgesner, M Lemaitre, A Rudnichi, A Racine, M Zureik, F Carbonnel, R Dray-Spira
BACKGROUND: Management of inflammatory bowel disease (IBD) has evolved in the last decade. AIM: To assess IBD therapeutic management, including treatment withdrawal and early treatment use in the current era of anti-TNF agents (anti-TNFs). METHODS: All patients affiliated to the French national health insurance diagnosed with IBD were included from 2009 to 2013 and followed up until 31 December 2014. Medication uses, treatment sequences after introduction of thiopurine or anti-TNF monotherapies or both (combination therapy), surgical procedures and hospitalisations were assessed...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27779898/reflections-about-inflammatory-bowel-disease-and-vitamins-a-and-d
#20
Sandra Maria Barbalho, Marcelo Dib Bechara, Ricardo de Alvares Goulart, Karina Quesada, Rodrigo Galhardi Gasparini, Antonely de Cássio Alves de Carvalho, Adriana Maria Ragassi Fiorini
Ulcerative colitis and Crohn's disease are two major forms of the inflammatory bowel diseases (IBDs). Vitamin A (VA) and vitamin D (VD) may be associated with reduction in inflammation in these disorders. The aim of this review was to show the current evidence that may associate VA and VD with IBDs. Data linking VA, VD, and IBDs were studied. Both VA and VD may be related to the immune system in different manners. The active form of VA, retinoic acid, may be related to the growth factor-β and release of interleukin-10 (IL-10), thus involved with the resolution of the inflammation...
October 25, 2016: Journal of Medicinal Food
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