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https://www.readbyqxmd.com/read/28400083/proposal-for-an-anti-tnf-exit-strategy-based-on-trough-serum-level
#1
Ulf Helwig, Frederik Lutter, Nadine Koppka, Stefan Schreiber
BACKGROUND AND AIMS: The aim of the study was to evaluate, if the strategy to stop anti-TNF treatment after determination of low trough serum levels and exclusion of inflammation is associated with lower relapse rates. METHODS: Since 2013 we followed an exit strategy in patients treated with anti-TNF treatment for inflammatory bowel disease based on trough serum levels. The relapse rates were observed prospectively, data analysis was performed in a retrospective manner of the collected clinical data...
April 8, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28384209/analyses-of-the-probiotic-property-and-stress-resistance-related-genes-of-lactococcus-lactis-subsp-lactis-ncdo-2118-through-comparative-genomics-and-in-vitro-assays
#2
Letícia C Oliveira, Tessália D L Saraiva, Wanderson M Silva, Ulisses P Pereira, Bruno C Campos, Leandro J Benevides, Flávia S Rocha, Henrique C P Figueiredo, Vasco Azevedo, Siomar C Soares
Lactococcus lactis subsp. lactis NCDO 2118 was recently reported to alleviate colitis symptoms via its anti-inflammatory and immunomodulatory activities, which are exerted by exported proteins that are not produced by L. lactis subsp. lactis IL1403. Here, we used in vitro and in silico approaches to characterize the genomic structure, the safety aspects, and the immunomodulatory activity of this strain. Through comparative genomics, we identified genomic islands, phage regions, bile salt and acid stress resistance genes, bacteriocins, adhesion-related and antibiotic resistance genes, and genes encoding proteins that are putatively secreted, expressed in vitro and absent from IL1403...
2017: PloS One
https://www.readbyqxmd.com/read/28360900/oral-immunization-with-recombinant-lactobacillus-acidophilus-expressing-espa-tir-m-confers-protection-against-enterohemorrhagic-escherichia-coli-o157-h7-challenge-in-mice
#3
Ruqin Lin, Yiduo Zhang, Beiguo Long, Yawen Li, Yuhua Wu, Siqin Duan, Bo Zhu, Xianbo Wu, Hongying Fan
Enterohemorrhagic Escherichia coli O157:H7 (EHEC O157:H7) causes hemorrhagic colitis and the formation of characteristic attaching and effacing (A/E) lesions in humans. Given the severe sequelae of EHEC O157:H7 infection, it is critical to develop effective vaccines for human use. However, for achieving this goal many hurdles need to be addressed, such as the type or subset of antigens, adjuvant, and the delivery route. We developed a candidate vaccine by inserting the bivalent antigen espA-Tir-M composed of espA and the Tir central domain into Lactobacillus acidophilus...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28359542/food-avoidance-in-patients-with-inflammatory-bowel-disease-what-when-and-who
#4
Fanny Bergeron, Mickael Bouin, Louise D'Aoust, Michel Lemoyne, Nancy Presse
BACKGROUND & AIMS: Patients with inflammatory bowel diseases avoid a variety of foods. However, it remains unclear how this behavior varies across patients. This cross-sectional study investigated how the food avoidance pattern in inflammatory bowel disease varies according to disease's activity, disease's subtype, Crohn's location, and prior history of bowel resection, strictures, and fistulae. METHODS: Outpatients with Crohn's disease (n = 173) and ulcerative colitis (n = 72) reported which food they avoid when they perceive they are in remission or in active disease using a list of 82 food items classified in 10 categories...
March 15, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28344807/ipilimumab-induced-thrombotic-thrombocytopenic-purpura-ttp
#5
Jeanelle King, Javier de la Cruz, Jose Lutzky
BACKGROUND: CTLA-4 (Cytotoxic T-lymphocyte-associated protein 4) was the first immune checkpoint receptor clinically targeted for use in cancer treatment. It is expressed exclusively on T-cells where its primary role is to regulate the amplitude of the early stages of T-cell activation.1 Ipilimumab, a CTLA-4 blocking antibody, has been widely used for the treatment of patients with high risk and metastatic melanoma. Given its mechanism of action and consequent immune activation, the side effect profile of this drug greatly differs from that of standard cytotoxic chemotherapy...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28321169/inflammatory-bowel-disease-an-evaluation-of-health-information-on-the-internet
#6
Samy A Azer, Thekra I AlOlayan, Malak A AlGhamdi, Malak A AlSanea
AIM: To evaluate the quality and accuracy of websites written to the public on inflammatory bowel disease (IBD) (Crohn's disease and ulcerative colitis) and assess their readability level. METHODS: Google™, Bing™, and Yahoo™ search engines were searched independently by three researchers in December 2014. Only English-language websites were selected on the basis of predetermined inclusion and exclusion criteria. Researchers independently evaluated the quality of each website by using the DISCERN and the HONcode instruments...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28237189/ct-for-acute-nontraumatic-abdominal-pain-is-oral-contrast-really-required
#7
Rivka Kessner, Sophie Barnes, Pinchas Halpern, Vadim Makrin, Arye Blachar
RATIONALE AND OBJECTIVES: This study aims to compare the diagnostic performance of abdominal computed tomography (CT) performed with and without oral contrast in patients presenting to the emergency department (ED) with acute nontraumatic abdominal pain. MATERIALS AND METHODS: Between December 2013 and December 2014, 348 adult patients presenting to the ED of a large tertiary medical center with nontraumatic abdominal pain were evaluated. Exclusion criteria for the study were history of inflammatory bowel disease, recent abdominal operation and suspected renal colic, abdominal aortic aneurysm rupture, or intestinal obstruction...
February 22, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28168885/methylnaltrexone-versus-naloxone-for-opioid-induced-constipation-in-the-medical-intensive-care-unit
#8
Cristian Merchan, Diana Altshuler, John Papadopoulos
BACKGROUND: Opioid-induced constipation (OIC) is common in critically ill patients; it leads to complications that can increase hospital stay and, rarely, bowel perforation. Opioid antagonists are considered a logical approach to treat OIC; however, the agent of choice has yet to be determined. OBJECTIVE: To assess the effectiveness and safety of enteral naloxone (NTX) versus subcutaneous methylnaltrexone (MNTX) for the treatment of OIC in the medical intensive care unit...
March 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28131521/espen-guideline-clinical-nutrition-in-inflammatory-bowel-disease
#9
Alastair Forbes, Johanna Escher, Xavier Hébuterne, Stanisław Kłęk, Zeljko Krznaric, Stéphane Schneider, Raanan Shamir, Kalina Stardelova, Nicolette Wierdsma, Anthony E Wiskin, Stephan C Bischoff
INTRODUCTION: The ESPEN guideline presents a multidisciplinary focus on clinical nutrition in inflammatory bowel disease (IBD). METHODOLOGY: The guideline is based on extensive systematic review of the literature, but relies on expert opinion when objective data were lacking or inconclusive. The conclusions and 64 recommendations have been subject to full peer review and a Delphi process in which uniformly positive responses (agree or strongly agree) were required...
April 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28101306/essential-role-of-small-bowel-capsule-endoscopy-in-reclassification-of-colonic-inflammatory-bowel-disease-type-unclassified
#10
Sara Monteiro, Francisca Dias de Castro, Pedro Boal Carvalho, Bruno Rosa, Maria João Moreira, Rolando Pinho, Miguel Mascarenhas Saraiva, José Cotter
AIM: To evaluate the role of small bowel capsule endoscopy (SBCE) on the reclassification of colonic inflammatory bowel disease type unclassified (IBDU). METHODS: We performed a multicenter, retrospective study including patients with IBDU undergoing SBCE, between 2002 and 2014. SBCE studies were reviewed and the inflammatory activity was evaluated by determining the Lewis score (LS). Inflammatory activity was considered significant and consistent with Crohn's disease (CD) when the LS ≥ 135...
January 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28092152/issues-in-nutrition-dietary-considerations-in-select-chronic-conditions
#11
Margaret E Thompson, Mary Barth Noel
Chronic diseases that affect the gastrointestinal tract also tend to affect nutrition. The incidence of chronic liver disease is increasing. As the prevalence of obesity rises, so do the incidences of nonalcoholic fatty liver disease and nonalcoholic steatohepatitis. Patients with chronic liver disease usually have some degree of malnutrition. In the absence of encephalopathy, patients with chronic liver disease should consume more protein than that in the average diet. There is some controversy about whether diet plays a role in the development of inflammatory bowel disease...
January 2017: FP Essentials
https://www.readbyqxmd.com/read/28077249/altered-mucosal-expression-of-micrornas-in-pediatric-patients-with-inflammatory-bowel-disease
#12
Nóra Judit Béres, Zoltán Kiss, Zsófia Sztupinszki, Gábor Lendvai, András Arató, Erna Sziksz, Ádám Vannay, Attila J Szabó, Katalin Eszter Müller, Áron Cseh, Kriszta Boros, Gábor Veres
INTRODUCTION: MicroRNAs (miRs) came recently into focus as promising novel research targets offering new insights into the pathogenesis of inflammatory bowel diseases (IBD). AIMS: The aim of our study was to identify a pediatric IBD (pIBD) characteristic miR profile serving as potential Crohn's disease (CD) and ulcerative colitis (UC) specific diagnostic pattern and to further analyze the related target genes. METHODS: Small RNA sequencing was performed on inflamed and intact colonic biopsies of CD, and control patients...
April 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28018313/outer-membrane-vesicles-and-soluble-factors-released-by-probiotic-escherichia-coli-nissle-1917-and-commensal-ecor63-enhance-barrier-function-by-regulating-expression-of-tight-junction-proteins-in-intestinal-epithelial-cells
#13
Carina-Shianya Alvarez, Josefa Badia, Manel Bosch, Rosa Giménez, Laura Baldomà
The gastrointestinal epithelial layer forms a physical and biochemical barrier that maintains the segregation between host and intestinal microbiota. The integrity of this barrier is critical in maintaining homeostasis in the body and its dysfunction is linked to a variety of illnesses, especially inflammatory bowel disease. Gut microbes, and particularly probiotic bacteria, modulate the barrier integrity by reducing gut permeability and reinforcing tight junctions. Probiotic Escherichia coli Nissle 1917 (EcN) is a good colonizer of the human gut with proven therapeutic efficacy in the remission of ulcerative colitis in humans...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28018107/inter-and-intraobserver-agreement-in-computed-tomography-enterography-in-inflammatory-bowel-disease
#14
Natally Horvat, Camila Carlos Tavares, Adriana Ribas Andrade, Julia Campos Simões Cabral, Hilton Muniz Leao-Filho, Angela Hissae Motoyama Caiado, Serli Kiyomi Nakao Ueda, André Zonetti Arruda Leite, Aytan Miranda Sipahi, Manoel Souza Rocha
AIM: To evaluate intra- and interobserver agreement in imaging features in inflammatory bowel disease and comparison with fecal calprotectin (FC) levels. METHODS: Our institutional computed tomography enterography (CTE) database was retrospectively queried to identify patients who underwent CTE from January 2014 to June 2015. Patient inclusion criteria were confirmed inflammatory bowel disease (IBD) and FC collected < 4 mo after CTE without any change in clinical treatment or surgical treatment during this interval...
December 7, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28011936/the-mhc-class-ii-immunopeptidome-of-lymph-nodes-in-health-and-in-chemically-induced-colitis
#15
Tim Fugmann, Adriana Sofron, Danilo Ritz, Franziska Bootz, Dario Neri
We recently described a mass spectrometry-based methodology that enables the confident identification of hundreds of peptides bound to murine MHC class II (MHCII) molecules. In this article, we describe its application to the characterization of MHCII-bound peptides isolated from lymph nodes (LNs) of C57BL/6 mice. More than 1000 peptides could be identified in individual analyses, allowing a direct comparison of the MHCII peptidome in different types of normal LNs or in animals with colitis. The peptide length distribution and consensus sequences in axillary, brachial, inguinal, and mesenteric LNs were virtually identical, and a substantial portion of identified peptides corresponded to proteins found in all LNs...
December 23, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27959965/functional-analyses-of-the-crohn-s-disease-risk-gene-lacc1
#16
Ghazaleh Assadi, Liselotte Vesterlund, Ferdinando Bonfiglio, Luca Mazzurana, Lina Cordeddu, Danika Schepis, Jenny Mjösberg, Sabrina Ruhrmann, Alessia Fabbri, Vladana Vukojevic, Piergiorgio Percipalle, Florian A Salomons, Jurga Laurencikiene, Leif Törkvist, Jonas Halfvarson, Mauro D'Amato
BACKGROUND: Genetic variation in the Laccase (multicopper oxidoreductase) domain-containing 1 (LACC1) gene has been shown to affect the risk of Crohn's disease, leprosy and, more recently, ulcerative colitis and juvenile idiopathic arthritis. LACC1 function appears to promote fatty-acid oxidation, with concomitant inflammasome activation, reactive oxygen species production, and anti-bacterial responses in macrophages. We sought to contribute to elucidating LACC1 biological function by extensive characterization of its expression in human tissues and cells, and through preliminary analyses of the regulatory mechanisms driving such expression...
2016: PloS One
https://www.readbyqxmd.com/read/27930411/comprehensive-dna-methylation-profiling-of-inflammatory-mucosa-in-ulcerative-colitis
#17
Tomomitsu Tahara, Ichiro Hirata, Naoko Nakano, Mitsuo Nagasaka, Yoshihito Nakagawa, Tomoyuki Shibata, Naoki Ohmiya
INTRODUCTION: Aberrant DNA methylation frequently occurs in the inflammatory mucosa in ulcerative colitis (UC) and is involved in UC-related tumorigenesis. We performed comprehensive DNA methylation profiling of the promoter regions of the inflamed rectal mucosae of patients with UC. DESIGN: The methylation status of the promoter CpG islands (CGIs) of 45 cancer/inflammation or age-related candidate genes and the LINE1 repetitive element were examined in the colonic mucosae of 84 cancer-free patients with UC by bisulfite pyrosequencing...
January 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/27927968/%C3%AE-%C3%AE-t-cells-coexpressing-gut-homing-%C3%AE-4%C3%AE-7-and-%C3%AE-e-integrins-define-a-novel-subset-promoting-intestinal-inflammation
#18
Jeong-Su Do, Sohee Kim, Karen Keslar, Eunjung Jang, Emina Huang, Robert L Fairchild, Theresa T Pizarro, Booki Min
γδ T lymphocytes, dominant T cell subsets in the intestine, mediate both regulatory and pathogenic roles, yet the mechanisms underlying such opposing effects remain unclear. In this study, we identified a unique γδ T cell subset that coexpresses high levels of gut-homing integrins, CD103 and α4β7. They were exclusively found in the mesenteric lymph node after T cell-mediated colitis induction, and their appearance preceded the inflammation. Adoptive transfer of the CD103(+)α4β7(high) subsets enhanced Th1/Th17 T cell generation and accumulation in the intestine, and the disease severity...
January 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27875354/antiviral-treatment-for-colonic-cytomegalovirus-infection-in-ulcerative-colitis-patients-significantly-improved-their-surgery-free-survival
#19
Yinghong Wang, Pankaj Aggarwal, Xiuli Liu, Haiyan Lu, Lei Lian, Xianrui Wu, Shibin Guo, Nitin Aggarwal, Bret Lashner, Bo Shen
BACKGROUND: The frequency of cytomegalovirus (CMV) colitis in steroid-refractory inflammatory bowel disease has been reported to range from 15.8% to 34.0%. Infected patients are more likely to become hospitalized, have longer lengths of stay, and higher mortality rates. Current data are limited to small scale studies and showed conflicting result regarding the role of antiviral therapy. AIMS: (1) To investigate the role of antiviral treatment in ulcerative colitis (UC) patients with CMV infection...
November 21, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27868160/severe-changes-in-colon-epithelium-in-the-mecp2-null-mouse-model-of-rett-syndrome
#20
Pamela Millar-Büchner, Amber R Philp, Noemí Gutierrez, Sandra Villanueva, Bredford Kerr, Carlos A Flores
BACKGROUND: Rett syndrome is best known due to its severe and devastating symptoms in the central nervous system. It is produced by mutations affecting the Mecp2 gene that codes for a transcription factor. Nevertheless, evidence for MECP2 activity has been reported for tissues other than those of the central nervous system. Patients affected by Rett presented with intestinal affections whose origin is still not known. We have observed that the Mecp2-null mice presented with episodes of diarrhea, and decided to study the intestinal phenotype in these mice...
December 2016: Molecular and Cellular Pediatrics
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