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Dysplasia in Barrett's esophagus

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https://www.readbyqxmd.com/read/28212604/high-expression-of-claudin-2-in-esophageal-carcinoma-and-precancerous-lesions-is-significantly-associated-with-the-bile-salt-receptors-vdr-and-tgr5
#1
Sohaib Abu-Farsakh, Tongtong Wu, Amy Lalonde, Jun Sun, Zhongren Zhou
BACKGROUND: Claudins are a family of integral membrane proteins and are components of tight junctions (TJs). Many TJ proteins are known to tighten the cell structure and maintain a barrier. Claudin-2 forms gated paracellular channels and allows sodium ions and other small positively charged ions to cross between adjacent cells. Recently, we found that vitamin D receptor (VDR) enhanced Claudin-2 expression in colon and that bile salt receptors VDR and Takeda G-protein coupled receptor5 (TGR5) were highly expressed in esophageal adenocarcinoma (EAC) and precancerous lesions...
February 17, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28206968/intratumoral-lactate-metabolism-in-barrett-s-esophagus-and-adenocarcinoma
#2
Heikki Huhta, Olli Helminen, Sami Palomäki, Joonas H Kauppila, Juha Saarnio, Petri P Lehenkari, Tuomo J Karttunen
BACKGROUND: Monocarboxylate transporters (MCTs) are cell membrane proteins which transport pyruvate, lactate and ketone bodies across the plasma membrane. MCTs are activated in various cancers, but their expression in esophageal adenocarcinoma is not known. The present study was conducted to elucidate the expression of MCTs in esophageal adenocarcinoma and its precursor lesions. RESULTS: Cytoplasmic MCT1, MCT4 and MTCO1 expression linearly increased from normal epithelium to Barrett's mucosa to dysplasia and cancer...
February 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28205007/long-term-evaluation-of-biliary-reflux-after-experimental-one-anastomosis-gastric-bypass-in-rats
#3
Matthieu Bruzzi, Henri Duboc, Caroline Gronnier, Dominique Rainteau, Anne Couvelard, Maude Le Gall, André Bado, Jean-Marc Chevallier
BACKGROUND: Controversy remains regarding biliary reflux after one-anastomosis gastric bypass (OAGB). The aim of this "pilot" study was to analyze biliary reflux and its potential long-term consequences on esogastric mucosae in OAGB-operated rats. METHODS: Diet-induced obese rats were subjected to OAGB (n = 10) or sham (n = 4) surgery and followed up for 16 weeks. Evolution of weight and glucose tolerance was analyzed. Bile acid concentration measurement, histological and qRT-PCR analysis were performed in the esogastric segments...
February 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28195178/recurrence-of-barrett-s-esophagus-is-rare-following-endoscopic-eradication-therapy-coupled-with-effective-reflux-control
#4
Srinadh Komanduri, Peter J Kahrilas, Kumar Krishnan, Tim McGorisk, Kiran Bidari, David Grande, Laurie Keefer, John Pandolfino
OBJECTIVES: Recent data suggest that effective control of gastroesophageal reflux improves outcomes associated with endoscopic eradication therapy (EET) for Barrett's esophagus (BE). However, the impact of reflux control on preventing recurrent intestinal metaplasia and/or dysplasia is unclear. The aims of the study were: (a) to determine the effectiveness and durability of EET under a structured reflux management protocol and (b) to determine the impact of optimizing anti-reflux therapy on achieving complete eradication of intestinal metaplasia (CE-IM)...
February 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28190989/candidate-serum-metabolite-biomarkers-for-differentiating-gastroesophageal-reflux-disease-barrett-s-esophagus-and-high-grade-dysplasia-esophageal-adenocarcinoma
#5
Matthew F Buas, Haiwei Gu, Danijel Djukovic, Jiangjiang Zhu, Lynn Onstad, Brian J Reid, Daniel Raftery, Thomas L Vaughan
INTRODUCTION/OBJECTIVES: Incidence of esophageal adenocarcinoma (EA), an often fatal cancer, has increased sharply over recent decades. Several important risk factors (reflux, obesity, smoking) have been identified for EA and its precursor, Barrett's esophagus (BE), but a key challenge remains identifying individuals at highest risk, since most with reflux do not develop BE, and most with BE do not progress to cancer. Metabolomics represents an emerging approach for identifying novel biomarkers associated with cancer development...
March 2017: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/28188977/lack-of-incremental-effect-of-histamine-receptor-antagonists-over-proton-pump-inhibitors-on-the-risk-of-neoplastic-progression-in-patients-with-barrett-s-esophagus-a-cohort-study
#6
Prashanthi N Thota, Kaveh Hajifathalian, Tanmayee Benjamin, Ashok Runkana, Rocio Lopez, Madhusudhan R Sanaka
AIMS: Long-term acid suppression lowers the risk of progression to esophageal adenocarcinoma (EAC) in patients with Barrett's esophagus (BE). With the recent reports about harmful effects of chronic proton pump inhibitor (PPI) use, there is renewed interest about alternative methods of acid suppression. Hence, our aim was to study the effect of H2 receptor antagonists (H2RA) on the risk of progression to neoplasia in our BE cohort. METHODS: This is a retrospective analysis of prospectively collected data of patients in our BE Registry from 2002 to 2015...
February 11, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28187035/hepatocyte-antigen-expression-in-barrett-esophagus-and-associated-neoplasia
#7
Sejal S Shah, Vishal S Chandan
Hepatocyte antigen or hepatocyte paraffin 1 (Hep Par 1) is widely used as a diagnostic immunomarker for hepatocellular carcinoma. It has also been identified as a rate-limiting enzyme of the urea cycle, carbamoyl phosphate synthetase 1. Hep Par 1 has been detected in non-neoplastic small intestinal epithelium, but its expression in Barrett esophagus and its related neoplasia has not been well investigated. We immunohistochemically evaluated expression of Hep Par 1 on 75 cases of Barrett esophagus (25 cases without dysplasia, 16 cases with low-grade dysplasia, 25 cases with high-grade dysplasia, and 9 cases with intramucosal adenocarcinoma) on endoscopic biopsies and endoscopic mucosal resections...
February 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28185837/insulin-promotes-her2-signaling-activation-during-barrett-s-esophagus-carcinogenesis
#8
Diletta Arcidiacono, Alessandro Antonello, Matteo Fassan, Daniele Nucci, Tiziana Morbin, Marco Agostini, Donato Nitti, Massimo Rugge, Alfredo Alberti, Giorgio Battaglia, Stefano Realdon
BACKGROUND: Insulin-resistance and hyperinsulinemia could have a role in the growing incidence of esophageal adenocarcinoma (EAC) and its pre-cancerous lesion Barrett's Esophagus (BE). HER2 activation has also a pivotal role in EAC carcinogenesis but no data correlate these two phenomena in this disease context. AIMS: To investigate the role of hyperinsulinemia in BE-dysplasia-adenocarcinoma sequence and the possible relationship between insulin-mediated and HER2 signaling in EAC development...
January 22, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28184470/risk-of-malignant-progression-in-barrett-s-esophagus-indefinite-for-dysplasia
#9
M Ma, S Shroff, M Feldman, M DeMarshall, C Price, A Tierney, G W Falk
No abstract text is available yet for this article.
March 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28167119/endoscopic-optical-coherence-tomography-angiography-microvascular-features-associated-with-dysplasia-in-barrett-s-esophagus-a-pilot-study-with-video
#10
Hsiang-Chieh Lee, Osman O Ahsen, Kaicheng Liang, Zhao Wang, Marisa Figueiredo, Michael G Giacomelli, Benjamin Potsaid, Qin Huang, Hiroshi Mashimo, James G Fujimoto
BACKGROUND AND AIMS: Angiogenesis is associated with neoplastic progression of Barrett's esophagus (BE). Volumetric optical coherence tomography angiography (OCTA) visualizes subsurface microvasculature without exogenous contrast agents. We investigated the association of OCTA microvascular features with low-grade dysplasia (LGD) and high-grade dysplasia (HGD). METHODS: Fifty-two patients undergoing BE surveillance or endoscopic eradication therapies for dysplasia were imaged using volumetric OCTA and corresponding histological diagnoses obtained, to yield 97 data sets (non-dysplastic BE (NDBE): N=74; LGD: N=10; HGD: N=13)...
February 3, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28134635/efficacy-durability-and-safety-of-complete-endoscopic-mucosal-resection-of-barrett-esophagus-a-systematic-review-and-meta-analysis
#11
Yutaka Tomizawa, Vani J A Konda, Emmanuel Coronel, Christopher G Chapman, Uzma D Siddiqui
GOALS: To report the rate of eradication and recurrence of both neoplasia and intestinal mucosa and the rate of adverse events for complete endoscopic resection (CER) of Barrett esophagus (BE). BACKGROUND: There is limited composite data on the clinical efficacy of CER of BE with high-grade dysplasia or neoplasia. STUDY: We performed a systematic review and meta-analysis of cohort studies that reported the clinical outcome of patients with BE who underwent CER and had at least 15-month follow-up after the time of elimination of BE...
January 27, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28122386/endoscopic-management-of-barrett-s-esophagus-european-society-of-gastrointestinal-endoscopy-esge-position-statement
#12
Bas Weusten, Raf Bisschops, Emanuel Coron, Mário Dinis-Ribeiro, Jean-Marc Dumonceau, José-Miguel Esteban, Cesare Hassan, Oliver Pech, Alessandro Repici, Jacques Bergman, Massimiliano di Pietro
Current practices for the management of Barrett's esophagus (BE) vary across Europe, as several national European guidelines exist. This Position Statement from the European Society of Gastrointestinal Endoscopy (ESGE) is an attempt to homogenize recommendations and, hence, patient management according to the best scientific evidence and other considerations (e.g. health policy). A Working Group developed consensus statements, using the existing national guidelines as a starting point and considering new evidence in the literature...
February 2017: Endoscopy
https://www.readbyqxmd.com/read/28116788/columnar-islands-in-barrett-s-esophagus-do-they-impact-prague-c-m-criteria-and-dysplasia-grade
#13
Jeremy A Epstein, Hilary Cosby, Gary W Falk, Mouen A Khashab, Ralf Kiesslich, Elizabeth A Montgomery, Jean S Wang, Marcia Irene Canto
BACKGROUND AND AIM: The standard for classifying Barrett's metaplasia on endoscopy, the Prague C&M criteria, ignore all islands of metaplastic-appearing tissue. The aim of the present study was to measure the prevalence of columnar islands, quantify their impact on metaplasia extent, and determine if they harbor advanced dysplasia. METHODS: Data from two prospective patient cohorts were retrospectively analyzed. They included adults who underwent upper endoscopy to evaluate for gastroesophageal reflux disease (GERD), Barrett's esophagus (BE), dysplasia, or adenocarcinoma between 2003-2012 at tertiary care centers in the United States and Germany...
January 23, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28078459/endotherapy-in-case-of-relapse-of-neoplastic-barrett-s-esophagus-after-successful-initial-endoscopic-resection
#14
Sébastien Godat, Fabrice Caillol, Aurélie Autret, Erwan Bories, Christian Pesenti, Jean Philippe Ratone, Chiara De Cassan, Flora Poizat, Marc Giovannini
BACKGROUND: Endotherapy in cases of neoplastic Barrett esophagus (BE) relapse after successful initial endoscopic management is commonly accepted, but few studies analyze this topic and also take into account the metachronous lesions. AIMS: To evaluate the efficiency of endotherapy in the case of neoplastic BE relapse after successful complete endoscopic eradication of neoplastic BE and metaplastic BE. METHODS: Retrospective review of medical records was collected in a computerized and prospective manner between 2000 and 2015, in a single tertiary care center...
January 11, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28072858/proton-pump-inhibitors-do-not-reduce-the-risk-of-esophageal-adenocarcinoma-in-patients-with-barrett-s-esophagus-a-systematic-review-and-meta-analysis
#15
Qiang Hu, Tian-Tian Sun, Jie Hong, Jing-Yuan Fang, Hua Xiong, Stephen J Meltzer
OBJECTIVES: Proton pump inhibitors (PPIs) have been used for treatment of Barrett's esophagus (BE) for many years. However, the connection between PPIs and esophageal adenocarcinoma (EAC) in patients with BE has still been controversial. The current systematic review and meta-analysis was designed to evaluate the association between PPIs and the risk of EAC or high-grade dysplasia (HGD) in patients with BE. METHODS: A systematic literature search of studies reporting the association between PPIs and the risk of EAC and/or HGD in patients with BE was conducted in PubMed, Embase, Web of Science and the Cochrane Library...
2017: PloS One
https://www.readbyqxmd.com/read/28042239/oral-steroid-prophylaxis-is-effective-in-preventing-esophageal-strictures-after-large-endoscopic-resection
#16
Jean-Philippe Ratone, Erwan Bories, Fabrice Caillol, Christian Pesenti, Sebastien Godat, Flora Poizat, Chiara De Cassan, Marc Giovannini
BACKGROUND: Strictures are frequent complications of large endoscopic mucosal resections (EMR) and endoscopic submucosal dissections of the esophagus. Local or systemic steroid therapy has shown promise in the prevention of secondary stenosis. The aim of this study was to evaluate the safety and efficacy of systemic steroid therapy following endoscopic resection of at least hemi-circumferential esophageal mucosa. METHODS: This was a single-center retrospective study in a tertiary center...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28026198/the-importance-of-a-second-opinion-in-the-diagnosis-of-barrett-s-esophagus-a-real-life-study
#17
Vincenzo Villanacci, Marianna Salemme, Italo Stroppa, Valerio Balassone, Gabrio Bassotti
BACKGROUND: Barrett's esophagus is a precancerous lesion, and its identification with the early detection of dysplasia is of paramount importance to prevent adenocarcinoma onset. However, there is still debate on the correct pathological identification of Barrett's esophagus (and of associated dysplasia), and most studies have been conducted in an experimental setting. AIMS: To assess previous uncertain diagnoses of Barrett's (with and without dysplasia) via a second opinion of an expert pathologist in a real life setting...
December 27, 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28012849/patients-with-barrett-s-esophagus-and-confirmed-persistent-low-grade-dysplasia-at-increased-risk-for-progression-to-neoplasia
#18
Lucas C Duits, M J van der Wel, Cary C Cotton, K Nadine Phoa, Fiebo J W Ten Kate, Cees A Seldenrijk, G Johan A Offerhaus, Mike Visser, Sybren L Meijer, Rosalie C Mallant-Hent, Kausilia K Krishnadath, Roos E Pouw, Jan G P Tijssen, Nicholas J Shaheen, Jacques J G H M Bergman
BACKGROUND & AIMS: For patients with Barrett's esophagus (BE), the diagnosis of low-grade dysplasia (LGD) is subjective and reported outcomes vary. We analyzed data from a multicenter study of endoscopic therapy to identify factors associated progression to high-grade dysplasia (HGD) or esophageal adenocarcinoma (EAC) in patients with LGD of the esophagus. METHODS: We performed a retrospective analysis of data from 255 patients with a primary diagnosis of LGD (78% men; mean age, 63 years) who participated in a randomized controlled trial of surveillance vs radiofrequency ablation in Europe...
December 21, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27999692/polypoid-dysplasia-in-barrett-s-esophagus-diagnosis-management-and-very-different-outcomes-in-two-consecutive-cases
#19
Megan Murphy, Christina Tofani, Kunjal Gandhi, Anthony Infantolino
Background. Barrett's esophagus is associated with an increased risk of adenocarcinoma. Dysplasia in Barrett's esophagus is a precursor to adenocarcinoma. Rarely, dysplastic polypoid lesions are superimposed on Barrett's esophagus. Most reported cases of polypoid dysplasia in Barrett's esophagus have been advanced on presentation and treated with esophagectomy. We describe two cases of polypoid changes in Barrett's esophagus and treatment with polypectomy followed by radiofrequency ablation. Cases. A 75 yo male presented with esophageal polyps, which on biopsy showed gastric cardia/foveolar mucosa with focal intestinal metaplasia without dysplasia...
2016: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/27997963/efficacy-of-the-cryoballoon-focal-ablation-system-for-the-eradication-of-dysplastic-barrett-s-esophagus-islands
#20
Hannah T Künzli, Dirk W Schölvinck, Sybren L Meijer, Kees A Seldenrijk, Jacques G H M Bergman, Bas L A M Weusten
Background and study aim Cryoablation can be used for the treatment of Barrett's esophagus (BE). A recent dosimetry study, using the CryoBalloon Focal Ablation System (CryoBalloon), demonstrated that 10-second ablations result in complete eradication of BE. However, the efficacy of 10-second ablation in a larger cohort of patients has not been investigated, nor has the potential of precise targeting of specific areas. The aim of the study was to assess the efficacy and performance (i. e. targeting of BE islands) of a 10-second cryoablation using the CryoBalloon...
February 2017: Endoscopy
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