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Intestinal metaplasia

Liming Zhang, Yulan Liu, Peng You, Guijian Feng
BACKGROUND: Additional data on the incidence of gastric neoplasia in the Chinese atrophic gastritis (AG) population during long-term follow-up are needed and the influence of the endoscopic surveillance interval on gastric neoplasia occurrence remains unknown. AIMS: Retrospectively investigated the occurrence of gastric cancer (GC) and precancerous lesions in AG patients during long-term follow-up and assessed risk factors, such as the endoscopic surveillance interval for the development of gastric neoplasia...
June 16, 2018: Scandinavian Journal of Gastroenterology
Edith Lahner, Marilia Carabotti, Bruno Annibale
Helicobacter pylori (Hp) is a major human pathogen causing chronic, progressive gastric mucosal damage and is linked to gastric atrophy and cancer. Hp-positive individuals constitute the major reservoir for transmission of infection. There is no ideal treatment for Hp. Hp infection is not cured by a single antibiotic, and sometimes, a combined treatment with three or more antibiotics is ineffective. Atrophic gastritis (AG) is a chronic disease whose main features are atrophy and/or intestinal metaplasia of the gastric glands, which arise from long-standing Hp infection...
June 14, 2018: World Journal of Gastroenterology: WJG
Mimi C Tan, Kavin A Kanthasamy, Allison G Yeh, Daniel Kil, Lisa Pompeii, Xiaoying Yu, Hashem B El-Serag, Aaron P Thrift
BACKGROUND & AIMS: Radiofrequency ablation (RFA) is effective treatment for Barrett's esophagus (BE). However, some patients have recurrence after complete eradication of intestinal metaplasia (CEIM). We investigated the incidence of and factors associated with BE recurrence, with or without neoplasia, after RFA and CEIM using data from the national Veterans Affairs (VA) healthcare system. METHODS: We performed a retrospective cohort study of Veterans with BE treated by RFA from 2005 through 2016 with follow-up endoscopy...
June 11, 2018: Clinical Gastroenterology and Hepatology
Maham Hayat, Sultan Mahmood, John T Maple
A 62-year-old male with long-standing esophageal reflux underwent endoscopy at an outside institution that reported multiple polypoid lesions in upper esophagus and a small focal area of nodular mucosa at the gastroesophageal junction(GEJ). Biopsies of the proximal esophageal polyps demonstrated hyperplastic mucosa with ulceration, reactive epithelial changes, and focal intestinal metaplasia. Biopsies from the nodular GEJ mucosa were described as Barrett's esophagus with low grade dysplasia. An upper endoscopy performed at our medical center found multiple semi-pedunculated esophageal polyps between 18-24 cm from the incisors (Figure A)...
June 11, 2018: Clinical Gastroenterology and Hepatology
Tarek Sawas, Prasad G Iyer, Mouaz Alsawas, Cary C Cotton, Cadman L Leggett, M Hassan Murad, Kenneth K Wang, Nicholas J Shaheen, David A Katzka
BACKGROUND: Endoscopic eradication therapy (EET) is highly effective in treating dysplastic Barrett's esophagus (BE). Current surveillance intervals after complete remission of intestinal metaplasia (CRIM) are based on expert opinion. We performed a meta-analysis to compare BE detection in the first year to the subsequent ones METHODS: We searched MEDLINE, EMBASE, Scopus and Cochrane Central Register of Controlled Trials through 1 August 2017 for studies reporting IM and neoplasia detection after CRIM...
June 14, 2018: American Journal of Gastroenterology
Wouter J den Hollander, I Lisanne Holster, Caroline M den Hoed, Lisette G Capelle, Tjon J Tang, Marie-Paule Anten, Ingrid Prytz-Berset, Ellen M Witteman, Frank Ter Borg, Gijsbert den Hartog, Marco J Bruno, Maikel Petrus Peppelenbosch, Wilco Lesterhuis, Michael Doukas, Ernst J Kuipers, Manon C W Spaander
OBJECTIVE: International guidelines recommend endoscopic surveillance of premalignant gastric lesions. However, the diagnostic yield and preventive effect require further study. We therefore aimed to assess the incidence of neoplastic progression and to assess the ability of various tests to identify patients most at risk for progression. DESIGN: Patients from the Netherlands and Norway with a previous diagnosis of atrophic gastritis (AG), intestinal metaplasia (IM) or dysplasia were offered endoscopic surveillance...
June 6, 2018: Gut
Mustafa Kaplan, Ihsan Ates, Mahmut Yuksel, Mehmet F Arikan, Gulden Aydog, Nesrin Turhan, Volkan Gökbulut, Ertugrul Kayacetin
Background/Aim: The aim of this study was to investigate the role of the platelet-to-lymphocyte ratio (PLR)-neutrophil-to-lymphocyte ratio (NLR) combination, in the prediction of the presence of Helicobacter pylori (HP) and its associated complications in the gastrointestinal system. Patients and Methods: In all, 1289 patients who underwent esophagogastroduodenoscopy and biopsy for HP were included in the study. Results: The ratio of patients with moderate and severe chronic gastritis was higher in HP (+) group than HP (-) group...
June 5, 2018: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
Sandra Mabel Camacho-Gomez, Anas Bernieh, Ali G Saad, Neelesh Ajit Tipnis
In the pediatric population, Gastric Intestinal Metaplasia (GIM) is a finding with unknown frequency and, more importantly, unknown clinical implications. The relationship between Helicobacter pylori (HP) infection and GIM is well documented, as well as an association between duodenogastric reflux and GIM. We present two cases of pediatric patients with GIM along with a review of the literature. The diagnosis of GIM may have adverse clinical implications and should be made with caution in a child. The association of GIM and adenoma/dysplasia and carcinoma is rarely seen in children, primarily because the time required for these to develop takes the individual into adulthood...
2018: Case Reports in Gastrointestinal Medicine
Haining Zhou, Zhen Ni, Ting Li, Linna Su, Lianfeng Zhang, Na Liu, Yongquan Shi
Gastric intestinal metaplasia (IM) induced by bile acid is a precancerous lesion of gastric adenocarcinoma and is associated with the expression of caudal-related homeobox 2 (CDX2). In the present study, the role of farnesoid X receptor (FXR) on the regulation of CDX2 in gastric cells was investigated and the underlying molecular mechanisms were examined. Human gastric cell lines were treated with chenodeoxycholic acid (CDCA) or FXR agonist GW4064. Cells were treated with CDCA in the presence or absence of the FXR antagonist or FXR siRNA transfection...
May 2018: Oncology Letters
Yasuaki Ishii, Wataru Shibata, Makoto Sugimori, Yoshihiro Kaneta, Masatomo Kanno, Takeshi Sato, Soichiro Sue, Eri Kameta, Hiroaki Kaneko, Kuniyasu Irie, Tomohiko Sasaki, Masaaki Kondo, Shin Maeda
Background/Aim: Although IL-6-mediated activation of the signal transduction and activator of transcription 3 (STAT3) axis is involved in inflammation and cancer, the role of STAT3 in Helicobacter -associated gastric inflammation and carcinogenesis is unclear. This study investigated the role of STAT3 in gastric inflammation and carcinogenesis and examined the molecular mechanism of Helicobacter -induced gastric phenotypes. Methods: To evaluate the contribution of STAT3 to gastric inflammation and carcinogenesis, we used wild-type (WT) and gastric epithelial conditional Stat3 -knockout ( Stat3Δgec ) mice...
2018: Gastroenterology Research and Practice
Khaldoon Aljerian
Laparoscopic sleeve gastrectomy is a bariatric surgical procedure performed in patients with morbid obesity that provides the opportunity to review histopathological changes. The aim of this study was to characterize resected gastric specimens obtained from a Saudi patient population at a single center for a prospectively maintained database of laparoscopic sleeve gastrectomy cases. The histopathological findings from all patients undergoing laparoscopic sleeve gastrectomies at King Khalid University Hospital between 2010 and 2015 were retrospectively reviewed...
2018: Gastroenterology Research and Practice
H Ece Arslan Ozcan, Turgut Anuk, Ozkan Ozden
PURPOSE: Barrett's esophagus is one of the main risk factors for increased incidence of esophageal adenocarcinoma. In this study, we studied protein expression levels and cellular localizations of MUC-1, MUC-2, MUC-5AC, CK7, and cytoplasmic p27 to assess the relationship between the expression of each of these proteins and the disease progression on endoscopic biopsies. MATERIALS AND METHODS: Immunohistochemical analyses were performed using antibodies produced against MUC-1, MUC-2, MUC-5AC, CK7, and p27...
May 23, 2018: Advances in Medical Sciences
Kwun Wah Wen, Peter S Rabinovitch, Danning Huang, Aras N Mattis, Gregory Y Lauwers, Won-Tak Choi
The natural history of gastric epithelial dysplasia and the consequential surveillance strategies are not well defined in the West. To date, the diagnosis relies on morphology, and no reliable adjunct methods, either immunohistochemical or molecular, have reproducibly been able to confirm the diagnosis and/or risk stratify gastric epithelial dysplasia. Yet, such a tool would be useful in confirming the diagnosis, and developing objective and rational surveillance guidelines. DNA flow cytometry was performed using formalin-fixed paraffin-embedded gastric tissue from 23 cases of high-grade dysplasia and 38 cases of low-grade dysplasia...
May 22, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
Monica Saumoy, Yecheskel Schneider, Nicole Shen, Michel Kahaleh, Reem Z Sharaiha, Shailja C Shah
BACKGROUND & AIMS: There are marked racial and ethnic differences in noncardia gastric cancer prevalence within the United States (US). Although gastric cancer screening is recommended in regions of high prevalence, screening is not routinely performed in the US. Our objective was to determine whether selected noncardia gastric cancer screening for high-risk races and ethnicities within the US is cost effective. METHODS: We developed a decision analytic Markov model with the base case of a 50-year-old person of non-Hispanic white, non-Hispanic black, Hispanic, or Asian race or ethnicity...
May 17, 2018: Gastroenterology
Shou-Wu Lee, Han-Chung Lien, Chi-Sen Chang, Chung-Hsin Chang, Chung-Wang Ko, Hong-Zen Yeh
BACKGROUND: Barrett's esophagus (BE) is a disorder more often found in obese men. Differences between the two genders are not known in the Asian countries. Here, we studied their gender differences in the Taiwanese population in terms of risk factors and clinical presentations. METHODS: Data from Taichung Veteran General Hospital were prospectively collected during an approximately two year-period (October 2012 to December 2014). Patients all underwent endoscopic surveillance, and BE was diagnosed based on the typical pattern of intestinal metaplasia...
May 16, 2018: Journal of the Chinese Medical Association: JCMA
Honglei Chen, Yanan Liu, Yi Lu, Xutao Lin, Qiuning Wu, Jiacheng Sun, Chujun Li
We aimed to determine the utility of blue laser imaging (BLI) with magnifying endoscopy (BLI-ME) for the prediction and diagnosis of gastric intestinal metaplasia (GIM). Participants, aged between 40 and 75 years, undergoing gastroscopy from January to April 2017 were included in this study. The ability of BLI-ME and white light endoscopy (WLE) to detect GIM was assessed by comparing the endoscopic findings with the histological findings. The correlation between the grades of light blue crest (LBC) appearance and histology grade of GIM was calculated...
May 18, 2018: Lasers in Medical Science
Tiantian Cai, Chengzhe Zhang, Ziming Zhao, Siyi Li, Haobin Cai, Xiaodong Chen, Dake Cai, Wei Liu, Yan Yan, Kaifeng Xie, Huafeng Pan, Xiaohui Zeng
Gastric Cancer is one of the most common types of cancer. And the occurrence of gastric carcinoma is an evolutionary histopathological stage. As a result, further research of GPL, which is a borderline of gastric cancer, is indispensable for preventing the formation and development of gastric carcinoma. Several studies have demonstrated a correlation between the expression of autophagy, apoptosis and Gastric cancer (GC). However, the effects of autophagy and apoptosis on human gastric cancer progression, particularly on gastric precancerous lesions (GPL), have not totally been investigated...
May 15, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Kevin Singh, Soren Gandhi, Raffat Batool
Aim : Low circulating vitamin D levels are associated with gastric adenocarcinoma, but whether vitamin D levels are associated with premalignant gastric mucosal changes is unknown. Here, we determined associations between vitamin D levels and gastric incomplete intestinal metaplasia, a known gastric adenocarcinoma risk factor. Methods : This was a retrospective, unmatched, case-control study comparing serum 25-hydroxyvitamin D levels among subjects with gastric incomplete intestinal metaplasia (cases; n = 103) and those without gastric incomplete intestinal metaplasia (controls; n = 216)...
May 16, 2018: Nutrients
João Pedro Homse Netto, João Pedro Sant'Anna Pinheiro, Mariana Lopes Ferrari, Mirella Tizziani Soares, Rogério Augusto Gomes Silveira, Mariana Espiga Maioli, Vinicius Daher Alvares Delfino
INTRODUCTION: The incidence of gastrointestinal disorders among patients with chronic kidney disease (CKD) is high, despite the lack of a good correlation between endoscopic findings and symptoms. Many services thus perform upper gastrointestinal (UGI) endoscopy on kidney transplant candidates. OBJECTIVES: This study aims to describe the alterations seen on the upper endoscopies of 96 kidney-transplant candidates seen from 2014 to 2015. METHODS: Ninety-six CKD patients underwent upper endoscopic examination as part of the preparation to receive kidney grafts...
May 14, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
M K Jeon, E Kaemmerer, U Schneider, M Schiffer, C Klaus, J Hennings, T Clahsen, T Ackerstaff, M Niggemann, A Schippers, T Longerich, G Sellge, C Trautwein, N Wagner, C Liedtke, N Gassler
Opposing activities of Notch and Wnt signaling regulate mucosal barrier homeostasis and differentiation of intestinal epithelial cells. Specifically, Wnt activity is essential for differentiation of secretory cells including Wnt3-producing Paneth cells, whereas Notch signaling strongly promotes generation of absorptive cells. Loss of caspase-8 in intestinal epithelium (casp8∆int ) is associated with fulminant epithelial necroptosis, severe Paneth cell death, secondary intestinal inflammation, and an increase in Notch activity...
May 16, 2018: Virchows Archiv: An International Journal of Pathology
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