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https://www.readbyqxmd.com/read/28922429/giardia-duodenalis-associated-with-intestinal-metaplasia-of-the-stomach
#1
Cristian Gheorghe, Bogdan Cotruta, Gabriel Becheanu, Mona Dumbrava, Stefania Verban
No abstract text is available yet for this article.
September 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28918609/associations-among-gastric-juice-ph-atrophic-gastritis-intestinal-metaplasia-and-helicobacter-pylori-infection
#2
Jihee Sung, Nayoung Kim, Jongchan Lee, Young-Jae Hwang, Hyoung Woo Kim, Jung Wha Chung, Jin-Wook Kim, Dong Ho Lee
Background/Aims: Gastric juice plays a crucial role in the physiology of the stomach. The aim of this study is to evaluate associations among the pH of gastric juice, atrophic gastritis (AG), intestinal metaplasia (IM), pepsinogen, and Helicobacter pylori infection. Methods: Gastric biopsies and juice were collected from 46 subjects who underwent endoscopies at Seoul National University Bundang Hospital between November 2011 and March 2013. H. pylori, AG and IM were evaluated, and pepsinogen I or II, I/II ratio and interleukin (IL)-1β levels were measured...
September 19, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28912017/indoleamine-2-3-dioxygenase-1-increased-in-human-gastric-pre-neoplasia-promotes-inflammation-and-metaplasia-in-mice-and-is-associated-with-type-ii-hypersensitivity-autoimmunity
#3
Mohamad El-Zaatari, Adam J Bass, Reanne Bowlby, Min Zhang, Li-Jyun Syu, Yitian Yang, Helmut Grasberger, Andrew Shreiner, Bei Tan, Shrinivas Bishu, Wai K Leung, Andrea Todisco, Nobuhiko Kamada, Marilia Cascalho, Andrzej A Dlugosz, John Y Kao
BACKGROUND & AIMS: Chronic gastrointestinal inflammation increases the risk of cancer by mechanisms that are not well understood. Indoleamine-2,3-dioxygenase 1 (IDO1) is a heme-binding enzyme that regulates the immune response via catabolization and regulation of tryptophan availability for immune cell uptake. IDO1 expression is increased during the transition from chronic inflammation to gastric metaplasia. We investigated whether IDO1 contributes to the inflammatory response that mediates loss of parietal cells leading to metaplasia...
September 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28905803/diagnosis-and-treatment-of-gastroesophageal-reflux-disease-complicated-by-barrett-s-esophagus
#4
Andriy Stasyshyn
The aim of the study was to evaluate the effectiveness of a diagnostic and therapeutic algorithm for gastroesophageal reflux disease complicated by Barrett's esophagus in 46 patients. MATERIALS AND METHODS: A diagnostic and therapeutic algorithm for complicated GERD was developed. To describe the changes in the esophagus with reflux esophagitis, the Los Angeles classification was used. Intestinal metaplasia of the epithelium in the lower third of the esophagus was assessed using videoendoscopy, chromoscopy, and biopsy...
August 31, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28903902/single-cell-gene-variation-analysis-method-for-single-gland
#5
Yan Zhou, Chao-Jie Wang, Chun-Chao Zhu, Jiang-Rong Chen, Ming Cheng, Yu-Liang Deng, Yan Guo
Single-cell analysis of heterogeneity has become the cutting-edge technology for profound understandings of relationships between cell populations. At present, common methods used in single cellular genomic research are mainly microfluidic technologies (Fluidigm) or based on microwells, both requiring a uniform size of cells at the entrance. However, the size of cells in specific tissues can vary from type to type. To address this issue, we need to establish a method to identify genomic features of individual cells of different sizes...
August 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28902909/the-cytoprotective-protein-clusterin-is-overexpressed-in-hypergastrinemic-rodent-models-of-oxyntic-preneoplasia-and-promotes-gastric-cancer-cell-survival
#6
Pål Vange, Torunn Bruland, Berit Doseth, Reidar Fossmark, Mirta M L Sousa, Vidar Beisvag, Øystein Sørdal, Gunnar Qvigstad, Helge L Waldum, Arne K Sandvik, Ingunn Bakke
The cytoprotective protein clusterin is often dysregulated during tumorigenesis, and in the stomach, upregulation of clusterin marks emergence of the oxyntic atrophy (loss of acid-producing parietal cells)-associated spasmolytic polypeptide-expressing metaplasia (SPEM). The hormone gastrin is important for normal function and maturation of the gastric oxyntic mucosa and hypergastrinemia might be involved in gastric carcinogenesis. Gastrin induces expression of clusterin in adenocarcinoma cells. In the present study, we examined the expression patterns and gastrin-mediated regulation of clusterin in gastric tissue from: humans; rats treated with proton pump (H+/K+-ATPase) inhibitors and/or a gastrin receptor (CCK2R) antagonist; H+/K+-ATPase β-subunit knockout (H/K-β KO) mice; and Mongolian gerbils infected with Helicobacter pylori and given a CCK2R antagonist...
2017: PloS One
https://www.readbyqxmd.com/read/28902792/paracrine-secretion-of-transforming-growth-factor-%C3%AE-by-ductal-cells-promotes-acinar-to-ductal-metaplasia-in-cultured-human-exocrine-pancreas-tissues
#7
Naoki Akanuma, Jun Liu, Geou-Yarh Liou, Xue Yin, Kaitlyn R Bejar, Chengyang Liu, Lu-Zhe Sun, Peter Storz, Pei Wang
OBJECTIVE: We aimed to evaluate the contribution of acinar-to-ductal metaplasia (ADM) to the accumulation of cells with a ductal phenotype in cultured human exocrine pancreatic tissues and reveal the underlying mechanism. METHODS: We sorted and cultured viable cell populations in human exocrine pancreatic tissues with a flow cytometry-based lineage tracing method to evaluate possible mechanisms of ADM. Cell surface markers, gene expression pattern, and sphere formation assay were used to examine ADM...
October 2017: Pancreas
https://www.readbyqxmd.com/read/28899343/genome-wide-gene-expression-analysis-in-the-placenta-from-fetus-with-trisomy-21
#8
Ji Hyae Lim, You Jung Han, Hyun Jin Kim, Dong Wook Kwak, So Yeon Park, Sun-Hee Chun, Hyun Mee Ryu
BACKGROUND: We performed whole human genome expression analysis in placenta tissue (normal and T21) samples in order to investigate gene expression into the pathogenesis of trisomy 21 (T21) placenta. We profiled the whole human genome expression of placental samples from normal and T21 fetuses using the GeneChip Human Genome U133 plus 2.0 array. Based on these data, we predicted the functions of differentially expressed genes using bioinformatics tools. RESULTS: A total of 110 genes had different expression patterns in the T21 placentas than they did in the normal placentas...
September 12, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28894207/positive-feedback-of-the-amphiregulin-egfr-erk-pathway-mediates-pm2-5-from-wood-smoke-induced-muc5ac-expression-in-epithelial-cells
#9
Lingmei Huang, Jinding Pu, Fang He, Baoling Liao, Binwei Hao, Wei Hong, Xiuqin Ye, Jinglong Chen, Jun Zhao, Sha Liu, Juan Xu, Bing Li, Pixin Ran
Biomass fuel smoke is thought to contribute to chronic obstructive pulmonary disease, which is characterized by mucous cell metaplasia and enhanced mucus secretion. We investigated the effect of particulate matter (PM) with a diameter <2.5 μm (PM2.5) from wood smoke (WSPM2.5) on the expression of the most prominent secreted mucin, MUC5AC. Wood smoke was able to induce MUC5AC expression in the rat respiratory tract after 3 months of exposure. WSPM2.5 could induce MUC5AC production in both primary human airway epithelial cells and the NCI-H292 cell line...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893301/intussusception-caused-by-heterotopic-gastric-mucosa-in-small-intestine-a-case-report
#10
Priyanka Anand, Sompal Singh, Namrata Sarin
BACKGROUND: Intestinal intussusception is the most frequent cause of small bowel obstruction in children between the ages of 2 months and 5 years and often remains idiopathic in etiology, even after surgery. On microscopic examination, in intussusception normal mucosa is noted but in a few cases heterotopic tissue can be seen. Heterotopic gastric mucosa in the small intestine is extremely rare except for its occurrence in remnants of Meckel's diverticulum. In view of the rarity of this condition, we report a case of ectopic gastric mucosa in the small intestine that was not associated with remnants of vitelline duct...
September 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28892902/effects-of-different-contraceptive-methods-on-cervico-vaginal-cytology
#11
Khushboo Garg, Anjali Khare, Rani Bansal, Sangeeta Sharma, Neha Chaudhary
INTRODUCTION: The vaginal flora of healthy adult women of reproductive age group constitutes predominantly Lactobacilli which inhibits the growth of other microorganisms (by maintaining acidic pH). The vaginal microflora is altered in favour of anaerobes in women using Intra Uterine Contraceptive Device (IUCD). Also, it can cause morphologic changes in both squamous and endocervical columnar cells. Similarly, the prevalence of vaginal lactobacilli is reduced among women using diaphragm-spermicide or spermicide alone...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891433/innate-lymphoid-cells-mediate-pulmonary-eosinophilic-inflammation-airway-mucous-cell-metaplasia-and-type-2-immunity-in-mice-exposed-to-ozone
#12
Kazuyoshi Kumagai, Ryan P Lewandowski, Daven N Jackson-Humbles, Nicholas Buglak, Ning Li, Kaylin White, Steven J Van Dyken, James G Wagner, Jack R Harkema
Exposure to elevated levels of ambient ozone in photochemical smog is associated with eosinophilic airway inflammation and nonatopic asthma in children. In the present study, we determined the role of innate lymphoid cells (ILCs) in the pathogenesis of ozone-induced nonatopic asthma by using lymphoid cell-sufficient C57BL/6 mice, ILC-sufficient Rag2(-/-) mice (devoid of T and B cells), and ILC-deficient Rag2(-/-)Il2rg(-/-) mice (depleted of all lymphoid cells including ILCs). Mice were exposed to 0 or 0.8 parts per million ozone for 1 day or 9 consecutive weekdays (4 hr/day)...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28891127/helicobacter-pylori-gastric-cancer-and-other-gastrointestinal-malignancies
#13
REVIEW
Marino Venerito, Riccardo Vasapolli, Theodore Rokkas, Jean-Charles Delchier, Peter Malfertheiner
In a retrospective study performed in California, U.S.A., ca. 3% of patients with gastric intestinal metaplasia (GIM) developed gastric cancer (GC) within a median time period of 4.6 years after diagnosis of GIM. This observation stresses the importance of targeted surveillance even in regions with a low GC prevalence. Patients with alcoholic liver disease as well as survivors of colorectal and lobular breast cancer were found to be at increased risk of secondary GC. A population-based Chinese study confirmed "serologic biopsy" as a useful screening tool for stratifying the individual risk of developing GC...
September 2017: Helicobacter
https://www.readbyqxmd.com/read/28889157/epidemiologic-characteristics-of-gastric-malignancies-among-jordan-university-hospital-patients
#14
Heyam A Awad, Manar H Hajeer, Mohand W Abulihya, Mohammad A Al-Chalabi, Ali A Al Khader
To discover the epidemiologic distribution of gastric malignancies among Jordan University Hospital patients and to compare this distribution with the neighboring Arab countries. Methods: Retrospective study covering the period between  January 2006, and May 2016, in Jordan University Hospital, Amman, Jordan. All cases were retrieved from the computer system and analyzed using IBM SPSS version 23 software.  Results: One hundred and sixty-five cases were analyzed. Male-to-female ratio was 1.2:1. The mean age was 58...
September 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28886101/high-prevalence-of-gastric-intestinal-metaplasia-detected-by-confocal-laser-endomicroscopy-in-zambian-adults
#15
Violet Kayamba, Aaron Shibemba, Kanekwa Zyambo, Douglas C Heimburger, Douglas R Morgan, Paul Kelly
BACKGROUND: Confocal laser endomicroscopy (CLE) may increase the detection of gastric premalignant lesions, and facilitate targeted biopsies for histology. The study aim was to analyse premalignant lesions in Zambian adults using CLE. METHODS: Using CLE and histology we analysed the antral mucosa for gastric premalignant lesions in asymptomatic adults living with HIV and in HIV seronegative adults. Fasting gastric pH and the presence of Helicobacter pylori (H. pylori) were also evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28881898/performance-characteristics-of-optical-coherence-tomography-in-assessment-of-barrett-s-esophagus-and-esophageal-cancer-systematic-review
#16
D R Kohli, M L Schubert, A M Zfass, T U Shah
Optical coherence tomography (OCT) can generate high-resolution images of the esophagus that allows cross-sectional visualization of esophageal wall layers. We conducted a systematic review to assess the utility of OCT for diagnosing of esophageal intestinal metaplasia (IM; Barrett's esophagus BE)), dysplasia, cancer and staging of early esophageal cancer. English language human observational studies and clinical trials published in PubMed and Embase were included if they assessed any of the following: (i) in-vivo features and accuracy of OCT at diagnosing esophageal IM, sub-squamous intestinal metaplasia (SSIM), dysplasia, or cancer, and (ii) accuracy of OCT in staging esophageal cancer...
November 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28881583/troy-is-expressed-in-human-stomach-mucosa-and-a-novel-putative-prognostic-marker-of-intestinal-type-gastric-cancer
#17
Franziska Wilhelm, Christine Böger, Sandra Krüger, Hans-Michael Behrens, Christoph Röcken
Epithelial stem cells of gastrointestinal tissues are characterized and controlled by an active Wnt signaling. Recently, the Wnt target gene Troy has been proposed as a neoplastic marker in the murine intestine. In this study, we explored the putative tumor biological significance of Troy in humans by using immunohistochemistry (104 cases), quantitative RT-PCR (50 cases) and cell culture experiments (MKN45, MKN74). In the non-neoplastic gastric mucosa, Troy was expressed by Muc5AC-positive foveolar epithelium, parietal cells, chief cells and cells of the intestinal metaplasia...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28877809/a-review-of-sleeve-gastrectomy-specimen-histopathology
#18
Luke A Kinsinger, James C Garber, Oliver Whipple
With the increasing popularity of sleeve gastrectomy, many stomach specimens are being evaluated. Understanding the significance and treatment for unexpected pathology is important. This study examines the incidence of relevant histopathology of sleeve gastrectomy specimens. It evaluates previous data for each histopathology and provides recommendations for treatment. In this study, a retrospective review was performed for 241 patients who underwent sleeve gastrectomy from 2009 to 2014 at a single institution...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28870961/the-local-recurrence-of-breast-cancer-with-squamous-metaplasia-and-obvious-histological-heterogeneity
#19
Nami Yamashita, Eriko Tokunaga, Hidetaka Yamamoto, Chikako Shimizu, Kenji Taketani, Yuka Inoue, Hiroshi Saeki, Eiji Oki, Yoshihiko Maehara
CASE REPORT: We herein report a case of local recurrence of breast cancer with squamous metaplasia and obvious intratumoral and intertumoral heterogeneity. A 39-year-old female patient was diagnosed with T3N2M0 stage IIIB right breast cancer and underwent right total mastectomy and axillar lymph node dissection. At four years after surgery, she became aware of chest wall pain and diagnostic imaging revealed recurrence in the lung, right thoracic wall and sternum. The recurrent lesions remained stable for 18 months with endocrine therapy...
September 2017: Anticancer Research
https://www.readbyqxmd.com/read/28870046/-the-chinese-consensus-for-screening-diagnosis-and-management-of-barrett-s-esophagus-and-early-adenocarcinoma-2017-wanning
#20
(no author information available yet)
Patients with Barrett's esophagus (BE)/columnar lined esophagus (CLE) and adenocarcinoma are increasing, in whom 0.61% BE/CLE would develop to adenocarcinoma. The prognosis of esophageal cancer is related to the tumor stage at diagnosis. To standardize the screening, diagnosis and therapy of BE and adenocarcinoma in China, 31 digestive diseases and digestive endoscopy experts and digestive histologists drafted the consensus on the basis of clinical experience and references. The consensus defined BE as a complication of gastroesophageal reflux disease...
September 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
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