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Gastric dysplasia

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https://www.readbyqxmd.com/read/29221215/dnmt1-overexpression-predicting-gastric-carcinogenesis-subsequent-progression-and-prognosis-a-meta-and-bioinformatic-analysis
#1
Tianmiao Ma, Hao Li, Mingjun Sun, Yuan Yuan, Li-Ping Sun
DNMT1 is important in maintaining DNA methylation, and participates in the oncogenesis via up- or down-regulation leading to hyper-methylation or hypo-methylation. In the meta and bioinformatic analysis, we found that DNMT1 expression was higher in gastric cancer, compared with normal (p < 0.00001), para-cancerous (p = 0.0004) and dysplasia (p < 0.00001) tissues. DNMT1 up-regulation was associated with gender (OR = 2.27, p = 0.006), differentiation (OR = 0.21, p = 0.01) and TNM stage (OR = 0.31, p = 0...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29214514/predictors-of-upstage-diagnosis-after-endoscopic-resection-of-gastric-low-grade-dysplasia
#2
Dae Hwan Kang, Cheol Woong Choi, Hyung Wook Kim, Su Bum Park, Su Jin Kim, Hyeong Seok Nam, Dae Gon Ryu
BACKGROUND: The optimal management of precursor lesions such as gastric low-grade dysplasia is crucial in order to improve gastric cancer-related mortality. However, there are no universally accepted management guidelines regarding which lesions should be resected or should be monitored by follow-up visits. PATIENTS AND METHODS: We retrospectively analyzed data from 1006 gastric low-grade dysplasia lesions that had been resected via endoscopic submucosal dissection...
December 6, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29211362/clinical-differences-of-helicobacter-pylori-infection-in-children
#3
REVIEW
Barbara M Iwańczak, Anna M Buchner, Franciszek Iwańczak
Helicobacter pylori infection is widely spread all over the world. The prevalence of H. pylori infection in the world varies and depends on numerous factors such as age, ethnicity, geographical and socioeconomic status. Humans have been in a symbiotic relationship with this bacterium for thousands of years. However 10-20% of people infected with H. pylori are likely to develop gastroduodenal diseases such as peptic ulcer disease, iron deficiency anemia, gastric mucosal atrophy, metaplasia, dysplasia, MALT lymphoma, or gastric adenocarcinoma...
October 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29209116/gastric-xanthelasma-and-metabolic-disorders-a-large-retrospective-study-among-chinese-population
#4
Yi Chen, Xin-Jue He, Min-Jian Zhou, You-Ming Li
AIM: To gain knowledge of xanthelasma, a large population-based study was conducted. METHODS: Patients who underwent upper gastrointestinal endoscopy at the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China during Jan 2009 to Nov 2016 were included. General characteristics as well as clinical data were collected, including blood routine, serum biochemical analysis, endoscopic findinds, histological evaluation and comorbiditie. Statistical analyses was performed using SPSS 20...
November 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29208252/sporadic-fundic-gland-polyps-and-gastric-acid-suppression-level
#5
Mohamed Khalaf, Andrew S Brock, Donald Castell
BACKGROUND: Fundic gland polyps (FGPs) are a common endoscopic finding and are known to be associated with proton pump inhibitors (PPIs) use. It is not known if their prevalence is affected by gastric acidity levels. This study aimed to assess whether there is a correlation between FGPs and gastric acidity levels as identified on 24-hour ambulatory impedance-pH studies in patients on PPI therapy. METHODS: We performed a review of 402 consecutive patients who take at least once daily PPI and underwent esophagogastroduodenoscopy with combined impedance-pH studies in the same setting (time and place) between January 2010 and December 2014...
December 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29207718/an-alpha-fetoprotein-producing-gastric-tumor-with-yolk-sac-hepatoid-and-papillary-adenocarcinoma-components
#6
Archana Lakshmanan, Ann Kurian, Annapurneswari Subramanyan, Ayyappan Srinivasan
Alpha Fetoprotein (AFP) producing gastric carcinomas are very rare and have unique clinicopathological features and an extremely poor prognosis. Here, we report a case of AFP producing gastric carcinoma with three distinct histomorphologic patterns such as yolk sac like, hepatoid, tubular and papillary adenocarcinoma components. The uniqueness of this case is absence of metastases and associated findings such as fundic gland polyposis with varying degrees of dysplasia, gastric and duodenal well differentiated neuroendocrine tumour and rectal ganglioneuroma...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29179204/clinical-significance-of-myeloid-zinc-finger-1-expression-in-the-progression-of-gastric-tumourigenesis
#7
Guo-Qiang Li, Qing He, Lang Yang, Shu-Bin Wang, De-Dong Yu, Yu-Qi He, Jiang Hu, Yuan-Ming Pan, Yun Wu
BACKGROUND/AIMS: To investigate the clinical significance of myeloid zinc finger 1 (MZF1) expression in various gastric mucosal lesions including chronic superficial gastritis (CSG), chronic atrophic gastritis (CAG), intestinal metaplasia (IM), dysplasia (DYS) and gastric cancer (GC) in comparison with normal tissues and gastric cell lines. METHODS: MZF1 protein expression was detected using immunohistochemical staining in 37 CSG, 88 CAG, 77 IM, 51 DYS, 165 GC and 8 normal tissue samples...
November 28, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29161791/development-of-metachronous-tumors-after-endoscopic-resection-for-gastric-neoplasm-according-to-the-baseline-tumor-grade-at-a-health-checkup-center
#8
Goh Eun Chung, Su Jin Chung, Jong In Yang, Eun Hyo Jin, Min Jung Park, Sang Gyun Kim, Joo Sung Kim
Background/Aims: Endoscopic resection (ER) procedure has been performed widely to treat gastric neoplasms. Here, we compared the long-term prognosis based on the clinical features of three types of recurred gastric neoplasms after ER, including low-grade dysplasia (LGD), high-grade dysplasia (HGD), and early gastric carcinoma (EGC). Methods: Between 2003 and 2014, subjects who were diagnosed with gastric neoplasm during screening endoscopy were included. The baseline clinicopathologic and tumor recurrence were analyzed...
November 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/29161426/family-history-of-gastric-mucosal-abnormality-and-the-risk-of-gastric-cancer-a-population-based-observational-study
#9
Huan Song, Isabella Guncha Ekheden, Alexander Ploner, Jan Ericsson, Olof Nyren, Weimin Ye
Background: An increased prevalence of gastric premalignant abnormalities was reported among relatives of gastric cancer (GC) patients, with rather unexplored clinical significance. Methods: In Swedish computerized pathology registers, we identified, as 'index' persons 232 681 patients who were born after 1931 and underwent endoscopic examination with stomach biopsy between 1979 and 2014. Through linkage with the Multi-Generation Register, we compiled a cohort consisting of 903 337 first-degree relatives of these biopsied patients...
November 17, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29155519/quantitative-changes-of-gastric-mucosa-during-carcinogenesis-using-stereological-methods
#10
Zahra Heidari, Hamidreza Mahmoudzadeh-Sagheb, Mahdieh Narouei
PURPOSE: To investigate the effects of helicobacter pylori (H. pylori) infection on the quantitative changes of gastric mucosa in cancerous and precancerous lesions using stereological methods. METHODS: One hundred and twenty-two gastric samples were studied. After determination of H. pylori infection, 42 gastric tissues of intestinal metaplasia (IM) patients, 38 specimens from dysplasia (DYS), and 42 specimens from gastric cancer (GC) types were selected from the pathology archive of Imam Ali Hospital, Zahedan, Iran...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29154808/genetic-host-factors-in-helicobacter-pylori-induced-carcinogenesis-emerging-new-paradigms
#11
REVIEW
Michiel C Mommersteeg, Jun Yu, Maikel P Peppelenbosch, Gwenny M Fuhler
Helicobacter Pylori is a gram negative rod shaped microaerophilic bacterium that colonizes the stomach of approximately half the world's population. Infection with c may cause chronic gastritis which via a quite well described process known as Correas cascade can progress through sequential development of atrophic gastritis, intestinal metaplasia and dysplasia to gastric cancer. H. pylori is currently the only bacterium that is classified as a class 1 carcinogen by the WHO, although the exact mechanisms by which this bacterium contributes to gastric carcinogenesis are still poorly understood...
November 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29152066/identification-and-validation-of-fgfr2-peptide-for-detection-of-early-barrett-s-neoplasia
#12
Juan Zhou, Lei He, Zhijun Pang, Henry D Appelman, Rork Kuick, David G Beer, Meng Li, Thomas D Wang
The incidence of esophageal adenocarcinoma (EAC) is rising rapidly, and early detection within the precursor state of Barrett's esophagus (BE) is challenged by flat premalignant lesions that are difficult detect with conventional endoscopic surveillance. Overexpression of cell surface fibroblast growth factor receptor 2 (FGFR2) is an early event in progression of BE to EAC, and is a promising imaging target. We used phage display to identify the peptide SRRPASFRTARE that binds specifically to the extracellular domain of FGFR2...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29143337/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-rapidly-xenografts-in-chicken-eggs-and-predicts-aggressiveness
#13
Zhefu Zhao, Nathalie Bauer, Ewa Aleksandrowicz, Libo Yin, Jury Gladkich, Wolfgang Gross, Jörg Kaiser, Thilo Hackert, Oliver Strobel, Ingrid Herr
Intraductal papillary mucinous neoplasm (IPMN) of the pancreas has a high risk of progressing to invasive pancreatic ductal adenocarcinoma (PDA), but experimental models for IPMN are largely missing. New experimental systems for the molecular characterization of IPMN and for personalized prognosis and treatment options for IPMN are urgently needed. We analyzed the potential use of fertilized chicken eggs for the culture of freshly resected IPMN tissue. We transplanted 49 freshly resected IPMN tissues into eggs and compared the growth characteristics to IPMN tissues transplanted into mice; this was followed by an analysis of histology, morphology and marker expression...
November 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29141268/gastric-adenocarcinoma-and-proximal-polyposis-of-the-stomach-gapps-a-rare-recently-described-gastric-polyposis-syndrome-report-of-a-case
#14
Andrea Beer, Berthold Streubel, Reza Asari, Clemens Dejaco, Georg Oberhuber
In rare cases with multiple gastric polyps in the corpus and fundus, a recently described gastric polyposis syndrome called gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS) has to be considered. We report on the findings in a patient fulfilling the criteria of this disease.A female patient born in 1977 underwent gastroscopy in 2005 due to recurrent abdominal pain. Endoscopy revealed more than 100 fundic gland polyps in the corpus and fundus. An ileocolonoscopy was inconspicuous. The patient did not take proton pump inhibitors...
November 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/29138645/chinese-classical-formula-sijunzi-decoction-and-chronic-atrophic-gastritis-evidence-for-treatment-approach
#15
REVIEW
Danan Gan, Aili Xu, Hongbo Du, Yong'an Ye
Objective: This aim is to evaluate the effect of Sijunzi decoction (SJZD) treating chronic atrophic gastritis (CAG). Methods: We performed searches in seven databases. The randomized controlled trials (RCTs) comparing SJZD with standard medical care or inactive intervention for CAG were enrolled. Combined therapy of SJZD plus conventional therapies compared with conventional therapies alone was also retrieved. The primary outcome included the incidence of gastric cancer and the improvement of atrophy, intestinal metaplasia, and dysplasia based on the gastroscopy and pathology...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29132476/helicobacter-pyloriassociation-with-expression-of-cdx2-in-intestinal-metaplasia
#16
Tayyab Hamid Malik, WangYu, XuHong
OBJECTIVE: To assess whether helicobacter pylori was associated with CDX2 expression in intestinal metaplasia, atrophic gastritis, dysplasia and gastric cancer. STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: Department of Pathology, The First Hospital of Jilin University, Changchun, China, from August 2016 to January 2017. METHODOLOGY: CDX2 expression was evaluated in 62 gastric antral biopsies; including 32 cases of intestinal metaplasia (IM) and 10 cases each of atrophic gastritis (AG), dysplasia and gastric cancer...
November 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29113260/expression-of-c-met-and-hepatocyte-growth-factor-in-various-gastric-pathologies-and-its-association-with-helicobacter-pylori-infection
#17
Chuan Xie, Zhen Yang, Yi Hu, Ximei Cao, Jiang Chen, Yin Zhu, Nonghua Lu
Activation of the hepatocyte growth factor (HGF)/c-Met signaling pathway was identified to be associated with malignant tumors. The present study aimed at determining the expression of HGF and c-Met in gastric carcinogenesis and its association with Helicobacter pylori infection. Gastric biopsies were obtained from 160 H. pylori-negative and -positive patients, including those with chronic gastritis, intestinal metaplasia, dysplasia and gastric cancer (GC). Proteins were extracted from GES-1, gastric epithelial, and AGS, gastric adenocarcinoma, cells following co-culture with H...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29112017/neoplastic-lesions-of-gastric-adenocarcinoma-and-proximal-polyposis-syndrome-gapps-are-gastric-phenotype
#18
Willem B de Boer, Hooi Ee, Marian P Kumarasinghe
Neoplastic lesions of gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS) are gastric phenotype. GAPPS was reported in 2011 as a new autosomal dominant gastric polyposis syndrome characterized by involvement of the gastric body/fundus with sparing of the antrum by multiple polyps, reported to be primarily fundic gland polyps (FGPs), with progression to dysplasia and adenocarcinoma of intestinal type. Our series consists of 51 endoscopic biopsies and 5 gastrectomy specimens from 25 patients belonging to a previously defined GAPPS family...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29103763/occurrence-of-metachronous-or-synchronous-lesions-after-endoscopic-treatment-of-gastric-epithelia-dysplasia-impact-of-histologic-features-of-background-mucosa
#19
Won-Young Park, So-Jeong Lee, Young-Keum Kim, Ahrong Kim, Do Youn Park, Bong-Eun Lee, Geun-Am Song, Gwang Ha Kim
AIMS: Endoscopic resection is a safe and effective method to treat gastric epithelia dysplasia (GED). However, the development of metachronous and synchronous lesions after treatment has become a major concern. In this study, we investigated clinicopathologic features of 105 GED lesions from endoscopic resections between January 2008 and December 2009. Our goal is to find histologic factors that predict synchronous and metachronous lesions after ESD treatment. We assessed the degree of intestinal metaplasia (IM) and atrophy, type of IM, presence of gastritis cystica profunda, and crypt dysplasia in the adjacent mucosa...
October 28, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29102522/long-term-course-of-precancerous-lesions-arising-in-patients-with-gastric-malt-lymphoma
#20
Anne-Laure Rentien, Michaël Lévy, Christiane Copie-Bergman, Charlotte Gagniere, Jehan Dupuis, Yann Le Baleur, Karim Belhadj, Iradj Sobhani, Corinne Haioun, Jean-Charles Delchier, Aurelien Amiot
BACKGROUND AND AIMS: To evaluate the prevalence and the long-term course of gastric precancerous lesions in patients with GML. PATIENTS AND METHODS: In this retrospective single-centre study, we included 179 patients with GML, 70 with gastric diffuse large B-cell lymphoma (GDLBCL) and 152 with Helicobacter pylori-associated gastritis (HpG), from January 1995 to January 2014. The presence of atrophic gastritis, intestinal metaplasia and neoplastic lesion has been assessed at baseline and during follow-up...
October 27, 2017: Digestive and Liver Disease
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