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Wenzel M Hackeng, Elizabeth A Montgomery, Francis M Giardiello, Aatur D Singhi, Marija Debeljak, James R Eshleman, Michael Vieth, G Johan A Offerhaus, Laura D Wood, Lodewijk A A Brosens
BACKGROUND: Gastric pyloric gland adenomas (PGAs) are rare epithelial polyps that are more commonly found in autoimmune atrophic gastritis and familial adenomatous polyposis. Little is known about the morphology and genetics of PGAs in familial adenomatous polyposis. AIMS: PGAs in familial adenomatous polyposis are studied morphologically and genetically. Findings in FAP associated PGAs are compared to sporadic PGAs and related lesions such as oxyntic gland adenoma (OGA) to increase our understanding of these rare polyps...
October 21, 2016: Histopathology
Heng Xue, Hui-Yu Ge, Li-Ying Miao, Shu-Min Wang, Bo Zhao, Jin-Rui Wang, Li-Gang Cui
OBJECTIVES: To evaluate the diagnostic performance of contrast-enhanced ultrasound (CEUS) in differential diagnosis of gastric cancer and gastritis, with histological results as reference standard. METHODS: From September 2011 to August 2014, 82 patients (50 males and 32 females; mean age ± SD, 59.5 ± 15.0 years; range 19-91 years) with gastric cancer or gastritis were included in this Ethics Committee-approved prospective study. Conventional ultrasonography (US) and CEUS were applied to distinguish the two lesions, and both qualitative and quantitative features were evaluated...
October 19, 2016: Abdominal Radiology
Irma Cláudia Saboya Ribeiro, Luiz Fernandao Kubrusly, Paulo Afonso Nunes Nassif, Patrícia Fernanda Saboya Ribeiro, Rodrigo de Oliveira Veras, Aline Neppel
Background: The influence of Helicobacter pylori (HP) in inflammatory disorders of the digestive mucosa has been the subject of several studies since socioeconomic, personal and environmental factors were implicated in the bacteria transmission. Aim: To correlate the inflammatory endoscopic findings with HP infection and the onset of mucosal diseases mucous of the upper digestive tract. Method: Comparative observational study, in which were collected data from 2247 patients who underwent upper endoscopy and biopsies for HP with urease test...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Laleh Mahmoudi, Shohreh Farshad, Mehrdad Seddigh, Paria Mahmoudi, Fardad Ejtehadi, Ramin Niknam
BACKGROUND: Helicobacter pylori (H pylori) is a common gastric pathogen which is associated with chronic gastritis, peptic ulcer, and gastric cancer. It has worldwide distribution with higher incidence in developing countries. Gemifloxacin is a fluoroquinolone antibiotic with documented in vitro activity against H pylori. Considering that there is no clinical data to verify gemifloxacin efficacy in H pylori eradication, this pilot clinical trial was designed. METHODS: This prospective pilot study was performed during February 2014 to February 2015...
October 2016: Medicine (Baltimore)
Sarah A Overall, Dorothée Bourges, Ian R van Driel, Paul A Gleeson
How the immune system maintains peripheral tolerance under inflammatory conditions is poorly understood. Here we assessed the fate of gastritogenic T cells following inflammatory activation in vivo. Self-reactive T cells (A23 T cells) specific for the gastric H(+) /K(+) ATPase α subunit (HKα) were transferred into immunosufficient recipient mice and immunised at a site distant to the stomach with adjuvant containing the cognate HKα peptide antigen. Activation of A23 T cells by immunisation did not impact on either immune tolerance or protection from gastric autoimmunity in wild-type BALB/c mice...
October 19, 2016: European Journal of Immunology
Matthew Gordon Varga, Maria Blanca Piazuelo, Judith Romero-Gallo, Alberto G Delgado, Giovanni Suarez, Morgan E Whitaker, Uma S Krishna, Rachna V Patel, Eric P Skaar, Keith T Wilson, Holly M Scott Algood, Richard M Peek
Helicobacter pylori induces chronic gastritis in humans and infection can persist for decades. One H. pylori strain-specific constituent that augments disease risk is the cag pathogenicity island. The cag island encodes a type IV secretion system (T4SS) that translocates DNA into host cells. Toll-like receptor 9 (TLR9) is an innate immune receptor that detects hypo-methylated CpG DNA motifs. In this study, we sought to define the role of the H. pylori cag T4SS on TLR9-mediated responses in vivo H. pylori strain PMSS1 or its cagE(-) mutant, which fails to assemble a T4SS, were used to infect wild-type or Tlr9(-/-) C57BL/6 mice...
October 6, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
Faisal Aziz, Wei Gao, Qiu Yan
H. pylori cytotoxin associated antigen A (CagA) plays a significant role in the progression of gastric cancer but their effect on fucosylation to develop gastric cancer is unknown. Fucosyltransferase IV (FUT4) is the key enzyme for synthesis of LewisY (LeY) carried by glycoproteins and glycolipids on the cell membrane. Herein, we compare the expression of CagA, p-EGFR, FUT4 and LeY in gastritis (n = 128, 176), gastric ulcer (n = 174, 213), and gastric cancer (n = 323, 261) tissue and serum samples, respectively by IHC and ELISA...
October 18, 2016: Pathology Oncology Research: POR
Guangzhi Zhang, Richard Ducatelle, Belgacem Mihi, Annemieke Smet, Bram Flahou, Freddy Haesebrouck
The stomach of pigs at slaughter age is often colonized by Helicobacter (H.) suis, which is also the most prevalent gastric non-H. pylori Helicobacter (NHPH) species in humans. It is associated with chronic gastritis, gastric ulceration and other gastric pathological changes in both hosts. Parietal cells are highly specialized, terminally differentiated epithelial cells responsible for gastric acid secretion and regulation. Dysfunction of these cells is closely associated with gastric pathology and disease...
October 19, 2016: Veterinary Research
Shigeki Kobayashi, Mayumi Ogura, Naohisa Suzawa, Noriyuki Horiki, Masaki Katsurahara, Toru Ogura, Hajime Sakuma
BACKGROUND: The aim of this study was to determine the value of (18)F-FDG uptake on screening PET/CT images for the prediction of Helicobacter pylori (H. pylori) infection and chronic atrophic gastritis. METHODS: Among subjects who underwent (18)F-FDG PET/CT for cancer screening from April 2005 to November 2015, PET/CT images were analyzed in 88 subjects who had gastrointestinal fiberscopy within 6 months. The volumes of interest (VOIs) were placed in the fornix, corpus and antrum of the stomach to determine maximal standardized uptake value (SUVmax) and mean SUV (SUVmean)...
October 18, 2016: BMC Medical Imaging
Purushottam Kumar, Arshad Hasan, Manoj Kumar, Veena Singh
Hydatid cyst is a common health problem of world in sheep grazing area. Liver is the most commonly involved organ. Splenic hydatid cyst is uncommon and its isolated involvement is very rare. We are presenting a case of isolated hydatid cyst of spleen in a sixty one year old female patient with complaints of pain in the left hypochondrium, dyspepsia and features of gastritis for the last 1 year. The diagnosis was confirmed by Contrast enhanced CT scan (CECT). Laparoscopic splenectomy was performed. The aim of this case report is to emphasize that the most important factor in diagnosing splenic hydatid cyst is the awareness of its possibility and the intraoperative precautions which will decrease morbidity and mortality in the postoperative period...
October 12, 2016: International Journal of Surgery Case Reports
Ji Yeon Lim, Yoon Hee Choi, Sun Hwa Lee
Epigastric pain is a common symptom in the emergency department. Most epigastric pain is not fatal, except in acute myocardial infarction, aortic dissection, and abdominal aneurysm rupture. Epigastric pain can also be the only symptom of isolated spontaneous gastric artery dissection. We report the case of a 51-year-old woman diagnosed with neurofibromatosis who initially presented with only epigastric pain. She was initially misdiagnosed with gastritis, treated conservatively, and discharged. Two hours later, she returned to the emergency department with persistent epigastric pain and rebound tenderness in the epigastric area...
June 2016: Clin Exp Emerg Med
Kyung Hee Kim, Chan Gyoo Kim, Young-Woo Kim, Hae Moon, Jee Eun Choi, Soo-Jeong Cho, Jong Yeul Lee, Il Ju Choi
Phlegmonous gastritis is a rare and rapidly progressive bacterial infection of the stomach wall, with a high mortality rate. Antibiotics with or without surgical treatment are required for treatment. We present a case in which phlegmonous gastritis occurred during the diagnostic evaluation of early gastric cancer. The patient showed improvement after antibiotic treatment, but attempted endoscopic submucosal dissection failed because of submucosal pus. We immediately applied argon plasma coagulation since surgical resection was also considered a high-risk procedure because of the submucosal pus and multiple comorbidities...
September 2016: Journal of Gastric Cancer
Daniel Konstantinou, Nina Bertaux-Skeirik, Yana Zavros
The Hedgehog (Hh) signaling pathway not only plays a key part in controlling embryonic development, but in the adult stomach governs important cellular events such as epithelial cell differentiation, proliferation, gastric disease, and regeneration. In particular, Sonic Hedgehog (Shh) signaling has been well studied for its role in gastric physiology and pathophysiology. Shh is secreted from the gastric parietal cells and contributes to the regeneration of the epithelium in response to injury, or the development of gastritis during Helicobacter pylori infection...
October 14, 2016: Current Opinion in Pharmacology
Shuai-Yin Chen, Rong-Guang Zhang, Guang-Cai Duan
Infection with Helicobacter pylori is the strongest risk factor for the development of chronic gastritis, gastric ulcer and gastric carcinoma. The majority of the H. pylori-infected population remains asymptomatic, and only 1% of individuals may progress to gastric cancer. The clinical outcomes caused by H. pylori infection are considered to be associated with bacterial virulence, genetic polymorphism of hosts as well as environmental factors. Most H. pylori strains possess a cytotoxin-associated gene (cag) pathogenicity island (cagPAI), encoding a 120-140 kDa CagA protein, which is the most important bacterial oncoprotein...
October 4, 2016: Oncology Reports
Samir H Assaad-Khalil, Nashwa Nashaat
BACKGROUND: EXCITE (clinical experience of amlodipine and valsartan in hypertension) evaluated the real-world effectiveness and safety of single-pill combinations (SPCs) of amlodipine/valsartan (Aml/Val) and amlodipine/valsartan/hydrochlorothiazide (Aml/Val/HCTZ) in patients with hypertension from the Middle East and Asia. OBJECTIVE: The objective of this study was to report the results of EXCITE study from Egypt, where all patients were prescribed Aml/Val. METHODS: This was a 26-week, observational, multicenter, prospective, non-interventional, open-label study...
September 2016: Drugs—Real World Outcomes
Kwang-Soo Baek, Young-Su Yi, Young-Jin Son, Sulgi Yoo, Nak Yoon Sung, Yong Kim, Sungyoul Hong, Adithan Aravinthan, Jong-Hoon Kim, Jae Youl Cho
BACKGROUND: Although Korean Red Ginseng (KRG) has been traditionally used for a long time, its anti-inflammatory role and underlying molecular and cellular mechanisms have been poorly understood. In this study, the anti-inflammatory roles of KRG-derived components, namely, water extract (KRG-WE), saponin fraction (KRG-SF), and nonsaponin fraction (KRG-NSF), were investigated. METHODS: To check saponin levels in the test fractions, KRG-WE, KRG-NSF, and KRG-SF were analyzed using high-performance liquid chromatography...
October 2016: Journal of Ginseng Research
Jing Wu, Qian Li, Nina Wang, Hong Wei, Chao Li, Guibin Yang
BACKGROUND: MicroRNAs, targeting mRNAs of cancer-associated genes, are often aberrantly expressed in human gastric cancer (GC). AIM: We have examined the possible role and mechanisms of miRNA regulation of Prdx-6 in the development and progression of H. pylori-related gastric mucosal lesions. METHODS: First, miR-24-3p was predicted to target Prdx-6, and this negative regulation was validated by luciferase reporter analyses, Western blot, and quantitative RT-PCR...
October 14, 2016: Digestive Diseases and Sciences
Nurdan Tözün, Eser Vardareli
Gastrointestinal (GI) cancers are the leading cause of mortality worldwide. These cancers are the end result of a complex interplay between gene and environment. Bacteria, parasites, and viruses have been implicated in some cancers. Recent data have put at focus the gut microbiome as the key player firing tumorigenesis. Experimental and human studies have provided evidence on the role of microbiota in cancer development. Although subject to changes in different settings such as antibiotic treatment, diet or lifestyle, our microbiome is quite stable and is capable of increasing susceptibility to cancer or decrease and halt its progression...
November 2016: Journal of Clinical Gastroenterology
Tara A Altepeter, Stephen Shaffer
OBJECTIVES: To quantify the diagnostic yield of upper endoscopy in children with gastroparesis and to develop a clinical model for gastroparesis using common symptoms and screening blood tests. METHODS: We retrospectively reviewed charts of 196 patients aged 4-18yrs evaluated for gastroparesis between 2009 and 2013. All patients completed a standard solid-phase gastric emptying scan and upper endoscopy within a 12-month period. We analyzed gross and histologic endoscopy findings...
October 12, 2016: Journal of Pediatric Gastroenterology and Nutrition
Ahmad Abu Turab Naqvi, Farah Anjum, Faez Iqbal Khan, Asimul Islam, Faizan Ahmad, Md Imtaiyaz Hassan
Helicobacter pylori is a Gram-negative bacteria that is responsible for gastritis in human. Its spiral flagellated body helps in locomotion and colonization in the host environment. It is capable of living in the highly acidic environment of the stomach with the help of acid adaptive genes. The genome of H. pylori 26695 strain contains 1,555 coding genes that encode 1,445 proteins. Out of these, 340 proteins are characterized as hypothetical proteins (HP). This study involves extensive analysis of the HPs using an established pipeline which comprises various bioinformatics tools and databases to find out probable functions of the HPs and identification of virulence factors...
September 2016: Genomics & Informatics
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