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https://www.readbyqxmd.com/read/28726772/mice-lacking-nf-%C3%AE%C2%BAb1-exhibit-marked-dna-damage-responses-and-more-severe-gastric-pathology-in-response-to-intraperitoneal-tamoxifen-administration
#1
Michael D Burkitt, Jonathan M Williams, Tristan Townsend, Rachael Hough, DMark Pritchard
Tamoxifen (TAM) has recently been shown to cause acute gastric atrophy and metaplasia in mice. We have previously demonstrated that the outcome of Helicobacter felis infection, which induces similar gastric lesions in mice, is altered by deletion of specific NF-κB subunits. Nfkb1(-/-) mice developed more severe gastric atrophy than wild-type (WT) mice 6 weeks after H. felis infection. In contrast, Nfkb2(-/-) mice were protected from this pathology. We therefore hypothesized that gastric lesions induced by TAM may be similarly regulated by signaling via NF-κB subunits...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28722090/-evaluation-of-a-new-closure-technique-of-large-defects-after-endoscopic-full-thickness-resection
#2
Xiao Liu, Lizhou Dou, Yong Liu, Shun He, Yueming Zhang, Xinying Yu, Yan Ke, Xudong Liu, Ruigang Wang, Guiqi Wang
OBJECTIVE: To investigate the security and efficacy of a new endoscopic closure method of large defects after endoscopic full-thickness resection (EFTR) double purse-string suture using two endoloops and metallic clips via single-channel endoscopy. METHODS: Clinical data of 23 cases with submucosal tumors (SMT) who received endoscopic resection from June 2015 to July 2016 in our National Cancer Center were collected. For gastric and esophageal SMTs or the mucosa layer injured during submucosal tunneling endoscopic resection (STER), double purse-string suture was conducted after EFTR...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28720586/a-malt-lymphoma-prognostic-index-generated-from-the-dataset-of-the-ielsg-19-prospective-clinical-trial
#3
Catherine Thieblemont, Luciano Cascione, Annarita Conconi, Barbara Kiesewetter, Markus Raderer, Gianluca Gaidano, Maurizio Martelli, Daniele Laszlo, Bertrand Coiffier, Armando Lopez Guillermo, Valter Torri, Franco Cavalli, Peter W Johnson, Emanuele Zucca
There are no widely accepted prognostic indices for extranodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT lymphoma). This study aimed to develop and validate a specific prognostic tool to personalize and optimize lymphoma treatment of patients with MALT lymphoma. A prognostic index was built by Cox regression (stepwise selection) using data from 401 patients enrolled in the international randomized IELSG-19 trial (NCT 00210353). A validation set, including 633 patients, was obtained by merging three independent cohorts of MALT lymphoma patients...
July 18, 2017: Blood
https://www.readbyqxmd.com/read/28719351/ccat1-expressed-in-malignant-and-pre-malignant-human-gastric-tissues
#4
X Li, Y Zhou, H Qian
CCAT1 has been reported to implicate in various human malignancies. However, its expression in the oncogenesis of gastric cancer (GC) remains unknown. Quantitative reverse transcription (RT)-qPCR assay was performed to detect the expression of CCAT1 in 68cases of GC tissues,paired tumor-proximal gastric mucosa and normal gastric mucosa, 19 cases of gastric intraepithelial neoplasia (GIN), and the sera of these 68 GC patients and 22 healthy volunteers. And the relationship between CCAT1 and clinicopathologic features of GC patients were analyzed...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28718685/comparison-of-patient-outcomes-with-and-without-stenting-tube-in-pancreaticoduodenectomy
#5
Xiong Bin, Bai Lian, Gong Jianping, Tu Bin
Objective To evaluate the clinical effect of different pancreaticojejunostomy techniques in the treatment of pancreaticoduodenectomy and investigate the applicability of pancreaticojejunostomy without pancreatic duct stenting. Methods From January 2012 to December 2015, 87 patients who underwent pancreaticoduodenectomy were randomly assigned to either Group A (duct-to-mucosa anastomosis with pancreatic duct stenting, n = 43) or Group B (pancreas-jejunum end-to-side anastomosis without stenting (n = 44)...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28714360/knockdown-of-calponin-2-suppressed-cell-growth-in-gastric-cancer-cells
#6
Jianwei Hu, Wenjuan Xie, Lingyue Shang, Xi Yang, Quanlin Li, Meidong Xu, Jianming Dou, Yiren Zhou, Weixin Niu, Yanhua Wu
Calponin family members are actin filament-associated regulatory proteins with distinct expression patterns. Previous studies on CNN2 (calponin 2) have demonstrated that CNN2 is expressed in a broad range of tissues and cell types, exhibiting potential regulatory roles in a number of cellular activities, including cell proliferation, cell migration, and platelet adhesion. In this work, we found that both messenger RNA and protein expression levels of CNN2 were remarkably upregulated in 60%-70% of gastric cancer tissues by comparison with those of neighboring non-tumorous mucosa...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28711030/carvedilol-can-attenuate-histamine-induced-paw-edema-and-formaldehyde-induced-arthritis-in-rats-without-risk-of-gastric-irritation
#7
Faf Sayed Osman, Dina Ahmed Labib, Mahmoud M Kamel
BACKGROUND AND AIM: Rheumatoid arthritis treatment aims to control joint damage and any associated complications such as cardiovascular disease. Most anti-inflammatory drugs have a high tendency to cause gastro-intestinal irritation. The present study is designed to investigate the anti-inflammatory effect of carvedilol and to study its effect on gastric mucosa. EXPERIMENTAL APPROACH: Lornoxicam (1.3mg/kg) or carvedilol (10mg/kg) was administrated orally 1h before histamine injection into animals of a histamine-induced paw edema model and orally daily for 11days into animals of a formaldehyde-induced arthritis model...
July 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28710883/an-atypical-type-i-gastric-neuroendocrine-tumor
#8
Andrada-Viorela Gheorghe, Mihai Rimbas, Octav Ginghina, Andrada Spanu, Theodor Alexandru Voiosu
BACKGROUND: Gastric neuroendocrine tumors(GI-NETs) are rare lesions, usually discovered incidentally during endoscopy. Based on their pathology, there are 4 types of GI-NETs. Type I are multiple small polypoid lesions with central ulceration located in the gastric body or the fundus, associated with atrophic gastritis usually noninvasive and very rarely metastatic. We report on a rare case of a gastric NET arising from the muscularis propria layer of the pyloric ring. CASE REPORT: We present the case of a 65-year old woman with a history of alcoholic cirrhosis, investigated for melena...
July 14, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28710861/differential-protein-modulation-by-ketoprofen-and-ibuprofen-underlines-different-cellular-response-by-gastric-epithelium
#9
L Brandolini, M d'Angelo, A Antonosante, S Villa, L Cristiano, V Castelli, E Benedetti, M Catanesi, A Aramini, A Luini, S Parashuraman, E Mayo, A Giordano, A Cimini, M Allegretti
Ketoprofen L-lysine salt (KLS), is widely used due to its analgesic efficacy and tolerability, and L-lysine was reported to increase the solubility and the gastric tolerance of ketoprofen. In a recent report, L-lysine salification has been shown to exert a gastroprotective effect due to its specific ability to counteract the NSAIDs-induced oxidative stress and up-regulate gastroprotective proteins. In order to derive further insights into the safety and efficacy profile of KLS, in this study we additionally compared the effect of lysine and arginine, another amino acid counterion commonly used for NSAIDs salification, in control and in ethanol challenged human gastric mucosa model...
July 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28710240/a-rare-case-of-gastric-mixed-adenoneuroendocrine-carcinoma-manec-with-gastric-helicobacter-pylori-negative-mucosa-associated-lymphoid-tissue-malt-lymphoma
#10
Babikir Kheiri, Mohammed Osman, Douglas Congdon, Ghassan Bachuwa
No abstract text is available yet for this article.
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28702984/regenerative-medicine-in-the-treatment-of-gastro-esophageal-reflux-disease-and-laryngo-pharyngeal-reflux-from-research-to-cure
#11
S E Aragona, G Mereghetti, M Bianchetti, B Mangiavillano, T Zurlo, J Lotti, I La Mantia, K França, T Lotti
We present our observational study on 40 patients treated with the Hana medical device that releases magnesium alginate, performing a lubricating and hydrating action. This device is in the form of a gel, with topical action to contrast gastroesophageal reflux and to exert a mechanical role of protection of the mucosal tissues (mouth-pharyngo-esophageal mucosa and gastric mucose.). Forty patients were recruited aged between 22- and 72-years-old with painful dyspeptic Gastro Esophageal Reflux Disease (GERD) symptomatology in acute or in clinical phase (25 patients) and with pharyngo-laryngo-tracheal symptomatology (15 patients)...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28702753/magnifying-nbi-patterns-of-gastric-mucosa-after-helicobacter-pylori-eradication-and-its-potential-link-to-the-gastric-cancer-risk
#12
Tomomitsu Tahara, Sayumi Tahara, Tetsuya Tuskamoto, Noriyuki Horiguchi, Dai Yoshida, Tomohiko Kawamura, Masaaki Okubo, Mitsuo Nagasaka, Yoshihito Nakagawa, Makoto Urano, Makoto Kuroda, Tomoyuki Shibata, Naoki Ohmiya
BACKGROUND: Gastric cancer develops after successful H. pylori eradication in patients with severe atrophic gastritis. We classified atrophic and non-atrophic mucosa of gastric body using magnifying NBI endoscopy in patients after successful H. pylori eradication. MATERIALS AND METHODS: One hundred and twenty-five patients after successful H. pylori eradication (median period after eradication: 36 months) were enrolled. Magnifying NBI patterns in the uninvolved gastric body were divided into the following: restored-small, round pits, accompanied with honeycomb-like subepithelial capillary networks; atrophic-well-demarcated oval or tubulovillous pits with clearly visible coiled or wavy vessels...
July 12, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28701895/decreased-serum-concentration-of-total-igg-is-related-to-tumor-progression-in-gastric-cancer-patients
#13
Hiroaki Saito, Kozo Miyatani, Yusuke Kono, Yuki Murakami, Hirohiko Kuroda, Tomoyuki Matsunaga, Yoji Fukumoto, Shuichi Takano, Tomohiro Osaki, Yoshiyuki Fujiwara
BACKGROUND: There is accumulating evidence that shows cell-mediated immunity regulated by T cells is impaired in cancer patients. Unfortunately, the mechanisms by which B cells participate in tumor immunity are only partially understood. METHODS: The serum concentration of Immunoglobulin G (IgG) was measured by Enzyme-Linked ImmunoSorbent Assay (ELISA) in patients with gastric cancer. Immunohistochemistry was also performed using the anti- cluster of differentiation (CD)134 antibody to evaluate the number of plasma cells in the tumor tissue...
June 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28701149/the-prevalence-of-gastric-heterotopia-of-the-proximal-esophagus-is-underestimated-but-preneoplasia-is-rare-correlation-with-barrett-s-esophagus
#14
Ulrich Peitz, Michael Vieth, Matthias Evert, Jovana Arand, Albert Roessner, Peter Malfertheiner
BACKGROUND: The previously reported prevalence of gastric heterotopia in the cervical esophagus, also termed inlet patch (IP), varies substantially, ranging from 0.18 to 14%. Regarding cases with adenocarcinoma within IP, some experts recommend to routinely obtain biopsies from IP for histopathology. Another concern is the reported relation to Barrett's esophagus. The objectives of the study were to prospectively determine the prevalence of IP and of preneoplasia within IP, and to investigate the association between IP and Barrett's esophagus...
July 12, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28699830/cag-pathogenicity-island-dependent-up-regulation-of-matrix-metalloproteinase-7-in-infected-patients-with-helicobacter-pylori
#15
Marzieh Sadeghiani, Nader Bagheri, Heshmat Shahi, Somayeh Reiisi, Ghorbanali Rahimian, Reza Rashidi, Majid Mahsa, Mohammedhadi Shafigh, Elaheh Salimi, Mahmoud Rafieian-Kopaei, Morteza Hashemzadeh-Chaleshtori, Hedayatollah Shirzad
Helicobacter pylori (H. pylori) infection has been involved in the pathogenesis of most important gastroduodenal diseases. Matrix metalloproteinases (MMPs) are a family of secreted, zinc-dependent enzymes collectively capable of degradation of extracellular matrix (ECM) and key player in various inflammatory diseases. Therefore, we examined MMP-7 mRNA levels in the gastric mucosa of patients with H. pylori infection and evaluated the effects of virulence factors, such as vacA (vacuolating cytotoxin A) and cagA (cytotoxin-associated gene) in H...
July 12, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28699598/role-of-toll-like-receptor-10-gene-polymorphism-and-gastric-mucosal-pattern-in-patients-with-chronic-gastritis
#16
Taweesak Tongtawee, Theeraya Bartpho, Wareeporn Wattanawongdon, Chavaboon Dechsukhum, Wilairat Leeanansaksiri, Likit Matrakool, Sukij Panpimanmas
BACKGROUND/AIMS: Helicobacter pylori stimulates the host's toll-like receptors (TLRs). Single-nucleotide polymorphism (SNP) of TLRs is related to the manipulation of regulatory cytokines and also implicated in the varied outcomes of the inflammatory response, including the development of precancerous lesions of gastric mucosa and disease progression. We hypothesized that TLR10 rs10004195 polymorphism is associated with gastric mucosal patterns. MATERIALS AND METHODS: TLR10 rs10004195 polymorphisms were identified in a total of 400 gastritis patients using the TagMan SNP genotyping assay...
July 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28698866/analysis-of-gastric-body-microbiota-by-pyrosequencing-possible-role-of-bacteria-other-than-helicobacter-pylori-in-the-gastric-carcinogenesis
#17
Sung-Hwa Sohn, Nayoung Kim, Hyun Jin Jo, Jaeyeon Kim, Ji Hyun Park, Ryoung Hee Nam, Yeong-Jae Seok, Yeon-Ran Kim, Dong Ho Lee
BACKGROUND: Gastric microbiota along with Helicobacter pylori (HP) plays a key role in gastric disease. The aim of our study is to investigate the difference of human gastric microbiota between antrum and body according to disease (control vs. gastric cancer) and HP status. METHODS: Each antrum and body biopsy was collected from 12 subjects at Seoul National University Bundang Hospital. Gastric microbiota was analyzed by bar-coded 454 pyrosequencing of the 16S rRNA gene...
June 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28698666/modelling-person-to-person-transmission-in-an-enterovirus-a71-orally-infected-hamster-model-of-hand-foot-and-mouth-disease-and-encephalomyelitis
#18
Win Kyaw Phyu, Kien Chai Ong, Kum Thong Wong
Enterovirus A71 (EV-A71) causes hand-foot-and-mouth disease (HFMD), which may be complicated by fatal encephalomyelitis. Although fecal-oral or oral-oral routes are important in person-to-person transmission, how viral shedding and exposure may predispose individuals to infection remains unknown. We investigated person-to-person transmission by using a model of HFMD and encephalomyelitis based on EV-A71 oral infection of 2-week-old hamsters. Animals (index animals) infected with 10(4) 50% cell culture infective doses of virus uniformly developed severe disease four days post-infection (dpi), whereas littermate contacts developed severe disease after six to seven days of exposure to index animals...
July 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28695630/a-pilot-phase-ii-study-of-ofatumumab-monotherapy-for-extranodal-marginal-zone-b-cell-lymphoma-of-the-mucosa-associated-lymphoid-tissue-malt-lymphoma
#19
Barbara Kiesewetter, Ortrun Neuper, Marius E Mayerhoefer, Werner Dolak, Julius Lukas, Ingrid Simonitsch-Klupp, Markus Raderer
These are the final results of the Ofatumumab in MALT lymphoma study (O-MA 1), a pilot phase II trial evaluating the capacity and safety of ofatumumab to induce objective responses in patients with Helicobacter pylori eradication refractory or extragastric MALT lymphoma. Ofatumumab was given at 4 weekly doses (1000 mg) followed by 4 doses at 2-month intervals starting at week 8. According to protocol, a total of 16 patients were recruited (median age 69 years; range 38-85). Thirty one percent (5/16) of patients had primary gastric MALT lymphoma while the remaining 69% (11/16) presented with extragastric manifestations...
July 10, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28694656/helicobacter-pylori-baba-in-adaptation-for-gastric-colonization
#20
REVIEW
Shamshul Ansari, Yoshio Yamaoka
Helicobacter pylori (H. pylori) as a causative agent of gastric complications, is well adapted for the colonization of gastric mucosa. Although the infectious process depends on several factors, the adhesion to the gastric mucosa is the first and important step. Among several outer membrane proteins, BabA is one of the significant protein involving in many inflammatory processes in addition to its role in the attachment for the persistent colonization. We performed a PubMed search using the key words: "babA", "pylori", "gastric complications", "homologous recombination", "slipped strand mispairing"; a total of 249 articles were displayed...
June 21, 2017: World Journal of Gastroenterology: WJG
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