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https://www.readbyqxmd.com/read/28230087/nardilysin-regulates-inflammation-metaplasia-and-tumors-in-murine-stomach
#1
Yuto Kimura, Kozo Ikuta, Takeshi Kimura, Tsutomu Chiba, Hiroko Oshima, Masanobu Oshima, Eiichiro Nishi, Hiroshi Seno
Chronic inflammation contributes to a wide variety of human disorders. In the stomach, longstanding gastritis often results in structural alterations in the gastric mucosa, including metaplastic changes and gastric cancers. Therefore, it is important to elucidate factors that are involved in gastric inflammation. Nardilysin (N-arginine dibasic convertase; Nrdc) is a metalloendopeptidase of the M16 family that promotes ectodomain shedding of the precursor forms of various growth factors and cytokines by enhancing the protease activities of a disintegrin and metalloproteinase (ADAM) proteins...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28228842/worldwide-malaria-incidence-and-cancer-mortality-are-inversely-associated
#2
Li Qin, Changzhong Chen, Lili Chen, Ran Xue, Ming Ou-Yang, Chengzhi Zhou, Siting Zhao, Zhengxiang He, Yu Xia, Jianxing He, Pinghua Liu, Nanshan Zhong, Xiaoping Chen
BACKGROUND: Investigations on the effects of malaria infection on cancer mortality are limited except for the incidence of Burkitt's lymphoma (BL) in African children. Our previous murine lung cancer model study demonstrated that malaria infection significantly inhibited tumor growth and prolonged the life span of tumor-bearing mice. This study aims to assess the possible associations between malaria incidence and human cancer mortality. METHODS: We compiled data on worldwide malaria incidence and age-standardized mortality related to 30 types of cancer in 56 countries for the period 1955-2008, and analyzed their longitudinal correlations by a generalized additive mixed model (GAMM), adjusted for a nonlinear year effect and potential confounders such as country's income levels, life expectancies and geographical locations...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28224027/helicobacter-pylori-caga-induced-interleukin-8-secretion-in-gastric-epithelial-cells
#3
Zeinab Fazeli, Masoud Alebouyeh, Mostafa Rezaei Tavirani, Masoumeh Azimirad, Abbas Yadegar
AIM: Since, contradictory data have been reported about the effect of diverse variants of H. pylori virulence factors on IL-8 induction, we aimed to analyze the effect of this diversity on levels of IL-8 secretion in AGS cell line. BACKGROUND: Helicobacter pylori colonizes the human stomach and induces the activation of inflammatory cytokines, including interleukin (IL)-8, in the gastric mucosa. This induction promotes neutrophil and monocyte recruitment that causes gastric tissue damage...
December 2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28223429/cancer-mortality-in-hispanic-ethnic-groups
#4
Paulo S Pinheiro, Karen E Callahan, Rebecca L Siegel, Hongbin Jin, Cyllene R Morris, Edward J Trapido, Scarlett Lin Gomez
Background: Cancer is the leading cause of death among Hispanics. The burden of cancer mortality within Hispanic groups has not been well quantified.Methods: Cancer mortality rates for 2008-2012 in Florida were computed on the basis of race, ethnicity, and birthplace, specifically focusing on major Hispanic groups-Mexicans, Puerto Ricans, Cubans, Central Americans, South Americans, and Dominicans. Age-adjusted mortality rate ratios derived from negative binomial regression were used to compare Hispanics, aggregated and by group, to nonHispanic whites (NHW)...
February 21, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28219214/-analysis-of-risk-factors-for-postsurgical-gastroparesis-syndrome-pgs-after-operation-for-gastric-cancer
#5
D L Liu, X W Zhang, F Q Lyu
Objective: To investigate the risk factors for postsurgical gastroparesis syndrome (PGS) after surgery for stomach cancer. Methods: A total of 684 patients with gastric cancer who underwent surgery for stomach cancer from Jan. 1, 2010 to Dec. 31, 2014 in Tai'an Tumor Prevention and Treatment Hospital, including 475 males and 209 females, with an average age of 59.9 years were identified and included in this study. There were 206 cases of gastric cardia and gastric fundus cancers and 478 cases of gastric antrum cancer...
February 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28217237/-caught-by-the-eye-of-sound-epigastric-swelling-due-to-xiphisternal-tuberculosis
#6
Shabnam Bhandari Grover, Sumit Arora, Amit Kumar, Hemal Grover, Amit Katyan, Deepthi Mohan Nair
BACKGROUND: Common causes of an epigastric mass include hepatomegaly, pancreatic pseudocyst and epigastric hernia, less common causes being carcinoma of the stomach or pancreas, whereas diseases of the sternum presenting as an epigastric swelling is extremely uncommon. We report a case of tubercular infection of the sternum located in the xiphoid process resulting in its presentation as an epigastric swelling. CASE REPORT: A 30-year-old immunocompetent woman with complaints of an epigastric swelling and undocumented pyrexia for four months was referred for sonographic evaluation with a clinical suspicion of an incompletely treated liver abscess...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28217122/listeria-monocytogenes-10403s-arginine-repressor-argr-finely-tunes-arginine-metabolism-regulation-under-acidic-conditions
#7
Changyong Cheng, Zhimei Dong, Xiao Han, Jing Sun, Hang Wang, Li Jiang, Yongchun Yang, Tiantian Ma, Zhongwei Chen, Jing Yu, Weihuan Fang, Houhui Song
Listeria monocytogenes is able to colonize human and animal intestinal tracts and to subsequently cross the intestinal barrier, causing systemic infection. For successful establishment of infection, L. monocytogenes must survive the low pH environment of the stomach. L. monocytogenes encodes a functional ArgR, a transcriptional regulator belonging to the ArgR/AhrC arginine repressor family. We aimed at clarifying the specific functions of ArgR in arginine metabolism regulation, and more importantly, in acid tolerance of L...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28212834/death-associated-protein-1-dap-1-positively-regulates-virus-replication-and-apoptosis-of-hemocytes-in-shrimp-marsupenaeus-japonicus
#8
Wen-Li Xia, Li-Hua Kang, Chang-Bin Liu, Cui-Jie Kang
Death-associated protein 1 (DAP1) is a small proline-rich cytoplasmic protein that functions both in the apoptosis and autophage process of mammalian and in the clinical cancer of human. However, little knowledge is known about the homologue gene of DAP1 and its roles in the physiological process of invertebrates. In this paper, we report a novel function of DAP1 in the antivirus immunity of shrimp. A homologue gene of DAP1 was cloned from Marsupenaeus japonicus and named as Mjdap-1. The full-length of Mjdap-1 was 1761 bp with a 309 bp open reading frame that encoded 102 amino acids...
February 14, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28203472/cyanoacrylate-associated-foreign-body-granulomatous-gastritis-a-report-of-three-cases
#9
Gunes Guner, Olcay Kurtulan, Taylan Kav, Cenk Sokmensuer, Gokhan Gedikoglu, Aytekin Akyol
Granulomas are rarely seen in gastric biopsies mostly as an involvement of granulomatous diseases like sarcoidosis, Crohn's disease, infections, neoplasms, and vasculitis. Here, we claim cyanoacrylate as a foreign body type granuloma-causing agent in the stomach after vascular embolisation. We present cyanoacrylate associated gastric changes of three cases: two endoscopic biopsies and one gastric resection. In two cases, cyanoacrylate associated ulcers and granulomatous inflammation were observed in gastric mucosal biopsies following endoscopic examination after 7 months and 6 years of the glue injections, respectively...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28195032/ph-responsive-carriers-for-oral-drug-delivery-challenges-and-opportunities-of-current-platforms
#10
REVIEW
Lin Liu, WenDong Yao, YueFeng Rao, XiaoYang Lu, JianQing Gao
Oral administration is a desirable alternative of parenteral administration due to the convenience and increased compliance to patients, especially for chronic diseases that require frequent administration. The oral drug delivery is a dynamic research field despite the numerous challenges limiting their effective delivery, such as enzyme degradation, hydrolysis and low permeability of intestinal epithelium in the gastrointestinal (GI) tract. pH-Responsive carriers offer excellent potential as oral therapeutic systems due to enhancing the stability of drug delivery in stomach and achieving controlled release in intestines...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28194462/designing-an-efficient-multi-epitope-oral-vaccine-against-helicobacter-pylori-using-immunoinformatics-and-structural-vaccinology-approaches
#11
Navid Nezafat, Mahboobeh Eslami, Manica Negahdaripour, Mohammad Reza Rahbar, Younes Ghasemi
Helicobacter pylori is the cunning bacterium that can live in the stomachs of many people without any symptoms, but gradually can lead to gastric cancer. Due to various obstacles, which are related to anti-H. pylori antibiotic therapy, recently developing an anti-H. pylori vaccine has attracted more attention. In this study, different immunoinformatics and computational vaccinology approaches were employed to design an efficient multi-epitope oral vaccine against H. pylori. Our multi-epitope vaccine is composed of heat labile enterotoxin IIc B (LT-IIc) that is used as a mucosal adjuvant to enhance vaccine immunogenicity for oral immunization, cartilage oligomeric matrix protein (COMP) to increase vaccine stability in acidic pH of gut, one experimentally protective antigen, OipA, and two hypothetical protective antigens, HP0487 and HP0906, and "CTGKSC" peptide motif that target epithelial microfold cells (M cells) to enhance vaccine uptake from the gut barrier...
February 14, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28194260/anti-bacterial-effects-of-enzymatically-isolated-sialic-acid-from-glycomacropeptide-in-a-helicobacter-pylori-infected-murine-model
#12
Hye-Ji Noh, Hong Bum Koh, Hee-Kyoung Kim, Hyang Hyun Cho, Jeongmin Lee
BACKGROUND/OBJECTIVES: Helicobacter pylori (H. pylori) colonization of the stomach mucosa and duodenum is the major cause of acute and chronic gastroduodenal pathology in humans. Efforts to find effective anti-bacterial strategies against H. pylori for the non-antibiotic control of H. pylori infection are urgently required. In this study, we used whey to prepare glycomacropeptide (GMP), from which sialic acid (G-SA) was enzymatically isolated. We investigated the anti-bacterial effects of G-SA against H...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28181350/no-evidence-of-a-role-for-mitochondrial-complex-i-in-helicobacter-pylori-pathogenesis
#13
Garrett Z Ng, Bi-Xia Ke, Adrienne Laskowski, David R Thorburn, Philip Sutton
BACKGROUND: Complex I is the first enzyme complex in the mitochondrial respiratory chain, responsible for generating a large fraction of energy during oxidative phosphorylation. Recently, it has been identified that complex I deficiency can result in increased inflammation due to the generation of reactive oxygen species by innate immune cells. As a reduction in complex I activity has been demonstrated in human stomachs with atrophic gastritis, we investigated whether complex I deficiency could influence Helicobacter pylori pathogenesis...
February 9, 2017: Helicobacter
https://www.readbyqxmd.com/read/28181269/-99m-tc-tazobactam-a-novel-infection-imaging-agent-radiosynthesis-quality-control-biodistribution-and-infection-imaging-studies
#14
Rashid Rasheed, Syed Ali Raza Naqvi, Syed Jawad Hussain Gillani, Ameer Fawad Zahoor, Asif Jielani, Nidda Saeed
The radiolabeled drug (99m) Tc-tazobactam ((99m) Tc-TZB) was developed and assessed as an infection imaging agent in P. aeruginosa and S. enterica infection induced animal models by comparing with inflammation induced animal models. Radiosynthesis of (99m) Tc-TZB was assessed while changing ligand concentration, reducing agent concentration, pH and reaction time while keeping radioactivity constant (~370 MBq). Percent labeling of the resulting complex was measured using paper chromatography and instant thin layer chromatography (ITLC-SG)...
February 8, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28177288/novel-urease-negative-helicobacter-sp-h-enhydrae-sp-nov-isolated-from-inflamed-gastric-tissue-of-southern-sea-otters
#15
Zeli Shen, Francesca Batac, Anthony Mannion, Melissa A Miller, Vasudevan Bakthavatchalu, Calvin Ho, Sean Manning, Bruce J Paster, James G Fox
A total of 31 sea otters Enhydra lutris nereis found dead or moribund (and then euthanized) were necropsied in California, USA. Stomach biopsies were collected and transected with equal portions frozen or placed in formalin and analyzed histologically and screened for Helicobacter spp. in gastric tissue. Helicobacter spp. were isolated from 9 sea otters (29%); 58% (18 of 31) animals were positive for helicobacter by PCR. The Helicobacter sp. was catalase- and oxidase-positive and urease-negative. By electron microscopy, the Helicobacter sp...
February 8, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28166712/experimental-acute-infection-of-alpacas-with-bovine-viral-diarrhea-virus-1-subgenotype-b-alters-peripheral-blood-and-galt-leukocyte-subsets
#16
Christina L Topliff, Abdulrahman A Alkheraif, Charles A Kuszynski, William C Davis, David J Steffen, Jack A Schmitz, Kent M Eskridge, Bryan Charleston, Jamie N Henningson, Clayton L Kelling
Bovine viral diarrhea virus (BVDV) is a pathogen in cattle and alpacas ( Vicugna pacos), causing acute and persistent BVDV infections. We characterized the effect of acute BVDV infection on the immune system of alpacas by determining lymphocyte subpopulations in peripheral blood and gut-associated lymphoid tissues (GALT) as well as serum interferon levels. Alpacas were experimentally infected with BVDV-1b (strain CO-06). Peripheral blood leukocytes were isolated at 0, 3, 6, and 9 d postinfection (dpi), and leukocytes of GALT at 9 dpi, and evaluated using flow cytometry...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28161294/pantoea-calida-bacteremia-in-an-adult-with-end-stage-stomach-cancer-under-inpatient-care
#17
Kageto Yamada, Machiko Kashiwa, Katsumi Arai, Kazuya Satoyoshi, Hiroyuki Nishiyama
Pantoea calida is a gram-negative bacillus that was first identified in 2010. Here, we describe the first known case of P. calida bacteremia in a 77-year-old woman with end-stage stomach cancer under inpatient care. The patient was admitted to our hospital for pain after receiving anti-cancer therapy at outpatient facility. Thirteen days after admission, her temperature rose to 39.6 °C. A blood culture was ordered for suspected bacterial infection, and the patient was treated empirically with ampicillin/sulbactam...
February 2, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28160213/a-multicenter-single-arm-phase-ii-clinical-trial-of-bendamustine-monotherapy-in-patients-with-chronic-lymphocytic-leukemia-in-japan
#18
Yoshiaki Ogawa, Koji Izutsu, Toru Kiguchi, Ilseung Choi, Yoshifusa Takatsuka, Kiyoshi Ando, Junji Suzumiya
The present study was intended to examine the efficacy and safety of bendamustine monotherapy in patients with previously untreated chronic lymphocytic leukemia (CLL) for whom treatment with fludarabine (FLU) was not suitable, and in FLU-naïve patients with relapsed/refractory CLL. We intravenously administered bendamustine 100 mg/m(2)/day on days 1 and 2 of each 28-day cycle to 10 patients (eight previously untreated; two relapsed/refractory) up to six cycles. The primary endpoint was overall response rate (ORR: partial remission or better) according to the 2008 International Workshop on the CLL guidelines...
February 3, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28155804/the-pathogenesis-of-proventricular-dilatation-disease
#19
Ian Tizard, H L Shivaprasad, Jianhua Guo, Samer Hameed, Judith Ball, Susan Payne
Bornaviruses cause neurologic diseases in several species of birds, especially parrots, waterfowl and finches. The characteristic lesions observed in these birds include encephalitis and gross dilatation of the anterior stomach - the proventriculus. The disease is thus known as proventricular dilatation disease (PDD). PDD is characterized by extreme proventricular dilatation, blockage of the passage of digesta and consequent death by starvation. There are few clinical resemblances between this and the bornaviral encephalitides observed in mammals...
December 2016: Animal Health Research Reviews
https://www.readbyqxmd.com/read/28151895/association-between-il-1%C3%AE-polymorphisms-and-gastritis-risk-a-meta-analysis
#20
Xiaoming Sun, Hongxing Cai, Zhouru Li, Shanshan Li, Wenjiang Yin, Guokai Dong, Jinxia Kuai, Yihui He, Jing Jia
BACKGROUND: Helicobacter pylori (H. pylori) infection of the human stomach regularly leads to chronic gastric inflammation. The cytokine gene interleukin (IL)-1β has been implicated in influencing the pathology of inflammation induced by H. pylori infection. Currently, several studies have been carried out to investigate the association of IL-1β-511 (rs16944) and IL-1β-31 (rs1143627) polymorphisms with gastritis risk; however, the results are inconsistent and inconclusive. To assess the effect of IL-1β polymorphisms on gastritis susceptibility, we conducted a meta-analysis...
February 2017: Medicine (Baltimore)
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