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H. Pylori

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https://www.readbyqxmd.com/read/29235736/primary-and-secondary-antibiotic-resistance-of-helicobacter-pylori-in-israeli-children-and-adolescents
#1
Michal Kori, Jacob Yahav, Rita Berdinstein, Haim Shmuely
BACKGROUND: Empiric treatment for Helicobacter pylori is influenced by antibiotic susceptibility of infecting strains. A rise in the resistance rate to clarithromycin and metronidazole has been reported in pediatric populations. OBJECTIVES: To assess the primary and secondary antibiotic resistance of H. pylori isolates in Israeli children and adolescents. METHODS: A retrospective review of H. pylori isolates cultured from antral biopsies of consecutive children aged 1 to 18 years, who were referred to the Pediatric Gastroenterology Unit, Kaplan Medical Center, over a 2...
December 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29235197/superoxide-dismutase-from-helicobacter-pylori-suppresses-the-production-of-pro-inflammatory-cytokines-during-in-vivo-infection
#2
Andrew Stent, Alison L Every, Yok T Chionh, Garrett Z Ng, Philip Sutton
BACKGROUND: Helicobacter pylori has undergone considerable adaptation to allow chronic persistence within the gastric environment. While H. pylori-associated diseases are driven by an excessive inflammation, severe gastritis is detrimental to colonization by this pathogen. Hence, H. pylori has developed strategies to minimize the severity of gastritis it triggers in its host. Superoxide dismutase (SOD) is well known for its role in protecting against oxidative attack; less recognized is its ability to inhibit immunity, shown for SOD from mammalian sources and those of some bacterial species...
December 13, 2017: Helicobacter
https://www.readbyqxmd.com/read/29233672/time-latencies-of-helicobacter-pylori-eradication-after-peptic-ulcer-and-risk-of-recurrent-ulcer-ulcer-adverse-events-and-gastric-cancer-a-population-based-cohort-study
#3
Emma Sverdén, Nele Brusselaers, Karl Wahlin, Jesper Lagergren
BACKGROUND: Helicobacter pylori (H pylori) is associated with peptic ulcer disease and gastric cancer. AIM: To test how various lengths of delays in H pylori eradication therapy influence the risk of recurrent peptic ulcer, ulcer adverse events and gastric cancer. METHODS: This population-based nationwide Swedish cohort study included 29,032 patients receiving H pylori eradication therapy after peptic ulcer disease in 2005-2013. Pre-defined time intervals between date of peptic ulcer diagnosis and date of eradication therapy were analysed in relation to study outcomes...
December 9, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29232943/effect-of-helicobacter-pylori-eradication-on-the-regression-of-gastric-polyps-in-national-cancer-screening-program
#4
Su Youn Nam, Bum Joon Park, Kum Hei Ryu, Ji Hyung Nam
Background/Aims: Western guidelines recommend Helicobacter pylori eradication in H. pylori-associated gastric polyps; however, there is no standard guideline in Korea. The aim of this study is to assess the effect of H. pylori eradication on the regression of gastric hyperplastic polyps in National Cancer Screening Cohort, representative of general population. Methods: Among participants in National Cancer Screening Program, subjects who had H. pylori positive gastric hyperplastic polyps less than 10 mm and underwent follow-up endoscopy and H...
December 14, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29230485/-importance-of-functional-diagnostics-in-gastroenterology
#5
REVIEW
M Hollenbach, A Hoffmeister, J Rosendahl, J Mössner
In this review article important and frequently used investigation methods for gastrointestinal functional diagnostics are presented. Some other rarely used special investigations are also explained. The hydrogen breath test is simple to carry out, ubiquitously available and enables the detection of lactose, fructose and sorbitol malabsorption. Furthermore, by the application of glucose, the test can be carried out when there is a suspicion of abnormal intestinal bacterial colonization and using lactulose for measuring small intestinal transit time...
December 11, 2017: Der Internist
https://www.readbyqxmd.com/read/29229727/high-salt-conditions-alter-transcription-of-helicobacter-pylori-genes-encoding-outer-membrane-proteins
#6
John T Loh, Amber C Beckett, Matthew B Scholz, Timothy L Cover
Helicobacter pylori infection and high dietary salt intake are risk factors for the development of gastric adenocarcinoma. One possible mechanism by which a high salt diet could influence gastric cancer risk is by modulating H. pylori gene expression. In this study, we utilized RNA-seq methodology to compare the transcriptional profiles of H. pylori grown in media containing different concentrations of sodium chloride. We identified 118 differentially expressed genes (65 upregulated and 53 downregulated in response to high salt conditions), including multiple members of 14 operons...
December 11, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29227738/antibiotic-resistance-of-helicobacter-pylori-in-iranian-children-a-systematic-review-and-meta-analysis
#7
Arshid Yousefi-Avarvand, Hamid Vaez, Mohsen Tafaghodi, Amir Hossein Sahebkar, Mohsen Arzanlou, Farzad Khademi
Antibiotic therapy for children infected with Helicobacter pylori is important. However, resistance to antibiotics is one of the main causes of treatment failure. This study was designed to evaluate the prevalence pattern of antibiotic resistance of H. pylori in Iranian children using a systematic review and meta-analysis of literature. A computerized search (until June 10, 2017) using related keywords in the national and international databases was performed. A total of 261 original articles on antibiotic resistance of H...
December 11, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29227536/microrna-222-3p-associated-with-helicobacter-pylori-targets-hipk2-to-promote-cell-proliferation-invasion-and-inhibits-apoptosis-in-gastric-cancer
#8
Xiaoyan Tan, Haiying Tang, Jian Bi, Na Li, Yujie Jia
Gastric cancer ranks as the second leading cause of malignancy-related death worldwide, and always diagnosed at advanced stage. MicroRNA-222-3p (miR-222-3p) is aberrantly upregulated in various malignant tumors including gastric cancer, but its role and underlying molecular mechanisms in gastric cancer remain largely unknown. Helicobacter pylori (H. pylori) infection acts as a trigger in the development of gastric cancer, and increasing evidence suggests that H. pylori affects microRNA expression. In this study, gastric cancer tissue samples were divided into H...
December 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29226407/editorial-recurrence-of-helicobacter-pylori-infection-still-the-same-after-all-these-years%C3%A2-authors-reply
#9
EDITORIAL
Y Hu, J-H Wan, X-Y Li, Y Zhu, D Y Graham, N-H Lu
No abstract text is available yet for this article.
January 2018: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29226140/prevalence-of-helicobacter-pylori-vaca-genotypes-and-caga-gene-in-dental-plaque-of-asymptomatic-mexican-children
#10
Alejandra Mendoza-Cantú, Víctor Hugo Urrutia-Baca, Cynthia Sofía Urbina-Ríos, Myriam Angélica De la Garza-Ramos, Martha Elena García-Martínez, Hilda H H Torre-Martínez
The variability in Helicobacter pylori vacA and cagA genes has been related to the progression of the gastrointestinal disease; also the presence of H. pylori in the oral cavity has been associated with periodontal disease in adults, but, in children without dyspeptic symptoms, little is known about this. We evaluated the prevalence of H. pylori and the presence of vacA/cagA genotypes in the oral cavity of Mexican children without dyspeptic symptoms. The gingival status was measured, and dental plaque samples (n = 100) were taken...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29225907/changes-in-the-gut-microbiota-composition-and-the-plasma-ghrelin-level-in-patients-with-helicobacter-pylori-infected-patients-with-eradication-therapy
#11
Hidetaka Yanagi, Ayumi Tsuda, Masashi Matsushima, Shunsuke Takahashi, Genki Ozawa, Yasuhiro Koga, Atsushi Takagi
Objective: To investigate the influence of antimicrobials on both the gut microbiota structure and the plasma ghrelin level using Helicobacter pylori-infected patients who underwent eradication therapy. Design: Twenty H. pylori-infected patients (mean age 68.3 years old) who underwent eradication therapy participated in the study. For the therapy, patients had 1 week of triple therapy consisting of amoxicillin, clarithromycin and proton-pump inhibitors. Stool and blood samples were obtained before (S1), immediately after (S2) and/or 3 months after (S3) the therapies...
2017: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/29225268/two-cases-of-lanthanum-deposition-in-the-stomach-in-the-absence-of-helicobacter-pylori-infection
#12
Masaya Iwamuro, Haruo Urata, Takehiro Tanaka, Seiji Kawano, Yoshiro Kawahara, Katsuhiko Kimoto, Hiroyuki Okada
In this case report, we describe two patients who showed a diffusely whitish mucosa in the posterior wall and the lesser curvature of the gastric body. The patients were serologically- and histopathologically-negative for Helicobacter pylori. Random biopsy specimens from the stomach revealed no regenerative changes, intestinal metaplasia, and/or foveolar hyperplasia in either of the patients. Although lanthanum deposition in the gastric mucosa has been reported to occur in close association with H. pylori-associated gastritis, our patients tested negative for H...
December 8, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29223485/preventive-effect-of-anti-vaca-egg-yolk-immunoglobulin-igy-on-helicobacter-pylori-infected-mice
#13
Kyung Sook Hong, Mi-Ran Ki, H M Arif Ullah, Eun-Joo Lee, Yong Deuk Kim, Myung-Jin Chung, Ahmed K Elfadl, Jin-Kyu Park, Kyu-Shik Jeong
BACKGROUND: Helicobacter pylori, a gram-negative bacterium, is the causative agent of gastric disorders and gastric cancer in the human stomach. Vacuolating cytotoxin A (VacA) is among the multi-effect protein toxins released by H. pylori that enables its persistence in the human stomach. METHODS: To evaluate the effect of anti-VacA egg yolk immunoglobulin (anti-VacA IgY) on H. pylori infection, a highly specific anti-VacA IgY was produced from egg yolks of hens immunized with a mixture of two purified recombinant VacAs...
December 6, 2017: Vaccine
https://www.readbyqxmd.com/read/29222050/effects-of-the-rna-binding-protein-ksrp-on-innate-immune-response-against-helicobacter-pylori-infection-in-mice
#14
Ningzhe Li, Mei Cao, Sijun Yi, Juan Cheng, Lei Wang, Yuwei Tao, Daoyan Wu, Jingshan Peng, Mao Zhang, Panpan Qi, Jian Zhao
Helicobacter pylori (H. pylori) contributes to various gastric diseases such as chronic gastritis, gastric ulcer, and gastric carcinoma. Host innate immune response against the pathogen plays a significant role in elimination of pathogen infection. Importantly, pathogen elimination is closely related to numerous inflammatory-related genes that participate in complex biological response of cells to harmful stimuli. Here we studied effects of the KH-type splicing regulatory protein (KSRP), a RNA-binding protein, on innate immune response against H...
December 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29221517/urban-rural-disparity-in-helicobacter-pylori-infection-related-upper-gastrointestinal-cancer-in-china-and-the-decreasing-trend-in-parallel-with-socioeconomic-development-and-urbanization-in-an-endemic-area
#15
Xiaoduo Wen, Denggui Wen, Yi Yang, Yuetong Chen, Guiying Wang, Baoen Shan
BACKGROUND: Globally China has the largest urban-rural disparity in socioeconomic development, and the urban-rural difference in upper gastrointestinal cancer (UGIC) is similar to the difference between developed and developing countries. OBJECTIVES: To describe urban-rural disparity in UGIC and to emphasize prevention by socioeconomic development and urbanization in China. METHODS: Age-standardized incidence rates (ASRs) of cancers in 2012 were compared between urban Shijiazhuang city and rural Shexian County, and trends from 2000-2015 in Shexian County were analyzed...
May 2017: Annals of Global Health
https://www.readbyqxmd.com/read/29221216/probiotics-in-14-day-triple-therapy-for-asian-pediatric-patients-with-helicobacter-pylori-infection-a-network-meta-analysis
#16
Juanjuan Wen, Pailan Peng, Pengfei Chen, Lirong Zeng, Qinghua Pan, Wenbin Wei, Jianhua He
Although 14-day triple therapy has been widely administrated for eradicating Helicobacter pylori (H. pylori) in Asia, its antibiotic-associated side effects restrict the effectivity of eradication therapy in pediatric patients. Therefore, a network meta-analysis (NMA) was conducted to compare the efficacy and safety of probiotics supplemented in 14-day triple therapy in Asian pediatric patients. Materials and Methods: Randomized controlled trials (RCTs) were retrieved comprehensively in electronic databases (such as PubMed, Cochrane library, Embase, CNKI, Wan fang database, VIP database and CBM) until April 2017...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221129/long-non-coding-rna-polymorphisms-in-6p21-1-are-associated-with-atrophic-gastritis-risk-and-gastric-cancer-prognosis
#17
Zhi Lv, Liping Sun, Qian Xu, Yuehua Gong, Jingjing Jing, Chengzhong Xing, Yuan Yuan
It has been suggested that the genetic variation in human chromosome 6p21.1 has potential importance for the susceptibility to gastric cancer (GC). The study aims to explore the relationship between the long non-coding RNA (lncRNA) polymorphisms in 6p21.1 and the risk of GC as well as atrophic gastritis (AG). Genotyping for eight single nucleotide polymorphisms (SNPs) was conducted using Sequenom MassARRAY platform in a total of 2507 northern Chinese subjects, including 749 GC cases, 878 AG cases and 880 controls...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29219812/helicobacter-pylori-resistance-in-the-netherlands-a-growing-problem
#18
R Ruiter, H F Wunderink, R A Veenendaal, L G Visser, M G J de Boer
Helicobacter pylori infection is clinically associated with dyspepsia, gastric and duodenal ulcers, and gastric cancer. Increasing antimicrobial resistance in H. pylori is a worldwide problem and failure of eradication with standard triple therapy (high-dose proton pump inhibition, amoxicillin and clarithromycin) is directly related to the presence of a resistant strain. Other treatment combinations have been investigated, but with inconsistent results. Based on a review of the recent literature in conjunction with an analysis of the regional resistance data, we address the increasing complexity of H...
November 2017: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/29218793/anti-proliferation-effect-of-blue-light-emitting-diodes-against-antibiotic-resistant-helicobacter-pylori
#19
Jianwei Ma, Takahiro Hiratsuka, Tsuyoshi Etoh, Junko Akada, Hajime Fujishima, Norio Shiraishi, Yoshio Yamaoka, Masafumi Inomata
BACKGROUND AND AIM: Infection by Helicobacter pylori is implicated in a wide range of upper gastrointestinal diseases. Owing to the rapid emergence of antibiotic-resistant strains of H. pylori, the development of novel treatment modalities for antibiotic-resistant H. pylori infection is a key priority. Blue light-emitting diodes (LED) may represent a unique option owing to their antimicrobial effect. In this study, we aimed to evaluate the anti-proliferative effect of blue LED against antibiotic-resistant H...
December 7, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29217946/association-of-helicobacter-pylori-with-presence-of-myocardial-infarction-in-iran-a-systematic-review-and-meta-analysis
#20
REVIEW
Yousef Rahmani, Sareh Mohammadi, Mehran Babanejad, Alireza Rai, Bahar Zalei, Afshar Shahmohammadi
Background: Over the past decade, cardiovascular diseases have been recognized as the leading cause of mortality worldwide. Myocardial infarction (MI) is one of the most prevalent types of cardiovascular diseases that is caused by the closure of coronary arteries and ischemic heart muscle. Numerous studies have analyzed the role of H. pylori as a possible risk factor for coronary artery diseases, in most of which the role of infection in coronary artery disease is not statistically significant...
July 2017: Ethiopian Journal of Health Sciences
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