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https://www.readbyqxmd.com/read/27908539/design-synthesis-molecular-docking-anti-proteus-mirabilis-and-urease-inhibition-of-new-fluoroquinolone-carboxylic-acid-derivatives
#1
Mohammed A A Abdullah, Gamal El-Din A A Abuo-Rahma, El-Shimaa M N Abdelhafez, Heba A Hassan, Rehab M Abd El-Baky
New hydroxamic acid, hydrazide and amide derivatives of ciprofloxacin in addition to their analogues of levofloxacin were prepared and identified by different spectroscopic techniques. Some of the prepared compounds revealed good activity against the urease splitting bacteria, Proteus mirabilis. The urease inhibitory activity was investigated using indophenol method. Most of the tested compounds showed better activity than the reference acetohydroxamic acid (AHA). The ciprofloxacin hydrazide derivative 3a and levofloxacin hydroxamic acid 7 experienced the highest activity (IC50=1...
November 9, 2016: Bioorganic Chemistry
https://www.readbyqxmd.com/read/27893682/peritoneal-dialysis-related-peritonitis-due-to-halomonas-hamiltonii-a-first-case-report
#2
Se Hwan Yeo, Jae Hoon Kwak, Yeo Un Kim, Jin Suk Lee, Hyo Jin Kim, Kyoung Hwa Park, Jung Sook Lee, Gyoung Yim Ha, Jeong Ho Lee, Jun Yeop Lee, Kyung Don Yoo
INTRODUCTION: Halomonas hamiltonii is a Gram-negative, halophilic, motile, and nonspore-forming rod bacterium. Although most Halomonas sp. are commonly found in saline environments, it has rarely been implicated as a cause of human infection. Herein, the authors present a case report of continuous ambulatory peritoneal dialysis (CAPD)-related peritonitis attributed to H hamiltonii. CASE PRESENTATION: An 82-year-old male patient who had been receiving CAPD therapy presented to an emergency department with complaints of abdominal pain and cloudy dialysate that had persisted for 2 days...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27892443/medication-adherence-pattern-and-factors-affecting-adherence-in-helicobacter-pylori-eradication-therapy
#3
S Shakya Shrestha, M Bhandari, S R Thapa, R Shrestha, R Poudyal, B Purbey, R B Gurung
Background Helicobacter pylori (H. pylori) infection is the most common chronic bacterial infection worldwide affecting approximately half of the world's population. A number of screening tests as well as complex multi-drug therapies are available for the detection and treatment of H. pylori infection. However, the optimum eradication rates of H. pylori infection can only be achieved if adherence to drug therapy is higher. Therefore, it is of utmost importance to determine the factors leading to poor adherence to obtain successful treatment outcomes...
January 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/27879042/high-antibiotic-resistance-of-helicobacter-pylori-and-its-effect-on-tailored-and-empiric-eradication-of-the-organism-in-lower-silesia-poland
#4
Stanisław Ferenc, Jan Gnus, Magdalena Kościelna, Małgorzata Kinda, Andriy Yarka, Luke Stewart, Wojciech Witkiewicz
BACKGROUND: At present, the resistance to antibiotics is considered the most important reason for Helicobacter pylori (HP) eradication failure. The aim of this study was to estimate the prevalence of antimicrobial resistance of HP strains and to evaluate tailored and empiric therapeutic regimens in patients with peptic ulcer disease associated with infection of this microorganism. MATERIALS AND METHODS: Between May 2011 and February 2013, 185 consecutive Polish patients with at least one positive Helicobacter pylori test (urease test, histopathologic examination, and/or culture) underwent eradication therapy...
November 23, 2016: Helicobacter
https://www.readbyqxmd.com/read/27821034/regression-of-gastric-de-novo-diffuse-large-b-cell-lymphoma-following-helicobacter-pylori-eradication-a-case-report
#5
M Saito, M Masutani, K Mabe, K Izumiyama, A Mori, T Irie, M Tanaka, M Morioka, M Tanino
We report a case of primary gastric diffuse large B-cell lymphoma (DLBCL), de novo DLBCL without the features of mucosa-associated lymphoid tissue (MALT) lymphoma, which regressed after Helicobacter pylori (HP) eradication. A 27-year-old Japanese female with epigastralgia was revealed to have ulcerated lesions in the angle and antral regions on gastroscopy. Biopsy specimen was consistent with a diagnosis of DLBCL without MALT lymphoma component, indicating de novo development. Her clinical staging on the Lugano system was Stage I...
July 2016: Acta Gastro-enterologica Belgica
https://www.readbyqxmd.com/read/27820723/characterization-of-the-gastric-microbiota-in-a-pediatric-population-according-to-helicobacter-pylori-status
#6
Laura Llorca, Guillermo Pérez-Pérez, Pedro Urruzuno, Maria Josefa Martinez, Tadasu Iizumi, Zhan Gao, Jiho Sohn, Jennifer Chung, Laura Cox, Aurea Simón-Soro, Alex Mira, Teresa Alarcón
BACKGROUND: H. pylori colonizes the human stomach of approximately 50% of the world's population, and increases the risk of several gastric diseases. The goal of this study is to compare the gastric microbiota in pediatric patients with and without H. pylori colonization. METHODS: We studied 51 children that underwent gastric endoscopy due to dyspeptic symptoms (18 H. pylori-positive and 33 negative). Gastric biopsies were obtained for Rapid Urease Test, culture, histology and DNA extraction...
November 3, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27784639/gas-chromatography-mass-spectrometry-based-urine-metabolome-study-in-children-for-inborn-errors-of-metabolism-an-indian-experience
#7
Mahesh H Hampe, Shrimant N Panaskar, Ashwini A Yadav, Pramod W Ingale
OBJECTIVE: The present study highlights the feasibility of gas chromatography/mass spectrometry (GC/MS)-based analysis for simultaneous detection of >200 marker metabolites in urine found in characteristic pattern in inborn errors of metabolism (IEM) in India. DESIGN AND METHODS: During this retrospective study conducted from July 2013 to January 2016, we collected urine specimens on filter papers from Indian children across the country along with relevant demographic and clinical data...
October 23, 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/27778522/synthesis-of-chiral-pyrazolo-4-3-e-1-2-4-triazine-sulfonamides-with-tyrosinase-and-urease-inhibitory-activity
#8
Mariusz Mojzych, Paweł Tarasiuk, Katarzyna Kotwica-Mojzych, Muhammad Rafiq, Sung-Yum Seo, Michał Nicewicz, Emilia Fornal
A new series of sulfonamide derivatives of pyrazolo[4,3-e][1,2,4]triazine with chiral amino group has been synthesized and characterized. The compounds were tested for their tyrosinase and urease inhibitory activity. Evaluation of prepared derivatives demonstrated that compounds (8b) and (8j) are most potent mushroom tyrosinase inhibitors whereas all of the obtained compounds showed higher urease inhibitory activity than the standard thiourea. The compounds (8a), (8f) and (8i) exhibited excellent enzyme inhibitory activity with IC50 0...
October 25, 2016: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/27769562/concomitant-bismuth-quadruple-and-14-day-triple-therapy-in-the-first-line-treatment-of-helicobacter-pylori-a-multicentre-open-label-randomised-trial
#9
Jyh-Ming Liou, Yu-Jen Fang, Chieh-Chang Chen, Ming-Jong Bair, Chi-Yang Chang, Yi-Chia Lee, Mei-Jyh Chen, Chien-Chuan Chen, Cheng-Hao Tseng, Yao-Chun Hsu, Ji-Yuh Lee, Tsung-Hua Yang, Jiing-Chyuan Luo, Chun-Chao Chang, Chi-Yi Chen, Po-Yueh Chen, Chia-Tung Shun, Wen-Feng Hsu, Wen-Hao Hu, Yen-Nien Chen, Bor-Shyang Sheu, Jaw-Town Lin, Jeng-Yih Wu, Emad M El-Omar, Ming-Shiang Wu
BACKGROUND: Whether concomitant therapy is superior to bismuth quadruple therapy or 14-day triple therapy for the first-line treatment of Helicobacter pylori infection remains poorly understood. We aimed to compare the efficacy and safety of 10-day concomitant therapy, 10-day bismuth quadruple therapy, and 14-day triple therapy in the first-line treatment of H pylori. METHODS: In this multicentre, open-label, randomised trial, we recruited adult patients (aged >20 years) with H pylori infection from nine medical centres in Taiwan...
November 12, 2016: Lancet
https://www.readbyqxmd.com/read/27761418/assessment-of-antibacterial-effect-of-garlic-in-patients-infected-with-helicobacter-pylori-using-urease-breath-test
#10
Mahmoud Zardast, Kokab Namakin, Jamil Esmaelian Kaho, Sarira Sadat Hashemi
OBJECTIVE: Helicobacter pylori (H. pylori) is the most common pathogenic bacteria in the stomach. The aim of the current study was to explore the effect of oral garlic administration on bacterial urease activity inside the stomach and its contribution to the treatment of H. pylori infection. MATERIALS AND METHODS: In this clinical trial, 15 patients were studied quantitatively with Urease Breath Test (UBT). The patients with gastrointestinal symptoms and a positive serum H...
September 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/27759776/prevalence-of-helicobacter-pylori-ten-years-ago-compared-to-the-current-prevalence-in-patients-undergoing-upper-endoscopy
#11
Sandra Frugis, Nicolau Gregori Czeczko, Osvaldo Malafaia, Artur Adolfo Parada, Paula Bechara Poletti, Thiago Festa Secchi, Matheus Degiovani, Alécio Rampanazzo-Neto, Mariza D D Agostino
Background: Helicobacter pylori has been extensively studied since 1982 it is estimated that 50% of the world population is affected. The literature lacks studies that show the change of its prevalence in the same population over time. Aim: To compare the prevalence of H. pylori in 10 years interval in a population that was submitted to upper endoscopy in the same endoscopy service. Method: Observational, retrospective and cross-sectional study comparing the prevalence of H...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27759774/relationship-between-the-presence-of-helicobacter-pylori-with-inflammatory-endoscopic-changes-in-gastroduodenal-mucosa
#12
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
https://www.readbyqxmd.com/read/27759772/relationship-between-esophagitis-grades-and-helicobacter-pylori
#13
Patrícia Fernanda Saboya Ribeiro, Luiz Fernandao Kubrusly, Paulo Afonso Nunes Nassif, Irma Cláudia Saboya Ribeiro, Andressa de Souza Bertoldi, Venessa Caroline Batistão
Background: The Helicobacter pylori infection (HP) is related to the development of gastric lesions and lymphoma; however, it is not known if there is a relation with gastroesophageal reflux disease and reflux esophagitis. Aim: To evaluate HP's relationship with esophagitis in patients undergoing upper endoscopy. Methods: Observational, retrospective and cross-sectional study, being evaluated 9576 patients undergoing outpatient endoscopic examination during the period between January and December 2015...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27755976/synthesis-crystal-structures-dft-studies-molecular-docking-and-urease-inhibition-studies-of-three-ni-ii-complexes-with-a-sexidentate-n2o4-donor-bis-schiff-base-ligand
#14
Hu Wang, Tianxiang Lan, Xia Zhang, Dongmei Zhang, Caifeng Bi, Yuhua Fan
Three Ni(II) complexes with a sexidentate N2O4-donor bis-Schiff base ligand, namely Ni(C36H34N2O8)·2CH3OH (1), Ni(C28H34N2O8S2)·H2O (2) and Ni(C40H36N4O8)·3CH3OH (3) (C36H34N2O8=1,2-bis(2-methoxy-6-formylphenoxy)ethane-l-phenylalanine; C28H34N2O8S2=1,2-bis(2-methoxy-6-formylphenoxy)ethane-l-methionine; C40H36N4O8=1,2-bis(2-methoxy-6-formylphenoxy)ethane-l-tryptophan) were synthesized and structurally characterized. Theoretical studies of the three complexes were carried out by density functional theory (DFT) Becke's three-parameter hybrid (B3LYP) method employing the 6-31G basis set...
October 14, 2016: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/27753097/growth-of-wheat-and-lettuce-and-enzyme-activities-of-soils-under-garlic-stalk-decomposition-for-different-durations
#15
Xu Han, Zhihui Cheng, Huanwen Meng
BACKGROUND: Garlic (Allium sativum L.) stalk is a byproduct of garlic production that is normally thought of as waste but is now considered to be a useful biological resource. It is necessary to utilise this resource efficiently and reasonably to reduce environmental pollution and achieve sustainable agricultural development. RESULTS: The effect of decomposed garlic stalk for different durations was investigated in this study using wheat (Triticum aestivum L.) and lettuce (Lactuca sativa var...
October 17, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27752153/-evaluation-and-establishment-of-mongolian-gerbil-model-of-long-term-infection-of-helicobacter-pylori-with-highly-expressed-thioredoxin-1-gene
#16
H J Zhang, L N Liu, C Zhang, Y Y Shi, S G Ding
OBJECTIVE: To establish a Mongolian gerbils model by long-term infection of Helicobacter pylori (Hp) with highly-expressed thioredoxin-1 (Trx1) gene and to investigate the histopathological findings of gastric mucosa in Mongolian gerbils. METHODS: In this study, 75 healthy male Mongolian gerbils were randomly divided into 3 groups: Hp with highly-expressed Trx1 gene group (n=30), Hp with lowly-expressed Trx1 gene group (n=30), and control group (n=15). The animals underwent gastric perfusion of Hp suspension once a week for 5 weeks...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27747374/natural-18-o-and-13-c-urea-in-gastric-juice-a-new-route-for-non-invasive-detection-of-ulcers
#17
Abhijit Maity, Mithun Pal, Suman Som, Sanchi Maithani, Sujit Chaudhuri, Manik Pradhan
The (13)C-urea breath test ((13)C-UBT), developed a few decades ago, is widely used as a non-invasive diagnostic method to detect only the presence of the gastric pathogen Helicobacter pylori infection; however, the actual disease state, i.e. whether the person harbouring H. pylori has peptic ulcer disease (PUD) or non-ulcerous dyspepsia (NUD), is still poorly understood. Nevertheless, the present (13)C-UBT has numerous limitations, drawbacks and pitfalls owing to the ingestion of (13)C-labelled external urea...
October 17, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27706745/influence-of-cyp2c19-on-helicobacter-pylori-eradication-in-brazilian-patients-with-functional-dyspepsia
#18
D D Nabinger, L E Mazzoleni, G B Sander, F Mazzoleni, M C Osório, M G Klein, T F Rech, L Basso da Silva, G S de Moraes, R A Cristovam, E F Nardelli, C F M Francesconi, D Simon
The aim of this study was to examine the effect of polymorphisms in the cytochrome P450 (CYP) 2C19 gene (CYP2C19) on the Helicobacter pylori eradication rate in Brazilian patients with functional dyspepsia. Adults diagnosed with functional dyspepsia based on the ROME III criteria and infected with H. pylori were recruited to this study. The patients were subjected to gastrointestinal endoscopy and the H. pylori status was defined when both urease test and histopathology results were negative or positive. The patients were treated with proton pump inhibitor-based triple therapy (omeprazole, amoxicillin, and clarithromycin)...
September 16, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27706450/is-the-immunocromatographic-fecal-antigen-test-effective-for-primary-diagnosis-of-helicobacter-pylori-infection-in-dyspeptic-patients
#19
Magali Dalla Nora, Rosmari Hörner, Diego Michelon De Carli, Marta Pires da Rocha, Amanda Faria de Araujo, Renato Borges Fagundes
Background: The diagnosis of H. pylori infection can be performed by non-invasive and invasive methods.The identification through a fecal antigen test is a non-invasive, simple, and relatively inexpensive test. Objective: To determine the diagnostic performance of fecal antigen test in the identification of H. pylori infection. Methods: H. pylori antigens were identified in the stools of dyspeptic patients undergoing upper gastrointestinal endoscopy...
October 2016: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/27703556/serum-il-10-mmp-7-mmp-9-levels-in-helicobacter-pylori-infection-and-correlation-with-degree-of-gastritis
#20
Gontar Siregar, Sahat Halim, Ricky Sitepu
AIM: Helicobacter pylori causes gastric mucosal inflammation and immune reaction. However, the increase of IL-10, MMP-7, and MMP-7 levels in the serum is still controversial. The objective of this study was to investigate the serum levels of IL-10, MMP-7 & MMP-9 in gastritis patients with H. pylori infection. MATERIALS AND METHODS: A cross-sectional study was done on seventy gastritis patients that consecutive admitted to endoscopy units. The diagnosis of gastritis was made based on histopathology and diagnosis of H...
September 15, 2016: Open Access Macedonian Journal of Medical Sciences
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