keyword
MENU ▼
Read by QxMD icon Read
search

Enterobacteria

keyword
https://www.readbyqxmd.com/read/28538846/-clinical-and-microbiological-study-of-catheter-associated-urinary-tract-infections-in-internal-medicine-services-of-a-venezuelan-university-hospital
#1
Pedro Quijada-Martínez, Ana Flores-Carrero, Indira Labrador, María Araque
Objectives: To determine the clinical and microbiological characteristics of catheter-associated urinary tract infections (CA-UTI) in patients admitted to the Internal Medicine services of the Hospital Universitario de Los Andes (HULA), Mérida, Venezuela and to establish the clonal distribution of multi-resistant Enterobacteriaceae that produce this infection. Materials and Methods: Seventy-three adult patients with bladder catheterization were studied between January and July 2015...
January 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28529729/characterization-of-the-novel-in1059-harbouring-vim-gene-cassette
#2
Dongguo Wang, Jinhong Yang, Meiyu Fang, Wei He, Ying Zhang, Caixia Liu, Dongsheng Zhou
BACKGROUND: VIM-type enzyme encodes the most widely acquired metallo-β-lactamases in Gram- negative bacteria. To obtain current epidemiological data for integrons from enterobacteriae in hospital, the study characterizes the genetic structure in In1059 by comparison with In846 integrons harbouring VIM gene and other class 1 integrons including In37, In62, In843 and In1021 with the aim of identifying the putative mechanisms involved integron mobilization and infer evolution of relevant integrons...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28500714/sensory-rhodopsin-i-and-sensory-rhodopsin-ii-form-trimers-of-dimers-in-complex-with-their-cognate-transducers
#3
Philipp Orekhov, Arne Bothe, Heinz-Jürgen Steinhoff, Konstantin V Shaitan, Stefan Raunser, Dimitrios Fotiadis, Ramona Schlesinger, Johann P Klare, Martin Engelhard
Archaeal photoreceptors consist of sensory rhodopsins in complex with their cognate transducers. After light excitation, a two-component signaling chain is activated, which is homologous to the chemotactic signaling cascades in enterobacteria. The latter system has been studied in detail. From structural and functional studies, a picture emerges which includes stable signaling complexes, which assemble to receptor arrays displaying hexagonal structural elements. At this higher order structural level, signal amplification and sensory adaptation occur...
May 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28476242/evaluation-of-the-carbapenem-inactivation-method-cim-for-detecting-carbapenemase-activity-in-enterobacteria
#4
A Aguirre-Quiñonero, M E Cano, D Gamal, J Calvo, L Martínez-Martínez
OBJECTIVES: The objective of this study was to evaluate the accuracy of the CIM test in the detection of carbapenemase activity in 124 strains of Enterobacteriaceae. METHODS: A panel of 124 previously characterized Enterobacteriaceae was tested: 77 strains producing the following carbapenemase families: KPC (n = 14), GES (n = 22), NDM (n = 19), VIM (n = 4), IMP (n = 4) and OXA-48 (n = 14) and 47 non-carbapenemase producers. For the CIM method, an active susceptibility meropenem disc was exposed to a bacterial suspension of a test strain; when a carbapenemase is produced, the antibiotic is inactivated allowing uninhibited growth of an indicator strain after overnight incubation...
March 16, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28469381/free-living-enterobacterium-pragia-fontium-24613-complete-genome-sequence-and-metabolic-profiling
#5
Kateřina Snopková, Karel Sedlář, Juraj Bosák, Eva Chaloupková, Ivo Sedláček, Ivo Provazník, David Šmajs
Pragia fontium is one of the few species that belongs to the group of atypical hydrogen sulfide-producing enterobacteria. Unlike other members of this closely related group, P. fontium is not associated with any known host and has been reported as a free-living bacterium. Whole genome sequencing and metabolic fingerprinting confirmed the phylogenetic position of P. fontium inside the group of atypical H2S producers. Genomic data have revealed that P. fontium 24613 has limited pathogenic potential, although there are signs of genome decay...
2017: Evolutionary Bioinformatics Online
https://www.readbyqxmd.com/read/28463218/-aerobic-etiology-of-acute-appendicitis-in-adults-multicenter-study-of-abdominal-sepsis-in-argentina
#6
Pablo G Scapellato, Pedro Pessacq, Alejandra Corso, Fernando Pasteran, Melina Rapoport, Walter Vasen, Corina Nemirovsky, Aníbal Calmaggi
Antibiotic treatment for acute appendicitis is empirically chosen, based on epidemiological information. Resistance rates are different between regions and there are limited data on the situation in Argentina. As a part of a multicenter, observational study of abdominal infections, we performed the analysis of adult patients diagnosed with appendicitis, enrolled in 16 centers of 5 provinces, between Jan/01/2014 and Jun/30/2015. The aim was to analyze the prevalent aerobic pathogens, their resistance rates and the antimicrobial prescription pattern...
2017: Medicina
https://www.readbyqxmd.com/read/28432591/prior-beliefs-influence-symmetrical-or-asymmetrical-generalizations-in-human-causal-learning
#7
Ryoji Nishiyama, Takatoshi Nagaishi, Takahisa Masaki
The generalization decrement between element A and compound AX has shown both symmetrical (Thorwart & Lachnit, 2009) and asymmetrical (Glautier, 2004) patterns in human contingency learning. In a series of experiments we examined the hypothesis that prior beliefs about the relationship between a distinctive element X and an outcome are important for determining the different generalization patterns. Participants learned which given enterobacteria caused a negative or a positive effect on gastrointestinal conditions...
April 21, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28423881/effects-of-calcium-propionate-on-the-fermentation-quality-and-aerobic-stability-of-alfalfa-silage
#8
Zhi Hao Dong, Xian Jun Yuan, Ai You Wen, Seare T Desta, Tao Shao
Objective: To assess the potency of calcium propionate used as silage additive, an experiment was carried out to evaluate the effect of calcium propionate on the nitrogen transformation, fermentation quality and aerobic stability of alfalfa silages. Methods: Alfalfa was ensiled with four levels of calcium propionate (CAP; 5, 10, 15 and 20 g kg-1 of fresh weigh) in laboratory silos for 30 days. After opening, the silages were analyzed for the chemical and microbiological characteristics, and subjected to an aerobic stability test...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28419869/allodemic-distribution-of-plasmids-co-harbouring-blactx-m-15-aac-6-ib-cr-qnrb-in-klebsiella-pneumoniae-is-the-main-source-of-extended-spectrum-%C3%AE-lactamases-in-uruguay-s-paediatric-hospital
#9
V Garcia-Fulgueiras, L Araujo, I Bado, N F Cordeiro, M I Mota, G Laguna, G Algorta, R Vignoli
OBJECTIVES: This study aimed to describe the characteristics of clinical isolates of extended-spectrum β-lactamase (ESBL)-producing enterobacteria (EPE) in Uruguay's paediatric hospital. METHODS: ESBLs, qnr alleles and aac(6')-Ib-cr were sought and characterised in EPE isolated between March 2010 and March 2012. Transfer of resistance determinants was assessed by conjugation. Incompatibility (Inc) groups, plasmid toxin-antitoxin systems (TAS) and plasmid size were determined in transconjugants...
April 15, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28414794/intestinal-extra-intestinal-and-systemic-sequelae-of-toxoplasma-gondii-induced-acute-ileitis-in-mice-harboring-a-human-gut-microbiota
#10
Eliane von Klitzing, Ira Ekmekciu, Anja A Kühl, Stefan Bereswill, Markus M Heimesaat
BACKGROUND: Within seven days following peroral high dose infection with Toxoplasma gondii susceptible conventionally colonized mice develop acute ileitis due to an underlying T helper cell (Th) -1 type immunopathology. We here addressed whether mice harboring a human intestinal microbiota developed intestinal, extra-intestinal and systemic sequelae upon ileitis induction. METHODOLOGY/PRINCIPAL FINDINGS: Secondary abiotic mice were generated by broad-spectrum antibiotic treatment and associated with a complex human intestinal microbiota following peroral fecal microbiota transplantation...
2017: PloS One
https://www.readbyqxmd.com/read/28400020/bacterial-communities-of-fresh-goat-meat-packaged-in-modified-atmosphere
#11
Elia Carrizosa, María José Benito, Santiago Ruiz-Moyano, Alejandro Hernández, Maria Del Carmen Villalobos, Alberto Martín, María de Guía Córdoba
The objective of this work was to study the growth and development of fortuitous flora and food pathogens in fresh goat meat packaged under modified atmospheres containing two different concentrations of CO2. Meat samples were stored at 10 °C under two different modified-atmosphere packing (MAP) conditions: treatment A had 45% CO2 + 20% O2 + 35% N2 and treatment B had 20% CO2 + 55% O2 + 25% N2. During 14 days of storage, counts of each bacterial group and dominant species identification by 16S rRNA gene sequencing were performed to determine the microbial diversity present...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28386472/comprehensive-survey-of-intestinal-microbiota-changes-in-offspring-of-human-microbiota-associated-mice
#12
Eliane von Klitzing, Fulya Öz, Ira Ekmekciu, Ulrike Escher, Stefan Bereswill, Markus M Heimesaat
Secondary abiotic mice generated by broad-spectrum antibiotic treatment provide a valuable tool for association studies with microbiota derived from different vertebrate hosts. We here generated human microbiota-associated (hma) mice by human fecal microbiota transplantation of secondary abiotic mice and performed a comprehensive survey of the intestinal microbiota dynamics in offspring of hma mice over 18 weeks following weaning as compared to their mothers applying both cultural and molecular methods. Mice were maintained under standard hygienic conditions with open cages, handled under aseptic conditions, and fed autoclaved chow and water...
March 2017: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/28385839/draft-genome-sequences-of-pectobacterium-carotovorum-subsp-actinidiae-icmp-19971-and-icmp-19972-two-strains-isolated-from-actinidia-chinensis-with-symptoms-of-summer-canker-in-south-korea
#13
Sandra B Visnovsky, Preetinanda Panda, Robert Taylor, Andrew R Pitman
Pectobacterium carotovorum subsp. actinidiae is the causal agent of summer canker in kiwifruit plants in South Korea. We report here the draft genome sequences of two P. carotovorum subsp. actinidiae strains, ICMP 19971 and ICMP 19972, which were originally isolated from Actinidia chinensis with symptoms of summer canker. These genome sequences will aid in the identification of genetic traits associated with their unusual capacity to cause canker and help understanding of the threat these exotic enterobacteria pose to the New Zealand kiwifruit industry...
April 6, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28385464/microbiology-of-surgical-site-infections-in-patients-with-cancer-a-7-year-review
#14
Juan Carlos Hernaiz-Leonardo, Maria Fernanda Golzarri, Patricia Cornejo-Juárez, Patricia Volkow, Consuelo Velázquez, Mauricio Ostrosky-Frid, Diana Vilar-Compte
BACKGROUND: Health care-associated infections (HAIs) have arisen as major sources of multidrug-resistant bacteria. Surgical site infections (SSIs) are the most frequent HAIs in many countries, with high antimicrobial-resistant prevalence. METHODS: A 7-year retrospective review (2008-2014) of microbiologic data within a prospective surveillance program on patients with SSI at a cancer hospital in Mexico. RESULTS: There were 23,421 surgeries performed during the study period...
April 3, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28384626/complete-genome-sequence-of-proteus-mirabilis-phage-ppm_01-isolated-from-raw-sewage
#15
Ira Aryani Wirjon, Nyok-Sean Lau, Yahya Mat Arip
OBJECTIVES: Phage pPM_01 was previously isolated from a raw sewage treatment facility located in Batu Maung, Penang, Malaysia, and it was highly lytic against Proteus mirabilis, which causes urinary tract infections in humans. In this paper, we characterize the biology and complete genome sequence of the phage. METHODS AND RESULTS: Transmission electron microscopy revealed phage pPM_01 to be a siphovirus (the first reported virus to infect P. mirabilis), with its complete genome sequence successfully determined...
April 7, 2017: Intervirology
https://www.readbyqxmd.com/read/28374966/apoptosis-dysbiosis-and-expression-of-inflammatory-cytokines-are-sequential-events-in-the-development-of-5-fluorouracil-induced-intestinal-mucositis-in-mice
#16
Nahla Hamouda, Tatsushi Sano, Yosuke Oikawa, Toru Ozaki, Masaki Shimakawa, Kenjiro Matsumoto, Kikuko Amagase, Kazuhide Higuchi, Shinichi Kato
The chemotherapeutic agent 5-fluorouracil (5-FU) causes intestinal mucositis with severe diarrhoea but the pathogenesis is not fully understood. In the present study, we investigated the pathogenic effects of 5-FU in mice, focusing on apoptosis, enterobacteria and inflammatory cytokines. Repeated administration of 5-FU caused severe intestinal mucositis on day 6, accompanied by diarrhoea and body weight loss. TNF-α expression increased one day after exposure to the drug, and spiked a second time on day 4, at which point myeloperoxidase activity and IL-1β expression also increased...
April 4, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28373273/appropriate-regulation-of-the-%C3%AF-e-dependent-envelope-stress-response-is-necessary-to-maintain-cell-envelope-integrity-and-stationary-phase-survival-in-escherichia-coli
#17
Hervé Nicoloff, Saumya Gopalkrishnan, Sarah E Ades
The alternative sigma factor σ(E) is a key component of the Escherichia coli response to cell envelope stress and is required for viability even in the absence of stress. σ(E) activity increases during entry into stationary phase suggesting an important role for σ(E) when nutrients are limiting. Elevated σ(E) activity has been proposed to activate a pathway leading to lysis of non-culturable cells that accumulate during early stationary phase. To better understand σ(E)-directed cell lysis and the role of σ(E) in stationary phase, we investigated the effects of elevated σ(E) activity in cultures grown for ten days...
April 3, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28371809/interventions-to-reduce-the-bacterial-load-in-recycled-broiler-litter
#18
C S L Vaz, D Voss-Rech, V S de Avila, A Coldebella, V S Silva
Two experiments were undertaken to evaluate the bacterial load in recycled litter between broiler flocks following addition of quicklime (T1), windrowing (T2), shallow fermentation (T3), and control (no intervention, T4). The first experiment was developed in field conditions in which the broiler houses were accompanied by 6 consecutive flocks and the effect of the treatments was assessed on enterobacteria and aerobic mesophiles. The second experiment was conducted in an experimental broiler house with recycled litter for assessment of Salmonella Enteritidis phage type 4 (SE PT4)...
March 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28351914/the-n-acetylmuramic-acid-6-phosphate-phosphatase-mupp-completes-the-pseudomonas-peptidoglycan-recycling-pathway-leading-to-intrinsic-fosfomycin-resistance
#19
Marina Borisova, Jonathan Gisin, Christoph Mayer
Bacterial cells are encased in and stabilized by a netlike peptidoglycan (PGN) cell wall that undergoes turnover during bacterial growth. PGN turnover fragments are frequently salvaged by the cells via a pathway referred to as PGN recycling. Two different routes for the recycling of the cell wall sugar N-acetylmuramic acid (MurNAc) have been recognized in bacteria. In Escherichia coli and related enterobacteria, as well as in most Gram-positive bacteria, MurNAc is recovered via a catabolic route requiring a MurNAc 6-phosphate etherase (MurQ in E...
March 28, 2017: MBio
https://www.readbyqxmd.com/read/28339522/influence-of-postbiotic-rg14-and-inulin-combination-on-cecal-microbiota-organic-acid-concentration-and-cytokine-expression-in-broiler-chickens
#20
K Y Kareem, T C Loh, H L Foo, S A Asmara, H Akit
This study examined the effects of different combinations of inulin and postbiotics RG14 on growth performance, cecal microbiota, volatile fatty acids (VFA), and ileal cytokine expression in broiler chickens. Two-hundred-and sixteen, one-day-old chicks were allocated into 6 treatment groups, namely, a basal diet (negative control, NC), basal diet + neomycin and oxytetracycline (positive control, PC), T1 = basal diet + 0.15% postbiotic RG14 + 1.0% inulin, T2 = basal diet + 0.3% postbiotic RG14 + 1.0% inulin, T3 = basal diet + 0...
October 6, 2016: Poultry Science
keyword
keyword
81737
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"