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https://www.readbyqxmd.com/read/27911010/screening-of-mercury-resistant-and-indole-3-acetic-acid-producing-bacterial-consortium-for-growth-promotion-of-cicer-arietinum-l
#1
Aatif Amin, Zakia Latif
Mercury resistant (Hg(R) ) bacteria were screened from industrial effluents and effluents-polluted rhizosphere soils near to districts Kasur and Sheikhupura, Pakistan. Out of 60 isolates, three bacterial strains, Bacillus sp. AZ-1, Bacillus cereus AZ-2, and Enterobacter cloacae AZ-3 showed Hg-resistance as 20 μg ml(-1) of HgCl2 and indole-3-acetic acid (IAA) production as 8-38 μg ml(-1) . Biochemical and molecular characterization of selected bacteria was confirmed by 16S ribotyping. Mercury resistant genes merA, merB, and merE of mer operon in Bacillus spp...
December 2, 2016: Journal of Basic Microbiology
https://www.readbyqxmd.com/read/27902429/plasmid-mediated-quinolone-resistance-determinants-among-gram-negative-bacteraemia-isolates-a-hidden-threat
#2
Athanasios Margaritis, Irene Galani, Marianthi Chatzikonstantinou, George Petrikkos, Maria Souli
The aim of the study was to investigate the prevalence of PMQR genes in an unselected collection of bloodstream isolates recovered over an 18-month period in a laboratory affiliated to a University Hospital in Athens, Greece and to assess their impact on the in vitro activity of ciprofloxacin and levofloxacin. Eight PMQR genes were screened by PCR and sequencing. All PMQR-positive isolates were submitted to isoelectric focusing for β-lactamase detection, conjugation or transformation, time-kill assays, MPC and inoculum effect evaluation...
November 28, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27902398/clonal-spread-and-accumulation-of-beta-lactams-resistance-determinants-in-enterobacter-aerogenes-and-enterobacter-cloacae-complex-isolates-from-infection-and-colonization-in-patients-at-a-public-hospital-in-recife-pernambuco-brazil
#3
Adriane Borges Cabral, Maria Amélia Vieira Maciel, Josineide Ferreira Barros, Marcelo Maranhão Antunes, Célia Maria Machado Barbosa de Castro, Ana Catarina Souza Lopes
Enterobacter aerogenes and Enterobacter cloacae complex are the species of this genus most involved in healthcare-associated infections (HAIs), that are ESBL and carbapenemase producers. This study has characterized phenotypically and genotypically 51 isolates of E. aerogenes and E. cloacae complex as originated from infection or colonization in patients admitted to public hospital in Recife, Pernambuco, Brazil, by antimicrobial susceptibility profile, analysis of β-lactamase genes (blaTEM, blaSHV, blaCTX-M, blaKPC, blaVIM, blaIMP and blaSPM), PCR and DNA sequencing, plasmid profile and ERIC-PCR...
November 28, 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27902305/flavobacterium-cloacae-sp-nov-isolated-from-waste-water
#4
Hongming Liu, Peng Lu, Guoping Zhu
A Gram-stain-negative, non-spore-forming, rod-shaped, non-motile bacterium, named wh15T, was isolated from the waste water of a municipal wastewater treatment plant in Wuhu, China. The taxonomic status of the strain was characterized using a polyphasic taxonomic approach. Growth occurred at 15-45 °C (optimum, 25-40 °C), at pH 5.0-8.0 (optimum, pH 7.0) and with 0-4% NaCl (optimum, 1-2%). Phylogenetic analyses based on 16S rRNA gene sequence revealed that strain wh15T was a member of genus Flavobacterium and shared the highest similarity with F...
November 21, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27897435/-evaluation-of-an-immunochromatographic-test-for-the-detection-of-oxa-48-carbapenemase
#5
C Mediavilla-Gradolph, R Sáinz-Rodriguez, M Valverde-Troya, I de Toro-Peinado, M P Bermudez-Ruíz, B Palop-Borrás
OBJECTIVE: Detection and differentiation of various types of carbapenemases is crucial to their control and dissemination. OXA-48 is the most common carbapenemase in Spain and in our environment. The aim of this study is the evaluation of a new immunochromatographic test OXA-48 Card letitest (Coris, BioConcept Belgium) to detect this carbapenemase from solid media. METHODS: During the last year 151 strains of carbapenemase producing bacteria have been isolated, of which 136 were OXA-48 (126 Klebsiella pneumoniae, 1 Klebsiella oxytoca, 5 Escherichia coli, 4 Enterobacter cloacae), and 15 producing other carbapenemases ...
November 25, 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/27894765/outcome-in-adults-with-anorectal-malformations-in-relation-to-modern-classification-which-patients-do-we-need-to-follow-beyond-childhood
#6
Johan Danielson, Urban Karlbom, Wilhelm Graf, Tomas Wester
BACKGROUND/PURPOSE: Knowledge about the functional outcome in adults with anorectal malformations is essential to organize structured transition to adult care for this patient group. The aim of this study was to investigate the functional outcome and quality of life in adults with anorectal malformations characterized according to the Krickenbeck classification. METHODS: Of 256 patients diagnosed with anorectal malformations at our institution in 1961-1993, 203 patients could be traced and were invited to participate in the study...
November 15, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27894288/bactericidal-and-antioxidant-properties-of-essential-oils-from-the-fruits-dennettia-tripetala-g-baker
#7
Sunday O Okoh, Benson C Iweriegbor, Omobola O Okoh, Uchechukwu U Nwodo, Anthony I Okoh
BACKGROUND: The antibacterial and antioxidant properties of the essential oils (EOs) of unripe and ripe fruits of Dennettia tripetala and their potential for the management of infectious and oxidative-stress diseases were investigated in-vitro in this study. METHOD: Essential oil obtained from the fruit in Clevenger modified apparatus, was characterized by high resolution GC-MS, while antioxidant and antibacterial properties were tested by spectrophotometric and agar diffusion methods respectively...
November 28, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27889603/two-symbiotic-bacteria-of-the-entomopathogenic-nematode-heterorhabditis-spp-against-galleria-mellonella
#8
Chunli Liao, Along Gao, Bingbing Li, Mengjun Wang, Linna Shan
The entomopathogenic nematode Heterorhabditis spp. is considered a promising agent in the biocontrol of injurious insects of agriculture. However, different symbiotic bacteria associated with the nematode usually have different specificity and virulence toward their own host. In this study, two symbiotic bacteria, LY2W and NK, were isolated from the intestinal canals of two entomopathogenic nematode Heterorhabditis megidis 90 (PDSj1 and PDSj2) from Galleria mellonela, separately. To determine their species classification, we carried out some investigations on morphology, culture, biochemistry, especially 16S rDNA sequence analyses...
November 23, 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/27879005/transient-distention-of-right-posterior-located-sigma-a-new-sonographic-sign-for-the-prenatal-diagnosis-of-anal-atresia
#9
Moshe Bronshtein, Ayala Gover, Ron Beloosesky, Zeev Blumenfeld
We describe a new sonographic sign for the detection of anal atresia in the early midtrimester on transvaginal sonography. In six cases of fetal anal atresia, the finding of a transient, distended, and right-sided sigmoid colon was observed at 13-16 weeks' gestation. Three cases have undergone pregnancy termination due to multiple anomalies. In the other three, the colonic distension resolved by 19 weeks' gestation. In two of these, the finding was isolated, and no other anomalies were detected. In all six cases, anal atresia or cloaca was confirmed on postabortal autopsy or after delivery...
November 23, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27877172/regulated-inflammation-and-lipid-metabolism-in-colon-mrna-expressions-of-obese-germfree-mice-responding-to-enterobacter-cloacae-b29-combined-with-the-high-fat-diet
#10
Huiying Yan, Na Fei, Guojun Wu, Chenhong Zhang, Liping Zhao, Menghui Zhang
Increased evidences have demonstrated that gut microbiota targeted diet intervention can alleviate obesity and related metabolic disorders. The underlying mechanism of interactions among diet, microbiota, and host still remains unclear. Enterobacter cloacae B29, an endotoxin-producing strain dominated in the gut of a morbidly obese volunteer (weight 174.8 kg, BMI 58.8 kg m(-2)) was isolated and transplanted to germfree mice (inoculated 10(10) cells of B29 per day for 1 week). Using deep mRNA sequencing technology, we compared different gene expression profiles in the colon samples of the germfree mice treated with/without B29 and/or high fat diet (HFD) for 16 weeks and identified 279 differential expressed genes in total, including up-regulated genes Apoa4 (fold change, 2...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27876914/ultrastructural-studies-on-setaria-digitata-by-scaning-electron-microscopy
#11
Lingala Raju Kumar, Manchukonda Udaya Kumar
Ultrastructural details of adult male and female worms of Setaria species collected from the peritoneal cavities of bovines slaughtered in and around Hyderabad, Telangana, India were studied using scanning electron microscopy. The worms exhibited peribuccal crown with round mouth opening encircled by a pair of lateral appendages and slightly notched dorso and ventro projections at the anterior end where as bosses and fine cuticular striations were seen all over the body. Posterior end of female worm ended in a round knob with a pair of lateral appendages whereas three pairs of precloacal, a pair of adcloacal, three pairs of postcloacal papillae, a central papillae just in front of the cloaca, a single tongue shaped spicule emerging from the cloaca, and a phasmid in front of a pair of lateral appendages were seen at the posterior end of male worm...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27866753/-molecular-epidemiology-of-carbapenemase-producing-enterobacteriaceae-infection-colonisation-in-a-hospital-in-madrid
#12
Patricia Brañas, Marta Gil, Jennifer Villa, María Ángeles Orellana, Fernando Chaves
INTRODUCTION: A description is presented on the molecular epidemiology of carbapenemase-producing enterobacteriaceae infection in a tertiary hospital. MATERIAL AND METHODS: A study was made on all the carbapenemase-producing enterobacteriaceae isolations obtained between February 2015 and March 2016 in the Hospital Universitario 12 de Octubre (Madrid). Phenotypic and molecular methods were used. RESULTS: A total of 7 bacterial species were identified, with the majority being Klebsiella pneumoniae (K...
November 17, 2016: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27857195/synthesis-of-3r-acetoin-and-2-3-butanediol-isomers-by-metabolically-engineered-lactococcus-lactis
#13
Vijayalakshmi Kandasamy, Jianming Liu, Shruti Harnal Dantoft, Christian Solem, Peter Ruhdal Jensen
The potential that lies in harnessing the chemical synthesis capabilities inherent in living organisms is immense. Here we demonstrate how the biosynthetic machinery of Lactococcus lactis, can be diverted to make (3R)-acetoin and the derived 2,3-butanediol isomers meso-(2,3)-butanediol (m-BDO) and (2R,3R)-butanediol (R-BDO). Efficient production of (3R)-acetoin was accomplished using a strain where the competing lactate, acetate and ethanol forming pathways had been blocked. By introducing different alcohol dehydrogenases into this strain, either EcBDH from Enterobacter cloacae or SadB from Achromobacter xylosooxidans, it was possible to achieve high-yield production of m-BDO or R-BDO respectively...
November 18, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27855076/molecular-characterization-of-oxa-48-like-producing-enterobacteriaceae-in-the-czech-republic-evidence-for-horizontal-transfer-of-poxa-48-like-plasmids
#14
Anna Skálová, Kateřina Chudějová, Veronika Rotová, Matej Medvecky, Vendula Študentová, Eva Chudáčková, Pavel Lavicka, Tamara Bergerova, Vladislav Jakubu, Helena Zemlickova, Costas C Papagiannitsis, Jaroslav Hrabák
The aim of this study was to characterize the first cases and outbreaks of OXA-48-like-producing Enterobacteriaceae recovered from hospital settings, in the Czech Republic. During 2013-2015, twenty-two Klebsiella pneumoniae, three Escherichia coli and one Enterobacter cloacae producing OXA-48-like carbapenemases were isolated from 20 patients. Four of the patients were colonized/infected by two or three different OXA-48-like producers. K. pneumoniae isolates were classified into nine STs, with ST101 being the predominant (n=8)...
November 14, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27835979/pharmacologically-active-flavonoids-from-the-anticancer-antioxidant-and-antimicrobial-extracts-of-cassia-angustifolia-vahl
#15
Shabina Ishtiaq Ahmed, Muhammad Qasim Hayat, Muhammad Tahir, Qaisar Mansoor, Muhammad Ismail, Kristen Keck, Robert B Bates
BACKGROUND: Cassia angustifolia Vahl. (commonly known as senna makkai or cassia senna), native to Saudi Arabia, Egypt, Yemen and also extensively cultivated in Pakistan, is a medicinal herb used traditionally to cure number of diseases like liver diseases, constipation, typhoid, cholera etc. This study was conducted to evaluate the in-vitro antimicrobial, antioxidant and anticancer assays and phytochemical constituents of aqueous and organic extracts of C. angustifolia leaves. METHODS: The antimicrobial activities of C...
November 11, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27828853/prenatal-sonographic-diagnosis-of-urorectal-septum-malformation-sequence-and-chromosomal-microarray-analysis-a-case-report-and-review-of-the-literature
#16
Yan Pei, Qingqing Wu, Yan Liu, Lijuan Sun, Wenxue Zhi, Puqing Zhang
INTRODUCTION: Urorectal septum malformation sequence (URSMS) is a rare congenital abnormal syndrome that is caused by the incomplete division of the cloaca. Based on whether the cloaca membrane breaks down or not, the URSMS are classified as full and partial forms. The prenatal diagnosis of URSMS remains challenging because of poor recognition to this malformation and the relatively non-specific sonographic features. We report a prenatally sonographic diagnosed case of the partial URSMS, and review the literature to summarize the prenatal features...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27826141/rapid-antimicrobial-susceptibility-test-for-identification-of-new-therapeutics-and-drug-combinations-against-multidrug-resistant-bacteria
#17
Wei Sun, Rebecca A Weingarten, Miao Xu, Noel Southall, Sheng Dai, Paul Shinn, Philip E Sanderson, Peter R Williamson, Karen M Frank, Wei Zheng
Current antimicrobial susceptibility testing has limited screening capability for identifying empirical antibiotic combinations to treat severe bacterial infections with multidrug-resistant (MDR) organisms. We developed a new antimicrobial susceptibility assay using automated ultra-high-throughput screen technology in combination with a simple bacterial growth assay. A rapid screening of 5170 approved drugs and other compounds identified 25 compounds with activities against MDR Klebsiella pneumoniae. To further improve the efficacy and reduce the effective drug concentrations, we applied a targeted drug combination approach that integrates drugs' clinical antimicrobial susceptibility breakpoints, achievable plasma concentrations, clinical toxicities and mechanisms of action to identify optimal drug combinations...
November 9, 2016: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/27811685/phasmarhabditis-bonaquaense-n-sp-nematoda-rhabditidae-a-new-slug-parasitic-nematode-from-the-czech-republic
#18
Jiří Nermuť, Vladimír Půža, Tesfamariam Mekete, Zdeněk Mráček
Phasmarhabditis bonaquaense n. sp. is described and illustrated from the body of Malacolimax tenellus, from the locality of České Švýcary near the village of Dobrá Voda, the Czech Republic. Females are characterized by a body length of 2349 (1878-2626) µm and a cupola shaped tail with a long hyaline hair-like tail tip. Extremely prominent papilla-like phasmids present. Males 1829 (1414-2121) µm long. Peloderan bursa with nine pairs of rays (papillae), 1/1/1/2/1/3. One non-paired apparent papilla-like structure located near the ventral appendage anterior to the cloaca...
October 31, 2016: Zootaxa
https://www.readbyqxmd.com/read/27808510/phenanthrenes-from-juncus-inflexus-with-antimicrobial-activity-against-methicillin-resistant-staphylococcus-aureus
#19
Barbara Tóth, Erika Liktor-Busa, Norbert Kúsz, Ádám Szappanos, Attila Mándi, Tibor Kurtán, Edit Urbán, Judit Hohmann, Fang-Rong Chang, Andrea Vasas
The present study has focused on an investigation of the antibacterial effects of Juncus inflexus and the isolation and identification of its active compounds. Eleven phenanthrenes were isolated from a methanolic extract of the roots. Four compounds (jinflexins A-D, 1-4) are new natural products, while seven phenanthrenes [juncuenins A (5), B (6), and D (8), juncusol (7), dehydrojuncuenins A (9) and B (11), and dehydrojuncusol (10)] were isolated for the first time from the plant. Jinflexin D (4) is a dimer with an unprecedented heptacyclic ring system...
November 3, 2016: Journal of Natural Products
https://www.readbyqxmd.com/read/27803698/pathogenicity-of-a-tw-like-strain-of-infectious-bronchitis-virus-and-evaluation-of-the-protection-induced-against-it-by-a-qx-like-strain
#20
Shi-Hong Yan, Yang Chen, Jing Zhao, Gang Xu, Ye Zhao, Guo-Zhong Zhang
Avian infectious bronchitis, a highly contagious disease caused by avian infectious bronchitis virus (IBV), is of considerable economic importance to the poultry industry. New IBV TW-like strains have increasingly emerged in China in recent years; hence, evaluating their pathogenicity and developing a specific vaccine to guard against their potential threat to the poultry industry is important. Here, we examined the pathogenicity of a TW-like IBV strain (GD), and evaluated the protective efficacy of the QX-like strain (JS) against GD in challenge infections in chickens...
2016: Frontiers in Microbiology
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