| uncommon cause of chest pain in a renal transplantation patient with autosomal dominant polycystic kidney disease: a case report. | autosomal dominant polycystic kidney disease (adpkd) is a common cause of end-stage renal disease (esrd) and, because of its intrinsic systemic involvement, its treatment can be a medical and surgical challenge. this condition is often associated with the presence of hepatic cysts and their prevalence generally increases with age. most patients remain asymptomatic, but some of these will develop complications associated with enlargement and infection of their cysts. chest pain is a rare manifest ... | 2012 | 23026633 |
| evidence-based docking of the urease activation complex. | ureases require accessory proteins for their activation and proper function. in klebsiella aerogenes, ured, uref, ureg, and uree are sequentially complexed to ureabc as required for its activation. until now, only low-resolution structures are available for this activation complex. to circumvent such limitation, our work intends to provide an atomic-level model for the (ureabc-uredfg)₃ complex from k. aerogenes, by employing comparative modeling associated to sequential macromolecular dockings, ... | 2013 | 22962938 |
| isolation and characterization of a bacteriophage f20 virulent to enterobacter aerogenes. | an aquatic phage, designated f20, was characterized and its physico-chemical characteristics studied. f20 was specifically virulent to only two strains of enterobacter aerogenes (atcc 13048 and the multi-drug-resistant strain k113) among other species tested (n = 15). it was classified in the family siphoviridae of t1-like viruses and contained a linear dsdna genome estimated to be 51.5 kbp enclosed by an isometric capsid of 50±2 nm in diameter and a tail of 150±3 nm in length. f20 was able to s ... | 2012 | 22764320 |
| binuclear metallohydrolases: complex mechanistic strategies for a simple chemical reaction. | binuclear metallohydrolases are a large family of enzymes that require two closely spaced transition metal ions to carry out a plethora of hydrolytic reactions. representatives include purple acid phosphatases (paps), enzymes that play a role in bone metabolism and are the only member of this family with a heterovalent binuclear center in the active form (fe(3+)-m(2+), m = fe, zn, mn). other members of this family are urease, which contains a di-ni(2+) center and catalyzes the breakdown of urea, ... | 2012 | 22698580 |
| bioconversion of glycerol to ethanol by a mutant enterobacter aerogenes. | the main objective of this research is to develop, by adaptive evolution, mutant strains of enterobacter aerogenes atcc 13048 that are capable of withstanding high glycerol concentration as well as resisting ethanol-inhibition. the mutant will be used for high ethanol fermentation from glycerol feedstock. ethanol production from pure (p-) and recovered (r-) glycerol using the stock was evaluated. a six-tube-subculture-generations method was used for developing the mutant. this involved subcultur ... | 2012 | 22455837 |
| klebsiella aerogenes uref: identification of the ureg binding site and role in enhancing the fidelity of urease activation. | the ni-containing active site of klebsiella aerogenes urease is assembled through the concerted action of the ured, uree, uref, and ureg accessory proteins. uree functions as a metallochaperone that delivers ni to a ured-uref-ureg complex bound to urease apoprotein, with ureg serving as a gtpase during enzyme activation. this study focuses on the role of uref, previously proposed to act as a gtpase activating protein (gap) of ureg. sixteen conserved uref surface residues that may play roles in p ... | 2012 | 22369361 |
| promiscuity comes at a price: catalytic versatility vs efficiency in different metal ion derivatives of the potential bioremediator gpdq. | the glycerophosphodiesterase from enterobacter aerogenes (gpdq) is a highly promiscuous dinuclear metallohydrolase with respect to both substrate specificity and metal ion composition. while this promiscuity may adversely affect the enzyme's catalytic efficiency its ability to hydrolyse some organophosphates (ops) and by-products of op degradation have turned gpdq into a promising candidate for bioremedial applications. here, we investigated both metal ion binding and the effect of the metal ion ... | 2013 | 22366468 |
| deletion of lactate dehydrogenase in enterobacter aerogenes to enhance 2,3-butanediol production. | 2,3-butanediol is an important bio-based chemical product, because it can be converted into several c4 industrial chemicals. in this study, a lactate dehydrogenase-deleted mutant was constructed to improve 2,3-butanediol productivity in enterobacter aerogenes. to delete the gene encoding lactate dehydrogenase, λ red recombination method was successfully adapted for e. aerogenes. the resulting strain produced a very small amount of lactate and 16.7% more 2,3-butanediol than that of the wild-type ... | 2012 | 22297429 |
| isolation and identification of chromium-resistant bacteria: test application for prevention of chromium toxicity in plant. | the purpose of this study was to isolate chromium resistant bacteria and characterize in depth before being applied for bioremediation or construction of chromium biosesnors. one of the major objectives was to identify the most useful strains with respect to chromium removal efficiency. chromium resistant bacteria were isolated from tannery waste samples. these were characterized through biochemical tests and antibiotic assays. cross metal reactivity, plasmid curing and cysteine quantifications ... | 2012 | 22242876 |
| chemical composition and biological activity of the centipeda minima (asteraceae). | the antimicrobial activity of the centipeda minima l. (asteraceae) extract was evaluated against seven microorganisms using the disc diffusion method. the extract showed a broad spectrum of antimicrobial activity against all the tested bacterial strains, especially enterobacter aerogenes, klebsiella pneumonia, staphylococcus aureus and yersinia enterocolitica. the chemical composition of the extract obtained from centipeda minima was analysed by gc-ms. twentythree compounds, constituting about 8 ... | 2007 | 22692191 |
| cleaning and disinfection of blenders used in hospital kitchens. | the efficiency of a range of methods used to clean and disinfect blenders was compared. blenders with metal, plastic and glass goblets were experimentally contaminated with klebsiella aerogenes after which they were cleaned and disinfected by (a) cold water rinse, (b) detergent wash, (c) detergent wash and disinfectant soak, (d) detergent wash and boiling water rinse and (e) autoclaving. autoclaving was the only procedure that sterilized the blenders but this could only be used for blenders with ... | 1991 | 26927842 |
| experimental and modeling studies of a four-trophic level predator-prey system. | experimental studies of a microbial food chain involving organic carbon substrates,enterobacter aerogenes, and ciliate protozoansparamecium primaurelia anddldinium nasutum were conducted in stirred, aerated batch cultures. quantitative measurements were made of organic carbon levels and of cell numbers, mean cell volumes, and total biovolumes for all three microbial populations. a mathematical model based on monod kinetics was developed to describe this four-trophic level predator-prey system. t ... | 1982 | 24225890 |
| bacterial feeding by the rotifer brachionus calyciflorus: clearance and ingestion rates, behavior and population dynamics. | the rotifer brachionus calyciflorus is capable of collecting and ingesting cells or short chains of a laboratory-grown bacterium aerobacter aerogenes. clearance rate, the volume of water effectively processed animal (-1)h(-1), does not vary systematically with bacterial density between 0.01 and 100 μg dry weight ml(-1). consequently, ingestion rates are strongly density-dependent, reaching maximal values at the highest food densities tested. bacterial feeding rates are consistently lower than th ... | 1979 | 28310458 |
| inhibitory effects of copper on bacteria related to the free ion concentration. | cu(2+) ion determinations were carried out in complex and in inorganic salts-glycerol media, to which increasing amounts of cu(ii) had been added, with the ion-specific cu(ii)-selectrode. likewise, complexing capacity of bacterial suspensions was estimated by titration with cuso4.copper-sensitive bacteria, e.g.,klebsiella aerogenes, were inhibited in their growth and survival in the range of 10(-8)-10(-6) m cu(2+) ion concentrations. in copper-buffered complex media, high copper loads could be t ... | 1979 | 24232421 |
| transport equations for a microbial predator-prey community. | a transport equation is used which describes the temporal behavior of interacting populations in changing environments. the formulation takes into account the internal state variables of the individuals. the general theory is applied to the transient analysis of a microbial predator-prey system using an approximate model for the specific cell growth rate and multigroup formulism to approximate the mass distribution within the population. experimental results in atetrahymena pyriformis- aerobacte ... | 1977 | 24233466 |
| the presence of a aerogenes as indicator of faecal pollution. | | 1951 | 24540291 |
| green synthesis of silver nanoparticles from grape and tomato juices and evaluation of biological activities. | the biosynthesis of silver nanoparticles (agnps) is substantial for its application in lots of fields. tomato and grape fruit juices were used as a reducing and capping agents for the biosynthesis of agnps. ultraviolet spectroscopic analysis offered peaks in the range of 396‒420 nm that indicate the production of agnps. fourier transform infrared spectroscopy analysis revealed attachment of different functional groups with ag ion in both tomato and grape fruit extracts nps. the x‒ray diffraction ... | 2017 | 28477003 |
| draft genome sequence of a multidrug-resistant kpc-2-producing enterobacter aerogenes isolated from a hospitalized patient, brazil. | multidrug-resistant (mdr) enterobacter aerogenes strains are frequently associated with nosocomial infections and high mortality rates, representing a serious public health problem. | 2017 | 28764940 |
| evaluation of the rapid polymyxin np test for polymyxin b resistance detection using enterobacter cloacae and enterobacter aerogenes isolates. | background: polymyxin resistance is an increasing problem worldwide. currently, determining susceptibility to polymyxins is problematic and lengthy. polymyxins diffuse poorly into agar, potentially giving inaccurate disk diffusion and etest results. a rapid screening test (2 h) for detection of polymyxin-resistance in enterobacteriaceae, developed by nordmann and poirel (rapid polymyxin np test, 2016), detects glucose metabolization in the presence of polymyxins e and b via ph-induced color chan ... | 2017 | 28747375 |
| multidrug resistant bacteria are sensitive to euphorbia prostrata and six others cameroonian medicinal plants extracts. | multidrug resistant (mdr) bacteria are responsible for therapeutic failure and there is an urgent need for novels compounds efficient on them. | 2017 | 28743314 |
| formate and nitrate utilization in enterobacter aerogenes for semi-anaerobic production of isobutanol. | anaerobic bioprocessing is preferred because of its economic advantages. however, low productivity and decreased growth of the host strain have limited the use of the anaerobic process. anaerobic respiration can be applied to anoxic processing using formate and nitrate metabolism to improve the productivity of value-added metabolites. we constructed isobutanol-producing strains using enterobacter aerogenes as a host strain by metabolic engineering approaches. the byproduct pathway (ldha, buda, a ... | 2017 | 28731532 |
| development of an isothermal amplification-based assay for the rapid visual detection of salmonella bacteria. | the efficient and timely detection of pathogens is a major concern worldwide. the aim of this study was to establish a rapid detection method for salmonella bacteria in food samples to facilitate timely treatment. widely used detection methods currently include culture-based methods and pcr-based methods. the former are time consuming, requiring 2 to 3 d, whereas the latter have higher accuracy but are typically complicated, requiring expertise and expensive instruments. in this study, a sensiti ... | 2017 | 28711269 |
| pyrazinone derivatives from the coral-derived aspergillus ochraceus lcj11-102 under high iodide salt. | five new pyrazin-2(1h)-one derivatives, ochramides a-d (1-4) and ochralate a (5), as well as three known analogues (6-8) were isolated from the fermentation broth of the marine coral-derived halotolerant aspergillus ochraceus lcj11-102 in a nutrient-limited medium containing 10% nai. their chemical structures were determined by analyzing nmr and x-ray diffraction data. compounds 2, 5 and 6 showed antimicrobial activities against enterobacter aerogenes with the mic values of 40.0, 18.9, and 20.1 ... | 2017 | 28710560 |
| effect of surface roughness in model and fresh fruit systems on microbial inactivation efficacy of cold atmospheric pressure plasma. | this study investigates the efficacy of cold atmospheric pressure plasma (capp) on microbial inactivation as influenced by surface roughness of two types of surfaces: sandpaper and fresh fruit peel. different grits of closed-coat sandpaper were selected, with their roughness (pq) values ranging from 6 to 16 μm. apple, orange, and cantaloupe peels were selected for roughness values that were similar to the sandpapers. the sandpapers and the fruit peel surfaces were spot inoculated with enterobact ... | 2017 | 28708029 |
| biosurfactant-enhanced hydrogen production from organic fraction of municipal solid waste using co-culture of e. coli and enterobacter aerogenes. | the effect of biosurfactants (surfactin and saponin) on the hydrogen production from organic fraction of municipal solid waste (ofmsw) was investigated using co-culture of facultative anaerobes enterobacter aerogenes and e. coli. the biosurfactants were applied in the concentration ranges of 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5 and 5.0% each. cumulative hydrogen production (p), maximum hydrogen production rate (rmax) and lag phases (λ) were analyzed using modified gompertz model. results revealed t ... | 2017 | 28704737 |
| detection of bacterial sulfatase activity through liquid- and solid-phase colony-based assays. | bacterial arylsulfatases are crucial to biosynthesis in many microorganisms, as bacteria often utilize aryl sulfates as a source of sulfur. the bacterial sulfatases are associated with pathogenesis and are applied in many areas such as industry and agriculture. we developed an activity-based probe 1 for detection of bacterial sulfatase activity through liquid- and solid-phase colony-based assays. probe 1 is hydrolyzed by sulfatase to generate fluorescent n-methyl isoindole, which is polymerized ... | 2017 | 28697587 |
| heat resistance of histidine decarboxylase from gram-negative histamine-producing bacteria in seafood. | precooking of tuna is a potential critical control point (ccp) in the commercial manufacturing of canned tuna. to assess the efficacy of precooking as a ccp, an understanding of the thermal properties of histamine-producing bacteria (hpb) and their histidine decarboxylase (hdc) enzymes is required. the thermal properties of many hpb have been determined, but the thermal resistances of the hdc enzymes are unknown. the purpose of this study was to determine the d- and z-values of selected hdc enzy ... | 2017 | 28696146 |
| emergence of carbapenem-resistant enterobacteriaceae isolated from patients in a university hospital in saudi arabia. epidemiology, clinical profiles and outcomes. | carbapenemase-producing enterobacteriaceae have been steadily spreading worldwide during the last decade. nine patients were identified prospectively and were followed during their hospitalization course to identify the epidemiology, clinical profiles and outcomes. these patients had one or more cultures positive for a cre isolate, contributing to a total of eleven positive cultures from various sites without including duplicates of isolates obtained from the same site. isolates from these patie ... | 2017 | 28642140 |
| detection of new delhi metallo-β-lactamase variants ndm-4, ndm-5, and ndm-7 in enterobacter aerogenes isolated from a neonatal intensive care unit of a north india hospital: a first report. | a total 402 enterobacteriaceae isolates were recovered from blood and rectal swabs of 1,000 infants admitted to the neonatal intensive care unit (nicu) of the jawaharlal medical college and hospital aligarh, india. carbapenamase producers were determined by carba np phenotype biochemical assay. out of 402 isolates, it was the first time three of the isolates were identified as enterobacter aerogenes carrying blandm-4, blandm-5, and blandm-7 genes. these genes were identified by polymerase chain ... | 2017 | 28613981 |
| metabolic engineering of enterobacter aerogenes for 2,3-butanediol production from sugarcane bagasse hydrolysate. | the pathway engineering of enterobacter aerogenes was attempted to improve its production capability of 2,3-butanediol from lignocellulosic biomass. in the medium containing glucose and xylose mixture as carbon sources, the gene deletion of pflb improved 2,3-butanediol carbon yield by 40%, while the deletion of ptsg increased xylose consumption rate significantly, improving the productivity at 12 hr by 70%. the constructed strain, emy-22-galp, overexpressing glucose transporter (galp) in the tri ... | 2017 | 28596073 |
| colistin and polymyxin b susceptibility testing for carbapenem-resistant and mcr-positive enterobacteriaceae: comparison of sensititre, microscan, vitek 2, and etest with broth microdilution. | colistin and polymyxin b remain part of the last line of antibiotics for multi-drug-resistant gram negative bacteria such as carbapenem-resistant-enterobacteriaceae current eucast-clsi joint recommendations are for broth microdilution to be performed for mic testing of colistin. commercial susceptibility testing methods were evaluated and compared against reference broth microdilution (bmd), using a susceptible breakpoint of ≤2mg/l for both colistin and polymyxin b. seventy-six enterobacteriacea ... | 2017 | 28592552 |
| mechanistic insight from calorimetric measurements of the assembly of the binuclear metal active site of glycerophosphodiesterase (gpdq) from enterobacter aerogenes. | glycerophosphodiesterase (gpdq) from enterobacter aerogenes is a binuclear metallohydrolase with a high affinity for metal ions at its α site but a lower affinity at its β site in the absence of a substrate. isothermal titration calorimetry (itc) has been used to quantify the co(ii) and mn(ii) binding affinities and thermodynamics of the two sites in wild-type gpdq and two mutants, both in the absence and in the presence of phosphate. metal ions bind to the six-coordinate α site in an entropical ... | 2017 | 28562023 |
| a rapid salmonella detection method involving thermophilic helicase-dependent amplification and a lateral flow assay. | salmonella is a major foodborne pathogen that is widespread in the environment and can cause serious human and animal disease. since conventional culture methods to detect salmonella are time-consuming and laborious, rapid and accurate techniques to detect this pathogen are critically important for food safety and diagnosing foodborne illness. in this study, we developed a rapid, simple and portable salmonella detection strategy that combines thermophilic helicase-dependent amplification (thda) ... | 2017 | 28526589 |
| enterobacter aerogenes zdy01 attenuates choline-induced trimethylamine n-oxide levels via remodeling gut microbiota in mice. | trimethylamine n-oxide (tmao), which is transformed from trimethylamine (tma) through hepatic flavin-containing monooxygenases, can promote atherosclerosis. tma is produced from dietary carnitine, phosphatidylcholine, and choline via the gut microbes. previous works have shown that some small molecules, such as allicin, resveratrol, and 3,3-dimethyl-1-butanol, are used to reduce circulating tmao levels. however, the use of bacteria as an effective therapy to reduce tmao levels has not been repor ... | 2017 | 28511293 |
| impact of furan derivatives and phenolic compounds on hydrogen production from organic fraction of municipal solid waste using co-culture of enterobacter aerogenes and e. coli. | in the present study, the effect of furan derivatives (furfural and 5-hydroxymethylfurfural) and phenolic compounds (vanillin and syringaldehyde) on hydrogen production from organic fraction of municipal solid waste (ofmsw) was investigated using co-culture of facultative anaerobes enterobacter aerogenes and e. coli. the inhibitors were applied in the concentration ranges of 0.25, 0.5, 1, 2 and 5g/l each. inhibition coefficients of phenolic compounds were higher than those of furan derivatives a ... | 2017 | 28500888 |
| antibacterial activities of the methanol extracts of albizia adianthifolia, alchornea laxiflora, laportea ovalifolia and three other cameroonian plants against multi-drug resistant gram-negative bacteria. | in the last 10 years, resistance in gram-negative bacteria has been increasing. the present study was designed to evaluate the in vitro antibacterial activities of the methanol extracts of six cameroonian medicinal plants albizia adianthifolia, alchornea laxiflora, boerhavia diffusa, combretum hispidum, laportea ovalifolia and scoparia dulcis against a panel of 15 multidrug resistant gram-negative bacterial strains. the broth microdilution was used to determine the minimal inhibitory concentrati ... | 2017 | 28490970 |
| corrigendum: isolation and characterization of a bacteriophage phieap-2 infecting multidrug resistant enterobacter aerogenes. | | 2017 | 28485399 |
| production of l-lactic acid from metabolically engineered strain of enterobacter aerogenes atcc 29007. | in this study, l-lactic acid production was investigated from metabolically engineered strain of e. aerogenes atcc 29007. the engineered strain e. aerogenes sumi01 (δpta) was generated by the deletion of phosphate acetyltransferase (pta) gene from the chromosome of e. aerogenes atcc 29007 and deletion was confirmed by colony pcr. under the optimized fermentation conditions, at 37°c and ph 6 for 84h, the l-lactic acid produced by engineered strain e. aerogenes sumi01 (δpta) in flask fermentation ... | 2017 | 28465055 |
| [effects of vacuum sealing drainage technique in acute and chronic suppurative tenosynovitis of hand]. | objective: to investigate the effects of vacuum sealing drainage technique in acute and chronic suppurative tenosynovitis of hand. methods: a total of 9 cases acute and chronic suppurative tenosynovitis patients from january 2013 to april 2015 in puai hospital affiliated to tongji medical college, huazhong university of science and technology were retrospectively reviewed. there were 6 males and 3 females, aging from 27 to 65 years, the average age was 55 years. there were 3 cases of index finge ... | 2017 | 28464581 |
| a gene cluster at an unusual chromosomal location responsible for the novel o-antigen synthesis in escherichia coli o62 by the abc transporter-dependent pathway. | the o-antigen is a part of the outer membrane of gram-negative bacteria and is related to bacterial virulence. it is one of the most variable cell constituents, and its structural diversity is almost entirely due to genetic variation of the o-antigen gene cluster. in this study, the o-antigen structure of escherichia coli o62 was elucidated by chemical analysis and nuclear magnetic resonance spectroscopy, but showing not consistent with the o-antigen gene cluster between conserved genes galf and ... | 2017 | 28402541 |
| monitoring in vitro antibacterial efficacy of 26 indian spices against multidrug resistant urinary tract infecting bacteria. | to screen methanolic extracts of 26 commonly used indian spices against nine species of uropathogenic bacteria (enterococcus faecalis, staphylococcus aureus, acinetobacter baumannii, citrobacter freundii, enterobacter aerogenes, escherichia coli, klebsiella pneumoniae, proteus mirabilis, and pseudomonas aeruginosa), isolated from clinical samples of a tertiary care hospital for antibacterial activity. | 2014 | 28664089 |
| in vitro antimicrobial activity screening of xylaria hypoxylon. | fungi have a potential of using both as nutritive and medicinal food stuff. because of containing several therapeutic agents, they are reported to be used for hundreds of years to treat several diseases caused by bacteria, fungi, viruses and parasites. the aim of this study is to determine the in vitro antimicrobial activity of xylaria hypoxylon, which were collected from yomra, trabzon, turkey. | 2016 | 28852719 |
| isolation and identification of nonoral pathogenic bacteria in the oral cavity of patients with removable dentures. | dentures in the oral cavity may act as a reservoir of microorganisms, which may be related to systemic infections. the aim of this study was to investigate the nonoral pathogenic bacteria in the oral cavity of patients with removable dentures in shiraz, southern iran. | 2017 | 28852636 |
| low prevalence of carbapenem-resistant enterobacteriaceae among wounded military personnel. | multidrug-resistant organisms (mdros) are a global health problem that affect both civilian and military populations. among wounded warriors, mdros further complicate the care of trauma-related infections, resulting in extended duration of hospitalization, as well as increased morbidity and mortality. during the wars in iraq and afghanistan, extended spectrum β-lactamase-producing enterobacteriaceae were frequently isolated from wounded warriors. the potential emergence of difficult-to-treat car ... | 2017 | 28853114 |
| trends in antimicrobial resistance against enterobacteriaceae strains isolated from blood: a 10-year epidemiological study in mainland china (2004-2014). | antimicrobial resistance is a serious problem that compromises the empirical treatment of infections, resulting in a lack of effective antibiotics and high medical expenses. here, we aimed to monitor the trends in antimicrobial resistance among enterobacteriaceae isolated from blood samples in mainland china. | 2017 | 28836547 |
| perturbation of formate pathway and nadh pathway acting on the biohydrogen production. | the formate pathway and nadh pathway as two common hydrogen-producing metabolic pathways have been well characterized to understand and improve biohydrogen production. these two pathways have been thought to be separate and have been independently investigated. however, in this study, perturbation of genes (hyca, fdhf, fhla, ldha, nuob, hybo, fdh1, narp, and ppk) in enterobacter aerogenes related to the formate pathway or nadh pathway revealed that these two pathways affected each other. further ... | 2017 | 28852065 |
| whole genome of klebsiella aerogenes px01 isolated from san jacinto river sediment west of baytown, texas reveals the presence of multiple antibiotic resistance determinants and mobile genetic elements. | klebsiella aerogenes is a gram-negative bacterium of the family enterobacteriaceae which is widely distributed in water, air and soil. it also forms part of the normal microbiota found in human and animal gastrointestinal tracts. here we report the draft genome sequence (chromosome and 1 plasmid) of k. aerogenes strain px01 compiled at the scaffold level from 97 contigs totaling 5,262,952 bp. k. aerogenes px01 was isolated from sediment along the northern face of burnet bay west of baytown, texa ... | 2017 | 28794987 |
| update of incidence and antimicrobial susceptibility trends of escherichia coli and klebsiella pneumoniae isolates from chinese intra-abdominal infection patients. | to evaluate in vitro susceptibilities of aerobic and facultative gram-negative bacterial (gnb) isolates from intra-abdominal infections (iais) to 12 selected antimicrobials in chinese hospitals from 2012 to 2014. | 2017 | 29254478 |
| incidence and consequences of near-drowning-related pneumonia-a descriptive series from martinique, french west indies. | drowning represents one major cause of accidental death. near-drowning patients are exposed to aspiration that may result in pneumonia with life-threatening consequences. we designed this descriptive study to investigate the frequency, nature, and consequences of post-drowning pneumonia. one hundred and forty-four near-drowning patients (33 children and 111 adults) admitted during four years to the university hospital of martinique, french indies, were included. patients presented pre-hospital c ... | 2017 | 29149019 |
| chemical composition, antioxidant, and antibacterial activity of essential oils from etlingera sayapensis a.d. poulsen & ibrahim. | to report the chemical composition and bioactivity (including antioxidant and antimicrobial activity) of essential oils from the rhizomes, stems, and leaves of etlingera sayapensis (e. sayapensis) a.d. poulsen & ibrahim for the first time. | 2017 | 28942832 |
| assessment of two carrier materials for phosphate solubilizing biofertilizers and their effect on growth of wheat (triticum aestivum l.). | biofertilizers are usually carrier-based inoculants containing beneficial microorganisms. incorporation of microorganisms in carrier material enables easy-handling, long-term storage and high effectiveness of biofertilizers. objective of the present study was to assess enriched biogas sludge and soil as biofertilizer carriers on growth and yield of wheat. six phosphate solubilizing strains were used in this study. three phosphate solubilizing strains, 77-ns2 (bacillus endophyticus), 77-cs-s1 (ba ... | 2017 | 28942836 |
| identification of ideal multi-targeting bioactive compounds against mur ligases of enterobacter aerogenes and its binding mechanism in comparison with chemical inhibitors. | enterobacter aerogenes have been reported as important opportunistic and multi-resistant bacterial pathogens for humans during the last three decades in hospital wards. the emergence of drug-resistant e. aerogenes demands the need for developing new drugs. peptidoglycan is an important component of the cell wall of bacteria and the peptidoglycan biochemical pathway is considered as the best source of antibacterial targets. within this pathway, four mur ligases murc, murd, mure, and murf are resp ... | 2017 | 29086207 |
| impact of heavy metals on hydrogen production from organic fraction of municipal solid waste using co-culture of enterobacter aerogenes and e. coli. | in the present study, the effect of heavy metals (lead, mercury, copper, and chromium) on the hydrogen production from the organic fraction of municipal solid waste (ofmsw) was investigated using co-culture of facultative anaerobes enterobacter aerogenes and e. coli. heavy metals were applied at concentration range of 0.5, 1, 2, 5, 10, 20, 50 and 100 mg/l. the results revealed that lead, mercury, and chromium negatively affected hydrogen production for the range of concentrations applied. applic ... | 2018 | 29426722 |
| prevalence of gram-negative bacilli isolated from the equipment and surfaces in hospital wards of golestan province, north of iran. | nosocomial infections are one of the most common causes of death in hospitals. this study aimed to determine the prevalence of gram-negative bacilli isolated from the equipment in hospital wards of the golestan province, in the year 2015. in this cross-sectional study in 2015, 1980 samples from medical and nonmedical equipment and surfaces were collected from the wards of 13 teaching hospitals, in the golestan province. samples were inoculated into eosin methylene blue agar and blood agar cultur ... | 2017 | 29403653 |
| characterisation of manganese peroxidase and laccase producing bacteria capable for degradation of sucrose glutamic acid-maillard reaction products at different nutritional and environmental conditions. | maillard reactions products (mrps) are a major colorant of distillery effluent. it is major source of environmental pollution due to its complex structure and recalcitrant nature. this study has revealed that sucrose glutamic acid-maillard reaction products (sga-mrps) showed many absorption peaks between 200 and 450 nm. the absorption maximum peak was noted at 250 nm in spectrophotometric detection. this indicated the formation of variable molecular weight maillard products during the sga-mrps f ... | 2018 | 29396692 |
| identification of eayjjpb encoding a dicarboxylate transporter important for succinate production under aerobic and anaerobic conditions in enterobacter aerogenes. | enterobacter aerogenes, a gram-negative, rod-shaped bacterium, is an effective producer of succinate from glucose via the reductive tricarboxylic acid cycle under anaerobic conditions. however, to date, succinate-exporter genes have not been identified in e. aerogenes, although succinate exporters have a large impact on fermentative succinate production. recently, we genetically identified yjjp and yjjb, as genes encoding a succinate transporter in escherichia coli. evaluation of the yjjpb homol ... | 2018 | 29395959 |
| black zira essential oil: chemical compositions and antimicrobial activity against the growth of some pathogenic strain causing infection. | the aim of this study was to perform chemical compositions and phytochemical analysis of black zira essential oil and other goal of this research was to investigate the antimicrobial effects of black zira essential oil against enterobacter aerogenes, pseudomonas aeruginosa, escherichia coli, shigella flexneri, staphylococcus epidermidis, streptococcus pyogenes and candida albicans. black zira essential oil was extracted by hydrodistillation method using clevenger apparatus. black zira essential ... | 2018 | 29360566 |
| preparation and evaluation of antibacterial potential of pithecellobium dulce root extract against gram positive and gram negative bacteria. | in the present study hexane, benzene, ethyl acetate and ethanol extracts of pithecellobium dulce root were prepared using soxhlet extractor. the extracts were evaluated for antibacterial activity against one gram positive (staphylococcus aureus) and three gram negative (acetobacter aceti, acetobacter aceti, klebsiella pneumoniae) strains. disc diffusion method revealed promising antibacterial activity of the extracts prepared in polar solvents (ethyl acetate and ethanol) compared to non-polar so ... | 2018 | 29331370 |
| synthesis, anti-microbial activity, cytotoxicity of some novel substituted (5-(3-(1h-benzo[d]imidazol-2-yl)-4-hydroxybenzyl)benzofuran-2-yl)(phenyl)methanone analogs. | there is a dire need for the discovery and development of new antimicrobial agents after several experiments for a better resistance of microorganisms towards antimicrobial agents become a serious health problem for a few years in the past. as benzimidazole possess various types of biological activities, it has been synthesized, in the present study, a new series of (5-(3-(1h-benzo[d]imidazol-2-yl)-4-hydroxybenzyl)benzofuran-2-yl)(phenyl)methanone analogs by using the condensation and screened f ... | 2018 | 29318401 |
| antibacterial activity of 1-[(2,4-dichlorophenethyl)amino]-3-phenoxypropan-2-ol against antibiotic-resistant strains of diverse bacterial pathogens, biofilms and in pre-clinical infection models. | we recently described the novel anti-persister compound 1-[(2,4-dichlorophenethyl)amino]-3-phenoxypropan-2-ol (spi009), capable of directly killing persister cells of the gram-negative pathogenpseudomonas aeruginosa. this compound also shows antibacterial effects against non-persister cells, suggesting that spi009 could be used as an adjuvant for antibacterial combination therapy. here, we demonstrate the broad-spectrum activity of spi009, combined with different classes of antibiotics, against ... | 2017 | 29312259 |
| antibacterial, and antioxidant potentials of non-cytotoxic extract of trichoderma atroviride. | trichoderma species are a rich source of metabolites, but less known for biomedical potential. this work deals with antibacterial and antioxidant potentials of intracellular non-cytotoxic metabolites, extracted from trichoderma atroviride (knup001). a total of 53 fractions was collected by column chromatography and tested for cytotoxicity by mtt assay. only one fraction (f41) was found to be non-toxic to vero cells with 95.4 ± 0.61% of survival. the f41 was then subjected to chemical analysis, a ... | 2018 | 29307755 |
| ram locus is a key regulator to trigger multidrug resistance in enterobacter aerogenes. | several genetic regulators belonging to arac family are involved in the emergence of mdr isolates of e. aerogenes due to alterations in membrane permeability. compared with the genetic regulator mar, rama may be more relevant towards the emergence of antibiotic resistance. | 2018 | 29297851 |
| screening, nutritional optimization and purification for phytase produced by enterobacter aerogenes and its role in enhancement of hydrocarbons degradation and biofilm inhibition. | in this study, a novel isolate of enterobacter aerogenes isolated from contaminated soils with hydrocarbons had extracellular phytate-degrading activity. enterobacter aerogenes isolates were identified by biochemical tests and confirmed by16s rrna gene products (amplified size 211bp) for genotypic detection. the phytase activity was reached to maximum activity when this isolate was cultivated under the optimal conditions which consisted of using minimal salt medium containing 1%(w/v) rice bran a ... | 2017 | 29269246 |
| antibacterial activities, phytochemical analysis and chemical composition makhlaseh extracts against the growth of some pathogenic strain causing poisoning and infection. | the aim of this study was to investigate the antibacterial activities and phytochemical analysis of extracts against the growth of some pathogenic strain causing poisoning and infection (staphylococcus aureus, streptococcus pyogenes, staphylococcus epidermidis, enterobacter aerogenes, escherichia coli and shigella flexneri). makhlaseh components were identified via gas chromatography/mass spectrometry (gc/ms). total phenolic content (tpc), alkaloids, tannins and saponins were determined. antioxi ... | 2018 | 29203365 |
| risk factors and microbiology of meningitis and/or bacteremia after transsphenoidal surgery for pituitary adenoma. | to investigate the incidence, bacteriologic features, and risk factors of posttranssphenoidal surgery (post-tss) meningitis and/or bacteremia. | 2018 | 29191537 |
| isolation and characterization of antibiotic producing bacterial strains from red soil of himalayan region of pakistan. | the emergence of multi drug resistant microbial pathogens has become a global health challenge and set a dire requirement of searching new effective antimicrobials. soil is an ultimate reservoir of biologically active micro flora, which harbors trillions of microbial strains producing compounds of commercial interest. hence aim of the present study was an attempt to isolate and identify the antibiotic producing microbial strains from the red soil of himalayan an unexplored region of pakistan. in ... | 2017 | 29188775 |
| infections caused by antimicrobial drug-resistant saprophytic gram-negative bacteria in the environment. | drug-resistance genes found in human bacterial pathogens are increasingly recognized in saprophytic gram-negative bacteria (gnb) from environmental sources. the clinical implication of such environmental gnbs is unknown. | 2017 | 29164118 |
| mixed bacterial culture mediated direct conversion of bio-glycerol to diols. | direct and economic transformation of biodiesel derived crude glycerol is gaining more significance. during screening of bacterial cultures klebsiella pneumoniae and enterobacter aerogenes were able to convert crude bio-glycerol to 2,3-butanediol (2,3-bdo) and 1,3-propanediol (1,3-pdo), as major compounds, ethanol and acetoin as minor compounds, with a conversion of 69% and 79% respectively. process optimization could achieve maximum conversion at ph 7.0, 37 °c, 30-40 g/l glycerol and 1.5 g of i ... | 2017 | 29156369 |
| in vitro effects of inulin and soya bean oligosaccharide on skatole production and the intestinal microbiota in broilers. | the experiment was conducted to investigate the in vitro effects of inulin and soya bean oligosaccharide (sbo) on the metabolism of l-tryptophan (l-try) to skatole production, and the intestinal microbiota in broilers. treatments were as follows: caecal microbiota control (cc), cc + inulin, cc + sbo, rectal microbiota control (rc), rc + inulin and rc + sbo. microbial suspensions were anaerobically incubated at 38°c for 24 hr. the results showed that concentrations of skatole and acetic acid were ... | 2017 | 29105163 |
| impairment of nadh dehydrogenase and regulation of anaerobic metabolism by the small rna ryhb and nade for improved biohydrogen production inenterobacter aerogenes. | enterobacter aerogenesis a facultative anaerobe and is one of the most widely studied bacterial strains because of its ability to use a variety of substrates, to produce hydrogen at a high rate, and its high growth rate during dark fermentation. however, the rate of hydrogen production has not been optimized. in this present study, three strategies to improve hydrogen production ine. aerogenes, namely the disruption ofnuocde, overexpression of the small rna ryhb and of nade to regulate global an ... | 2017 | 29093752 |
| emergence of colistin resistance in enterobacter aerogenes from croatia. | a colistin-resistant enterobacter aerogenes [study code 12264] was isolated from the tracheal aspirate of a 71-year-old male patient in the general hospital [gh] in pula, croatia. the patient was previously treated in university hospital centre in rijeka with colistin in order to eradicate acinetobacter baumannii isolate, susceptible only to colistin and tigecycline. genes encoding esbls [blatem, blashv, blactx-m, blaper-1] were screened by pcr. the strain was shown to possess blactx-m-15and bla ... | 2017 | 29063811 |
| infection rate in adult patients with open fractures treated at the emergency hospital and at the ulbra university hospital in canoas, rio grande do sul, brazil. | to identify the infection rate in adult patients with open fractures treated at two tertiary hospitals in the city of canoas, rio grande do sul, brazil. | 2017 | 29062818 |
| [results of a multicenter study investigating plasmid mediated colistin resistance genes (mcr-1 and mcr-2) in clinical enterobacteriaceae ısolates from turkey]. | colistin is a polymyxin antibiotic which is considered as one of the last line agents against infections due to multidrug resistant or carbapenem resistant gram-negative pathogens. colistin resistance is associated with chromosomal alterations which can usually cause mutations in genes coding specific two component regulator systems. the first plasmid-mediated colistin resistance gene, mcr-1 was described in escherichia coli and klebsiella pneumoniae isolates in december 2015 and followed by ano ... | 2017 | 28929967 |
| biological and physicochemical properties of biosurfactants produced by lactobacillus jensenii p6aand lactobacillus gasseri p65. | lactobacillus species produce biosurfactants that can contribute to the bacteria's ability to prevent microbial infections associated with urogenital and gastrointestinal tracts and the skin. here, we described the biological and physicochemical properties of biosurfactants produced by lactobacillus jensenii p6aand lactobacillus gasseri p65. | 2017 | 28927409 |
| hygienic quality, adulteration of pork and histamine production by raoultella ornithinolytica in milkfish dumpling. | ten milkfish dumpling products purchased from retail stores in southern taiwan were collected to determine the occurrence of biogenic amines, histamine-forming bacteria, and adulteration of pork. this study showed the high contents of aerobic plate count (apc), total coliforms (tc) and escherichia coli in tested milkfish dumpling samples, whereas the average content of various biogenic amines in all tested samples was < 1.6 mg/100 g (< 0.05 to 1.54 mg/100 g). three histamine-producing bacterial ... | 2016 | 28911614 |
| donor-derived infections among chinese donation after cardiac death liver recipients. | to investigate blood cultures of deceased donors and report the confirmed transmission of bacterial infection from donors to liver recipients. | 2017 | 28883707 |
| ramr is not involved in the regulation of rama associated antibiotic resistance in salmonella enterica serovar typhi. | rama, a global transcriptional activator, belongs to the arac/xyls family of regulatory proteins and can regulate multidrug resistance through activating the expression of acrab. in salmonella spp., klebsiella pneumonia, enterobacter cloacae and enterobacter aerogenes, ramr represses the transcription of gene rama through binding to the upstream sequences of rama. in this study, we found that the locus and transcription directions of rama-ramr in s. typhi gifu10007 are different from that in s. ... | 2017 | 28882783 |
| pathway engineering of enterobacter aerogenes to improve acetoin production by reducing by-products formation. | enterobacter aerogenes was metabolically engineered for acetoin production. to remove the pathway enzymes that catalyzed the formation of by-products, the three genes encoding a lactate dehydrogenase (ldha) and two 2,3-butanediol dehydrogenases (budc, and dhad), respectively, were deleted from the genome. the acetoin production was higher under highly aerobic conditions. however, an extracellular glucose oxidative pathway in e. aerogenes was activated under the aerobic conditions, resulting in t ... | 2017 | 28859805 |
| determination of histamine in milkfish stick implicated in food-borne poisoning. | an incident of food-borne poisoning causing illness in 37 victims due to ingestion of fried fish sticks occurred in september 2014, in tainan city, southern taiwan. leftovers of the victims' fried fish sticks and 16 other raw fish stick samples from retail stores were collected and tested to determine the occurrence of histamine and histamine-forming bacteria. two suspected fried fish samples contained 86.6 mg/100 g and 235.0 mg/100 g histamine; levels that are greater than the potential hazard ... | 2016 | 28911410 |
| filtration and utilization of laboratory-cultured bacteria by dreissena polymorpha, corbicula fluminea, and carunculina texasensis. | dreissena polymorpha consumed about 6 x 108 escherichia coli from 20 ml of artificial pondwater (apw) in 30 min under laboratory conditions. the clearance rate per mussel was 143 +/- 25 ml g-1 dry tissue min-1. the e. coli used in these studies ranged from about 1.7 to 2.9 {mu}m in length. 35s-labeled e. coli were used to demonstrate that bacteria-derived nutrients were incorporated into mussel tissue. electrophoretic analysis of mussel and bacterial proteins on 12% polyacrylamide gels allowed t ... | 1995 | 29244572 |