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biofouling characteristics and identification of preponderant bacteria at different nutrient levels in batch tests of a recirculating cooling water system.understanding the influence of nutrient levels on biofouling control is an important requirement for management strategies in a recirculating cooling water system. nutrient limitation may be one way to control biofouling development without increasing biocide dosing. therefore, this study was carried out to investigate the effects of nutrient levels on biofouling characteristics and to identify the preponderant bacteria in the batch tests with a simulated cooling water system. the biofouling cha ...201121879565
phenolic compounds and biological activity of kitaibelia vitifolia.this study was aimed at evaluating the antioxidant activity and efficacy of the ethanolic extract of the endemic plant species kitaibelia vitifolia in inhibiting the growth of selected fungi and bacteria. antimicrobial activity was tested using the broth dilution procedure for determination of minimum inhibitory concentration (mic). mics were determined for eight selected indicator strains. the highest susceptibility to k. vitifolia ethanolic extract among the bacteria tested was exhibited by ba ...201121877950
[effect of acetylcholine and acetylcholinesterase on the activity of contractile vacuole of amoeba proteus].acetylcholine (ach, 1 microm) stimulates activity of the contractile vacuole of proteus. the effect of ach is not mimicked by its analogs which are not hydrolyzed by acetylcholinesterase (ache), i. e., carbacholine and 5-methylfurmethide. the effect of ach is not sensitive to the blocking action of m-cholinolytics, atropine and mytolone, but is suppressed by n-cholinolytic, tubocurarine. the inhibitors of ache, eserine (0.01 microm) and armine (0.1 microm), suppress the effect of ach on amoeba c ...201121870511
antimicrobial and toxicological activities of five medicinal plant species from cameroon traditional medicine.infectious diseases caused by multiresistant microbial strains are on the increase. fighting these diseases with natural products may be more efficacious. the aim of this study was to investigate the in vitro antimicrobial activity of methanolic, ethylacetate (etoac) and hexanic fractions of five cameroonian medicinal plants (piptadeniastum africana, cissus aralioides, hileria latifolia, phyllanthus muellerianus and gladiolus gregasius) against 10 pathogenic microorganisms of the urogenital and ...201121867554
development of 3d architecture of uropathogenic proteus mirabilis batch culture biofilms-a quantitative confocal microscopy approach.this work studies the development of the 3d architecture of batch culture p. mirabilis biofilms on the basis of morpho-topological descriptors calculated from confocal laser scanning microscopy (clsm) stacks with image processing routines. a precise architectonical understanding of biofilm organization on a morpho-topological level is necessary to understand emergent interactions with the environment and the appearance of functionally different progeny swarmer cells. p. mirabilis biofilms were g ...201121864585
nosocomial infection and characterization of extended-spectrum β-lactamases-producing enterobacteriaceae in northeast brazil.extended spectrum β-lactamases (esbls) are enzymes that degrade β-lactam antibiotics and have been reported to be an important cause of nosocomial infection in worldwide.201121860889
Childhood suppurative otitis media in Abakaliki: isolated microbes and in vitro antibiotic sensitivity pattern.Suppurative otitis media (SOM) is the most common pediatric problem seen by otolaryngologists in Nigeria. Devising simple and effective ways of treating pediatric patients with suppurating ears, especially in situations without a specialist care, will help prevent chronicity. Our experience with som at the ebonyi state university teaching hospital (ebsuth), abakaliki, is reviewed in this study. it may serve as a guide in patient care.201121860131
genetic features of blandm-1-positive enterobacteriaceae.genetic features associated with the bla(ndm-1) gene were investigated in 6 escherichia coli, 7 klebsiella pneumoniae, 1 citrobacter freundii, 1 proteus mirabilis, and 1 providencia stuartii isolate of worldwide origin. clonal diversity was observed for both e. coli and k. pneumoniae. the bla(ndm-1) gene was carried by different plasmid types (inca/c, incf, incl/m, or untypeable) and was likely chromosome borne in two isolates. the bla(ndm-1) plasmids coharbored a variety of resistance determina ...201121859933
dissemination of the rmtb gene carried on incf and incn plasmids among enterobacteriaceae in a pig farm and its environment.to investigate the prevalence and characterization of 16s rrna methylase-producing bacteria in a pig farm and its environment in east china.201121852287
relationship between chemical structure and biological activity of alkali metal o-, m- and p-anisates. ft-ir and microbiological studies.in this work we investigated relationship between molecular structure of alkali metal o-, m-, p-anisate molecules and their antimicrobial activity. for this purpose ft-ir spectra for lithium, sodium, potassium, rubidium and caesium anisates in solid state and solution were recorded, assigned and analysed. microbial activity of studied compounds was tested against escherichia coli, pseudomonas aeruginosa, staphylococcus aureus and proteus vulgaris. in order to evaluate the dependency between chem ...201121852187
Microbiology of the chronic suppurative otitis media.The aim of the study was to determine aetiological agents of chronic suppurative inflammation of the middle ear and their susceptibility to antibiotics, which could lead to better therapeutic decisions and consequently avoidance of appearance of resistance to specific antibiotics. Most frequently isolated agents were Staphylococcus aureus (30.6%), Pseudomonas aeruginosa (22.4%), Klebsiella spp. (10.6%) and Proteus spp. (7.1%). None of the isolates were resistant to ciprofloxacin. High sensitivit ...201121849954
evaluation of abelmoschus moschatus extracts for antioxidant, free radical scavenging, antimicrobial and antiproliferative activities using in vitro assays.abelmoschus moschatus medik. leaves and seeds are considered as valuable traditional medicine. the aromatic seeds of this plant are aphrodisiac, ophthalmic, cardio tonic, antispasmodic and used in the treatment of intestinal complaints and check queasiness. to give a scientific basis for traditional usage of this medicinal plant, the seed and leaf extracts were evaluated for their antioxidant, free radical scavenging, antimicrobial and antiproliferative activities.201121849051
role of bacteria isolates in the spoilage of fermented african oil bean seed ugba.study was carried out to determine the spoilage association of traditionally fermented ugba, product of african oil bean seed. samples were collected from three markets within enugu metropolis in eastern nigeria. microbial population of ugba was isolated, characterized and identified. effect of time on product quality, total viable cell count and individual growth pattern of isolates was evaluated. microorganisms isolated were proteus sp., klebsiella sp., staphylococcus epidermidis, e. coli, bac ...201021848074
the new variant of salmonella genomic island 1 (sgi1-v) from a proteus mirabilis french clinical isolate harbours blaveb-6 and qnra1 in the multiple antibiotic resistance region.the clinical strain of proteus mirabilis vb1248 isolated from a blood culture in august 2009 was multiresistant (i.e. resistant to β-lactams, fluoroquinolones, aminoglycosides and sulphonamides). we searched for the presence of a salmonella genomic island 1 (sgi1).201121846670
evaluation of efficacy of topical povidone-iodine and different types of fluoroquinolones in the sterilization of bacterial flora on the conjunctiva.abstract purpose: to compare the sterilization effectivity of topical povidone-iodine, ciprofloxacin, and ofloxacin on the conjunctival bacterial flora. methods: one hundred sixty-four eyes of 164 patients scheduled for cataract surgery were prospectively analyzed. conjunctival cultures were obtained 1 day before the surgery without any topical application in all patients. conjunctival flora was examined in 53 eyes of 53 patients (group i) 15ôçëmin after 5% topical povidone-iodine application on ...201121834670
microbiology at first visit of moderate-to-severe diabetic foot infection with antimicrobial activity and a survey of quinolone monotherapy.samples from 1295 patients with diabetic foot infection were evaluated; 4332 samples were collected with an average of 3.3 samples per patient. fifty-seven percent of patients had a 2b ulcer and 23% had a 3b ulcer according to texas university classification. in 64.2% of samples collected at first visit an etiologic agent was identified. about 40% of the positive samples were polymicrobial. gram positive bacteria were more frequently isolated (52.6%), staphylococcus aureus was the most frequentl ...201121824673
investigation of the antimicrobial activity of rhaponticum (rhaponticum carthamoides d.c. iljin) and shrubby cinquefoil (potentilla fruticosa l.).the aim of the study was to determine antimicrobial activity of rhaponticum and shrubby cinquefoil extracts. material and methods. ethanol extract from the leaves of rhaponticum (rhaponticum carthamoides d.c. iljin) and shrubby cinquefoil (potentilla fruticosa l.) was produced at the department of food technology, kaunas university of technology. the antimicrobial activity of the viscous extract or rhaponticum and shrubby cinquefoil was evaluated using standard microorganism cultures (bacteria s ...201121822040
surface microbial consortia from livarot, a french smear-ripened cheese.the surface microflora (902 isolates) of livarot cheeses from three dairies was investigated during ripening. yeasts were mainly identified by fourier transform infrared spectroscopy. geotrichum candidum was the dominating yeast among 10 species. bacteria were identified using biotype 100 strips, dereplicated by repetitive extragenic palindromic pcr (rep-pcr); 156 representative strains were identified by either box-pcr or (gtg)(5)-pcr, and when appropriate by 16s rdna sequencing and sds-page an ...201121815832
[russian results of the international epidemiological study of clinical aspects and resistance to antimicrobial medicines of cystitis uropathogens in females (aresc): significance of empiric therapy].a total of 656 female patients from russia aged between 18 to 65 years with uncomplicated cystitis entered the international aresc trial, of them 647 were eligible for final analysis. positive cultural urine tests ( > 10(4) cfu/ml) were in 419 (64.7%) patients, 393 (93.8%) patients had monoinfection. the central laboratory of genoa (to which the isolated samples were sent) has tested 416 uropathogens from 399 patients. the following pathogens were isolated: e. coli (72.6%), enterococcus (7.0%), ...201121815455
composition and antimicrobial activity of achillea distans essential oil.the essential oil of achillea distans w. et k. flower heads was analyzed by gc and gc-ms. altogether 43 components in concentrations more than 0.1% were identified representing 93.5% of the oil composition. the main constituents were 1,8-cineole (16.8%), trans-thujone (9.8%), sabinene (8.2%), borneol (7.5%), beta-pinene (6.5%), and camphor (5.8%). the oil showed moderate activity against staphylococcus aureus and candida albicans, and weak activity against salmonella typhimurium, proteus vulgari ...201121815436
[urinary tract infection in patient after brain injury].intruduction: one of the most important problems in treating patients after head injury is urinary complication. the first place take urinary infections, which disturb rehabilitation process. clean intermittent catherization, bladder training and good care do not preserve infection. the purpose of our study was to present the frequency of urinary infections and main pathogens involved in these infections among patients treated in the department of rehabilitation after head injury.201121812229
effect of curcumin against proteus mirabilis during crystallization of struvite from artificial urine.we investigated the activity of curcumin against proteus mirabilis and the struvite crystallization in relation to urinary stones formation. in order to evaluate an activity of curcumin we performed an in vitro experiment of struvite growth from artificial urine. the crystallization process was induced by proteus mirabilis to mimic the real urinary tract infection, which usually leads to urinary stone formation. the results demonstrate that curcumin exhibits the effect against proteus mirabilis ...201221808656
a computer-assisted diagnostic and treatment concept to increase accuracy and safety in the extracranial correction of cranial vault asymmetries.purpose: proteus syndrome is described as a progressive, asymmetric, disproportional overgrowth of various parts of the body. the theory of somatic mosaicism is widely accepted to be the cause of this disease. affected patients present very heterogeneous symptoms, but in about 30% craniofacial deformities are the leading clinical features. because no causal therapy exists, treatment options are limited to surgical improvement of functional constraints. materials and methods: a computer-assisted ...201121807449
proteus syndrome: a medical rarity. 201121804811
synthesis, characterization, theoretical crystal structure, and antibacterial activities of some transition metal complexes of the thiosemicarbazone (z)-2-(pyrrolidin-2-ylidene)hydrazinecarbothioamide.problem statement. in iraq like most third world countries, attempts discovered new antibiotic drugs derived from thiosemicarbazide and its metal complexes and developed the branch of applied in organic chemistry. approach. new (z)-2-(pyrrolidin-2-ylidene)hydrazinecarbothioamide (l) was synthesized in a good yield by the reaction of pyrrolidone with thiosemicarbazide. co(ii), ni(ii), and cu(ii) complexes of (l) were prepared and characterized by ft-ir, uv/visible spectra, (1)hnmr, and chn analys ...201121804771
giant chondrolipoma of the tongue in a 14-year-old child with mandibular hypertrophy. isolated lesion or regional overgrowth syndrome.chondrolipoma is a rare condition; especially in the oral cavity. the authors described a giant chondrolipoma of the tongue, associated with mandibular and lower lip overgrowth, in a 14-year-old boy. after tumour excision, histopathological examination showed mature cartilage within lobules of mature adipocytes. this is the first case of giant chondrolipoma associated with facial overgrowth. the aetiology and the association with a localized proteus syndrome are discussed.201121802258
in vitro antimicrobial and antioxidant activity of acetone and methanol extracts from thymus leucotrichius (lamiaceae).thymus species has been used as tonic and herbal tea, antiseptic, antitussive, carminative, antioxidant, anti-inflammatory and antimicrobial activities. the acetone and methanol extracts of thymus (t.) leucotrichius (labiatae/lamiaceae) was examined for antimicrobial and antioxidant properties.201121796869
detection of the staphylococcal multiresistance gene cfr in proteus vulgaris of food animal origin.objectives to investigate the presence and the genetic environment of the multiresistance gene cfr in naturally occurring gram-negative bacteria of pigs. methods a total of 391 bacterial isolates with florfenicol mics of =16 mg/l, obtained from 557 nasal swabs of individual pigs, were screened by pcr for the known florfenicol resistance genes. the species assignment of the cfr-carrying isolate was based on the results of gram's staining, colony morphology, 16s rdna sequencing and biochemical pro ...201121795256
synthesis of novel fluconazoliums and their evaluation for antibacterial and antifungal activities.a series of novel fluconazoliums were synthesized and their bioactive evaluation as potential antibacterial and antifungal agents were described. some target compounds displayed good and broad-spectrum antimicrobial activities with low mic values ranging from 0.25 to 64 µg/ml against all the tested strains, including three gram-positive bacteria (staphylococcus aureus, mrsa and bacillus subtilis), three gram-negative bacteria (escherichia coli, pseudomonas aeruginosa and bacillus proteus) as wel ...201121794961
synthesis and studies of novel 2-(4-cyano-3-trifluoromethylphenyl amino)-4-(quinoline-4-yloxy)-6-(piperazinyl/piperidinyl)-s-triazines as potential antimicrobial, antimycobacterial and anticancer agents.a series of novel s-triazine analogs were synthesized and characterized by ir, (1)h nmr, (13)c nmr, (19)f nmr spectroscopy and elemental analysis. preliminary screening of target compounds against eight bacteria (staphylococcus aureus, bacillus cereus, escherichia coli, pseudomonas aeruginosa, klebsiella pneumoniae, salmonella typhi, proteus vulgaris, shigella flexneria), four fungi (aspergillus niger, aspergillus fumigatus, aspergillus clavatus, candida albicans) and mycobacterium tuberculosis ...201121794959
a mosaic activating mutation in akt1 associated with the proteus syndrome.background the proteus syndrome is characterized by the overgrowth of skin, connective tissue, brain, and other tissues. it has been hypothesized that the syndrome is caused by somatic mosaicism for a mutation that is lethal in the nonmosaic state. methods we performed exome sequencing of dna from biopsy samples obtained from patients with the proteus syndrome and compared the resultant dna sequences with those of unaffected tissues obtained from the same patients. we confirmed and extended an o ...201121793738
hamartoma syndromes, exome sequencing, and a protean puzzle.gross malformations have been well known for centuries, even millennia. however, it was not until 1904 that albrecht coined the concept of hamartoma. in 1934, the concept entered the field of developmental pathology generally in reference to tissue malformations. hamartomata are localized overgrowths of a single tissue or combination of tissues, indigenous to the affected body part or organ, usually growing at the same rate as the normal components and causing little pain or functional impairmen ...201121793737
new delhi metallo-ss-lactamase-1: detection and prevention. 201121788418
chemical composition and antimicrobial activity of the essential oil of rosemary.the composition of the essential oil of rosemary was analyzed by gas chromatography-mass spectrometry (gc-ms). 22 components, which constitute 97.41% of the oil, were identified. the major constituents were 1,8-cineole (26.54%) and a-pinene (20.14%). minimum inhibitory concentrations (mics), minimal bactericidal concentration (mbc) and time-kill dynamic processes against three gram-positive bacteria (staphylococcus epidermidis, staphylococcus aureus and bacillus subtilis), three gram-negative ba ...201121787731
new inhibitors of colony spreading in bacillus subtilis and bacillus anthracis.we have recently characterized sliding motility in bacillus subtilis strains that lack functional flagella, and here describe the discovery of inhibitors of colony spreading in these strains as well as the aflagellate pathogen, bacillus anthracis. aflagellate b. subtilis strains were used to screen for new types of antibacterials that might inhibit colony spreading on semi-solid media. from a diverse set of organic structures, p-nitrophenylglycerol (npg), an agent used primarily in clinical labo ...201121784632
[clinical and economic expedience of ertapenem therapy of complicated urinary tract infection].clinical and economic investigation of various antibiotics use in the treatment of complicated urinary tract infection (cuti) was performed under the russian economic environment. the drugs of comparison were ertapenem, ceftriaxone and levofloxacin. direct costs and their structure were shown, and the cost efficiency was calculated. alternative analysis and one-side susceptibility analysis were performed. in complicated urinary tract infections when the major pathogens were escherichia coli, kle ...201121780670
[proteus mirabilis isolated from urine, resistance to antibiotics and biofilm formation].in the rather rare urinary pathogen proteus mirabilis resistance to antibiotics and ability to form biofilm were studied.201121780025
antibacterial activity of selected ethnomedicinal plants from south india.to screen the antimicrobial potential of three ethnomedicinal plants chassalia curviflora thw. (c. curviflora), cyclea peltata hook. f. & thomson (c. peltata) and euphorbia hirta l (e. hirta) used in folk medicines in aarukani hills kani tribe, tamil nadu, india against human bacterial pathogens.201121771680
antibacterial activity of leaves and inter-nodal callus extracts of mentha arvensis l.to determine the anti-bacterial efficacy of chloroform, ethanol, ethyl acetate and water extracts of inter-nodal and leaves derived calli extracts from mentha arvensis (m. arvensis) against salmonella typhi(s. typhi), streptococcus pyogenes(s. pyogenes), proteus vulgaris(p. vulgaris) and bacillus subtilis(b. subtilis).201121771452
carbon nanoparticles-assisted mediator-less microbial fuel cells using proteus vulgaris.recently mediator-less microbial fuel cells (mfcs) are attracting great interest among researchers due to their potential applications to electricity generation as well as wastewater treatment. common mediator-less mfcs employ electroactive bacteria called exoelectrogens to directly transfer electrons to the anode from the bacteria. however, exoelectrogens are rather limited in number and thus may not find general use for practical purposes. here we showed our results in which mediator-less mfcs ...201121764289
comprehensive inhibitor profiling of the proteus mirabilis metalloprotease virulence factor zapa (mirabilysin).in this study we report for the first time the comprehensive inhibitor profiling of the proteus mirabilis metalloprotease virulence factor zapa (mirabilysin) using a 160 compound focused library of n-alpha mercaptoamide dipeptides, in order to map the s(1)(') and s(2)(') binding site preferences of this important enzyme. this study has revealed a preference for the aromatic residues tyrosine and tryptophan in p(1)(') and aliphatic residues in p(2)('). from this library, six compounds were identi ...201121762758
susceptibility of esbl-producing enterobacteriaceae with the new clsi breakpoints.in 2010 clsi lowered the susceptibility breakpoints of some cephalosporins and aztreonam for enterobacteriaceae and eliminated the need to perform esbl screening and confirmatory tests. the aim of this study was to determine how many esbl-producing strains will test susceptible for three common species of enterobacteriaceae using the new breakpoints. as determined with the clsi screening and confirmatory tests, 382 consecutive esbl-producing strains were collected at our hospital between 2007 an ...201121752977
prevalence of sxt/r391-like integrative and conjugative elements carrying blacmy-2 in proteus mirabilis.objectives to characterize the vectors involved in the dissemination of bla(cmy-2) genes in clinical isolates of proteus mirabilis collected between 1999 and 2007. methods plasmid analysis of 19 p. mirabilis carrying ampc genes was performed by pcr-based replicon typing, s1-pfge and southern hybridization with ampc and replicon probes. isolates that could not be characterized were examined for the presence of sxt/r391-like elements. to demonstrate the involvement of these elements in the dissemi ...201121752830
Trimethoprim/sulfametrole: evaluation of the available clinical and pharmacokinetic/pharmacodynamic evidence.Emergence of resistance to widely used trimethoprim/sulfamethoxazole (TMP/SMX) as well as common adverse events in human immunodeficiency virus (HIV)-infected patients casts interest on combinations of TMP with other sulfonamides. Sulfametrole (SMT) combined with TMP could provide a choice for difficult-to-treat infections, particularly when administered intravenously. The objective of this review was to evaluate the available clinical and pharmacokinetic/pharmacodynamic (PK/PD) evidence regardi ...201121741802
detection of volatile compounds produced by microbial growth in urine by selected ion flow tube mass spectrometry (sift-ms).selected ion flow tube-mass spectrometry has been used to measure the volatile compounds occurring in the headspace of urine samples inoculated with common urinary tract infection (uti)-causing microbes escherichia coli, proteus vulgaris, pseudomonas aeruginosa, staphylococcus aureus, staphylococcus epidermidis, klebsiella pneumoniae, enterococcus faecalis, or candida albicans. this technique has the potential to offer rapid and simple diagnosis of the causative agent of utis.201121741416
a new class of 2-(4-cyanophenyl amino)-4-(6-bromo-4-quinolinyloxy)-6-piperazinyl (piperidinyl)-1,3,5-triazine analogues with antimicrobial/antimycobacterial activity.this study presents the synthesis and in vitro pharmacological evaluations of novel 2-(4-cyanophenyl amino)-4-(6-bromo-4-quinolinyloxy)-6-piperazinyl (piperidinyl)-1,3,5-triazines. the title compounds were assayed for their in vitro antimicrobial activity against eight bacteria (staphylococcus aureus, bacillus cereus, escherichia coli, pseudomonas aeruginosa, klebsiella pneumoniae, salmonella typhi, proteus vulgaris, shigella flexneria) and four fungi (aspergillus niger, aspergillus fumigatus, a ...201121740100
antimicrobial activity of two essential oils.the aim of the study was to evaluate the antimicrobial activity of essential oils in vitro for possible application to reduce the content of microorganisms in the air of animal houses. the essential oils of cymbopogon citrarus l. and malaleuca alternifolia l. were screened against bacteria staphylococcus aureus, enterococcus faecium, pseudomonas aeruginosa, escherichia coli, proteus mirabilis and yeast candida albicans. the minimal inhibitory concentration of the active essential oils was tested ...201121739934
Macrodactyly with skin hypertrophy: a minimal form of the Proteus syndrome.The Proteus syndrome was described 1983 . It has asymmetric gigantism of the limbs, verrucous epidermal naevi, cerebriform enlargement of the plantar region, vascular malformations and neoplasms, as lipomas. It received this denomination after Proteus from the Greek mythology, who had the ability to change his form . A 15 year-old boy, reported a congenital hypertrophy with syndactily of the second and third right fingers . The second case is a 35 year-old man, who reported that since birth the ...201121738976
purple urine. 201121738253
microbiological profile with antibiotic sensitivity pattern of cholesteatomatous chronic suppurative otitis media among children.chronic suppurative otitis media (csom) is the most common cause of childhood hearing impairment in the developing countries and atticoantral type is associated with increased incidence of intracranial and extracranial complications. this study was undertaken to define the microbiology of atticoantral type of chronic otitis media and the antibiotic sensitivity pattern, thereby reducing the potential risks of complications.201121715027
antimicrobial resistance patterns of uropathogens among children in istanbul, turkey.urinary tract infections are a common cause of end-stage renal disease in turkey. this prospective study investigated the antibiotic resistance patterns of uropathogens in order to recommend appropriate therapeutic protocols for children with urinary tract infections in istanbul, turkey. between october 2007 and october 2008, children presenting with a first episode of urinary tract infection to a pediatric outpatient clinic were enrolled in the study. urine samples were cultured, and antimicrob ...201121710858
acidic environments induce differentiation of proteus mirabilis into swarmer morphotypes.although swarmer morphotypes of proteus mirabilis have long been considered to result from surfaced-induced differentiation, the present findings show that, in broth medium containing urea, acidic conditions transform some swimmer cells into elongated swarmer cells. this study has also demonstrates that p. mirabilis cells grown in acidic broth medium containing urea enhance virulence factors such as flagella production and cytotoxicity to human bladder carcinoma cell line t24, though no signific ...201121707738
studies of antimicrobial activities of some 4-thiazolidinone fused pyrimidines, [1,5]-benzodiazepines and their oxygen substituted hydroxylamine derivatives.thiazolidin-4-one fused pyrimidines, [1,5]-benzodiazepines and their oxygen substituted hydroxylamine derivatives have been screened for antibacterial, antifungal and antimalarial activity. bacillus subtilis, escherichia coli, proteus mirabilis and salmonella typhi were used for antibacterial screening. aspergillus fumigatus and candida albicans were used for antifungal screening and plasmodium species were used for antimalarial screening. the antibacterial and antifungal activities are expresse ...201021694993
Cerebriform Plantar Hyperplasia: The Clinico-pathological Hallmark of Proteus Syndrome. 201121681363
lateral sinus thrombosis in children: a review.a retrospective study was undertaken to review the clinical presentation, evaluation, management, and outcome of otogenic lateral sinus thrombosis (lst) in children. all pediatric patients with lst seen in our department between 1999 and 2007 were included; there were 9 cases involving 6 boys and 3 girls whose ages ranged from 8 to 12 years. they had all been treated with antibiotics elsewhere prior to admission, and the duration of symptoms before admission ranged from 5 to 18 days. the most co ...201121674459
anti-proliferative activity of meroditerpenoids isolated from the brown alga stypopodium flabelliforme against several cancer cell lines.the sea constitutes one of the most promising sources of novel compounds with potential application in human therapeutics. in particular, algae have proved to be an interesting source of new bioactive compounds. in this work, six meroditerpenoids (epitaondiol, epitaondiol diacetate, epitaondiol monoacetate, stypotriol triacetate, 14-ketostypodiol diacetate and stypodiol) isolated from the brown alga stypopodium flabelliforme were tested for their cell proliferation inhibitory activity in five ce ...201121673894
self-transmissibility of the integrative and conjugative element icepm1 between clinical isolates requires a functional integrase, relaxase, and type iv secretion system.integrative and conjugative elements (ices), which are chromosomal mobile elements, can conjugatively transfer between bacteria. recently, we identified a genomic island of proteus mirabilis, a common agent of catheter-associated urinary tract infection (uti), that possesses all the properties consistent with an ice. this element, designated icepm1, is highly conserved in other causative agents of uti, suggesting its mobility. we demonstrate that icepm1 can actively excise from the chromosome in ...201121665966
jacaranda cuspidifolia mart. (bignoniaceae) as antibacterial agent.abstract this study evaluated, in vitro, the antimicrobial activity of the hexane extract (jche), methanol extract (jcme), and chloroform fraction (jccf) of bark from jacaranda cuspidifolia mart. (family bignoniaceae), a brazilian medicinal plant, traditionally used as anti-syphilis and anti-gonorrhea treatment. the antimicrobial activity was evaluated using the disc diffusion method followed by the determination of minimum inhibitory concentration (mic) values. jche was not active against the b ...201121663482
pcb accumulation and tissue distribution in cave salamander (proteus anguinus anguinus, amphibia, urodela) in the polluted karstic hinterland of the krupa river, slovenia.for over two decades, a manufacturer of electrical capacitors disposed of its waste within the karstic hinterland of the krupa river (slovenia) resulting in the surroundings becomming heavily polluted with pcb. albeit the extent of the contamination has been known since 1983 and the krupa river has become one of the most pcb polluted river in europe, the effects on the cave fauna of the region remain unknown. the most famous cave dweller of the krupa hinterland is the endemic cave salamander pro ...201121658741
synthesis of p-triazinylphosphonium salts--hybrid molecules with potential antimicrobial activity.the new hybrid drugs combining in a single molecule triazine ring attached to phosphonium salt were prepared and their bactericidal activity against gram-positive bacteria staphylococcus aureus atcc43300 (mrsa - methycyline resistant staphylococcus aureus strain) two gram-negative bacteria escherichia coli ccug31997 serotype o153 (epec - enteropathogenic escherichia coli strain), proteus mirabilis 1784 (mdr - multidrug resistant clinical strain) were determined using microdilution method.201121648193
isolation, selection and biodegradation profile of phenol degrading bacteria from oil contaminated soil.in the present study, an aerobic bacterial strains ocs-a and ocs- b were isolated from an oil contaminated soil. the strains were identified to be citrobacter freundi and proteus mirabilis according to morphological, physiological and biochemical characteristics. the strains were able to degrade about 90% of 100 mg/l phenol within 80 h as sole carbon and energy source. the lag phase increased with increase in phenol concentration. determination of metabolic intermediate 2-hms, was done which ind ...201121643832
production of bioactive sheep β-defensin-1 in pichia pastoris.previous research has shown that sheep β-defensin-1 (sbd-1), a small cationic peptide with a broad range of antimicrobial activities, could inhibit the growth of both gram-positive and gram-negative bacteria as well as that of fungi. in order to increase the yield of current ovine defensin purification methods, mature sbd-1 (msbd-1) was added with a 6-his tag on the c-terminus (msbd-1-t) and expressed in pichia pastoris in the presented work. the msbd-1 and msbd-1-t were expressed in the pichia ...201121643707
recognition of dna by the helix-turn-helix global regulatory protein lrp is modulated by the amino terminus.the asnc/lrp family of regulatory proteins links bacterial and archaeal transcription patterns to metabolism. in escherichia coli lrp regulates approximately 400 genes, over 200 of them directly. in earlier studies, lrp genes from vibrio cholerae, proteus mirabilis, and e. coli were introduced into the same e. coli background, and yielded overlapping but significantly different regulons. these differences were seen despite amino acid sequence identities of 92% (vibrio) and 98% (proteus) to e. co ...201121642464
setting interpretive breakpoints for antimicrobial susceptibility testing using disk diffusion.antimicrobial susceptibility testing plays a key role in clinical microbiology. the disk diffusion test dates back to the 1940s and became standardised from the 1950s, with the international collaborative study (ics) and national committee for clinical laboratory standards (nccls) as the two major standards. interlaboratory variation of disk test results was recognised early but has never been dealt with in a satisfactory manner. the error-rate bounded method was described in 1974 and its role i ...201121640560
superior in vitro activity of ertapenem and piperacillin/tazobactam against recent clinical isolates of proteus mirabilis from intra-abdominal infections (smart 2009-2010). 201121632217
molecular analysis of ndm-1-producing enterobacterial isolates from geneva, switzerland.objectives to analyse the mechanisms responsible for decreased susceptibility or resistance to carbapenems in several enterobacterial isolates recovered in 2009-10 in geneva university hospitals, switzerland. methods pcr and sequencing were used to identify β-lactamases, 16s rna methylases and plasmid-mediated quinolone resistance genes. the transferable properties of the plasmids were analysed, as well as their plasmid type. the strains were typed by multilocus sequence typing. results three pa ...201121628303
new delhi metallo-ss-lactamase-1: local acquisition in ontario, canada, and challenges in detection.new delhi metallo-ß-lactamase-1 (ndm-1) is a recently identified metallo-ß-lactamase that confers resistance to carbapenems and all other ß-lactam antibiotics, with the exception of aztreonam. ndm-1 is also associated with resistance to many other classes of antibiotics. the enzyme was first identified in organisms isolated from a patient in sweden who had previously received medical treatment in india, but it is now recognized as endemic throughout india and pakistan and has spread worldwide. t ...201121624908
potentiation of antimicrobial activity of ciprofloxacin by pelargonium graveolens essential oil against selected uropathogens.the recent approach of using herbs and antibiotics in combination constitutes a strategy to overcome the problems of resistance and side effects associated with conventional antibiotics. in the present study, the antimicrobial effect of pelargonium graveolens l' hér essential oil in combination with ciprofloxacin was evaluated on uropathogens, namely, klebsiella pneumoniae kt2, proteus mirabilis prt3 and staphylococcus aureus st2. minimum inhibitory concentrations of p. graveolens essential oil ...201121618302
embolic capture angioplasty of lower extremity lesion following distal embolization.peripheral embolization is a known complication of peripheral artery interventions. it can lead to occlusion of distal vessels leading to significant lower extremity ischemia and complications. peripheral artery interventions involving chronic total occlusions have been shown to have higher rates of complications including distal embolization. although distal embolic protection strategies are available, they are seldom utilized during lower extremity interventions, especially during treatment of ...201121616726
antimicrobial activity of protease inhibitor from leaves of coccinia grandis (l.) voigt.antimicrobial activity of protease inhibitor isolated from coccinia grandis (l.) voigt. has been reported. a 14.3 kda protease inhibitor (pi) was isolated and purified to homogeneity by ammonium sulfate precipitation (20-85% saturation), sephadex g-75, deae sepharose column and trypsin-sepharose affinity chromatography from the leaves of c. grandis. the purity was checked by reverse phase high performance liquid chromatography. pi exhibited marked growth inhibitory effects on colon cell lines in ...201121615062
a novel compound from the marine bacterium bacillus pumilus s6-15 inhibits biofilm formation in gram-positive and gram-negative species.biofilm formation is a critical problem in nosocomial infections and in the aquaculture industries and biofilms show high resistance to antibiotics. the aim of the present study was to reveal a novel anti-biofilm compound from marine bacteria against antibiotic resistant gram-positive and gram-negative biofilms. the bacterial extract (50 μg ml(-1)) of s6-01 (bacillus indicus = mtcc 5559) showed 80-90% biofilm inhibition against escherichia coli, shigella flexneri, proteus mirabilis and s6-15 (ba ...201121614700
intra-pericardial rupture of bacterial hepatic abscess: an unusual cause of 'cardiac' chest pain.we report a rare case of bacterial pericarditis secondary to rupture of liver abscess into the pericardium. the patient presented with cardiac-sounding chest pain and with normal ecg, cxr and troponin-i assay. the initial echocardiogram showed minimal pericardial fluid but, when he later developed overt clinical signs of cardiac tamponade, a ct scan of chest and abdomen revealed a pronounced pericardial effusion. it also revealed an abscess located in the left lobe of liver and this had apparent ...200621611623
surgical approach to extensive hidradenitis suppurativa.background hidradenitis suppurativa (hs) is a chronic suppurative disease of skin with high recurrence. objective to determine factors affecting complications and recurrence of hs in patients who underwent surgery. materials and methods we operated on 15 patients with hs at 36 sites between 1999 and 2009. the affected areas were classified as groin, axilla, buttocks, nuchae, perianal, and perineal. all patients were treated using wide surgical excision under general anesthesia. the methods of re ...201121605246
screening of australian plants for antimicrobial activity against campylobacter jejuni.campylobacter jejuni is the most common cause of acute enteritis in humans, with symptoms such as diarrhoea, fever and abdominal cramps. in this study, 115 extracts from 109 australian plant species were investigated for their antimicrobial activities against two c. jejuni strains using an in vitro broth microdilution assay. among the plants tested, 107 (93%) extracts showed activity at a concentration between 32 and 1024 µg/ml against at least one c. jejuni strain. seventeen plant extracts were ...201121604309
in vitro antimicrobial activity of ten medicinal plants against clinical isolates of oral cancer cases.abstract: background: suppression of immune system in treated cancer patients may lead to secondary infections that obviate the need of antibiotics. in the present study, an attempt was made to understand the occurrence of secondary infections in immuno-suppressed patients along with herbal control of these infections with the following objectives to: (a) isolate the microbial species from the treated oral cancer patients along with the estimation of absolute neutrophile counts of patients. (b) ...201121599889
[beta-lactamases of clinical isolates of enterobacteriaceae family].among 62 clinical strains of enterobacteria, isolated from intestinal tract, representatives of genus escherichia made--67.4%, klebsiella--4.84%, citrobacter--4.84%, enterobacter--8.06%, proteus--6.45%, morganella of 8.06%. preparations of fluorquinolone group--gatifloxacin and moxifloxacin, the number of steady strains being from 0.0% to 33.3%, were the most effective in respect of enterobacteria the investigated strains of enterobacteria showed considerable resistance to beta-lactam antibiotic ...201121598655
clinical features and long-term follow-up of quasi-moyamoya disease in children.background: inherited or acquired disorders and conditions may present in conjunction with moyamoya disease. this condition is known as quasi-moyamoya disease. methods: a retrospective review of 69 moyamoya disease patients treated for the past 20 years identified 7 patients with quasi-moyamoya disease and 5 of them were pediatric patients. results: the mean age at initial diagnosis was 6.4 years (range 5-9). associated disorders were: craniosynostosis, dwarfism with coarctation of aorta, proteu ...201121576916
n-substituted aminomethanephosphonic and aminomethane-p-methylphosphinic acids as inhibitors of ureases.small unextended molecules based on the diamidophosphate structure with a covalent carbon-to-phosphorus bond to improve hydrolytic stability were developed as a novel group of inhibitors to control microbial urea decomposition. applying a structure-based inhibitor design approach using available crystal structures of bacterial urease, n-substituted derivatives of aminomethylphosphonic and p-methyl-aminomethylphosphinic acids were designed and synthesized. in inhibition studies using urease from ...201121559954
identity gene expression in proteus mirabilis.swarming colonies of independent proteus mirabilis isolates recognize each other as foreign and do not merge together whereas apposing swarms of clonal isolates merge with each other. swarms of mutants with deletions in the ids gene cluster do not merge with their parent. thus ids genes are involved in the ability of p. mirabilis to distinguish self from non-self. here we have characterized expression of the ids genes. we show that idsabcde and f are transcribed as an operon, and we define the p ...201121551301
improved detection of ampc β-lactamases in escherichia coli, klebsiella pneumoniae, and proteus mirabilis using new susceptibility breakpoints for third-generation cephalosporins. 201121549542
synthesis and antimicrobial activities of hexahydroimidazo[1,5-a]pyridinium bromides with varying benzyl substituents.variously substituted benzyl bromides were employed to quaternize hexahydrobenzylimidazo[1,5-a]pyridine (a) and the resulting bromides (1-11) were evaluated for their in vitro antimicrobial activity against 10 pathogenic microorganisms: staphylococcus aureus, staphylococcus epidermidis, bacillus cereus, micrococcus luteus, proteus vulgaris, escherichia coli, salmonella typhimurium, klebsiella pneumonia, candida albicans and candida krusei. antimicrobial activities were surprisingly high (mic: 0. ...201121543140
in vitro antimicrobial efficacy of a silver alginate dressing on burn wound isolates.to test the antimicrobial effectiveness of a silver alginate dressing on opportunistic pathogens, namely meticillin-sensitive staphylococcus aureus (mssa) and meticillin-resistant staphylococcus aureus (mrsa), klebsiella spp., enterococcus faecalis, enterococcus faecium, pseudomonas aeruginosa, escherichia coli, enterobacter sakazakii, enterobacter cloacae, serratia marcescens, chryseobacterium indologenes, proteus vulgaris and acinetobacter baumannii.201121537295
antimicrobial resistance in urinary tract pathogens in canada from 2007 to 2009: canward surveillance study.from january 2007 to december 2009 an annual canadian national surveillance study (canward) tested 2943 urinary culture pathogens for antimicrobial susceptibilities following clinical and laboratory standards institute (clsi) guidelines. the most frequently isolated urinary pathogens (n, % of all isolates) were escherichia coli (1581, 54%), enterococci (410, 14%), klebsiella pneumoniae (274, 9%), proteus mirabilis (122, 4%), pseudomonas aeruginosa (100, 3%), and staphylococcus aureus (80, 3%). r ...201121537027
identifying patients harboring esbl-producing enterobacteriaceae on hospital admission: derivation and validation of a scoring system.increases in community-acquired infections caused by extended-spectrum β-lactamase (esbl)-producing enterobacteriaceae have important implications for hospital infection control and empirical antibiotic therapy protocols. we developed and validated a tool for identifying patients harboring these organisms at hospital admission. we retrospectively analyzed chart data for 849 adult inpatients. the derivation cohort included 339 patients admitted to a large rome hospital during 2008, with (n=113) o ...201121537020
lactobacillus fermentum isolated from human colonic mucosal biopsy inhibits the growth and adhesion of enteric and foodborne pathogens.a number of lactobacillus species are used as probiotic strains in order to benefit health. we have isolated l. fermentum from human colonic mucosal biopsy samples that possess antimicrobial activities against entroinvasive and foodborne pathogens such as escherichia coli, salmonella paratyphi a, shigella sonnei, staphylococcus aureus, enterococcus faecalis, proteus mirabilis, pseudomonas aeruginosa, and vibrio sp. in addition to lactic acid, l. fermentum secretes antimicrobial proteinacious com ...201021535608
diversity of somatic coliphages in coastal regions with different levels of anthropogenic activity in sao paulo state, brazil.bacteriophages are the most abundant and genetically diverse viruses on earth, with their complex ecology in both quantitative and qualitative terms. somatic coliphages (sc) have been reported to be good indicators of fecal pollution in seawater. this study focused on determining the concentration of sc and their diversity by electron microscopy in seawater, plankton and bivalve samples collected at three coastal regions são paulo, brazil. the sc counts varied from <1 to 3.4×10(3) pfu/100ml in s ...201121531842
gram-negative bacillary meningitis in egypt.gram-negative bacillary meningitis (gnbm) is a rare disease with a high rate of mortality.201121527836
xanthogranulomatous pyelonephritis.abstract xanthogranulomatous pyelonephritis is an uncommon chronic destructive granulomatous process of renal parenchyma in association with long-term urinary tract obstruction and infection. it affects females more often than males, with a wide range of age, from newborn to elderly. almost all patients are symptomatic and the most common symptoms are flank or abdominal pain, lower urinary tract symptoms, fever, palpable mass, gross hematuria, and weight loss. the common laboratory findings are ...201121526966
microbial isolation and emergence of antimicrobial resistance associated with tigecycline usage.background: with the increasing experience of tigecycline usage, its ecological impact on microorganisms raises concerns but remains unknown. we aimed to analyze the difference in microorganisms isolated before, during, and after tigecycline usage and their susceptibility to antimicrobial agents. methods: between july 2008 and august 2009, 66 patients who received tigecycline monotherapy for more than 2 days at a taiwan medical center were enrolled. antimicrobial susceptibility testing was perfo ...201121524975
synthesis and antimicrobial activity of some novel dicationic sulphonophanes.the synthesis of some novel imidazole-based dicationic sulfonophanes incorporating various spacer units is described. all the sulphonophanes exhibit good antibacterial and antifungal activity against five bacterial strains bacillus subtilis, staphylococcus aureus, vibrio cholera, escherichia coli, proteus vulgaris and human pathogenic fungus candida albicans.201121514980
inhibition of development, swarming differentiation and virulence factors in proteus mirabilis by an extract of lithrea molleoides and its active principle (z,z)-5-(trideca-4',7'-dienyl)-resorcinol.antibacterial activity of lithrea molleoides extract against proteus mirabilis has been previously reported by our group. in the present study, the compound (z,z)-5-(trideca-4',7'-dienyl)-resorcinol (1) was isolated as its responsible active principle. the effects of the compound obtained and of l. molleoides extract on p. mirabilis growth and virulence factors were evaluated. compound 1 showed mic and mbc values of 4000μg/ml. it was found that the extract, at four times the mic, produced comple ...201121514124
[biochemical criteria for severity of colonic dysbacteriosis].the purpose of the investigation was to estimate the content of malondialdehyde (mda) in the coprofiltrates of human beings with bacteriologically verified colonic dysbacteriosis and to clarify a relationship of the amount of mda in the coprofiltrates to the degree of the abnormal qualitative and quantitative composition of microbiocenosis. specimens from 109 subjects aged 19 to 56 years were examined. the change in the level of mda in the coprofiltrates was found to correspond to the impairment ...201121506382
transcriptome of proteus mirabilis in the murine urinary tract: virulence and nitrogen assimilation gene expression.the enteric bacterium proteus mirabilis is a common cause of complicated urinary tract infections. in this study, microarrays were used to analyze p. mirabilis gene expression in vivo from experimentally infected mice. urine was collected at 1, 3, and 7 days postinfection, and rna was isolated from bacteria in the urine for transcriptional analysis. across 9 microarrays, 471 genes were upregulated and 82 were downregulated in vivo compared to in vitro broth culture. genes upregulated in vivo enc ...201121505083
sitafloxacin: in bacterial infections.sitafloxacin is a fluoroquinolone antibacterial with in vitro activity against a broad range of gram-positive and -negative bacteria, including anaerobic bacteria, as well as against atypical pathogens. it is approved in japan for use in a number of bacterial infections caused by sitafloxacin-susceptible strains of staphylococcus spp., streptococcus pneumoniae, other streptococcus spp., enterococcus spp., moraxella catarrhalis, escherichia coli, citrobacter spp., klebsiella spp., enterobacter sp ...201121504249
antibiotic susceptibility and imaging findings of the causative microorganisms responsible for acute urinary tract infection in children: a five-year single center study.we studied the differences in the antibiotic susceptibilities of the microorganisms that causeing urinary tract infections (uti) in children to obtain useful information on appropriate drug selection for childhood uti.201121503201
synergistic combination of chitosan acetate with nanoparticle silver as a topical antimicrobial: efficacy against bacterial burn infections.chitosan and nanoparticle silver are both materials with demonstrated antimicrobial properties and have been proposed singly or combined as constituents of antimicrobial burn dressings. here we show that they combine synergistically together to inhibit the in vitro growth of gram-positive methicillin-resistant staphylococcus aureus (mrsa) and gram-negative bacteria (pseudomonas aeruginosa, proteus mirabilis and acinetobacter baumannii) as judged by bioluminescence monitoring and isobolographic a ...201121502618
identification of bacteria isolated from nasal polyps and their ability to produce superantigens and biofilms in lebanese patients.staphylococcus aureus superantigens and bacterial biofilms have been implicated in the development of chronic rhinosinusitis and nasal polyps. we conducted a study of 32 lebanese patients-21 males and 11 females, aged 15 to 71 years (mean: 39)-to identify bacteria isolated from nasal polyps and to determine if these bacteria produced superantigens and biofilms. polyps were surgically removed, homogenized, and subjected to bacteriologic studies. the presence or absence of s aureus enterotoxin a, ...201121500161
the sensitivities to first-line antibiotic therapy of the common urinary tract bacterial infections detected in urine samples at a hospital in metropolitan kampala (uganda).urinary tract infections (utis) are among the most common human infections. many urinary tract bacteria are capable of expressing drug resistance. resistant bacteria may be present from the commencement of the infection or may develop during treatment. this study focused on the problem of antibiotic resistance to the first-line drugs that were used to treat patients presenting with urinary tract infections at rubaga hospital in kampala, uganda.200721499486
potential use of 68ga-apo-transferrin as a pet imaging agent for detecting staphylococcus aureus infection.(67)ga citrate has been extensively used to detect infection and inflammation since 1971. however, its clinical utility is compromised due to several limitations. the present project explored whether (68)ga-apo-transferrin ((68)ga-tf), when prepared in vitro, is a useful agent for positron emission tomography (pet) imaging of bacterial infection.201121492788
[cmy-2-type plasmid-mediated ampc ß-lactamases emerging in tucumán, argentina].in the last years, enterobacteriaceae such as klebsiella pneumoniae, proteus mirabilis and escherichia coli, have acquired resistance to third-generation cephalosporins (c3g) because of the presence of plasmid-mediated ampc ß-lactamases. the aim of this work was to detect plasmid ampc enzymes and to investigate the predominant types in our region. between march and july 2009, 733 consecutive isolates of enterobacteriaceae derived from hospitals and outpatient centers were studied. susceptibility ...201121491062
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