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characterization of a second ornithine decarboxylase isolated from morganella morganii.the genes involved in the putrescine formation by morganella morganii were investigated because putrescine is an indicator of food process deterioration. we report here on the existence of a new gene for ornithine decarboxylase (odc) in m. morganii. the sequenced 5,311-bp dna region showed the presence of four complete and one partial open reading frame. putative functions have been assigned to several gene products by sequence comparison with the proteins included in the databases. the third op ...200818389719
in vitro interaction between mecillinam and piperacillin-tazobactam in the presence of azithromycin against members of the enterobacteriaceae family and pseudomonas aeruginosa.mecillinam was tested in vitro alone or in combination with piperacillin-tazobactam and azithromycin against representative species of the enterobacteriaceae family and pseudomonas aeruginosa to extend its antibacterial spectrum, and to protect mecillinam from inactivating enzymes taking advantage of the presence of tazobactam. drug interactions were studied by microdilution method, by selection of spontaneous resistant mutants on agar plates containing the drugs in combination and by time kill ...200818437840
[case of the month; purple urine bag syndrome (pubs)]. 200818460735
effects of rifaximin on bacterial virulence mechanisms at supra- and sub-inhibitory concentrations.rifaximin, a poorly absorbed rifamycin derivative, exhibited time-dependent bactericidal activity and at concentrations as low as 1/32 of the minimum inhibitory concentration (mic) caused morphological alterations in both susceptible and resistant bacterial strains. spontaneous rifaximin-resistant clones appeared with an incidence of 2.6 x 10(-7). the percentage of escherichia coli cells cured of various plasmids ranged from: 4.5-70% (flac), 0-18% (pbp507), 7.7-43.8% (plasmid carrying esbl genes ...200818467244
non-pseudomonal ecthyma gangrenosum present in diclofenac-induced agranulocytosis. 200818474477
extracellular synthesis of crystalline silver nanoparticles and molecular evidence of silver resistance from morganella sp.: towards understanding biochemical synthesis mechanism.there has been significant progress in the biological synthesis of nanomaterials. however, the molecular mechanism of synthesis of such bio-nanomaterials remains largely unknown. here, we report the extracellular synthesis of crystalline silver nanoparticles (agnps) by using morganella sp., and show molecular evidence of silver resistance by elucidating the synthesis mechanism. the agnps were 20+/-5 nm in diameter and were highly stable at room temperature. the kinetics of agnps formation was in ...200818491326
enterobacteriaceae and related organisms isolated from shell eggs collected during commercial processing.in the united states, commercial shell eggs are washed and graded before retail. since passage of the egg products inspection act in 1971, processing guidelines have been set to ensure that external and internal characteristics are maintained. however, less is known about how commercial processing affects the safety of shell eggs. to identify enteric bacteria entering plants and persisting throughout processing, eggs were collected from 3 us commercial shell egg-processing plants on 3 separate v ...200818493013
in vitro activities of tigecycline combined with other antimicrobials against multiresistant gram-positive and gram-negative pathogens.to test the activity of tigecycline combined with 16 antimicrobials in vitro against 22 gram-positive and 55 gram-negative clinical isolates.200818033780
emergence of antibiotic resistance during therapy for infections caused by enterobacteriaceae producing ampc beta-lactamase: implications for antibiotic use.enterobacter spp., serratia marcescens, citrobacter freundii, and morganella morganii are characterized by chromosomally encoded ampc beta-lactamases and possess the ability to develop resistance upon exposure to broad-spectrum cephalosporins. to determine the incidences of the emergence of resistance during antimicrobial therapy for infections caused by these organisms and the effect of the emergence of resistance on patient outcomes, all patients who were admitted to the asan medical center (s ...200818086837
isolation and purification of enterocin e-760 with broad antimicrobial activity against gram-positive and gram-negative bacteria.strain nrrl b-30745, isolated from chicken ceca and identified as enterococcus durans, enterococcus faecium, or enterococcus hirae, was initially identified as antagonistic to campylobacter jejuni. the isolate produced a 5,362-da bacteriocin (enterocin) that inhibits the growth of salmonella enterica serovar enteritidis, s. enterica serovar choleraesuis, s. enterica serovar typhimurium, s. enterica serovar gallinarum, escherichia coli o157:h7, yersinia enterocolitica, citrobacter freundii, klebs ...200818086839
biodegradation of reactive blue 59 by isolated bacterial consortium pmb11.morphologically different, three bacterial strains, capable of decolorizing reactive blue 59 were isolated from dye effluent contaminated soil sample, collected from ichalkaranji, india. the individual bacterial strains viz. bacillus odysseyi suk3, morganella morganii suk5 and proteus sp. suk7 decolorized reactive blue 59 (50 mg l(-1)) completely within 60, 30, 24 h, respectively, while the bacterial consortium pmb11 of these strains required 3 h for the complete decolorization. the decolorizati ...200818661161
[intestinal enterobacteria of the hibernating apis mellifera mellifera l. bees].dynamics of enterobacteria of normal intestinal microflora was studied in apis mellifera mellifera l. bees hibernating under snow in the western urals. the cell numbers (n) of the predominant species klebsiella oxytoca increased from 10-10(6) cfu/bee in november 2004 to 10(4)-10(7) cfu/bee in march 2005; its frequency of occurrence (p) increased from 92 to 100%. increase of providencia rettgeri (11.2004: n up to 10(6), p 25%; 03.2005: n 10(2)-10(6), p 80%) was accompanied by the substitution of ...200818683661
growth, inactivation and histamine formation of morganella psychrotolerans and morganella morganii - development and evaluation of predictive models.mathematical models for growth, heat inactivation and histamine formation by morganella psychrotolerans and morganella morganii were studied to evaluate the importance of these bacteria in seafood. curves for growth and histamine formation by m. psychrotolerans in broth and seafood were generated at constant and changing storage temperatures (n=12). observed and predicted times to formation of 100, 500 and 2000 ppm histamine were used for evaluation of an existing m. psychrotolerans histamine fo ...200818845350
modelling the effect of temperature, carbon dioxide, water activity and ph on growth and histamine formation by morganella psychrotolerans.a mathematical model was developed to predict growth and histamine formation by morganella psychrotolerans depending on temperature (0-20 degrees c), atmosphere (0-100% co2), nacl (0.0-6.0%) and ph (5.4-6.5). data from experiments with both sterile tuna meat and luria bertani broth was used to develop the mathematical growth and histamine formation model. the expanded logistic model with a growth dampening parameter (m) of 0.7 was used as primary growth model. a primary model for histamine forma ...200818845351
highly resistant microorganisms in a teaching hospital: the role of horizontal spread in a setting of endemicity.to determine the incidence density of highly resistant organisms (hros) and the relative contribution of horizontal spread in a setting of endemicity.200818973456
[nationwide susceptibility surveillance of ciprofloxacin and various parenteral antimicrobials against bacteria isolated from patients with severe infections--third ciproxan injection special survey (2005)].we conducted 3 nationwide surveillance studies between 2001 and 2005 at 39 participating institutions throughout japan according to the special survey plan to investigate susceptibility to ciprofloxacin (cpfx) and various parenteral antimicrobials using clinical isolates from patients with severe infection during the reexamination period of parenteral cpfx. results of the first special survey (2001) were already reported in this journal. the current third special survey (2005) was conducted at 3 ...200819024645
[biochemical and bacteriological investigation of six cases of purple urine bag syndrome (pubs) in a geriatric ward for dementia].purple urine bag syndrome is a condition in which the urinary catheter bag turns purple. a tryptophan-indigo hypothesis has been proposed as the mechanism of pubs, in which bacterial decomposition of tryptophan in gut associated with chronic constipation, bacterial overgrowth in the urinary tract and alkaline urine causes production of indigo and discoloration. we considered that further investigation of cases was needed.200819057104
study on the bacterial midgut microbiota associated to different brazilian populations of lutzomyia longipalpis (lutz & neiva) (diptera: psychodidae).the bacterial community associated with the midgut of three brazilian lutzomyia longipalpis (lutz & neiva) populations, two from endemic areas for visceral leishmaniasis (jacobina, bahia state and são luís, maranhão state) and one from a non-endemic area (lapinha cave, minas gerais state), was identified. five groups, 35 females each, from each population were separated; a total of 175 females per collecting area were analyzed. the species identification was based on molecular and traditional ba ...200819061048
[detection of ampc beta-lactamases in gram-negative bacteria isolated from urine].ampc beta-lactamases, enzymes produced by a range of gram-negative bacteria and able to hydrolyse penicillins, monobactams, cephalosporins and cephamycins, are not inhibited by beta-lactamase inhibitors. they are spread via plasmids and pose a huge epidemiological and diagnostic problem. the production of ampc b-lactamases was tested in various gram-negative bacteria. of strains isolated from urine of patients diagnosed with urinary tract infection, we selected those that were resistant to third ...200819069027
studies on antimicrobial activity of perionyx excavatus.the antimicrobial activity of vermiextract was assessed against four human pathogenic microorganisms. especially strains of proteus species are a prominent cause of urinary tract infection in children. the present investigation deals with particular urinary tract pathogenic organisms like e. coli, proteus, providencia, morganella species. screening was performed by disc diffusion method. the zone of inhibition range from 17 to 19 mm against 1.0x10(8) cells of each culture at 1 mg concentration o ...200719090177
in vitro activity of isepamicin and other aminoglycosides against clinical isolates of gram-negative bacteria causing nosocomial bloodstream infections.isepamicin is a newly introduced aminoglycoside in taiwan. since in vitro data for isepamicin against nosocomial gram-negative bloodstream infection from taiwan are limited, we compared the activity of isepamicin, amikacin, gentamicin and tobramycin against nosocomial gram-negative blood isolates.200718087627
occurrence of proteus mirabilis associated with two species of venezuelan oysters.the fecal contamination of raw seafood by indicators and opportunistic pathogenic microorganisms represents a public health concern. the objective of this study was to investigate the presence of enteric bacteria colonizing oysters collected from a venezuelan touristic area. oyster samples were collected at the northwestern coast of venezuela and local salinity, ph, temperature, and dissolved oxygen of seawater were recorded. total and fecal coliforms were measured for the assessment of the micr ...200718157401
morganella morganii sepsis with massive hemolysis.morganella morganii is a facultative gram-negative and anaerobic rod. it may be a cause of devastating infections in neonates and immunocompromised hosts. some bacterial infections such as clostridium and vibrio are associated with hemolysis. however, massive hemolysis caused by m. morganii sepsis has not yet been reported. we observed a 59-yr-old man who had chemotherapy-induced neutropenia and was found to have massive hemolysis and metabolic acidosis due to sepsis. he died 6 hr after admissio ...200718162728
an unusual case of hyperammonemia in a 83-year-old woman.hyperammonemia, with confusion and lethargy, developed in a 83-year-old woman during a urinary tract infection by morganella morganii, a urea-splitting gram-negative bacillus. in this patient, it is thought to have resulted from the production of excessive amounts of ammonia due to bacterial urease and its subsequent reabsorption into systemic circulation. the patient was treated with specific antibiotic therapy, with resolution of the urinary tract infection, progressive reduction in ammonia bl ...200718172374
detection of extended-spectrum beta-lactamases among enterobacteriaceae by use of semiautomated microbiology systems and manual detection procedures.three commercially available microbiology identification and susceptibility testing systems were compared with regard to their ability to detect extended-spectrum beta-lactamase (esbl) production in enterobacteriaceae, i.e., the phoenix automated microbiology system (bd diagnostic systems, sparks, md), the vitek 2 system (biomérieux, marcy l'etoile, france), and the microscan walkaway-96 system (dade behring, inc., west sacramento, ca), using routine testing panels. one hundred fifty putative es ...200717287329
cervical abscess with vaginal fistula after extraperitoneal cesarean section.extraperitoneal cesarean section was once used for the prevention of infection and postoperative adhesion. however, we report an unusual complication after this procedure. a 29-year-old woman had pus discharge from the anterior vaginal wall after extraperitoneal cesarean section. broad-spectrum antibiotics failed to relieve her symptoms and vaginal culture yielded morganella morganii . magnetic resonance imaging, sagittal view, showed a cervical abscess measuring 5 x 5 cm with a tract extending ...200718194912
increased serum iga and igm against lps of enterobacteria in chronic fatigue syndrome (cfs): indication for the involvement of gram-negative enterobacteria in the etiology of cfs and for the presence of an increased gut-intestinal permeability.there is now evidence that chronic fatigue syndrome (cfs) is accompanied by immune disorders and by increased oxidative stress. the present study has been designed in order to examine the serum concentrations of iga and igm to lps of gram-negative enterobacteria, i.e. hafnia alvei; pseudomonas aeruginosa, morganella morganii, proteus mirabilis, pseudomonas putida, citrobacter koseri, and klebsiella pneumoniae in cfs patients, patients with partial cfs and normal controls. we found that the preva ...200717007934
high-level vancomycin-resistant staphylococcus aureus isolates associated with a polymicrobial biofilm.glycopeptides such as vancomycin are the treatment of choice for infections due to methicillin-resistant staphylococcus aureus. this study describes the identification of high-level vancomycin-resistant s. aureus (vrsa) isolates in a polymicrobial biofilm within an indwelling nephrostomy tube in a patient in new york. s. aureus, enterococcus faecalis, enterococcus faecium, micrococcus species, morganella morganii, and pseudomonas aeruginosa were isolated from the biofilm. for vrsa isolates, vanc ...200717074796
evaluation of a new selective chromogenic agar medium for detection of extended-spectrum beta-lactamase-producing enterobacteriaceae.a novel chromogenic agar medium (esbl-bx; biomérieux, marcy l'etoile, france) was compared to macconkey agar supplemented with 2 mg ceftazidime/liter (mckc) for the selective isolation and presumptive identification of extended-spectrum beta-lactamase (esbl)-producing enterobacteriaceae directly from clinical samples. of a total of 644 clinical specimens (including 551 fecal samples), 496 yielded no growth and 148 yielded growth on one or both media. overall, 44 esbl-producing enterobacteriaceae ...200717182756
histidine decarboxylases and their role in accumulation of histamine in tuna and dried saury.histamine-producing bacteria (hpb) such as photobacterium phosphoreum and raoultella planticola possess histidine decarboxylase (hdc), which converts histidine into histamine. histamine fish poisoning (hfp) is attributable to the ingestion of fish containing high levels of histamine produced by hpb. because freezing greatly decreases the histamine-producing ability of hpb, especially of p. phosphoreum, it has been speculated that hfp is caused by hdc itself from hpb cells autolyzing during froze ...200717220267
tension pyopneumothorax. 200717254692
bacterial translocation in small intestinal ischemia-reperfusion injury and efficacy of anti-cinc antibody treatment.the involvement of bacterial translocation in small intestinal ischemia-reperfusion injuries and the efficacy of using anti-cinc antibodies for treatment were investigated. a model for ischemia-reperfusion injury of the small intestine was constructed by clamping the supramesenteric artery (for 90 min) in rats. anti-cinc antibodies and saline were given just before the induction of ischemia in the treatment group and the control group, respectively. six hours after reperfusion, bacteria were det ...200717337893
characterization of in3mor, a new integron carrying vim-1 metallo-beta-lactamase and sat1 gene, from morganella morganii.a carbapenem-resistant morganella morganii clinical isolate that was phenotypically metallo-beta-lactamase (mbl)-positive was recovered from a greek patient. the aim of the study was to analyse the structure of the integron containing the mbl gene.200717341470
antimicrobial activity and pollen composition of honey samples collected from different provinces in turkey.the antibacterial activity of honey samples from different sources were collected and investigated against bacillus cereus, staphylococcus aureus atcc 25923, pseudomonas aeruginosa atcc 27853, klebsiella pneumoniae atcc 27736, morganella morganii, micrococcus luteus nrrl b-4375, escherichia coli atcc 35218, and candida albicans. pathogens exhibited different sensitivities towards the honey samples. the results showed that majority of the honey samples (75%) generally inhibitied the bacteria test ...200717365707
primary urinary tract infection in infants: prophylaxis for uncomplicated pyelonephritis.urinary tract infection (uti) is one of the most common causes of unexplained fever in infants with a reported prevalence range of 5-11%. the clinical and laboratory findings were reviewed, and diagnosis and treatment for 95 infants with primary uti were evaluated in this study.200717371343
pathogens in early-onset and late-onset intensive care unit-acquired pneumonia.to compare the type of pathogens isolated from patients with early-onset intensive care unit (icu)-acquired pneumonia with those isolated from patients with late-onset icu-acquired pneumonia and to study risk factors for the isolation of pathogens that are potentially resistant to multiple drugs.200717385143
insecticidal bacteria isolated from predatory larvae of the antlion species myrmeleon bore (neuroptera: myrmeleontidae).various bacterial species were isolated from the crop (digestive organ) of the antlion species myrmeleon bore and tested for their insecticidal activity against caterpillars by injection. sixty-eight isolates from the antlion crop were grouped into twenty-four species based on homologies of 16s rrna gene sequences and biochemical properties. isolated bacillus cereus, bacillus sphaericus, morganella morganii, serratia marcescens and a klebsiella species killed 80% or more cutworms when injected a ...200717399737
population-based laboratory surveillance for tribe proteeae isolates in a large canadian health region.the tribe proteeae comprises the genera proteus, morganella and providencia. few studies have specifically investigated the epidemiology of infections caused by the proteeae, and none has been conducted in a large non-selected population. the present study was a population-based laboratory surveillance in the calgary health region (population 1.2 million), canada during 2000-2005 that aimed to define the incidence, demographical risk-factors for acquisition and antimicrobial susceptibilities of ...200717403132
albomycin is an effective antibiotic, as exemplified with yersinia enterocolitica and streptococcus pneumoniae.albomycin belongs to the class of sideromycins, compounds composed of iron carriers linked to antibiotic moieties. albomycin was found to be active against bacteria that have a functional ferric hydroxamate transport system meaning that bacteria will actively transport albomycin until they die. we examined the activity spectrum of albomycin for bacterial pathogens and found that enterobacteriaceae except species of proteus and morganella were sensitive. resistance in the two genera was due to th ...200717459767
[purification and characterization of carbonyl enantioselective reductase from morganella morganii j-8].the purification and the characteristics of an enzyme from morganella morganii j-8, which could produce d-pseudoephedrine from 1-phenyl-2-methylamine-acetone, were performed in this study. in this research, first, cells were disrupted by ultrasonic treatment at 4 degrees c. the carbonyl enantioselective reductase was purified with a combination of ammonium precipitation, phenyl superose hydrophobic chromatography, deae anion exchange, and native polyacrylamide gel electrophoresis. the molecular ...200717460900
thirteen-lined ground squirrels (spermophilus tridecemlineatus) harbor multiantibiotic-resistant bacteria.whether wild-caught animals used for biomedical research carry antibiotic-resistant bacteria is not well studied. thirteen- lined ground squirrels (spermophilus tridecemlineatus) are small mammals used to study hibernation. these animals are captured from the wild or are born in laboratory animal facilities to wild-caught mothers. because microorganisms harbored by 13-lined ground squirrels may be pathogenic to their caretakers and other laboratory animals, learning more about antibiotic resista ...200717487947
[genetic markers of pathogenicity of conditionally pathogenic enterobacteria isolated from children with diarrheal diseases].in the process of examination of 89 children from different age groups with diarrheal disease caused by bacteria from enterobacteriaceae family 89 microorganisms were isolated including klebsiella spp. (37 isolates), citrobacter spp. (9 isolates), enterobacter spp. (17 isolates), hafnia alvei (1 isolate), morganella morganii (11 isolates), proteus spp. (14 isolates). presence of genes associated with pathogenicity islands (pais): hlya, hlyb (hemolysin), sfag (fimbria antigen type s), cnf1 (cytot ...200717523471
in vitro activity of ceftaroline (ppi-0903m, t-91825) against bacteria with defined resistance mechanisms and phenotypes.ceftaroline (ppi-0903m, t-91825) is a novel cephalosporin, administered as an n-phosphono prodrug. we investigated its in vitro activity and resistance selection potential.200717548456
gene organization of the ornithine decarboxylase-encoding region in morganella morganii.the production of putrescine is a relevant property related to food quality and safety. morganella morganii is responsible for putrescine production in fresh fish decomposition. the aim of this study was to gain deeper insights into the genetic determinants for putrescine production in m. morganii.200717578420
prevalence, microbiology, and clinical characteristics of extended-spectrum beta-lactamase-producing enterobacter spp., serratia marcescens, citrobacter freundii, and morganella morganii in korea.we examined the prevalence and characteristics of extended-spectrum beta-lactamase (esbl)-producing clinical isolates among enterobacter spp., serratia marcescens, citrobacter freundii, and morganella morganii, and evaluated screening criteria, clinical characteristics and outcomes of infections caused by esbl-producing organisms. between january and june 2005, a total of 493 nonduplicate consecutive isolates were collected at asan medical center, a 2,300-bed tertiary hospital in seoul, republic ...200717587073
changes in histamine and microbiological analyses in fresh and frozen tuna muscle during temperature abuse.temperature abuse of tuna (thunnus alalunga) was carried out in order to assess the histamine buildup in fish-processing facilities where fish can be exposed to high temperatures for short periods of time. histamine production was studied in tuna loins under different storage and abuse conditions. tuna was stored at 0-2 degrees c, 3-4 degrees c, and 6-7 degrees c, and abused for 2 h daily at 20 degrees c and 30 degrees c for 7-12 days. loins abused at 30 degrees c for 2 h daily contained potenti ...200717613069
ctx-m-3-type extended-spectrum beta-lactamase-producing morganella morganii: first description of an isolate from turkey. 200717644345
diversity of microflora in the gut and casts of tropical composting earthworms reared on different substrates.the diversity of fungi, bacteria, yeast, actinomycetes and protozoa were analysed in the gut and casts of eudrilus eugeniae, lampito mauritii, eisenia fetida and perionyx excavatus, both qualitatively and quantitatively as influenced by different feed substrates like clay loam soil, cowdung and pressmud. while actinomycetes (streptomyces albus, s. somaliensis, nocardia asteroides, n. caviae and saccharomonosporia) were not digested by any of these species of worms, protozoa (amoeba proteus, a. t ...200717717992
first report of the emergence of ctx-m-type extended-spectrum beta-lactamases (esbls) as the predominant esbl isolated in a u.s. health care system.ctx-m-type extended-spectrum beta-lactamases (esbls) have become increasingly common worldwide, with the notable exception of the united states, where tem- and shv-type esbls have appeared to predominate. we have noted the emergence of esbls in our health care system (the university health system in san antonio, tx), especially in escherichia coli isolates, that preferentially hydrolyze cefotaxime rather than ceftazidime, suggesting the possibility of ctx-m-type enzymes. microbiology laboratory ...200717724160
[waterhouse-friderichsen syndrome associated to a morganella morganii and enterococcus faecium peritonitis].about fifty to sixty percent of patients with septic shock acquire acute adrenal insufficiency. this insufficiency is most often relative, but can sometimes be absolute. bilateral adrenal haemorrhage is a rare aetiology of absolute acute adrenal insufficiency. it is classically described in patients with severe meningococcemia (purpura fulminans), who commonly present many of the risk factors associated with bilateral adrenal haemorrhage (shock, coagulation disorders, sepsis). we report a case o ...200717766079
[the antibacterial activity of fluoroquinolones against gram-negative bacteria isolated from gifu prefecture (2005)].we investigated the susceptibility to 6 fluoroquinolones against 433 strains of gram-negative bacteria isolated from 6 medical facilities in gifu prefecture between january and september in 2005, determined by the agar dilution methods in according with the japan society of chemotherapy. we also investigated the correlation between the degree of resistance to fluoroquinolones and the amino acid substitutions in the quinolone resistance-determining region (qrdr). the tested clinical isolates were ...200717867488
epidemiology and outcomes of multiple antibiotic-resistant bacterial infection in renal transplantation.mutiresistant bacterial infections are an emerging problem in the nosocomial setting. our objectives were to describe the incidence, outcome, and risk factors for acquisition of multiresistant bacteria among renal transplant recipients.200717889144
bacterial gangs attack implants. 200717918118
isolation of morganella morganii from a domestic rabbit with bronchopneumonia. 200717938414
anti-amebic antibody activity in patients, determined with antigens prepared from virulent parasites (indirect hemagglutination assay and enzyme-linked immunosorbent assay).the serology of amebiasis is affected by low sensitivity and specificity.200717939629
species interactions in mixed-community crystalline biofilms on urinary catheters.previous experimental investigations of the crystalline biofilms that colonize and block urinary catheters have focussed on their formation by pure cultures of proteus mirabilis. in the urine of patients undergoing long-term catheterization, p. mirabilis is commonly found in mixed communities with other urinary tract pathogens. little is known about the effect that the other species have on the rate at which p. mirabilis encrusts catheters. in the present study, a set of data on the nature of th ...200717965358
multiple antimicrobial resistance in enterobacteriaceae isolates from pristine freshwater.a freshwater enterobacterial population (n = 111) was studied for antimicrobial and mercury resistance patterns, and for its possible association with biotic and abiotic factors in that environment. conventional biochemical tests identified klebsiella sp, morganella sp, serratia sp, escherichia sp, enterobacter sp, edwarsiella sp, proteus sp, citrobacter sp, providencia sp, and kluyvera sp. there was no correlation between antimicrobial resistance patterns of isolates and bacterial genera, but r ...200717985304
relationships between plants and enterobacteria that are pathogenic for humans. 200617425047
[evaluation of vitek 2 performance for identifying extended spectrum beta-lactamases in enterobacteriaceae "other than escherichia coli, proteus mirabilis and klebsiella spp"].production of beta-lactamases is the main resistance mechanism of gram-negative bacteria against beta-lactam antibiotics. extended spectrum beta-lactamases (esbls) have the ability to hydrolyze a broader spectrum of beta-lactam drugs. hence rapid, accurate detection of this resistance mechanism is extremely important to guide proper patient antimicrobial therapy. these enzymes are most commonly produced by klebsiella spp. and escherichia coli, but may also occur widely in other gram-negative bac ...200617380089
characterization of the bacterial microflora of the tympanic cavity of eastern box turtles with and without aural abscesses.aerobic bacterial cultures of the tympanic cavity of the middle ear were performed in eight eastern box turtles (terrapene carolina carolina) with aural abscesses and 15 eastern box turtles without aural abscesses (controls) that were admitted to the wildlife center of virginia, virginia, usa during 2003. twenty-two bacterial isolates were identified from 17 turtles including 10 gram-negative and 12 gram-positive bacteria. ten of 15 control animals had bacterial growth, resulting in identificati ...200617255456
occurrence and diversity of integrons and beta-lactamase genes among ampicillin-resistant isolates from estuarine waters.the aim of the present study was to assess the occurrence and molecular diversity of beta-lactamase genes and integrons among gram-negative ampicillin-resistant bacteria from ria de aveiro. ampicillin-resistant isolates were selected and subjected to genotyping using rep-pcr. representatives from each rep pattern were affiliated with the following taxa by sequencing the 16s rrna gene: aeromonas caviae, a. hydrophila, a. media, a. molluscorum, a. veronii, a. salmonicida, aeromonas sp., pseudomona ...200617125975
[pneumatosis cystoides intestini caeci--a pseudotumor presented at autopsy].a large focus of cystic intestinal pneumatosis appeared as an accidental finding in a 59-year-old man suffering from obstructive lung disease, with cor pulmonale as the cause of death. the gas pseudocysts were found in the submucosa, muscularis propria and in the subserosal space. the pseudocysts were lined by flattened cells of connective tissue origin with presence of occasional macrophages. we believe that the lesion started by focal damage of the mucosal membrane, which was followed by penet ...200617171976
morganella morganii infections in a general tertiary hospital.morganella morganii is a commensal gram-negative bacillus of the intestinal tract of humans and other mammals and reptiles. few reports exist in the literature regarding infections caused by this organism.200617180585
morganella psychrotolerans sp. nov., a histamine-producing bacterium isolated from various seafoods.mesophilic morganella morganii (n=6) and psychrotolerant m. morganii-like isolates from various seafoods (n=13), as well as clinical m. morganii isolates (n=3), were characterized by using a polyphasic approach including multi-locus sequencing. based on the phylogenetic analysis, the 22 strains were divided into two distinct groups comprising mesophilic and psychrotolerant isolates, respectively. this classification was supported by dna-dna hybridization studies, whereby a psychrotolerant isolat ...200617012582
incidence of class 1 integrons in multiple antibiotic-resistant gram-negative copiotrophic bacteria from the river torsa in india.the presence of class 1 integrons in multiple-antibiotic-resistant (mar) gram-negative copiotrophic bacteria from the river torsa in india was detected using a polymerase chain reaction (pcr)-based screening method. among 100 isolates that were resistant to at least five of the twelve antibiotics tested, 40 carried class 1 integrons, with inserted dna regions of 0.7-3.2 kb. carriage of integrons in strains of higher mar index was found to be statistically significant. dna sequencing was used to ...200616239097
effect of triclosan on the development of bacterial biofilms by urinary tract pathogens on urinary catheters.to examine (i) the effect of triclosan on the formation of catheter biofilms by urinary tract pathogens and (ii) the diffusion of triclosan through the retention balloons of urinary catheters.200616339844
pharmacologic characteristics of prulifloxacin.prulifloxacin, the prodrug of ulifloxacin, is a broad-spectrum oral fluoroquinolone antibacterial agent. after absorption, prulifloxacin is metabolized by esterases to ulifloxacin. the drug has a long elimination half-life, allowing once-daily administration. in vitro, ulifloxacin is generally more active than other fluoroquinolones against a variety of clinical isolates of gram-negative bacteria, including community and nosocomial isolates of escherichia coli, klebsiella spp., proteus, providen ...200616360331
central nervous system infection caused by morganella morganii.central nervous system (cns) infection with morganella morganii is very rare. we describe a 38-year-old female patient with frontal brain abscess caused by m morganii who was unsuccessfully treated. we also review all reported cases of morganella cns infections with an emphasis on treatment modalities and outcomes. aggressive surgical management and appropriate antimicrobial therapy can lead to cure, but the mortality rate for these infections remains high.200616415665
[beta-lactamases of gram negative bacteria: never-ending clockwork!].the acquired resistance against the wide-spectrum and highly stable beta-lactams including third-generation cephalosporins (3gc) and carbapenems is constinuously increasing and widespead with the discovery of various plasmid-encoded, or genes cassette or integrons coding for a novel beta-lactamase, always a major mechanism of resistance. to explain resistance against 3gc, with the continuing story with tem and shv mutated enzymes, several types of esbl (class a) emerge the ctx-m type, at least c ...200616420989
emergence of dha-1-producing klebsiella spp. in the parisian region: genetic organization of the ampc and ampr genes originating from morganella morganii.eleven klebsiella pneumoniae clinical isolates and one klebsiella oxytoca clinical isolate showing various pulsed-field gel electrophoresis types and producing an inducible dha-1 class c beta-lactamase were isolated in the parisian region between 1998 and 2003. the aim of this study was to compare the genetic organization of the bla(dha-1) genes in this collection of clinical isolates. in four isolates, the morganella morganii-derived genomic region containing bla(dha-1) was inserted in an entir ...200616436717
clonal occurrences of multidrug-resistant gram-negative bacilli: report from the meropenem yearly susceptibility test information collection surveillance program in the united states (2004).the meropenem yearly susceptibility test information collection program is a global, longitudinal resistance surveillance network of more than 100 medical centers worldwide monitoring the susceptibility of bacterial pathogens to carbapenems and other broad-spectrum agents. between 1999 and 2004, a total of 10-16 us medical centers referred up to 200 nonduplicate isolates from clinical infections to a central processing laboratory. over this 6-year period, the antimicrobial activity of 12 broad-s ...200616466890
a rare cause of ludwig's angina by morganella morganii.ludwig's angina is a rapidly spreading and potentially lethal infection involving the floor of the mouth and neck. we present a rare case of ludwig's angina caused by an unusual microorganism, morganella morganii, and the group d alpha-hemolytic streptococcus. to our knowledge, this is the first case of ludwig's angina and deep neck infection caused by morganella morganii. adequate airway maintenance, appropriate use of antibiotics and surgical drainage resulted in survival of the patient withou ...200616483664
biochemical and molecular characterization of three new variants of ampc beta-lactamases from morganella morganii.morganella morganii produces an inducible, chromosomally encoded ampc beta-lactamase. we describe in this study three new variants of ampc within this species with apparent pis of 6.6 (m19 from m. morganii strain pp19), 7.4 (m29 from m. morganii strain pp29), and 7.8 (m37 from m. morganii strain pp37). after gene sequencing, deduced amino acid sequences displayed one to six substitutions when compared to the available morganella ampc sequences. an ampr-encoding gene was also found upstream of am ...200616495258
detection of bacterial strains producing sulbactam- or tazobactam-sensitive beta-lactamases by the use of disks containing the inhibitors alone instead of combining them with antibiotics.the author demonstrated that disks containing beta-lactamase inhibitors sulbactam or tazobactam combined with ampicillin (sam) and piperacillin (tzp) are not suitable for performing the double-disk synergy test (ddst) with the aim of determining the sensitivity of beta-lactamases to these inhibitors. the presence of antibiotics (especially of piperacillin) is so disturbing that the results of testing are not specific. in contrast, the use of disks containing sulbactam or tazobactam alone yields ...200616499654
optimization of ferrioxamine e concentration as effective supplementation for selective isolation of salmonella enteritidis in egg white.utilization of ferrioxamine e (fe) as a sole source of iron distinguishes salmonella from a number of related species, including escherichia coli. fe is not able to serve as a source of iron for e. coli or the proteus-providencia-morganella group. this confers a selective advantage on salmonella enteritidis in egg white supplemented with fe. the optimum concentration of fe that promoted a selective advantage for salmonella in egg white was determined. four supplementation concentrations were eva ...200616541696
isolation of enterobacter sakazakii from stable flies, stomoxys calcitrans l. (diptera: muscidae).enterobacter sakazakii is an opportunistic foodborne pathogen that causes meningitis, enterocolitis, and sepsis, primarily in immunocompromised infants. previously, it was suggested that stable flies, stomoxys calcitrans, were a vector or reservoir of this pathogen. in our study, by means of a culturing approach combined with 16s rdna pcr-restriction fragment length polymorphism genotyping and sequencing, we screened 928 individual stable flies collected in kansas and florida. two stable flies ( ...200616541702
exoproducts of the escherichia coli strain h22 inhibiting some enteric pathogens both in vitro and in vivo.the antagonistic activity of the escherichia coli strain h22 against enteric bacteria was studied both in vitro and in vivo.200616553738
early onset morganella morganii sepsis in a newborn infant with emergence of cephalosporin resistance caused by depression of ampc beta-lactamase production..a preterm infant with early onset morganella morganii sepsis was treated with cefotaxime and gentamicin after confirmation of antimicrobial susceptibility. the infant developed persistent ventriculitis caused by the emergence of a cefotaxime-resistant morganella variant with derepression of its ampc beta-lactamase. when choosing antibiotic therapy, the risk of development of resistance to cephalosporins should be considered in infections caused by m. morganii and other gram-negative organisms wi ...200616567997
morganella morganii pericarditis 3 years after allogenic bone marrow transplantation for mantle cell lymphoma.we report herein a case of morganella morganii-associated acute purulent pericarditis that developed 3 years after allogenic bone marrow transplantation. the patient was successfully treated with surgical drainage and cefotaxime for 6 weeks. splenectomy and immunosuppression for chronic gvh-d are likely to have favored the development of this rare infectious complication after bmt. m. morganii should be added to the list of bacteria causing purulent pericarditis, especially in immunocompromised ...200616569434
formation of histamine and biogenic amines in cold-smoked tuna: an investigation of psychrotolerant bacteria from samples implicated in cases of histamine fish poisoning.two outbreaks and a single case of histamine fish poisoning associated with cold-smoked tuna (cst) were reported in denmark during 2004. the bacteria most likely responsible for histamine formation in cst implicated in histamine fish poisoning was identified for the first time in this study. product characteristics and profiles of biogenic amines in the implicated products were also recorded. in the single poisoning case, psychrotolerant morganella morganii-like bacteria most likely was responsi ...200616629036
improved production of enzymes, which are expressed under the pho regulon promoter, in the rmf gene (encoding ribosome modulation factor) disruptant of escherichia coli.using a dna macroarray, we investigated the effects of rmf gene (encoding ribosome modulation factor) disruption on gene expression profiles in escherichia coli. this strain showed a phosphate-starvation-like response in gene expression even under phosphate sufficient conditions; significant upregulation of the pho regulon genes was observed. further, the production of alkaline phosphatase, a product of the pho regulon gene, phoa, increased in the rmf disruptant under a pi sufficient condition. ...200616636463
first report of morganella morganii producing ctx-m-15 beta-lactamase. 200616690259
integron presence in a multiresistant morganella morganii isolate.a multiresistant strain of morganella morganii was isolated from a patient affected by several severe pathologies. the isolate was found to be resistant to the following antimicrobials: ampicillin, nalidixic acid, cefalothin, cefoxitin, ceftriaxone, ciprofloxacin, chloramphenicol, streptomycin, erythromycin, gentamicin, novobiocin, penicillin, rifampicin, tetracycline and violet crystal. mechanisms leading to this multiresistance were studied. porins of m. morganii multiresistant and wild-type s ...200616690260
[a puzzle of the physician and the patient]. 200616835961
clinical characteristics and risk factors for mortality in morganella morganii bacteremia.to clarify the clinical characteristics and risk factors for mortality of patients with morganella morganii bacteremia.200616926980
adverse effects of increased intra-abdominal pressure on small bowel structure and bacterial translocation in the rat.the purpose of this study was to evaluate the effects of elevated intra-abdominal pressure (iap) on intestinal structures and bacterial translocation in the rat.200616968194
[penile skin necrosis after application of a ring and defect coverage by a skin mesh graft].penile strangulations are rare and always need an individual emergency treatment. functional impairment and loss of organ integrity are the most serious complications.200617004184
evaluation of antimicrobial activity of the stem bark of cylicodiscus gabunensis (mimosaceae).ethyl acetate (ea) extract of the stem bark of cylicodiscus gabunensis (cg) was analysed phytochemically and evaluated for its antimicrobial activity against 17 pathogenic species isolated from patient: escherichia coli, klebsiella pneumoniae, shigella dysenteriae, shigella flexneri, morganella morganii, proteus vulgaris, proteus mirabilis, salmonella typhi, citrobacter freundii, enterobacter cloacae, enterobacter agglomerans, staphylococcus aureus, streptococcus feacalis, pseudomonas aeruginosa ...200620162076
[pyrazinamidase activity of bacteria from enterobacteriaceae family as characteristic for taxonomy].pyrazinamidase activity in 330 strains of bacteria from enterobacteriaceae family (14 genus, 27 species) has been assessed. pyrazinamidase activity detected in species from following genuses: citrobacter, escherichia, klebsiella, kluyvera, morganella, providencia, raourtella, salmonella, shigella, and also in proteus mirabilis, and nonpathogenic serovars of yersinia enterocolitica, y. frederiksenii. pirasinamidase was absent in serratia (s. marcescens, s. liguefaciens), hafnia alvei, p. vulgaris ...200617297889
evaluation of the new vitek 2 gn card for the identification of gram-negative bacilli frequently encountered in clinical laboratories.the new vitek 2 gn card (biomérieux, marcy-l'etoile, france) was developed for better identification of fermenting and nonfermenting bacilli. this new card allows the identification of 159 taxa. a total of 426 isolates (331 fermenting and 95 nonfermenting gram-negative bacilli) belonging to 70 taxa covered by the database were evaluated. all isolates were identified in parallel with the id 32 gn, the api 20e, and the api 20ne methods. the system correctly identified 97.4% (n=415) of the strains. ...200516261305
outbreaks of contaminated broncho-alveolar lavage related to intrinsically defective bronchoscopes.from 5 march 2001 to 19 october 2001, outbreaks of broncho-alveolar lavage (bal) contamination with enterobacteraceae were detected in our 700-bed institution. we report the investigation of these outbreaks. a case was defined as the occurrence of pairs of specific enterobacteraceae in bal specimens among any patients who underwent bronchoscopy in the respiratory unit during the period of the outbreak. contamination was identified in 117 bal samples during three outbreaks among 418 patients, and ...200515893850
significant histamine formation in tuna (thunnus albacares) at 2 degrees c--effect of vacuum- and modified atmosphere-packaging on psychrotolerant bacteria.occurrence and importance of psychrotolerant histamine producing bacteria in chilled fresh tuna were demonstrated in the present study. the objective was to evaluate microbial formation of histamine and biogenic amines in chilled fresh tuna from the indian ocean and stored either vacuum-packed (vp) or modified atmosphere-packed (map). firstly, biogenic amines and the dominating microbiota were determined in vp tuna involved in an outbreak of histamine fish poisoning in denmark. secondly, the mic ...200515925710
surveillance of antimicrobial resistance in bulgaria--a synopsis from bulstar 2003.we introduce bulgarian surveillance tracking antimicrobial resistance (bulstar) and make the first report on surveillance data for 2003. this longitudinal surveillance programme monitors the isolation and antimicrobial susceptibility of all clinically significant microorganisms isolated from blood cultures, cerebrospinal fluid, upper and lower respiratory tract, urine and wound samples in the participating microbiology laboratories. twenty eight public, 45 hospital and 6 private laboratories fro ...200516077213
dissemination of ctx-m-type extended-spectrum beta-lactamase genes to unusual hosts.a citrobacter amalonaticus and a morganella morganii producing the ctx-m-1 extended-spectrum beta-lactamase (esbl) were isolated from an area where this enzyme is now widespread in escherichia coli. this is the first report of ctx-m-1 in the former species. in both cases the esbl determinant was possibly acquired by these unusual hosts in vivo, after coinfection with e. coli strains carrying conjugative plasmids encoding ctx-m-1.200516081971
prevalence of extended-spectrum beta-lactamases in enterobacteriaceae, pseudomonas and stenotrophomonas as determined by the vitek 2 and e test systems in a kuwait teaching hospital.to determine the prevalence of extended-spectrum beta-lactamase (esbl)-producing members of the enterobacteriaceae using vitek 2 and e test systems.200516103698
antibacterial activity of zuccagnia punctata cav. ethanolic extracts.the present study was conducted to investigate antibacterial activity of zuccagnia punctata ethanolic extract against 47 strains of antibiotic-resistant gram-negative bacteria and to identify bioactive compounds. inhibition of bacterial growth was investigated using agar diffusion, agar macrodilution, broth microdilution and bioautographic methods. zuccagnia punctata extract was active against all assayed bacteria (escherichia coli, klebsiella pneumoniae, proteus mirabilis, enterobacter cloacae, ...200516137849
[surveillance of susceptibility of clinical isolates to cefmetazole between 2000 and 2003].for the post-marketing surveillance of cefmetazole (cmz, cefmetazon), mics of injectable beta-lactam antibacterials including cmz against clinical isolates from 15 medical institutions all over japan are measured yearly and the incidence rates of resistance in various species are also evaluated. in the first surveillance from june 2000 to march 2001, 574 isolates of 13 species were tested, 548 isolates of the same 13 species were tested in the second surveillance from april 2001 to march 2002, a ...200516161756
acute postoperative morganella morganii panophthalmitis. 200515332093
inhibitory effects of various micro-organisms on the growth of helicobacter pylori.to examine the in vitro influence of various bacteria species on helicobacter pylori (hp) growth.200515613007
acrab efflux pump plays a role in decreased susceptibility to tigecycline in morganella morganii.transposon mutagenesis of a clinical isolate of morganella morganii, g1492 (tigecycline mic of 4 microg/ml), yielded two insertion knockout mutants for which tigecycline mics were 0.03 microg/ml. transposon insertions mapped to acra, which is constitutively overexpressed in g1492, suggesting a role of the acrab efflux pump in decreased susceptibility to tigecycline in m. morganii.200515673770
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