| characterization of some actinomyces-like isolates from human clinical specimens: reclassification of actinomyces suis (soltys and spratling) as actinobaculum suis comb. nov. and description of actinobaculum schaalii sp. nov. | five strains of a hitherto unknown actinomyces-like bacterium were isolated from human clinical sources, including blood cultures. biochemical and chemotaxonomic characterization indicated that the strains were distinct from previously described actinomyces and arcanobacterium species. a comparative 16s rrna gene sequence analysis demonstrated that the undescribed strains constitute a new subline within the actinomyces-arcanobacterium species complex. the closest known relative of the isolates w ... | 1997 | 9226926 |
| genotypic diversity of clinical actinomyces species: phenotype, source, and disease correlation among genospecies. | we determined the frequency distribution of actinomyces spp. recovered in a routine clinical laboratory and investigated the clinical significance of accurate identification to the species level. we identified 92 clinical strains of actinomyces, including 13 strains in the related arcanobacterium-actinobaculum taxon, by 16s rrna gene sequence analysis and recorded their biotypes, sources, and disease associations. the clinical isolates clustered into 21 genogroups. twelve genogroups (74 strains) ... | 2002 | 12202591 |
| "actinobaculum massiliae," a new species causing chronic urinary tract infection. | we report on a new actinobaculum species, "actinobaculum massiliae," isolated from the urine of an elderly woman with recurrent cystitis. its phenotypic pattern was similar to those of both of the other actinobaculum species described to date. on 16s rrna sequencing, the marseille isolate shared 95% homology with actinobaculum suis, 92 to 93% homology with actinobaculum schaalii, 91 to 92% homology with arcanobacterium spp., and 87 to 90% homology with actinomyces species. a bootstrap value of 9 ... | 2002 | 12409355 |
| microscopic and ultrastructural lesions of the ureter and renal pelvis in sows with regard to actinobaculum suis infection. | tissues from ureter and renal pelvis of 18 sows naturally (n = 15) and experimentally (n = 3) infected with actinobaculum suis (former actinomyces, eubacterium suis) were studied using light and scanning as well as transmission electron microscopy. the results were compared with the findings from 11 clinically healthy sows as controls. the lesions in both the ureter and renal pelvis of naturally and experimentally infected animals were similar. in severe cases there were necrotizing ureteritis a ... | 2002 | 12440789 |
| characterization of some actinomyces-like isolates from human clinical sources: description of varibaculum cambriensis gen nov, sp nov. | fifteen strains of an anaerobic, catalase-negative, gram-positive diphtheroid-shaped bacterium recovered from human sources were characterized by phenotypic and molecular chemical and molecular genetic methods. the unidentified bacterium showed some resemblance to actinomyces species and related taxa, but biochemical testing, polyacrylamide gel electrophoresis analysis of whole-cell proteins, and amplified 16s ribosomal dna restriction analysis indicated the strains were distinct from all curren ... | 2003 | 12574260 |
| in vitro sensitivity of hungarian actinobaculum suis strains to selected antimicrobials. | in vitro antimicrobial sensitivity of 12 hungarian isolates and the type strain atcc 33144 of actinobaculum suis to different antimicrobial compounds was determined both by the agar dilution and by the disc diffusion method. by agar dilution, mic50 values in the range of 0.05-3.125 micrograms/ml were determined for penicillin, ampicillin, ceftiofur, doxycycline, tylosin, pleuromutilins, chloramphenicol, florfenicol, enrofloxacin and lincomycin. the mic50 value of oxytetracycline and spectinomyci ... | 2003 | 12688126 |
| actinobaculum urinale sp. nov., from human urine. | a hitherto undescribed actinomyces-like bacterium was isolated from human urine. based on its biochemical characteristics, the unidentified bacterium did not correspond to any currently described actinomyces species or related taxa. comparative 16s rrna gene sequencing showed that the unknown bacterium exhibits a specific phylogenetic association with the genus actinobaculum, but a sequence divergence of > 5% from the two currently recognized members of this genus, actinobaculum schaalii and act ... | 2003 | 12807186 |
| pyelonephritis caused by actinobaculum schaalii in a child with pyeloureteral junction obstruction. | reported here is the case of a 5-year old boy with a pyeloureteral junction (puj) obstruction and pyelonephritis caused by actinobaculum schaalii, an actinomyces-like organism. pyelonephritis or any other urinary tract infection caused by actinobaculum schaalii has not been described in children before. the patient responded well to pyeloplasty in combination with antibiotic treatment. | 2003 | 12811591 |
| actinobaculum massiliae: a new cause of superficial skin infection. | actinomycete-like organisms are well recognised members of normal mucosal flora but some strains are thought to contribute to commensal skin flora too. from here they may become pathogenic. the actinomyces family has undergone significant taxonomic revision in recent years. a new species, actinobaculum massiliae, closely related to actinomyces spp., was first discovered in 2002. this case describes only the second human infection and the first reported skin infection due to this organism, whose ... | 2004 | 15001307 |
| [the prevalence of actinobaculum suis in boars of breeding herds in the omsk region (russian federation) by indirect immunofluorescence technique]. | actinobaculum suis (corynebacterium suis, eubacterium suis, actinomyces suis) was detected in the preputial diverticulum of 64,8% of 162 boars investigated in 8 districts of the region omsk (russian federation) by indirect immunofluorescent technique. until yet no informations were available about the prevalence of actinobaculum (a.) suis in swine herds of the russian federation. the study shows that a. suis, as a main aetiological factor of cystitis and pyelonephritis in sows, is widely spread ... | 2004 | 15032264 |
| systematic 16s rrna gene sequencing of atypical clinical isolates identified 27 new bacterial species associated with humans. | clinical microorganisms isolated during a 5-year study in our hospital that could not be identified by conventional criteria were studied by 16s rrna gene sequence analysis. each isolate yielded a > or =1,400-bp sequence containing <5 ambiguities which was compared with the genbank 16s rrna gene library; 1,404 such isolates were tested, and 120 were considered unique (27 isolates) or rare (< or =10 cases reported in the literature) human pathogens. eleven new species, "actinobaculum massiliae," ... | 2004 | 15131188 |
| isolation of actinobaculum schaalii and actinobaculum urinale from a patient with chronic renal failure. | we report on the isolation of two species of actinobaculum from blood culture of a patient with chronic renal failure. the two isolates were distinct with regard to their morphological and biochemical characteristics. subsequent 16s rrna gene sequencing classified the two species as actinobaculum schaalii and a. urinale. | 2005 | 16000509 |
| ten cases of actinobaculum schaalii infection: clinical relevance, bacterial identification, and antibiotic susceptibility. | nine of 10 strains of actinobaculum schaalii caused urinary tract infections in predisposed individuals. identification included 16s rrna gene sequence analysis and use of the api coryne and rapid id 32 a test systems. a. schaalii is easily overlooked due to its slow growth in ambient air and its resemblance to the normal bacterial flora on skin and mucosa. | 2005 | 16208004 |
| urosepsis with actinobaculum schaalii and aerococcus urinae. | actinobaculum was isolated from urine only after prolonged incubation in 5% co(2) after discrepancy between urine gram stain and initial culture results was observed. additional patients were diagnosed using this method. the prevalence of actinobaculum species in urinary tract infections is underestimated since it is not isolated by routine urine culture procedures. | 2006 | 16455938 |
| septicaemia due to actinobaculum schalii. | we report a case of septicaemia caused by actinobaculum schalii, an actinomyces-like bacterium, a gram-positive, non-sporulating rod. the search for the bacterium is relevant in cases with unexplained pyuri and septicaemia, because it may cause severe infection in predisposed humans. the bacterium is susceptible to a wide range of antibiotics. | 2006 | 16857631 |
| vertebral osteomyelitis caused by actinobaculum schaalii: a difficult-to-diagnose and potentially invasive uropathogen. | we report the first case of vertebral osteomyelitis caused by actinobaculum schaalii and review all cases of a. schaalii identified at our institution between 2002 and 2005. a. schaalii causes urinary tract infections - especially in elderly people - occasionally with septic complications. | 2007 | 17618471 |
| actinomyces--gathering evidence of human colonization and infection. | the roles of the 'classical'actinomyces spp. as colonizers of oral cavities of man and animals, in development of intra-oral infections and as agents of actinomycosis have been well documented. this mini-review focuses on perceptions of human colonization and infection that have emerged in the past decade, largely as a result of advances in classification, identification and direct detection from clinical material. arguably, of the greatest importance is the recognition of actinomycosis as a maj ... | 2008 | 18222714 |
| evaluation of pyelonephritis in culled indoor and outdoor high parity sows. | the present trial was conducted in hungary in neighboring large indoor and outdoor pig production units, belonging to the same breeding company. rejected kidneys from 201 (out of 241; 83.4%) outdoor, and 191 (out of 512, 37.3%) indoor high parity sows, with previous history of recidiving postparturient fever and excessive postparturient vulvovaginal discharge were gross pathologically bacteriologically, and histologically evaluated. all rejected kidneys revealed chronic pyelonephritis. in outdoo ... | 2008 | 18265757 |
| [actinobaculum schaali bacteremia in an aged male patient]. | | 2008 | 18976874 |
| actinomyces hominis sp. nov., isolated from a wound swab. | a coryneform bacterium (strain 1094(t)) was isolated from a wound swab taken from an 89-year-old female patient. chemotaxonomic investigations suggested that this bacterium was related to the genera actinomyces, arcanobacterium and actinobaculum. phylogenetic analysis of 16s rrna gene sequences showed that strain 1094(t) was most closely related to actinomyces europaeus ccug 32789 a(t) (94.3 % similarity). phenotypically, the isolate could be separated from its closest phylogenetic neighbours on ... | 2010 | 19734287 |
| actinobaculum schaalii: a common cause of urinary tract infection in the elderly population. bacteriological and clinical characteristics. | to-date only 21 clinical cases of actinobaculum schaalii infection have been published, and a. schaalii has been considered a rare cause of urinary tract infection (uti) and urosepsis. between y 2005 and 2008, we isolated a. schaalii from 55 predisposed elderly patients. in these cases, microscopic findings of coccoid rods in wet smears of urine gave rise to clinical suspicion and subsequently to its isolation from urine. typically only scant growth of a. schaalii occurred after incubation of th ... | 2010 | 19883165 |
| actinobaculum schaalii, a common uropathogen in elderly patients, denmark. | actinobaculum schaalii can cause urinary tract infections and septicemia but is difficult to identify by cultivation. to obtain a fast diagnosis and identify a. schaalii, we developed a taqman real-time quantitative pcr. routine urine samples were obtained from 177 hospitalized patients and 75 outpatients in viborg county, denmark, in 2008-2009. the pcr detected a. schaalii in 22% of samples from patients >60 years of age. this assay showed that a. schaalii is more common than implied by routine ... | 2010 | 20031046 |
| first report of actinobaculum schaalii urinary tract infection in north america. | a recurrent urinary tract infection with actinobaculum schaalii, a fastidious, facultative anaerobic, and emerging pathogen, is described. diagnosis was delayed when routine urine cultures were initially performed yielding recurrently negative results. resolution of symptoms occurred after anaerobic cultures were done to allow organism isolation, identification, and appropriate antimicrobial treatment. | 2010 | 20542207 |
| endocarditis caused by actinobaculum schaalii, austria. | | 2010 | 20587200 |
| actinobaculum schaalii: clinical observation of 20 cases. | clin microbiol infect abstract: actinobaculum schaalii is a new species that has so far been isolated from human blood, urine and pus. its importance has probably been underestimated and other actinobaculum spp. may also have been underdiagnosed. this retrospective study comprises all known cases of a. schaalii infections identified since 2004 in the canton of neuchâtel (170 000 inhabitants), switzerland. strains were cultivated and isolated in the bacteriology laboratory using its routine proce ... | 2010 | 20854424 |
| in vitro susceptibility of actinobaculum schaalii to 12 antimicrobial agents and molecular analysis of fluoroquinolone resistance. | to assess the in vitro susceptibility of actinobaculum schaalii to 12 antimicrobial agents as well as to dissect the genetic basis of fluoroquinolone resistance. | 2010 | 20952417 |
| [urinary tract infection caused by actinobaculum schaalii in an elderly patient]. | | 2011 | 21412672 |
| actinobaculum schaalii causing fournier's gangrene. | actinobaculum schaalii, which belongs to the group of gram-positive rods, is difficult to culture. using molecular genetics, actinobaculum schaalii could be identified as a causing microorganism in a case of fournier's gangrene. | 2011 | 21508151 |
| actinobaculum schaalii in urological patients, screened with real-time polymerase chain reaction. | abstract objective. actinobaculum schaalii can cause urinary tract infections (utis) and occasionally septic complications. it is a carbon dioxide-requiring gram-positive rod which is overlooked if urine is cultured in ambient air or if there is growth of conventional species. this study aimed to find the frequency of a. schaalii in consecutive cohorts of patients with kidney stones, children with suspected uti and patients with indwelling catheters. material and methods. a quantitative real-tim ... | 2011 | 21767246 |
| in vitro susceptibility of actinobaculum schaalii to mecillinam. | | 2011 | 21712238 |
| profiling of dental plaque microflora on root caries lesions and the protein-denaturing activity of these bacteria. | to profile plaque microflora on root-caries lesions, and to examine the protein-denaturing activity as a pilot study. | 2011 | 22165457 |
| actinobaculum schaalii: review of an emerging uropathogen. | actinobaculum schaalii is a facultative anaerobic, gram-positive rod-shaped species phylogenetically related to actinomyces that is likely part of the commensal flora of the human genitourinary tract. because of its fastidious growth under aerobic conditions and its resemblance to bacteria of the resident flora, a. schaalii is frequently overlooked or considered as a contaminant. it is also difficult to identify phenotypically, still requiring molecular identification. note that the recent techn ... | 2011 | 22209960 |
| actinobaculum schaalii - invasive pathogen or innocent bystander? a retrospective observational study. | abstract: | 2011 | 22029906 |
| actinobaculum bacteremia: a report of 12 cases. | actinobaculum species are anaerobic gram-positive rods that have previously been associated with urinary tract infection (uti) in the elderly. we report 12 patients with actinobaculum bacteremia. only 40% of blood cultures were clinically considered significant by the treating physicians, but most patients were treated for uti, suggesting a possible urinary source of bacteremia. clinicians should be aware of the pathogenic potential of actinobaculum spp. | 2011 | 21976754 |
| actinobaculum schaalii, a cause of urinary tract infections in children? | aim: to inform that actinobaculum schaalii can colonize the urine and cause urinary tract infection in children. methods: urine samples were examined by wet smear microscopy, incubated in 5% co(2) for 1-2 days, and species-specific real-time polymerase chain reaction (pcr) for a. schaalii was performed. results: in 5 of the 29 screened urines, a. schaalii was found only by real-time pcr in quantities equivalent to ≥10(4) -10(5) cfu/ml. in addition, a. schaalii was found in quantities equiva ... | 2011 | 22211919 |