Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| [community- and hospital-acquired bacteremia: a retrospective study in a regional hospital. iii. microbiological aspects]. | a retrospective study was made of all blood cultures performed over a 40-month period at the ivrea-castellamonte hospital (turin, italy). a total of 4386 vials from 619 patients were examined. there were 619 positive vials (14.1%) from 131 patients (21.2%) corresponding to 145 bacteremia episodes, including 129 monomicrobial (89%) and 16 polymicrobial (11%). ten patients (1.6%) had more than one episode. there were 73 polluted vials (1.7%). a total of 165 microorganism were isolated: gram-positi ... | 1990 | 2133330 |
| atpase-dependent energy spilling by the ruminal bacterium, streptococcus bovis. | when the ruminal bacterium streptococcus bovis was grown in batch culture with glucose as the energy source, the doubling time was approximately 21 min and the rate of bacterial heat production was proportional to the optical density (1.72 microw/micrograms protein). if exponentially growing cultures were treated with chloramphenicol, there was a decline in heat production, but the rate was greater than 0.30 microw/micrograms protein even after growth ceased. since there was no heat production a ... | 1990 | 2140038 |
| formation of a clear zone on tannin-treated brain heart infusion agar by a streptococcus sp. isolated from feces of koalas. | gram-positive cocci, isolated from the feces of koalas and identified as streptococcus bovis biotype i, formed a distinct clear zone on tannin-treated brain heart infusion agar, suggesting that this isolate has the unique characteristic of degrading the tannin-protein complex. | 1990 | 2180375 |
| in vitro activity and beta-lactamase stability of the new oral cephalosporin bay v 3522. | the activity of the new oral cephalosporin bay v 3522 was compared to that of six other beta-lactam agents. bay v 3522 inhibited methicillin-susceptible staphylococcus aureus and staphylococcus epidermidis at less than or equal to 2 micrograms/ml, compared to mics of greater than or equal to 8 micrograms/ml for the other cephalosporins tested. it was more active against streptococcus pyogenes (mic less than or equal to 0.06 microgram/ml) than cefuroxime, cefixime, cephalexin and cefaclor. groups ... | 1990 | 2226499 |
| effect of ionophores and ph on growth of streptococcus bovis in batch and continuous culture. | batch cultures (ph 6.7) of streptococcus bovis jb1 were severely inhibited by 1.25 and 5 microm lasalocid and monensin, respectively, even though large amounts of glucose remained in the medium. however, continuous cultures tolerated as much as 10 and 20 microm, respectively, and used virtually all of the glucose. although continuous cultures grew with high concentrations of ionophore, the yield of bacterial protein decreased approximately 10-fold. when ph was decreased from 6.7 to 5.7, the pote ... | 1990 | 2383003 |
| in vivo dental plaque-forming ability and cariogenicity of the bacterium streptococcus bovis in gnotobiotic rats. | germ-free fisher rats, fed on a high sucrose diet, were monoinfected with streptococcus bovis strains. high levels of fissure caries were formed by three strains; one strain produced moderate levels; another produced only very low levels. no strain could produce approximal or buccal/lingual lesions. all strains could colonize the fissures of teeth in the lower jaw, as shown by scanning electron microscopy. the most cariogenic strains were associated with caries scores similar to those of strep. ... | 1990 | 2344292 |
| the survival of streptococci and enterococci in animal feed and on straw with particular reference to streptococcus uberis. | the survival of streptococcus uberis, strep. bovis, enterococcus faecalis spp. faecalis and ent. faecium in animal feed and on wheat straw was studied for one month. streptococcus bovis survived the best in feed and strep. uberis the worst while on straw ent. faecium was the most resilient species and there was little to choose between the other three. the recovery of all species, excepting strep. bovis, on selective and non-selective agar was comparable. the growth of strep. bovis, on the other ... | 1990 | 2351619 |
| [infected false aneurysm at the level of an aortotomy cicatrix 5 years after mechanical replacement of the aortic valve]. | the authors report the case of streptococcus bovis infection of a pseudoaneurysm which developed in the aortotomy suture line five years after aortic valve replacement with a bjork-shiley prosthesis. this was an isolated lesion without involvement of the prosthesis or aortic ring and was an operative finding. | 1990 | 2106296 |
| [fever, somnolence, vomiting, diarrhea]. | a 69-year-old female was admitted because of a febrile state, somnolence, nausea and diarrhea. addison's disease known to have developed several years earlier after adrenal tuberculosis suggested addisonian crisis triggered by an acute infection. therapy with steroids and substitution of electrolytes and fluid led to rapid improvement. streptococcus bovis was identified as causative agent. the known association of this germ with cancer of the colon led to further investigation which revealed can ... | 1990 | 2124719 |
| factors influencing the adherence of strains of streptococcus bovis and escherichia coli isolated from ruminal epithelium. | two strains of streptococcus bovis (a1 and a5) and one strain of escherichia coli (0141:h28) isolated from the surface of bovine ruminal mucous epithelium were examined for adherence to isolated and cultured ruminal epithelial cells. the e. coli adhered to the target cell by means of fimbriae, which had several common properties with type 1 common fimbriae and caused mannose-sensitive haemagglutination. the a1 strain of s. bovis was devoid of fimbriae and its adherence to the epithelial surface ... | 1990 | 1974372 |
| peptide and amino acid transport in streptococcus bovis. | in amino acid transport studies with streptococcus bovis using 14c-labelled amino acids, it has been shown that between 87% and 95% of cell-associated radioactivity was located in the cytosol. in similar studies with unlabelled peptides, most test peptide associated with s. bovis was truly intracellular. using sodium dodecyl sulphate-polyacrylamide gel electrophoresis, the proteolytic activity in s. bovis was found to be largely cell-associated and of the serine-protease type, but stimulated by ... | 1990 | 1366976 |
| streptococcus bovis brain abscess associated with an occult colonic villous adenoma. | streptococcus bovis is now recognized as a common cause of bacterial endocarditis. however, infection of the central nervous system by this organism is very rare. recent studies have demonstrated the association between streptococcus bovis infections and colonic neoplasms. | 1990 | 2404406 |
| characteristics of streptococcus bovis associated with pigeons. | streptococcus bovis strains isolated from different lesions in pigeons were found to differ from most s. bovis associated with mammals. s.bovis was only infrequently found in the gut and faeces of pigeons without streptococcal disease. the bacterium was also isolated from the crop and the pharynx of a minority of healthy pigeons. | 1990 | 18679954 |
| streptococcus bovis infections in pigeons. | streptococcus bovis infection was diagnosed in pigeons from 20 lofts submitted for post mortem investigation. clinical signs were very variable and ranged from hyperacute death to chronic lameness with arthritis. lesions were generally unspecific except for single cases of muscle necrosis with purulent myositis. histological examinations demonstrated the septicaemic nature of the infections. intravenous inoculations of s. bovis resulted in prostration, long lasting loss of weight and polyuria. m ... | 1990 | 18679955 |
| digestion of barley, maize, and wheat by selected species of ruminal bacteria. | differences in the digestion of barley, maize, and wheat by three major ruminal starch-digesting bacterial species, streptococcus bovis 26, ruminobacter amylophilus 50, and butyrivibrio fibrisolvens a38, were characterized. the rate of starch digestion in all cereal species was greater for s. bovis 26 than for r. amylophilus 50 or b. fibrisolvens a38. starch digestion by s. bovis 26 was greater in wheat than in barley or maize, whereas starch digestion by r. amylophilus 50 was greater in barley ... | 1990 | 16348322 |
| selective medium for enumeration of tannin-protein complex-degrading streptococcus spp. in feces of koalas. | a selective agar plate medium (tannin-treated brain heart infusion agar supplemented with colistin-oxolinic acid) was developed to enumerate tannin-protein complex-degrading streptococcus bovis in the feces of koalas. this medium was successfully used to enumerate strains from fecal samples but failed to enumerate those from pure cultures. | 1990 | 16348364 |
| streptococcus bovis bacteremia and endocarditis at groote schuur hospital. | 1989 | 2727863 | |
| more monensin-sensitive, ammonia-producing bacteria from the rumen. | two monensin-sensitive bacteria which utilized carbohydrates poorly and grew rapidly on amino acids were isolated from the bovine rumen. the short rods (strain sr) fermented arginine, serine, lysine, glutamine, and threonine rapidly (greater than 158 nmol/mg of protein per h) and grew faster on casein digest containing short peptides than on free amino acids ().34 versus 0.29 h(-1)). gelatin hydrolysate, an amino acid source containing an abundance of long peptides, was unable to support growth ... | 1989 | 2757371 |
| bacteremia with streptococcus bovis and streptococcus salivarius: clinical correlates of more accurate identification of isolates. | two biotypes of streptococcus bovis can be identified by laboratory testing and can be distinguished from the phenotypically similar organism streptococcus salivarius. we assessed the clinical relevance of careful identification of these organisms in 68 patients with streptococcal bacteremia caused by these similar species. s. bovis was more likely to be clinically significant when isolated from blood (89%) than was s. salivarius (23%). there was a striking association between s. bovis i bactere ... | 1989 | 2915024 |
| streptococcus bovis endocarditis and carcinoma of the colon. | 1989 | 2924063 | |
| carcinoma of the colon presenting as streptococcus equinus bacteremia. | 1989 | 2910086 | |
| non-proton-motive-force-dependent sodium efflux from the ruminal bacterium streptococcus bovis: bound versus free pools. | growing cells of streptococcus bovis jb1 had a sodium content of 1,125 nmol/mg of protein and, based on a ratio of cell volume to protein of 4.3 microliters/mg, the apparent intracellular sodium concentration was more than 240 mm. much of this sodium could not be removed by water washing even if cells were boiled or treated with the pore-forming ionophore, gramicidin, but it could be exchanged for potassium. stationary cultures had a 2.6-microliters volume per milligram of protein and a total so ... | 1989 | 2481426 |
| studies on faecal streptococci in the river tigris. | six hundred water samples collected from the river tigris at mosul city were investigated for faecal streptococci. human faecal streptococci were predominant, and animal faecal streptococci were also detected. eight species and varieties were identified, viz streptococcus faecalis, atypical streptococcus faecalis, streptococcus bovis, streptococcus equinus, streptococcus faecalis var. liquefaciens, streptococcus faecalis var. zymogenes, streptococcus durans and streptococcus faecium. the inciden ... | 1989 | 2739584 |
| streptococcus bovis septicemia and large bowel neoplasia. | streptococcus bovis septicemia is a relatively uncommon entity that is associated with an increased incidence of colonic neoplasms. three of four patients with s. bovis endocarditis subsequent to septicemia underwent colonoscopy. the fourth patient underwent a barium enema and a proctoscopic examination. polyps were found in three patients, and adenocarcinoma of the colon in one. patients with s. bovis endocarditis should be considered at high risk for colonic neoplasms. screening colonoscopy is ... | 1989 | 2650506 |
| [streptococcus bovis septicemia and colonic cancer]. | the authors report the case of a patient who developed a streptococcus bovis septicemia in the post-operative course of a surgical cure of an incarcerated umbilical hernia. there were no other complaints. a barium enema showed a malignant tumor of the descending colon. there were hepatic metastases. no complementary treatment was undertaken. the patient died shortly after. in the literature colonic proliferative lesions in association with this germ is reported in a total of 36% of proliferative ... | 1989 | 2497613 |
| isolation and characterization of two rumen streptococcus bovis bacteriophages. | a method for the isolation of streptococcus bovis bacteriophages from ruminal fluid of calves is described. thirty to 2 x 10(3) phages per ml infecting streptococcus bovis strains 4/1 and 47/3 were isolated directly from ruminal fluid. two bacteriophages were characterized on the basis of plaque morphology, host ranges, electron microscopic morphology and dna restriction endonuclease digestion patterns. the f1 and f3 phages formed clear plaques of different sizes. the plaque size of the f1 phage ... | 1989 | 2586334 |
| evaluation of the rapid strep system for identification of gram-positive, catalase-negative cocci isolated from bovine intramammary infections. | the rapid strep system (analytab products, plainview, ny) was used to identify 199 gram-positive, catalase-negative cocci isolated from bovine intramammary infections. the system accurately identified 88.4% of isolates. the system identified 100% of 46 streptococcus agalactiae, 100% of 48 streptococcus dysgalactiae, 54.5% of 11 streptococcus equinus, and 96.2% of 53 streptococcus uberis isolates. enterococcus spp. were identified correctly 83.3% of the time. one of 4 streptococcus saccharolyticu ... | 1989 | 2689485 |
| aerococcus-like organism--an unnoticed urinary tract pathogen. | aerococci are only occasionally isolated from urinary tract specimens. a 4-month' survey revealed 29 patients suspected of urinary tract infection (uti), from whom an aerococcus-like organism (alo) was isolated in significant numbers from urinary tract specimens and singly in 11 cases. approximately 0.8% of all urinary tract specimens examined during the period yielded growth of alo. the median age of patients was 75 years. half of the patients were found to have conditions predisposing to uti. ... | 1989 | 2736106 |
| evaluation of teicoplanin for treatment of endocarditis caused by gram-positive cocci in 20 patients. | teicoplanin, a new glycopeptide antibiotic similar to vancomycin, was evaluated for the treatment of bacterial endocarditis in an open multicenter study from may 1985 to august 1987. a total of 20 patients with positive blood culture endocarditis received teicoplanin once daily as a mean intravenous injection of 7.3 mg/kg of body weight (range, 4.8 to 10.6 mg/kg); in 17 patients, teicoplanin was combined with another antibiotic, usually an aminoglycoside. the mean duration of therapy was 28 days ... | 1989 | 2527483 |
| [a case report of streptococcus bovis meningitis associated with asymptomatic rectal carcinoma]. | 1989 | 2543721 | |
| dna probe for identification of streptococcus pneumoniae. | a total of 287 clinical isolates of streptococcus pneumoniae (pneumococcus) were tested for their ability to undergo autolysis when treated with sodium deoxycholate. the test was positive for all but one isolate, strain doc-1. this autolysis required the activity of an enzyme which is unique and characteristic of s. pneumoniae: a choline-dependent n-acetylmuramoyl-l-alanine amidase, the gene product of the lyta gene. we used lyta as a dna probe to test the distribution of the autolysin gene amon ... | 1989 | 2563386 |
| rapid identification of streptococcus bovis by using combination constitutive enzyme substrate hydrolyses. | several studies have documented the association of blood and rectal-culture positivity for streptococcus bovis with gastrointestinal neoplasia, especially colonic carcinoma. conventional methods using bile-esculin hydrolysis, salt tolerance, and sugar fermentations to differentiate s. bovis from other streptococci are laborious, slow, and relatively expensive. commercially available systems are costly and require at least 24 to 48 h of incubation. a rapid identification procedure for s. bovis an ... | 1989 | 2570081 |
| the faecal flora of the giant panda (ailuropoda melanoleuca). | the faecal floras of two adult (male and female) and one infant (male) giant panda kept at the ueno zoo, tokyo, japan were examined and shown to be quite different from those of other animals. the predominant bacteria in the adults were streptococcus (including enterococcus) and enterobacteriaceae, while obligate anaerobes had minor populations. fastidious anaerobes were not detected. the predominant bacteria in the suckling infant were lactobacillus and streptococcus, followed by bifidobacteriu ... | 1989 | 2584169 |
| electrophoretic analysis of ureases in streptococcus salivarius and in saliva. | experimental conditions were established for the extraction, electrophoresis and detection of urease isoenzymes from streptococcus salivarius. thiol concentrations were critical and ureases from different strains varied in ease of dissociation. a characteristic pattern was obtained for 30 ureolytic s. salivarius strains isolated from; saliva (6), dental plaque (12), artificial dental plaque (6) and non-oral sources (6), and also for a ureolytic streptococcus bovis from artificial plaque. one non ... | 1989 | 2640315 |
| lasalocid-catalyzed proton conductance in streptococcus bovis as affected by extracellular potassium. | the effect of extracellular potassium on lasalocid-catalyzed proton conductance in streptococcus bovis 24 was measured by using the fluorescent probe 9-aminoacridine. increasing external potassium concentration resulted in decreased proton flux into s. bovis cells exposed to the ionophore. these results suggest that lasalocid catalyzes k+/h+ exchange diffusion in s. bovis cells. | 1989 | 2705771 |
| transport of glutamine by streptococcus bovis and conversion of glutamine to pyroglutamic acid and ammonia. | streptococcus bovis jb1 cells energized with glucose transported glutamine at a rate of 7 nmol/mg of protein per min at a ph of 5.0 to 7.5; sodium had little effect on the transport rate. because valinomycin-treated cells loaded with k and diluted into na (ph 6.5) to create an artificial delta psi took up little glutamine, it appeared that transport was driven by phosphate-bond energy rather than proton motive force. the kinetics of glutamine transport by glucose-energized cells were biphasic, a ... | 1989 | 2722740 |
| [infectious endocarditis due to streptococcus bovis with suspected relationship with colon cancer]. | 1989 | 2794665 | |
| nisin inhibits several gram-positive, mastitis-causing pathogens. | organisms known to cause bovine mastitis, enterococcus faecalis ssp. liquefaciens atcc 27959, staphylococcus aureus atcc 29740, streptococcus agalactiae atcc 27956, streptococcus equinus atcc 27960, streptococcus dysgalactiae atcc 27957, streptococcus uberis atcc 27958, and the neotype staphylococcus epidermidis atcc 14990 were examined for their susceptibility to the small peptide antibiotic, nisin. using a disc assay, minimum inhibitory concentrations of nisin ranged from 10 to 250 micrograms/ ... | 1989 | 2516858 |
| diagnosing endocarditis with the cloned 112 kda antigen of enterococcus faecalis. | a new indirect elisa is presented for the diagnosis of enterococcal endocarditis. it is based on the cloning of enterococcus faecalis dna into lambda gt11. the library was screened by antisera from three cases of e. faecalis endocarditis. three positive clones were found, all of which cross-reacted with the 112 kda antigen of e. faecalis. one of these was taken and lysogenised into e. coli y1089 to produce a fusion protein of 125 kda. this iptg dependent protein was purified by affinity chromato ... | 1989 | 2509565 |
| fermentation of peptides and amino acids by a monensin-sensitive ruminal peptostreptococcus. | a monensin-sensitive ruminal peptostreptococcus was able to grow rapidly (growth rate of 0.5/h) on an enzymatic hydrolysate of casein, but less than 23% of the amino acid nitrogen was ever utilized. when an acid hydrolysate was substituted for the enzymatic digest, more than 31% of the nitrogen was converted to ammonia and cell protein. coculture experiments and synergisms with peptide-degrading strains of bacteroides ruminicola and streptococcus bovis indicated that the peptostreptococcus was u ... | 1988 | 2975156 |
| partial characterisation of the inhibitory substances produced by streptococcus oralis and related species. | the production of inhibitory substances was sought by deferred antagonism. streptococcus oralis, streptococcus mitis and streptococcus sanguis produced bactericidal concentrations of hydrogen peroxide, but no detectable bacteriocin. actinomycetes and neisseria pharyngis were particularly susceptible to the lethal action of hydrogen peroxide. streptococcus milleri produced bactericidal concentrations of hydrogen peroxide and bacteriocin-like substances. s. oralis strains were inhibited by the bac ... | 1988 | 3216798 |
| effects of the ionophores monensin and tetronasin on simulated development of ruminal lactic acidosis in vitro. | a continuous coculture of four ruminal bacteria, megasphaera elsdenii, selenomonas ruminantium, streptococcus bovis, and lactobacillus sp. strain lb17, was used to study the effects of the ionophores monensin and tetronasin on the changes in ruminal microbial ecology that occur during the onset of lactic acidosis. in control incubations, the system simulated the development of lactic acidosis in vivo, with an initial overgrowth of s. bovis when an excess of glucose was added to the fermentor. la ... | 1988 | 3223764 |
| endocarditis due to streptococcus bovis--a case report. | 1988 | 3249974 | |
| sodium-dependent transport of neutral amino acids by whole cells and membrane vesicles of streptococcus bovis, a ruminal bacterium. | streptococcus bovis jb1 cells were able to transport serine, threonine, or alanine, but only when they were incubated in sodium buffers. if glucose-energized cells were washed in potassium phosphate and suspended in potassium phosphate buffer, there was no detectable uptake. cells deenergized with 2-deoxyglucose and incubated in sodium phosphate buffer were still able to transport serine, and this result indicated that the chemical sodium gradient was capable of driving transport. however, when ... | 1988 | 3136141 |
| streptococcus bovis endocarditis associated with villous adenoma following colonoscopy. | 1988 | 3177185 | |
| esterase activities in butyrivibrio fibrisolvens strains. | thirty strains of butyrivibrio fibrisolvens isolated in diverse geographical locations were examined for esterase activity by using naphthyl esters of acetate, butyrate, caprylate, laurate, and palmitate. all strains possessed some esterase activity, and high levels of activity were observed with strains 49, h17c, s2, actf2, and lm8/1b. esterase activity also was detected in other ruminal bacteria (bacteroides ruminicola, selenomonas ruminantium, ruminobacter amylophilus, and streptococcus bovis ... | 1988 | 3178205 |
| [streptococcus bovis bacteremia and colonic diseases]. | four febrile patients were found to have a bacteraemia or endocarditis caused by streptococcus bovis. although there were no gastrointestinal symptoms, polyps in the colon, of a high degree of malignancy, were discovered in three. in the fourth, carcinoma of the colon, requiring resection, was found seven years after streptococcus bovis endocarditis. the polyps were removed by endoscopy and the streptococcus bovis infection in all cases cured by penicillin. all four patients had accompanying res ... | 1988 | 3371220 |
| two-stage reimplantation in infected total knee arthroplasty. | twenty-one infected total knee arthroplasties (tka) in 21 patients were treated from september 1980 through october 1987. of these, 15 were followed for more than one year. treatment of these patients consisted of thorough debridement of all infected tissue and components; a cement spacer was used in ten patients. the cement was impregnated with antibiotics. this procedure was followed for an average of 4.2 weeks with intravenous antibiotics and tka utilizing antibiotic-impregnated cement. five ... | 1988 | 3180576 |
| susceptibilities of streptococcal strains associated with infective endocarditis to nine antibiotics. | the susceptibilities of 121 streptococcal strains isolated from patients with infective endocarditis to mezlocillin, piperacillin, ceftizoxime, ceftriaxone, ceftazidime, imipenem, ciprofloxacin, ofloxacin and pefloxacin were determined by the agar dilution technique. viridans streptococci, streptococcus bovis and enterococcus faecalis were susceptible to imipenem, mezlocillin and piperacillin. all the strains, except e. faecalis were sensitive to ceftriaxone, ceftizoxime and ceftazidime and resi ... | 1988 | 3391051 |
| streptococcus bovis bacteremia and digestive system neoplasms. | 1988 | 3194717 | |
| colonic villous adenoma, polyp, and leiomyoma presenting with streptococcus bovis endocarditis. | 1988 | 3336976 | |
| amylolytic activity of selected species of ruminal bacteria. | a variety of species of ruminal bacteria were screened for the ability to grow in starch-containing medium and produce amylase. of those tested, the highest levels of amylase were produced by streptococcus bovis jb1 and ruminobacter amylophilus h18. other strains that grew well on starch and produced amylase included butyrivibrio fibrisolvens a38 and 49 and bacteroides ruminicola 23 and b14. varying the carbohydrate source provided for growth resulted in changes in the growth rate and level of a ... | 1988 | 2454075 |
| preservation of capsular material of streptococcal cells by specific lectins determined by immunoelectron microscopy. | we describe the use of lectins as specific stabilizing agents for the polysaccharide capsular components of two gram-positive bacteria, streptococcus agalactiae and streptococcus bovis. treatment of bacterial suspensions with wheatgerm agglutinin and concanavalin a allowed better morphological preservation as well as immunoelectron microscopic localization of a capsular component (lipoteichoic acid) by employing specific antibodies and the protein a-gold technique. data obtained indicate that le ... | 1988 | 3071525 |
| [endocarditis or bacteremia caused by streptococcus bovis and colorectal neoplasms]. | streptococcus bovis is a relatively frequent causative agent of endocarditis or bacteriaemia, particularly in the elderly. in the past s. bovis has often been incompletely or even falsely classified. for therapeutic and prognostic reasons it is important to classify this agent exactly with biochemical methods even in the routine laboratory. endocarditis or bacteriaemia due to s. bovis are often seen in conjunction with malignant, potentially malignant or benign colorectal neoplasias. after endoc ... | 1988 | 3045953 |
| the bacteria responsible for ureolysis in artificial dental plaque. | the origin of ureolytic activity in artificial-mouth plaques was established by assessing the contribution to plaque ureolytic activity of the isolated bacteria. to overcome losses of ureolytic activity caused by the unstable presence of urease in oral bacteria, ureolytic bacteria were isolated from an exceptionally active plaque (1 mumol nh3/min per mg protein) in which 63 per cent of the flora was ureolytic. after their ability to metabolize urea was stabilized, 13 ureolytic bacteria remained: ... | 1988 | 3075450 |
| differentiation of ruminal bacterial species by enzyme-linked immunosorbent assay using egg yolk antibodies from immunized chicken hens. | cross-reactivity among four species of ruminal bacteria was examined by using egg yolk antibodies from immunized leghorn laying hens and an enzyme-linked-immunosorbent assay. the effects of the four species on the hens were compared on various days postimmunization. hens injected with the same bacterial species had similar apparent antibody levels over the entire postimmunization period, but only bacteroides ruminicola b1(4) and selenomonas ruminantium d antigens elicited early increases in appa ... | 1988 | 3355145 |
| factors affecting the rate of breakdown of bacterial protein in rumen fluid. | 1. the cellular proteins of butyrivibrio fibrisolvens, lactobacillus casei, megasphaera elsdenii, selenomonas ruminantium and streptococcus bovis were labelled by growth in the presence of l-[14c]leucine, and the breakdown of labelled protein was measured in incubations of these bacteria with rumen fluid to which unlabelled 5 mm-l-leucine was added. the rate of protein breakdown was estimated from the rate of release of radioactivity into acid-soluble material. 2. protein breakdown occurred at d ... | 1987 | 3118940 |
| role of immunoblotting in the diagnosis of culture negative and enterococcal endocarditis. | serum samples from patients with endocarditis and septicaemia due to enterococcus faecalis, enterococcus faecium, streptococcus bovis, and streptococcus sanguis were immunoblotted against antigenic extracts from all four species. in e faecalis endocarditis there was a strong igm response to e faecalis antigenic bands of 112, 88-90, and 45-47 kd and a strong igg response to 88-90 and 45-47 kd bands. in e faecium endocarditis there was a pronounced igg response to an e faecium band of 82-90 kd. fo ... | 1987 | 3119674 |
| [use of the colonizing preparation amylastin in the stimulation of rumen-type digestion in young ruminants]. | in experiments with calves during the milk-nutrition period we tested the use of the colonisation preparation amylastim, containing a bacterial strain of streptococcus bovis ao 24/85, as a factor speeding up the development of the rumen microflora. we gave the preparation to the animals for a period of four weeks and studied its influence on the microflora adherent to the epithelium of the rumen wall. we ascertained a significant increase in the number of streptococcus bovis germs (p less than 0 ... | 1987 | 3127979 |
| in vitro activity of ly146032 (daptomycin) against selected aerobic bacteria. | the in vitro activity of the new lipopeptide antibiotic ly146032 was generally four-fold greater (mic 90 less than or equal to 0.5 microgram/ml) than that of vancomycin against methicillin-susceptible or methicillin-resistant staphylococcus aureus and coagulase-negative species of staphylococcus. enterococci, streptococcus bovis, group b and viridans streptococci, and corynebacterium group j-k isolates were inhibited by less than or equal to 4 micrograms/ml of ly146032, which represented activit ... | 1987 | 3032612 |
| lack of association of streptococcus bovis with noncolonic gastrointestinal carcinoma. | since previous studies have shown an increased fecal carriage rate of streptococcus bovis in patients with carcinoma of the colon, a study was undertaken to determine the fecal carriage rate of this organism in patients with gastrointestinal carcinoma of noncolonic origin. organisms identified as s. bovis were isolated on fecal culture from 10 of 82 (12%) controls, 19 of 94 (20%) individuals with noncolonic gastrointestinal carcinoma, and 12 of 80 (15%) patients with other gastrointestinal disor ... | 1987 | 3578233 |
| interactions between rumen amylolytic and lactate-utilizing bacteria in growth on starch. | the growth and metabolism of the rumen amylolytic bacteria streptococcus bovis, butyrivibrio fibrisolvens and bacteroides ruminicola, growing in pure cultures and co-cultures with the rumen lactilytic bacteria megasphaera elsdenii and veillonella alcalescens were followed. the interaction of amylolytic bacteria with v. alcalescens represents a simple food chain. the interaction with m. elsdenii is more complex, since there is a simultaneous competition for products of the starch degradation. | 1987 | 3429358 |
| streptococcus bovis bacteraemia associated with candidal lesions of the large bowel in a leukaemic child. a case report. | a 5-year-old boy with acute myeloblastic leukaemia had large-bowel masses, demonstrated at autopsy, 5 weeks after an episode of streptococcus bovis bacteraemia. the association of strept. bovis bacteraemia with large-bowel disease, well documented in adults, should be considered in children. | 1987 | 3474796 |
| [aneurysm of the ulnar artery in streptococcus bovis septicemia. first case]. | 1987 | 2951723 | |
| antimicrobial therapy of streptococcal endocarditis. | the majority of patients with endocarditis caused by viridans streptococci or streptococcus bovis susceptible to less than or equal to 0.1 mg/l of penicillin may be treated successfully for two weeks with penicillin 20 x 10(6) million units intravenously together with streptomycin 7.5 mg/kg body weight intramuscularly twice daily or gentamicin 1 mg/kg body weight intravenously every 8 h. patients with nutritionally variant viridans streptococcal endocarditis should be treated for four weeks with ... | 1987 | 3316158 |
| streptococcus bovis endocarditis and carcinoma of the colon. | 1987 | 3504316 | |
| [tricuspid endocarditis with right-left auricular shunt through a patent foramen ovale]. | the authors report the case of a tricuspid endocarditis secondary to streptococcus bovis with important regurgitation and severe hypoxemia secondary to a right-left atrial shunt through a patent foramen ovale, requiring a surgical treatment which included the replacement of the tricuspid valve and closure of the dehiscence in the inter-atrial septum. the presence of a patent foramen ovale in the course of a tricuspid endocarditis has been exceptionally reported. this diagnosis deserves to be evo ... | 1987 | 3548566 |
| ruminal microbial development in conventionally or early-weaned calves. | eight bull calves (four holsteins and four ayrshire calves with mean birth weight of 38.8 kg) were ruminally cannulated at 3 d of age and allocated to one of two weaning programs. all calves were fed colostrum for 3 d after birth and milk until weaning. calves in the conventional-weaning program were fed a starter diet from 3 d of age and weaned at 6 wk of age. in the early-weaning program, calves were fed a highly palatable pre-starter diet from 3 d of age until they consumed 227 g/d, and then ... | 1987 | 3571026 |
| a proposed mechanism of monensin action in inhibiting ruminal bacterial growth: effects on ion flux and protonmotive force. | streptococcus bovis, a gram-positive ruminal bacterium, was unable to grow in the presence of monensin. when monensin (5 mg/liter) was added to actively growing cultures, there was an immediate decrease in growth rate, and within 3 h no further growth was observed. glucose utilization and lactate production continued for another 8 h even though growth had ceased. monensin caused a decrease (p less than .05) in intracellular k+, a decrease (p less than .05) in intracellular ph and an increase (p ... | 1987 | 3583956 |
| streptococcus bovis meningitis. | 1987 | 3625223 | |
| infective endocarditis: clinical features in young and elderly patients. | the elderly constitute an increasing percentage of patients with infective endocarditis. the disease manifestations and outcomes in 53 episodes of endocarditis in patients over the age of 60 were reviewed and compared with 55 episodes of endocarditis in patients less than 40 years of age and 46 episodes of endocarditis in patients aged 40 to 60. the percentage of cases caused by staphylococci and streptococci were roughly equal in all groups. enterococci, streptococcus bovis, and coagulase-negat ... | 1987 | 3674051 |
| streptococcus bovis infection of the pulmonary valve in an elderly woman with a colonic polyp. | 1987 | 3805562 | |
| therapy of streptococcal endocarditis: correlation of animal model and clinical studies. | streptococci (viridans group, streptococcus bovis, enterococci still account for the majority of cases of infective endocarditis in the non-addict population. experimental animal models of endocarditis have been used (primarily in rabbits) to delineate the major therapeutic principles of this disease; viz. bactericidal antimicrobial agents must be given parenterally in high dosages for prolonged period of time. overall, there is a good correlation between results obtained by: (1) in-vitro suscep ... | 1987 | 3316165 |
| effects of potassium ion concentrations on the antimicrobial activities of ionophores against ruminal anaerobes. | the antimicrobial activities of monensin and lasalocid against representative strains of ruminal bacteria were evaluated in medium containing three different concentrations of potassium (1.3, 7.9, or 23.3 mm). the growth of eubacterium ruminantium was inhibited by low concentrations of ionophores (less than or equal to 0.16 mg/liter), while the strain of streptococcus bovis tested was resistant to high concentrations of ionophores (40 mg/liter) at all potassium concentrations tested. the mics of ... | 1987 | 3426214 |
| streptococcus bovis bacteraemia and its association with alimentary-tract neoplasm. | 1987 | 2880000 | |
| incidence of colonic lesions in streptococcus bovis and enterococcal endocarditis. | 1987 | 2882164 | |
| noma in an unusual case of perforated appendicitis with pneumoperitoneum. | noma is a very rare gangrenous infection of the oral cavity usually associated with debilitating diseases, immunosuppression, or malnutrition. its development in a previously healthy 13-year-old boy with perforated appendicitis is presented. streptococcus bovis type ii and e coli were isolated from the noma and streptococcus bovis, bacteroides fragilis, and bacteroides asacharolyticus from the peritoneal fluid. a transient impaired immune cellular function was found and may have contributed to t ... | 1987 | 3430301 |
| seasonal changes in the cecal microflora of the high-arctic svalbard reindeer (rangifer tarandus platyrhynchus). | the dominant cecal bacteria in the high-arctic svalbard reindeer were characterized, their population densities were estimated, and cecal ph was determined in summer, when food quality and availability is good, and in winter, when it is very poor. in summer the total culturable viable bacterial population was (8.9 +/- 5.3) x 10(8) cells ml-1, whereas in winter it was (1.5 +/- 0.7) x 10(8) cells ml-1, representing a decrease to 17% of the summer population density. of the dominant species of cult ... | 1987 | 3030193 |
| comparative survival of antibiotic-resistant and -sensitive fecal indicator bacteria in estuarine water. | the survival of antibiotic-resistant and -sensitive strains of escherichia coli, enterococcus faecalis, enterococcus faecium, streptococcus equinus, and two environmental isolates, ap17 and aq62, was examined in estuarine water. each strain was rendered resistant to a combination of two antibiotics by serial passage in increasing concentrations of antibiotics. cultures were incubated in filter-sterilized estuarine water for up to 7 days. recovery was assessed by examining colony-forming ability ... | 1987 | 3111372 |
| human choriogonadotropin-like material in bacteria of different species: electron microscopy and immunocytochemical studies with monoclonal and polyclonal antibodies. | immunocytochemical studies using antisera to whole human choriogonadotropin (hcg), to its alpha- and beta-subunits and to the cooh-terminal peptide of hcg beta, and two monoclonal antibodies to hcg beta, demonstrated expression of hcg-like material, its individual subunits and/or fragments in nine bacterial strains. seven of these were isolated from patients with cancer and were definitely identified as streptococcus faecalis (three strains), staphylococcus haemolyticus (two strains) and staphyl ... | 1987 | 3116165 |
| susceptibility and resistance of ruminal bacteria to antimicrobial feed additives. | susceptibility and resistance of ruminal bacterial species to avoparcin, narasin, salinomycin, thiopeptin, tylosin, virginiamycin, and two new ionophore antibiotics, ro22-6924/004 and ro21-6447/009, were determined. generally, antimicrobial compounds were inhibitory to gram-positive bacteria and those bacteria that have gram-positive-like cell wall structure. mics ranged from 0.09 to 24.0 micrograms/ml. gram-negative bacteria were resistant at the highest concentration tested (48.0 micrograms/ml ... | 1987 | 3116929 |
| [infectious endocarditis caused by streptococcus bovis and alcoholic cirrhosis complicated by hepatoma]. | the case is reported of a 66-year old man who developed streptococcus bovis endocarditis on a fairly loose aortic stenosis and who also presented with alcoholic cirrhosis complicated by an ultimately lethal hepatoma. on this occasion, comments are made on the following points: -str. bovis is increasingly responsible for bacterial endocarditis. this micro-organism is now rapidly and reliably identified. -str. bovis endocarditis has some clinical features of its own. -patients in whom the usual po ... | 1987 | 2823737 |
| transport and phosphorylation of disaccharides by the ruminal bacterium streptococcus bovis. | toluene-treated cells of streptococcus bovis jb1 phosphorylated cellobiose, glucose, maltose, and sucrose by the phosphoenolpyruvate-dependent phosphotransferase system. glucose phosphorylation was constitutive, while all three disaccharide systems were inducible. competition experiments indicated that separate phosphotransferase systems (enzymes ii) existed for glucose, maltose, and sucrose. [14c]maltose transport was inhibited by excess (10 mm) glucose and to a lesser extent by sucrose (90 and ... | 1987 | 2827569 |
| [right-left shunt in tricuspid endocarditis caused by streptococcus bovis]. | 1986 | 2950416 | |
| [endocarditis caused by streptococcus bovis and subjacent gastrointestinal disease]. | 1986 | 3563296 | |
| streptococcus bovis catheter infection and the short bowel syndrome. | streptococcus bovis bacteremia has been associated with several gastrointestinal disorders, most notably carcinoma of the colon. this report describes a 57-year-old woman with short bowel syndrome in whom s. bovis bacteremia and an infection of an indwelling parenteral nutrition catheter developed. a barium enema revealed diverticula and a foreshortened small intestine. this case implicates the short bowel syndrome in the pathogenesis of s. bovis bacteremia and supports empiric antibiotic covera ... | 1986 | 3963050 |
| the effect of ph on the growth and metabolism of streptococcus bovis in continuous culture. | streptococcus bovis h13/1 was grown anaerobically at phs between 5.0 and 6.5 in a glucose-limited chemostat at a dilution rate of 0.05/h. the growth yield and the production of acetate, ethanol and formate decreased at phs less than 6.5 whereas the production of lactate increased at the lower ph values. when a culture was subjected to sequential ph changes, growth yield and fermentation products were influenced not only by the ph existing in the culture medium but also by the metabolic activity ... | 1986 | 3781936 |
| streptococcus bovis bacteremia and underlying gastrointestinal neoplasms. | two patients are described in whom streptococcus bovis bacteremia was the only clue to the presence of a colonic neoplasm. a third patient had the rare association of gastric carcinoma and streptococcus bovis bacteremia that followed an operation for the carcinoma. the need for both complete gastrointestinal survey in patients with streptococcus bovis bacteremia and administration of appropriate antibiotic prophylaxis during surgical manipulation is emphasized. | 1986 | 3784983 |
| phosphoenolpyruvate-dependent phosphorylation of hexoses by ruminal bacteria: evidence for the phosphotransferase transport system. | six species of ruminal bacteria were surveyed for the phosphoenolpyruvate (pep)-dependent phosphorylation of glucose. selenomonas ruminantium hd4, streptococcus bovis jb1, and megasphaera elsdenii b159 all showed significant activity, but butyrivibrio fibrisolvens 49, bacteroides succinogenes s85, and bacteroides ruminicola b1(4) showed low rates of pep-dependent phosphorylation and much higher rates in the presence of atp. s. ruminantium hd4, s. bovis jb1, and m. elsdenii b159 also used pep to ... | 1986 | 3789722 |
| streptococcal endocarditis: single vs. combination antibiotic therapy and role of various species. | forty-eight patients with 51 episodes of infective endocarditis caused by streptococci were studied in a comparison of the efficacy of single antibiotic therapy versus that of combination therapy. there was no statistical difference in terms of clinical course, toxicity, and mortality between the group given a single drug and that given combination therapy. however, one patient experienced two relapses, in both instances after high-dose penicillin therapy. the species and antibiotic susceptibili ... | 1986 | 3952425 |
| infective endocarditis due to penicillin-tolerant streptococcus bovis. | two streptococcus bovis isolates obtained from patients with endocarditis were found to be tolerant to penicillin and other cell wall active agents. by time-kill analysis, penicillin and streptomycin acted synergistically against these strains. the existence of tolerant s. bovis strains should be considered when initially choosing antibiotics for the treatment of serious s. bovis infections. | 1986 | 3720266 |
| antibodies to bacterial vaccines demonstrating specificity for human choriogonadotropin (hcg) and immunochemical detection of hcg-like factor in subcellular bacterial fractions. | investigations were done to determine whether vaccines prepared with chemically killed staphylococcus haemolyticus ru1 and streptococcus bovis av46 (bacteria that have been demonstrated to express human choriogonadotropin [hcg]-like material on their surface) elicited antibodies in rabbits with specificity for hcg determinants. in addition, the anatomical locus of the hcg-like factor was determined by separation of bacterial subcellular fractions. the results demonstrated that these bacterial va ... | 1986 | 3721581 |
| streptococcus bovis endocarditis with vertebral osteomyelitis. | 1986 | 3750018 | |
| vertebral osteomyelitis caused by streptococcus bovis. | the association of streptococcus bovis septicemia with abnominal neoplasms has been well-documented. the case of a man who presented with vertebral osteomyelitis due to s. bovis is reported; he was subsequently found to have bacteremia and colonic polyps. it is recommended that patients who present with localized as well as generalized s. bovis infections undergo yearly colonoscopy. | 1986 | 3946470 |
| evaluation of aztreonam in the treatment of spontaneous bacterial peritonitis in patients with cirrhosis. | to determine the efficacy of aztreonam in the treatment of spontaneous bacterial peritonitis in patients with hepatic cirrhosis, 14 patients (7 males, 7 females) with 16 gram-negative infective episodes (12 escherichia coli and 4 klebsiella pneumoniae) were treated with aztreonam infusions at doses of 1 gm per 8 hr for a planned 14-day period. ages ranged from 40 to 75 years with a mean of 57 +/- 10 years. all organisms were highly susceptible to aztreonam (minimal inhibitory concentration less ... | 1986 | 3530945 |
| growth of gram-positive mastogenic bacteria in normal, simulated bulk tank, and mastitic milk held at simulated fluctuating temperatures of farm bulk tank. | growth of staphylococcus aureus, staphylococcus epidermidis, streptococcus agalactiae, streptococcus dysgalactiae, streptococcus bovis, and streptococcus uberis was studied in normal milk, simulated bulk tank milk, and aseptic mastitic milk held at simulated fluctuating temperatures of farm bulk tank for 48 h. with the exception of s. bovis, growth rates of the other five bacteria were similar in both normal and simulated bulk tank milk. mastitic milk inhibited growth of all bacteria studied. a ... | 1986 | 3531259 |
| stoichiometry of glucose and starch splitting by strains of amylolytic bacteria from the rumen and anaerobic digester. | the stoichiometry of glucose and starch splitting by the amylolytic bacteria streptococcus bovis, selenomonas ruminantium, butyrivibrio fibrisolvens, eubacterium ruminantium and clostridium sp. was followed. there were many differences in the ratios of metabolites and in growth yields, as well as in the cell composition, between the growth on glucose and starch. the bacteria employ different nutritional strategies with respect to both energy sources. | 1986 | 3759723 |
| presumptive identification of "streptococcus milleri" in 5 h. | rapid miniaturized tests for acetoin production, arginine hydrolysis, and sorbitol fermentation were used for presumptive identification of non-beta-hemolytic "streptococcus milleri" isolates in 5 h. all 77 "s. milleri" strains tested were voges-proskauer positive, arginine hydrolysis positive, and sorbitol fermentation negative. on the basis of these reactions, "s. milleri" was differentiated from isolates of other viridans group streptococcal species and from streptococcus bovis. | 1986 | 3760146 |
| a case of streptococcus bovis endocarditis and colonic carcinoma. | 1985 | 3972551 | |
| the rumen microbiology of seaweed digestion in orkney sheep. | the microbial populations of the rumens of seaweed-fed and pasture-fed orkney sheep were examined. the populations in the pasture-fed sheep were similar to those of other domestic ruminants fed on land plants, but those of the seaweed-fed animals showed major differences in the dominant species. total ciliate populations were quantitatively similar, but in the seaweed-fed animals dasytricha ruminantium was one of the most dominant species. no phycomycete fungi or cellulolytic bacteria were found ... | 1985 | 4030526 |