| antibodies reactive with leptotrichia buccalis in human serum from infancy to adulthood. | | 1976 | 8029 |
| blastogenic response of human lymphocytes to oral bacterial antigens: comparison of individuals with periodontal disease to normal and edentulous subjects. | cell-mediated immunity in humans to antigens derived from oral plaque bacteria was investigated by using the lymphocyte blastogenesis assay. subjects with varying severities of periodontal disease including normal, gingivitis, periodontitis, and edentulous were compared. mononuclear leukocytes were separated from peripheral blood and cultured with antigens prepared by sonication of actinomyces viscosus (av), actinomyces naeslundii (an), veillonella alcalescens (va), leptotrichia buccalis (lb), b ... | 1976 | 10259 |
| serologic reactions of oral gram negative anaerobic bacilli. | serological reactions were performed using hyperimmune rabbit antisera and antigenic preparations of leptotrichia buccalis, fusobacterium fusiforme, and fusobacterium polymorphum. all tests indicated that there was serologic cross reactivity between the two fusobacterium species. no cross reactivity could be detected between the fusobacterium species and l. buccalis. the findings suggest that f. fusiform and f. polymorphum are similar in their immunogenicity, and that the grouping of these two o ... | 1979 | 105024 |
| antigens of leptotrichia buccalis i. their serologic reaction with human sera. | | 1975 | 127031 |
| antigens of leptotrichia buccalis ii. their reaction with complement fixing igm in human sera. | | 1975 | 127032 |
| leptotrichia buccalis hemagglutination in cell binding and salivary inhibition studies. | the characteristic hemagglutination (ha) of leptotrichia buccalis was used for measuring its attachment to various human cells and for determining if saliva contained hemagglutination inhibition (hi) factors. the microbial strain utilized displayed the characteristic em morphology of l. buccalis. sonicated preparations of the organism were tested for ha activity before and after adsorption with human cells. buccal epithelial cells, red blood cells (rbc), hela and embryonic kidney cells all bound ... | 1978 | 151130 |
| properties of the human salivary aggregating factor for leptotrichia buccalis cells. | | 1978 | 280284 |
| hemagglutinating activity of fusobacterium nucleatum. | gingival isolates of oral fusobacterium nucleatum strains (gram-negative anaerobic fusiform bacilli) have shown the characteristic ability to hemagglutinate a variety of erythrocytes (rbc) of human and animal origin. other members of the genus tested (f. necrophorus, f. varium, and f. mortiferum) displayed little if any ability to hemagglutinate rbc. the hemagglutination (ha) activity could be observed in the f. nucleatum strains with the whole cells and in most instances with sonicated preparat ... | 1977 | 401771 |
| blastogenic response of human lymphocytes to oral bacterial antigens: characterization of bacterial sonicates. | soluble sonicate supernatant preparations were made from actinomyces viscosus (atcc 19246), a. naeslundii (atcc 12104), two strains of veillonella alcalescens (strain hv-1 and a human oral isolate), streptococcus sanguis (atcc 10556), s. mutans (strain 6715-t2), bacteroides melaninogenicus (strain k110), and leptotrichia buccalis (isolated from human dental plaque). these supernatants were characterized with reference to their chemical and antigenic components and their biological activity deter ... | 1976 | 977126 |
| haemagglutinating activity of leptotrichia buccalis cells and their adherence to saliva-coated enamel powder. | | 1976 | 1066115 |
| soluble antigens of leptotrichia buccalis: their reaction with rabbit antisera. | | 1975 | 1068997 |
| unusual cell wall ultrastructure of leptotrichia buccalis. | leptotrichia buccalis was examined by transmission electron microscopy. its cell wall structure in generally compatible with that of gram-negative bacteria. however, the scale-like membranous folds associated with the external surface of the outer cell membrane appear to be sufficiently unusual to serve as a useful morphological criterion in the identification of l. baccalis cells. | 1975 | 1150629 |
| comparative in-vitro activity of azithromycin, macrolides (erythromycin, clarithromycin and spiramycin) and streptogramin rp 59500 against oral organisms. | the in-vitro activities of azithromycin, clarithromycin, spiramycin and rp 59500 were compared with erythromycin against a wide range of oral organisms which have been implicated in oral infections and/or endocarditis (clindamycin was included for oral streptococci). all compounds tested showed good activity against many of these organisms, although some variation was observed with different species. clarithromycin was the most active of the antibiotics tested against gram-positive anaerobes, in ... | 1992 | 1331019 |
| dna base composition, aerotolerance and enzyme patterns of leptotrichia buccalis. | the guanine plus cytosine content of the dna of leptotrichia buccalis varied from 28.4 to 29.5 mol% (three strains). eleven strains examined grew well under anaerobic and microaerobic conditions, but slowly in air in the presence of co2. when examined for preformed enzymes in the apizym complete research kit, positive reactions were obtained for several glucosidases and carboxylic ester hydrolases, and for a few peptidases. | 1992 | 1554484 |
| use of synthetic oligonucleotide dna probes for the identification of different strains of fusobacterium nucleatum. | the ability of three different oligonucleotide probes to identify different oral strains of fusobacterium nucleatum was tested. probes 119 and 214 were designed on the basis of known amino acid sequences from the n-terminal end of an outer membrane protein of f. nucleatum strain fev1. probe h 2.1, was a randomly cloned chromosomal dna fragment of 2.1 kbp. the specificities of the probes were examined by testing each of them against a panel of five other species of fusobacterium (six strains), or ... | 1991 | 1837056 |
| use of chemotaxonomy as an aid to differentiate among capnocytophaga species, cdc group df-3, and aerotolerant strains of leptotrichia buccalis. | four strains of fastidious gram-negative rods, thought to be capnocytophaga species (formerly cdc group df-1 or bacteroides ochraceus) or cdc group df-3 on the basis of conventional phenotypic criteria, were also analyzed for cellular fatty acid (cfa) composition. it was found that the cfa compositions of these strains were qualitatively incorrect for those taxa. subsequently, it was determined that all four bacteria were in fact aerotolerant strains of leptotrichia buccalis, based on biochemica ... | 1991 | 1939582 |
| leptotrichia buccalis bacteremia in patients with cancer: report of four cases and review. | leptotrichia buccalis, an anaerobic gram-negative rod, is part of the normal oral flora and has rarely been isolated from clinical material. we describe four patients with neutropenia and progressive malignancy who had symptomatic l. buccalis bacteremia, and we review an additional four cases from the literature. the mean age of the patients was 31 years (range, 7-73 years), with an equal number of males and females. the number of positive blood cultures in each case ranged from one to four (mea ... | 1991 | 2041949 |
| obligately anaerobic bacterial species isolated from foot-rot lesions in goats. | lesions showing clinical signs of foot-rot from 120 goats were cultured on six selective media during october 1987 to november 1988. a total of 582 strictly anaerobic microorganisms belonging to 50 different species was isolated and identified. the anaerobes most frequently isolated belonged to the following genera: bacteroides (80%), peptostreptococcus (63.6%), megasphaera (40%), fusobacterium (29.2%), clostridium (22.5%), propionibacterium (12.5%), eubacterium (11.7%) and leptotrichia (10.8%). ... | 1990 | 2271912 |
| capnophilic and anaerobic bacteremia in neutropenic patients: an oral source. | the currently accepted empiric antibiotic therapy for bacterial infections in neutropenic patients may not cover the possibility of capnophilic and anaerobic bacteremia. many of these infections develop in patients with severe mucositis or periodontitis, and the type of organisms recovered also suggests an oral source of infection. we present two cases of bacteremia in neutropenic patients who had been empirically treated with ceftazidime and piperacillin plus amikacin. in the first case a beta- ... | 1990 | 2305182 |
| outer membrane proteins as major antigens of fusobacterium nucleatum. | the immunochemical reactions of rabbit polyclonal antibodies directed to different preparations of fusobacterium nucleatum i.e, whole cells, peptidoglycan associated proteins, a peptidoglycan-protein complex and a purified 40 kilodalton (kda) protein, were investigated on outer membrane preparations of fusobacterium species and a restricted number of leptotrichia buccalis after their separation on sodium dodecyl sulphate polyacrylamide gels and electrotransfer to nitrocellulose. all f. nucleatum ... | 1989 | 2627499 |
| a pyrolysis mass spectrometry study of fusobacteria. | strains of fusobacteria (143) were examined by pyrolysis mass spectrometry (py-ms) with a horizon instruments pyms 200x. fusobacterium necrogenes, f. necrophorum, f. nucleatum, f. mortiferum, f. varium, f. gonidiaformans, f. naviforme, f. russii and leptotrichia buccalis were discriminated. strains of fusobacteria isolated from tropical ulcers, although similar to f. mortiferum in conventional tests, were discriminated from each of these species in py-ms. identification of 416 spectra to species ... | 1989 | 2926794 |
| [bactericidal activity examination (mbc) of glutaric aldehyde on anaerobic non-sporing bacteria]. | sensibility (mbc) of 97 strains of non-sporing anaerobes separated from clinical materials coming from oral cavity to glutaric aldehyde (koch light lab) has been examined. the experiments have been carried out by the suspension method adapting it properly to the examinations of anaerobes. 72 hours' cultures in enriched thioglycolate broth containing 10(9) of living cells of anaerobes in 1 ml have been used as inoculum. mbc results were read off after 7 days' incubation at temperature of 37 degre ... | 1988 | 3152063 |
| [sterinole and cetylpirydine chloride influence on non-sporulated anaerobic bacteria of oral cavity]. | sensibility (mbc--minimal bactericidal concentration) of 97 strains of non-sporulated anaerobic bacteria separated from clinical material from oral cavity to sterinole (polfa) and cetylpirydine chloride has been examined. experiments have been carried out by means of suspension method adapted appropriately to the tests on non-sporulated anaerobes. 72 hours' cultures of strains containing 10(9) of live bacterial cells in 1 ml have been used as inoculum. mbc readings have been performed after 7 da ... | 1988 | 3270591 |
| kinin generation in the gingival inflammatory response to topically applied bacterial lipopolysaccharides. | a water-soluble lipopolysaccharide from salmonella enteritidis and a phenol-soluble lipopolysaccharide from leptotrichia buccalis were applied topically to the healthy marginal gingivae of beagle dogs. saline was applied to contralateral areas as an internal control. increases in vascular permeability were monitored by measurement of gingival fluid, and the collected gingival fluid samples were assayed for kininogenase and kinin activities. both lipopolysaccharides induced an inflammatory respon ... | 1986 | 3511110 |
| oligosaccharides obtained by partial hydrolysis of lipopolysaccharides from leptotrichia buccalis. | lipopolysaccharides (lps) from leptotrichia buccalis, strains l11, atcc 14201 and atcc 19616 were partially degraded with 1% acetic acid. the acid soluble polysaccharides were subjected to gel filtration. these experiments showed that the carbohydrate moiety of lps from atcc 14201 and atcc 19616 were similar, consisting of a core oligosaccharide unsubstituted by 0-side chains containing galactose, glucose and d-glycero-d-manno-heptose as neutral sugars. the core analogous fraction isolated from ... | 1985 | 3864216 |
| leptotrichia buccalis bacteremia in neutropenic children. | two new cases of leptotrichia buccalis bacteremia in seriously ill patients were described. the anaerobic, gram-negative microorganism l. buccalis was isolated from blood cultures of two children with severe leukopenia. anaerobic organisms should be taken into account when a standard protective antibiotic chemotherapy is considered in the immunosuppressed host. | 1985 | 4031045 |
| [leptotrichia buccalis--culture, biochemistry and antibiotics]. | | 1974 | 4154653 |
| isolation of a phenol-soluble endotoxin from leptotrichia buccalis. | | 1973 | 4513115 |
| in vitro evaluation of actinobolin as an antibiotic for the treatment of periodontal disease. | actinobolin was evaluated in vitro by a paper disc-agar diffusion method for inhibitory activity against mixed microbial cultures obtained from patients with periodontal disease and against pure bacterial cultures tentatively identified as strains of bacteroides melaninogenicus, fusobacterium fusiforme, leptotrichia buccalis, and veillonella parvula. every culture tested was inhibited to some degree by actinobolin. these observations suggest that actinobolin may be effective in the treatment of ... | 1972 | 5059624 |
| a study of leptotrichia buccalis. ii. biochemical and physiological observations. | | 1965 | 5213005 |
| the biological activity of leptotrichia buccalis endotoxin. | | 1966 | 5335235 |
| ultrastructure of leptotrichia buccalis. | | 1969 | 5787001 |
| chemical characteristics of leptotrichia buccalis endotoxin. | | 1966 | 5970130 |
| an anaerobic oral filamentous organism possibly related to leptotrichia buccalis. 1. morphology, some physiological and serological properties. | | 1967 | 6031368 |
| an anaerobic oral filamentous organism possibly related to leptotrichia buccalis. 2. composition of cell walls. | | 1967 | 6083389 |
| rapid method that aids in distinguishing gram-positive from gram-negative anaerobic bacteria. | several species of anaerobic bacteria display variable gram stain reactions which often make identification difficult. a simple, rapid method utilizing a 3% solution of potassium hydroxide to distinguish between gram-positive and gram-negative bacterial was tested on 213 strains of anaerobic bacteria representing 19 genera. the gram stain reaction and koh test results were compared with the antibiotic disk susceptibilities (vancomycin and colistin) the preliminary grouping of anaerobic bacteria. ... | 1981 | 6165736 |
| [septicemia due to leptotrichia buccalis in an immuno-suppressed patient]. | the authors report a case of septicemia due to leptotrichia buccalis in a patient with underlying lymphatic leukemia. it is the second case reported in the literature. this observation shows, once again, that bacteria known as "non virulent" can exhibit pathogenicity in immunosuppressed patients. | 1982 | 6291160 |
| infective endocarditis due to leptotrichia buccalis: a case report. | a patient with down's syndrome presented with infective endocarditis due to leptotrichia buccalis. the source of the infection was not detected, but the predisposing factor was a complex cardiac malformation. the disease followed a subacute course, had a number of immunologic manifestations and was successfully treated with a 28-day course of penicillin g, given intravenously. l. buccalis has never been reported before as a cause of endocarditis. | 1984 | 6692239 |
| purification and quantitative chemical analysis of cell wall peptidoglycans of leptotrichia buccalis. | peptidoglycans of leptotrichia buccalis atcc 14201 and atcc 19616 were isolated by extraction with sodium dodecyl sulfate and subsequent digestion of the sodium dodecyl sulfate-insoluble residue with proteases and alpha-amylase. cell wall fractions obtained by sodium dodecyl sulfate extraction and protease digestion were highly contaminated by a glucose polymer. the polyglucose was removed by alpha-amylase treatment, and the peptidoglycans were left behind. analyses with amino acids and amino su ... | 1983 | 6822410 |
| regulation of lactic acid production by leptotrichia buccalis. | | 1981 | 6937247 |
| the development of an altered gingival crevicular microflora in the alloxan-diabetic rat. | the microflora of the rat gingival crevice were examined at various time intervals after inducing experimental diabetes. a variety of gram-positive and gram-negative cocci and short rods were isolated from the normal rat crevice. within a week after alloxan administration, leptotrichia buccalis was detected for the first time. other features in the diabetic animals included an increased frequency of isolation of proteus spp., lactobacillus spp. and decrease of escherichia coli. occasionally, a d ... | 1982 | 6953937 |
| serious infection with leptotrichia buccalis. report of a case and review of the literature. | leptotrichia buccalis is an obligately anaerobic, gram-negative rod classified as a member of the family bacteroidaceae. organisms found in this family (bacteroides and fusobacteria) are frequent causes of severe infection in human beings. l. buccalis is a constituent of normal oral flora. leptotrichia has rarely been recovered from mixed infections primarily of the head and neck. it has not previously been reported as a cause of serious infection in man. we report a case of cavitary pneumonia a ... | 1980 | 7001901 |
| [septicemia due to leptotrichia buccalis in an immuno-suppressed patent (author's transl)]. | the authors report a case of septicemia due to leptotrichia buccalis in a patient with underlying lymphatic leukemia. it is the second case reported in the literature. this observation shows, once again, that bacteria known as "non virulent" can exhibit pathogenicity in immunosuppressed patients. | 1982 | 7048217 |
| chemical composition, ultrastructure and some serological properties of lipopolysaccharides from leptotrichia buccalis. | lipopolysaccharide (lps) was extracted with aqueous phenol from leptotrichia buccalis strains l 11, atcc 14201 and atcc 19616. virtually all the lps was found in the water phase. lps could also be extracted with phenol/chloroform/petroleum ether, but not with cold trichloroacetic acid. all lps preparations contained d-glycero-d-manno-heptose, galactose, glucose, glucosamin, n-dodecanoate, 3-hydroxy-n-tetradecanoate and phosphorus. in addition lps from l11 contained 2-keto-3-deoxyoctonate and an ... | 1982 | 7148458 |
| isolation by gel filtration and ion-exchange chromatography of a carbohydrate-rich lps from phenol-water extracts of leptotrichia buccalis strain l11. | | 1982 | 7168318 |
| comparative in vitro activity of new beta-lactam antibiotics against anaerobic bacteria. | several new beta-lactam antimicrobial agents have been introduced in the last few years. in this investigation, the in vitro activities of several recently introduced cephalosporins (cefoperazone, cefotaxime, ceftazidime, and ceftizoxime), moxalactam, and n-formimidoyl thienamycin were compared with those of cefoxitin, clindamycin, and metronidazole against 203 strains of anaerobic bacteria. at achievable serum levels, all of the antimicrobial agents were active against essentially 100% of the s ... | 1981 | 7325628 |
| leptotrichia buccalis bacteremia in patients treated in a single bone marrow transplant unit. | we describe four cases of bacteremia due to leptotrichia buccalis (an organism that is part of the normal human oral flora) that occurred in a bone marrow transplant unit over a 3-month period. all of the patients were neutropenic, all had mucositis or esophagitis, and all were receiving antimicrobial prophylaxis with ciprofloxacin and vancomycin (drugs to which leptotrichia is resistant). one patient died of adult respiratory distress syndrome; the others had minimal symptoms. pulsed field gel ... | 1995 | 7795070 |
| the surface structure of leptotrichia buccalis. | leptotrichia buccalis shows a mosaic of surface structure on its outer membrane consisting of curved ridges 35 mm high and 22 nm apart, and erect on that surface. fimbriae (common pili) are not present and nor is an s layer. the flap-like ridges consist of strings of macromolecules radiating from the cell surface. this ridge structure is not soluble in any of the usual chaotropes and can only be released when the outer membrane has been damaged or dispersed by extracting envelope preparations wi ... | 1994 | 7912643 |
| endocarditis caused by a leptotrichia buccalis-like bacterium in a patient with a prosthetic aortic valve. | the isolation of a leptotrichia buccalis-like bacterium from the blood of a patient with endocarditis associated with a prosthetic aortic valve is reported. the organism was isolated from different blood cultures. it was similar but not completely identical to leptotrichia buccalis. the microbiological identification was confirmed independently by three laboratories, including two reference institutions. the case and the characteristics of the microorganism are reported. | 1993 | 8513815 |
| bacteraemia with leptotrichia buccalis: report of a case and review of the literature. | we report here on a new case of l. buccalis bacteraemia. to our knowledge 16 other cases of l. buccalis bacteraemia have been reported in the literature, most of them in neutropenic patients. however l buccalis endocarditis does occasionally occur in non-neutropenic patients. the identification of l. buccalis is based on well known phenotypic features and confirmed by the detection of a large peak of lactic acid by gas chromatography for non volatile organic acids. l. buccalis is sensitive to a ... | 1996 | 8858893 |
| hepatic abscess likely related to leptotrichia buccalis in an immunocompetent patient. | we present the case of a 64-year-old previously healthy man admitted for long evoluating fever. buccal examination showed severe parodontitis. blood cultures were positive for leptotrichia buccalis and computed abdominal tomography discovered a hepatic abscess. so far, only exceptional cases of systemic diseases associated with leptotrichia buccalis infections have been described in immunocompetent patients. thus, in cases of severe parodontitis and long evoluating fever, attention must be paid ... | 1996 | 8938638 |
| early microbial colonization of permucosal implants in edentulous patients. | in edentulous patients, the microbial colonization of permucosal implants of sintered hydroxyapatite was studied. samples were taken from mucosa and dentures before insertion of implants and from supra- and subgingival sites two to 10 weeks after insertion. in total, five patients and 10 implants with clinically healthy peri-implant tissues were studied. the samples were investigated by dark-field microscopy and anaerobic culture. the supragingival plaque of the implants was dominated by gram-po ... | 1987 | 10872401 |
| risk factors for anaerobic bloodstream infections in bone marrow transplant recipients. | the incidence of anaerobic bloodstream infections (bsi) in patients who underwent bone marrow transplantation (bmt) recently increased at our institution. a retrospective case-control study of patients undergoing bmt from january 1995 through december 1998 was performed to determine the microbiological characteristics, epidemiology, and outcome of anaerobic bsi and to identify independent risk factors for infection. anaerobic bsi occurred in 23 patients, for a rate of 4 bsis per 100 bmt procedur ... | 2001 | 11438899 |
| 16s-23s rdna internal transcribed spacer sequences for analysis of the phylogenetic relationships among species of the genus fusobacterium. | the 16s-23s rdna internal transcribed spacer (its) regions of all currently defined fusobacterium species and related taxa such as leptotrichia buccalis, sebaldella termitidis and streptobacillus moniliformans, were analysed to examine inter- and intraspecies as well as subspecies relationships. for the its-amplification, a new eubacterial universal primer pair was designed and used. the majority of the fusobacterium strains, along with l. buccalis showed one major, and two to three weaker, dist ... | 2002 | 11931161 |
| purification and some properties of phospho-beta-galactosidase from the gram-negative oral bacterium leptotrichia buccalis atcc 14201. | phospho-beta-galactosidase (p-beta-gal; ec 3.2.1.85) is induced during growth of leptotrichia buccalis atcc 14201 on lactose and lactulose. the enzyme has been purified to electrophoretic homogeneity (m(r) approximately 53 kda, pi approximately 4.8), and kinetic parameters have been determined using the chromogenic analog o-nitrophenyl-beta-d-galactopyranoside-6-phosphate as substrate. both atp and galactose-6-phosphate are inhibitors of p-beta-gal activity. microsequence analysis has identified ... | 2002 | 12351228 |
| correlations between bacterial levels in autologous subgingival plaque and saliva of adult sudanese. | the aim of this study was to assess levels of oral bacteria and their correlations in paired samples of saliva and subgingival plaque in a population of adult sudanese. whole saliva and pooled subgingival plaque samples from six probing sites of one tooth in each jaw were obtained from 56 sudanese adults (mean age 35.2+/-8.9 years). levels of 24 oral bacteria in the autologous saliva and pooled plaque sample of each subject were assessed by dna probes and checkerboard dna-dna hybridization. ther ... | 2002 | 12483235 |
| usefulness of the microseq 500 16s ribosomal dna-based bacterial identification system for identification of clinically significant bacterial isolates with ambiguous biochemical profiles. | due to the inadequate automation in the amplification and sequencing procedures, the use of 16s rrna gene sequence-based methods in clinical microbiology laboratories is largely limited to identification of strains that are difficult to identify by phenotypic methods. in this study, using conventional full-sequence 16s rrna gene sequencing as the "gold standard," we evaluated the usefulness of the microseq 500 16s ribosomal dna (rdna)-based bacterial identification system, which involves amplifi ... | 2003 | 12734240 |
| a study of leptotrichia buccalis. | | 1957 | 13416200 |
| isolation of leptotrichia buccalis and fusobacterium species from oral material. | | 1957 | 13483608 |
| isolation of leptotrichia buccalis. | | 1958 | 13575396 |
| the classification of organisms termed leptotrichia (leptothrix) buccalis. iii. growth and biochemical characteristics of bacterionema matruchotil. | | 1961 | 13705432 |
| the classification of organisms termed leptotrichia (leptothrix) buccalis. i. review of the literature and proposed separation into leptotrichia buccalis trevisan, 1879 and bacterionema gen. nov., b. matruchotti (mendel, 1919) comb. nov. | | 1961 | 13705433 |
| the classification of organisms termed leptotrichia (leptothrix) buccalis. ii. reproduction of bacterionema matruchotii. | | 1961 | 13705434 |
| the classification of organisms termed leptotrichia (leptothrix) buccalis. iv. physiological and biochemical characteristics of bacterionema matruchotii. | | 1961 | 13716258 |
| serological specificity of acid-soluble antigens of bacterionema matruchottii. | sibal, louis r. (university of illinois college of medicine, chicago), arthur v. kroeger, dan kumarich, and esther meyer. serological specificity of acid-soluble antigens of bacterionema matruchottii. j. bacteriol. 83:811-818. 1962.-the serological specificity of acid-soluble antigens extracted from the oral, filamentous organism, bacterionema matruchottii, was demonstrated by the microprecipitin reaction. there was no evidence of cross-reaction with antisera prepared against leptotrichia buccal ... | 1962 | 13912471 |
| antigenic characteristics of leptotrichia buccalis (fusobacterium fusiforme). | gustafson, robert l. (university of illinois college of medicine, chicago) and arthur v. kroeger. antigenic characteristics of leptotrichia buccalis (fusobacterium fusiforme). j. bacteriol. 84:1313-1320. 1962.-thirty-nine isolates of an oral filamentous organism, usually termed leptotrichia buccalis trevisan (fusobacterium fusiforme), were isolated from materia alba or saliva. the cultural, morphological, and biochemical characteristics were similar to those reported by other investigators. aggl ... | 1962 | 13951402 |
| immunochemical analysis of human oral strains of fusobacterium and leptotrichia. | de araujo, wilson c. (national institute of dental research, bethesda, md.), eileen varah, and stephan e. mergenhagen. immunochemical analysis of human oral strains of fusobacterium and leptotrichia. j. bacteriol. 86:837-844. 1963.-lipopolysaccharides, isolated by phenol-water extraction of 27 strains of oral gram-negative bacteria conforming either to fusobacterium polymorphum or leptotrichia buccalis, were shown to be endotoxic by their ability to alter dermal reactivity to epinephrine and to ... | 1963 | 14066482 |
| antibody to leptotrichia buccalis in human sera. | | 1965 | 14270476 |
| gingival crevice microbiota from chinese patients with gingivitis or necrotizing ulcerative gingivitis. | the objective of this study was to quantitatively compare the bacterial population structure in plaque from the gingival margin of two groups of 21 chinese patients with gingivitis or necrotizing ulcerative gingivitis (nug). subjects were recruited in four dental clinics in eastern china. samples were quantitatively assessed by immunofluorescence and fluorescent in situ hybridization for taxa known to be associated with periodontal diseases. the analyses showed that the fusiform taxa (fusobacter ... | 2004 | 14871191 |
| genetic diversity of leptotrichia and description of leptotrichia goodfellowii sp. nov., leptotrichia hofstadii sp. nov., leptotrichia shahii sp. nov. and leptotrichia wadei sp. nov. | sixty strains of gram-negative, anaerobic, rod-shaped bacteria from human sources initially assigned to leptotrichia buccalis (n=58) and 'leptotrichia pseudobuccalis' (n=2) have been subjected to polyphasic taxonomy. full-length 16s rdna sequencing, dna-dna hybridization, rapd, sds-page of whole-cell proteins, cellular fatty acid analysis and enzymic/biochemical tests supported the establishment of four novel leptotrichia species from this collection, leptotrichia goodfellowii sp. nov. (type str ... | 2004 | 15023979 |
| [analysis of oral microflora early colonized in infants]. | to observe the dynamic changes of oral microflora early colonized in infants. | 2004 | 15190795 |
| differences in the subgingival microbiota of swedish and usa subjects who were periodontally healthy or exhibited minimal periodontal disease. | previous studies have shown differences in the mean proportions of subgingival species in samples from periodontitis subjects in different countries, which may relate to differences in diet, genetics, disease susceptibility and manifestation. the purpose of the present investigation was to determine whether there were differences in the subgingival microbiotas of swedish and american subjects who exhibited periodontal health or minimal periodontal disease. | 2005 | 15642056 |
| leptotrichia buccalis bacteremia in two patients with acute myelogenous leukemia. | leptotrichia buccalis is rarely implicated in systemic disease. we report two patients with clinically significant l. buccalis bacteremia which developed during the neutropenia secondary to chemotherapy. based upon our experience, l. buccalis bacteremia should be considered in certain high-risk immunocompromised patients with mucositis and/or gingivitis. | 2005 | 16701598 |
| leptotrichia buccalis: a rare cause of bacteraemia in non-neutropenic patients. | the anaerobic bacterium, leptotrichia buccalis (lb), belongs to the normal oral flora of humans and is seldom found in clinically significant specimens. however, on rare occasions, lb has been isolated from blood cultures from patients with lesions of the oral mucosa, in particular from patients with neutropenia. over a period of 6 months, lb was isolated from blood cultures in our laboratory from 2 immunocompetent patients. the identification characteristics of lb are described including the ty ... | 2006 | 16857623 |
| anaerobic bacteria cultured from the tongue dorsum of subjects with oral malodor. | the bacteria on the dorsum of the tongue are the most frequent cause of oral malodor; however, the bacterial flora of the tongue has not been well defined. although recent studies have used dna probes to detect the presence of certain periodontal pathogens, cultural studies have been limited because of the complexity of the flora of the tongue dorsum. the purpose of this study was to grow and to identify maximum numbers of capnophylic gram-negative bacilli and anaerobic micro-organisms by cultur ... | 2003 | 16887710 |
| bacterial diversity in aortic aneurysms determined by 16s ribosomal rna gene analysis. | aortic aneurysms are common vascular conditions that cause considerable morbidity and mortality. understanding of the mechanisms involved in the pathogenesis of the condition remains limited. recently, infection has been suggested as possible contributor in the development of the disease. the aim of the present study was to examine aortic aneurysms for the presence of bacterial dna using polymerase chain reaction (pcr) targeting the 16s ribosomal rna (rrna) gene, followed by cloning and sequenci ... | 2006 | 17098542 |
| infection at titanium implants with or without a clinical diagnosis of inflammation. | to assess the microbiota at implants diagnosed with peri-implantitis, implant mucositis, or being clinically healthy. | 2007 | 17517058 |
| the impact of a low-frequency chlorhexidine rinsing schedule on the subgingival microbiota (the teeth clinical trial). | information on the efficacy of chlorhexidine (chx) rinsing on the subgingival microbiota is limited. this study tested if intermittent chx rinsing over 5 years had an impact on the subgingival microbiota. | 2007 | 17760545 |
| evaluation of the microbiota of primary endodontic infections using checkerboard dna-dna hybridization. | the aim of this study was to evaluate the composition of the microbiota of primary endodontic infections in 111 selected cases of single-rooted teeth with necrotic pulp. | 2007 | 17949342 |
| lemierre syndrome caused by leptotrichia buccalis in a neutropenic patient. | | 2008 | 17981066 |
| microbiological evaluation of primary endodontic infections in teeth with and without sinus tract. | to examine the microbiological status of primary endodontic infections in teeth with and without a sinus tract. | 2008 | 18422583 |
| assessment of the microbiota in root canals of human primary teeth by checkerboard dna-dna hybridization. | the purpose of this study was to evaluate in vivo the prevalence of microorganisms in root canals of human primary teeth, by checkerboard dna-dna hybridization. | 2007 | 18477431 |
| does pregnancy have an impact on the subgingival microbiota? | we investigated clinical and subgingival microbiologic changes during pregnancy in 20 consecutive pregnant women > or =18 years not receiving dental care. | 2009 | 19228092 |
| complete genome sequence of leptotrichia buccalis type strain (c-1013-b). | leptotrichia buccalis (robin 1853) trevisan 1879 is the type species of the genus, and is of phylogenetic interest because of its isolated location in the sparsely populated and neither taxonomically nor genomically adequately accessed family 'leptotrichiaceae' within the phylum 'fusobacteria'. species of leptotrichia are large, fusiform, non-motile, non-sporulating rods, which often populate the human oral flora. l. buccalis is anaerobic to aerotolerant, and saccharolytic. here we describe the ... | 2009 | 21304648 |
| metabolism of sugars by genetically diverse species of oral leptotrichia. | leptotrichia buccalis atcc 14201 is a gram-negative, anaerobic rod-shaped bacterium resident in oral biofilm at the tooth surface. the sequenced genome of this organism reveals three contiguous genes at loci: lebu_1525, lebu_1526 and lebu_1527. the translation products of these genes exhibit significant homology with phospho-α-glucosidase (pagl), a regulatory protein (gntr) and a phosphoenol pyruvate-dependent sugar transport protein (eiicb), respectively. in non-oral bacterial species, these ge ... | 2012 | 22230464 |
| leptotrichia buccalis: a novel cause of chorioamnionitis. | intra-amniotic leptotrichia buccalis has not been previously associated with adverse pregnancy outcome. we report a case of chorioamnionitis and pregnancy loss associated with this primarily oral commensal. we review leptotrichia buccalis and other oral commensals that have been identified in cases of intraamniotic infection. | 2015 | 26294950 |
| cytokine and microbial profiles in relation to the clinical outcome following treatment of peri-implantitis. | to study whether cytokine levels and bacterial counts in p atients with peri-implantitis reflect clinical treatment outcome following non-surgical management. | 2016 | 27422156 |
| microbial diversity in persistent root canal infections investigated by checkerboard dna-dna hybridization. | the aim of the present study was to investigate the composition of the root canal microbiota in endodontic failures in order to identify and quantify these microorganisms. | 2014 | 24935532 |