Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| [diagnosis of contact mediastinitis in necrotic phlegmons of the neck]. | 1991 | 1882299 | |
| defective neutrophil function in an insulin-dependent diabetes mellitus patients. a case report. | the objective of this study was to evaluate the polymorphonuclear leukocyte (pmn) function in a poorly controlled adult insulin-dependent diabetic patient (iddm) with severe recurrent periodontitis, while describing the microbiological and clinical findings. chemotaxis, superoxide production, and phagocytosis and killing of porphyromonas (bacteroides) gingivalis by the iddm pmn were evaluated 1 week before treatment relative to a healthy, matched control. these analyses revealed a significant (p ... | 1991 | 1651389 |
| relation of baseline microbial parameters to future periodontal attachment loss. | the relationship between the level of subgingival species at baseline and subsequent attachment loss in a subject was examined. 38 subjects (14-71 years) with prior evidence of periodontal destruction were monitored 2x for pocket depth and attachment level at 6 sites per tooth at baseline and 2 months. a subject was considered to exhibit new attachment loss if 1 or more sites increased 3 mm or more in attachment level in 2 months. subgingival plaque samples were taken at the baseline visit from ... | 1991 | 1661304 |
| in-vitro activity of temafloxacin against anaerobic bacteria: a comparative study. | the antimicrobial activity of temafloxacin for 328 anaerobic bacteria was determined and compared to that of cefotetan, cefoxitin, ciprofloxacin and metronidazole. the wadsworth agar dilution technique using brucella-lysed sheep blood agar was used throughout. at the recommended breakpoint concentration 4 mg/l, temafloxacin inhibited 60/62 (97%) of the isolates of bacteroides fragilis and 82/87 (94%) of the isolates of other species of the b. fragilis group. ninety-six percent of the 24 isolates ... | 1991 | 1664827 |
| [anaerobes in infected canals: a preliminary study]. | anaerobes of 17 infected canals with periapical periodontitis were studied. most of root flora were not only anaerobes but also aerobes. anaerobes were predominant in chronic periapical periodontitis. major anaerobes isolated from canals were peptostreptococcus, b. melaninogenicus and b. oralis. the chi-square results indicated that the peptostreptococcus were significantly related to apical radiolucency and b. melaninogenicus were significantly related to percussion or foul smell. animal experi ... | 1991 | 1674465 |
| percutaneous drainage of lung abscess in a malnourished child. | 1991 | 1676504 | |
| nosocomial infections of ocular conjunctiva in newborns delivered by cesarian section. | colonization of the ocular conjunctiva in newborns delivered by cesarian section occurs usually within the first day of life. we have studied the flora of the ocular conjunctiva at birth, from 19 newborns delivered by cesarian section, coming from two different maternity hospitals. ocular conjunctiva cultures yielded the main predominant flora in both maternity hospitals considered. the most common genus of this flora are: staphylococcus, corynebacterium and propionibacterium acnes. peptostrepto ... | 1991 | 1870845 |
| [clinical study on cefteram pivoxil in asymptomatic bacteriospermia]. | in order to understand the clinical efficacy of cefteram pivoxil (cftm) in the treatment of asymptomatic bacteriospermia, the following studies were performed. 1. concentrations of cftm in the semen after oral administration of 200 mg to normal healthy adults (n = 5) reached a maximum level of 0.66 +/- 0.04 microgram/ml in 5 hours after the administration, then decreased rapidly, and averaged 0.15 +/- 0.03 micrograms at 7 hours after administration. 2. activities of cftm, cefaclor (ccl) and lome ... | 1991 | 1880933 |
| [acute subdural empyema due to peptostreptococcus]. | a very rare case of acute subdural empyema due to peptostreptococcus was reported. a 11-year-old-girl was admitted to our hospital with high grade fever, unconsciousness and rt hemiparesis. ct scans showed the mass effect caused by the subdural empyema over the left frontotemporal region. subdural empyema was evacuated by the craniotomy. peptostreptococcus was found in the pus obtained during the operation. however, ct scans 10 days after the operation revealed another subdural empyema in the le ... | 1991 | 1681835 |
| formation of nitrogen-containing metabolites from geniposide and gardenoside by human intestinal bacteria. | during the course of our studies on the metabolism of iridoid glycosides by human intestinal bacteria, we found that geniposide (1) and gardenoside (4) were transformed to new nitrogen-containing compounds, genipinine (3) and gardenine (6), respectively, along with the known aglycones. although the amounts of new metabolites were somewhat lower than those of the aglycones, they were quantitatively analyzed by means of liquid chromatography/mass spectrometry (lc/ms). of 25 strains of human intest ... | 1991 | 1818345 |
| native valve infective endocarditis in adults--analysis of 32 consecutive cases over a ten-year period from 1980 to 1989. | thirty-two patients with native valve infective endocarditis who presented over a 10-year period at our hospital were analyzed retrospectively. the presenting symptom was a persistent fever in 22 patients. in 30 patients, the new york heart association functional class was less than ii before the development of endocarditis. blood cultures were positive on all occasions in 24 out of 29 culture-positive patients. all of the viridans streptococci, accounting for 79% of the isolated pathogens, were ... | 1991 | 1829492 |
| clinical and microbiological findings on newly inserted hydroxyapatite-coated and pure titanium human dental implants. | the clinical and microbiologic features of 30 hydroxyapatite-coated root-form endosseous dental implants (tri-stage) were compared to 10 similar pure titanium implants without hydroxyapatite coatings. in 7 of 9 partially edentulous patients studied, pure titanium fixtures were placed adjacent to hydroxyapatite-coated implants. implants in the maxilla were submerged beneath mucosal tissues after implant placement for a minimum of 6 months, and in the mandible for at least 4 months. all patients w ... | 1991 | 1843465 |
| microbial differences in 2 clinically distinct types of failures of osseointegrated implants. | the microflora associated with osseointegrated implants suspected of failing from infection or trauma were evaluated. of 75 patients examined, 11 demonstrated failing fixtures. 22 of 48 fixtures failed in 6 fully edentulous patients and 10 of 34 failed in 5 partially edentulous patients. the etiology of failure was attributed to infection if there was bleeding, suppuration, pain, high plaque and gingival indices and granulomatous tissue upon surgical removal. traumatic etiology was suspected in ... | 1991 | 1843467 |
| bacteriological investigations of clinical mastitis in heifers in sweden. | bacterial analyses were carried out of 2069 udder secretions, isolated from 1481 heifers with mastitis in eight veterinary districts in sweden. streptococci, e.g. streptococcus dysgalactiae and str. uberis, dominated the bacterial flora, being isolated from 34.4 and 19.5% respectively of heifers with clinical mastitis occurring from puberty up to 14 d post partum. bacterial species generally regarded as important pathogens in the summer mastitis complex, e.g. actinomyces pyogenes, stuart-schwan ... | 1991 | 1856352 |
| antibiosis between bacteria isolated from the vagina of women with and without signs of bacterial vaginosis. | lactobacilli from women with and without bacterial vaginosis (bv) were tested for h2o2 production. thirty-seven (79%) of the 47 strains of lactobacilli isolated from the women without bv produced h2o2, while only nine (23%) of the 39 strains of lactobacilli obtained from women with bv did so. five of 20 h2o2-producing and two of 26 non-producing strains of lactobacillus exhibited antibiosis against four of 12 strains of peptostreptococci and two of 10 strains of mobiluncus spp. none of a further ... | 1991 | 1859646 |
| the importance of positive bacterial cultures of specimens obtained during clean orthopaedic operations. | microbiological cultures of specimens of tissue and of fluids from the wound in forty patients who had had consecutive clean, elective orthopaedic operations (excluding total joint replacements) and had not received antibiotics preoperatively were analyzed. of the forty patients, twenty-three (58 per cent) had a positive culture on at least one of the media that were used and seventeen (43 per cent) had negative cultures. of the forty specimens that were obtained from swabbing of the wound, eigh ... | 1991 | 1890121 |
| chronic conjunctivitis caused by oral anaerobes and effectively treated with systemic metronidazole plus amoxicillin. | in this study, we report on a case of refractory, unilateral anaerobic conjunctivitis. the predominant anaerobic flora consisted of prevotella intermedia (formerly bacteroides intermedius) and peptostreptococcus micros. by using the technique of restriction endonuclease fingerprinting of genomic dna, it was shown that the p. intermedia likely originated from the oral cavity. topically applied antibiotics had failed to suppress the infection in the past. successful treatment was achieved after sy ... | 1991 | 1890173 |
| oral associated bacterial infection in horses: studies on the normal anaerobic flora from the pharyngeal tonsillar surface and its association with lower respiratory tract and paraoral infections. | two hundred and seventy bacterial isolates were obtained from the pharyngeal tonsillar surface of 12 normal horses and 98 obligatory anaerobic bacteria were characterised. of these, 57 isolates belonging to 7 genera (peptostreptococcus (1); eubacterium (9); clostridium (6); veillonella (6); megasphera (1); bacteroides (28); fusobacterium (6)) were identified, and 16 of these were identified to species level (p. anaerobius (1); e. fossor (9); c. villosum (1); b. fragilis (1); b. tectum (2); b. he ... | 1991 | 2031304 |
| [2 cases of rhinogenic intracranial complications with normal rhinoscopy]. | two cases of non-postoperative rhinogenic intracranial complications are reported: patient 1 was a 25-year-old female with meningitis and right orbital phlegmon, and patient 2 was a 21-year-old male with a brain abscess. main symptoms in these patients were meningeal signs and high fever, and intranasal findings were normal in both patients. the diagnosis was not made until computed tomography revealed paranasal abnormalities. soon after surgical intervention and treatment with large doses of an ... | 1991 | 1896694 |
| purification and characterization of nadp(+)-dependent 5,10-methylenetetrahydrofolate dehydrogenase from peptostreptococcus productus marburg. | the 5,10-methylenetetrahydrofolate dehydrogenase of heterotrophically grown peptostreptococcus productus marburg was purified to apparent homogeneity. the purified enzyme catalyzed the reversible oxidation of methylenetetrahydrofolate with nadp+ as the electron acceptor at a specific activity of 627 u/mg of protein. the km values for methylenetetrahydrofolate and for nadp+ were 27 and 113 microm, respectively. the enzyme, which lacked 5,10-methenyltetrahydrofolate cyclohydrolase activity, was in ... | 1991 | 1899860 |
| microbial aspects of failing osseointegrated dental implants in humans. | the subgingival microflora of 18 failing implants were examined for pathogenic periodontal microorganisms. peptostreptococcus micros was recovered from 6 failing implants, wolinella recta from 6, fusobacterium species from 5, candida albicans from 5, and bacteroides intermedius from 4. enteric rods or pseudomonads constituted a significant part of the microflora in 5 failing implants. actinobacillus actinomycetemcomitans, nonpigmented bacteroides species, capnocytophage species, and staphylococc ... | 1991 | 1906537 |
| [hemolytic jaundice in anaerobic bacteremia. a report of a case resolved surgically]. | the authors report a case of haemolytic jaundice caused by anaerobic bacteria arising from an abdominal abscess. this is undoubtedly a rare pathology but, when occurring, the resolution may be achieved by surgical therapy. | 1991 | 1911074 |
| [randomized study of amoxicillin-clavulanic acid versus amoxicillin-metronidazole combinations in pyogenic infections of dental origin]. | thirty patients, without any valve defect, cardiac malformation or previous antibiotic administration and presenting dental infections, have been treated either with amoxycillin-clavulanic acid or amoxycillin and metronidazole. aerobic and anaerobic bacteria have been isolated. these infections were due to mixed flora. nearly one half of anaerobes were peptostreptococcus, s. milleri and s. sanguis being predominant among aerobes. the species identified were those found in the mouth in the absenc ... | 1991 | 1881695 |
| suitability of the broth-disk elution test for evaluating susceptibility of obligate anaerobes to trimethoprim-sulfonamides. | species of anaerobic bacteria isolated from clinical veterinary specimens were tested for susceptibility to trimethoprim-sulfonamides by the broth-disk elution technique. three different media were used for each organism: prereduced anaerobically sterilized (pras) brain-heart infusion broth (bhi), thioglycollate broth, and a semidefined pras medium. susceptibility results from these media were compared with those determined by interpreting the minimal inhibitory concentration obtained using an a ... | 1991 | 1911991 |
| bacteriologic monitoring of periodontal diseases: cultural, enzymatic, immunologic, and nucleic acid studies. | evidence supporting the bacteriologic etiology of periodontal diseases has led investigators to monitor the microbiologic species associated with each disease. the type of study performed has evolved at different levels over the years and is predominantly influenced by available technologies. as the technology has advanced, so too have attempts at monitoring specific microorganisms. the ultimate goal in most research efforts on clinical bacteriologic monitoring of the periodontal diseases has be ... | 1991 | 1912631 |
| selection, expression, and nucleotide sequencing of the glutamate dehydrogenase gene of peptostreptococcus asaccharolyticus. | the gene for the catabolic nad-linked glutamate dehydrogenase of peptostreptococcus asaccharolyticus was cloned by selection of escherichia coli for complementation of a biosynthetic defect. cloned fragments containing the gene and the p. asaccharolyticus transcription and translation signals are very highly expressed in e. coli. the nucleotide sequence of the cloned gene was determined. it codes for a polypeptide of 421 amino acids, the sequence of which is similar to those of the nadp-acceptin ... | 1991 | 1917850 |
| protein-kinase-c-independent activation of arachidonate release and prostaglandin e2 formation in macrophages interacting with certain bacteria. | certain bacterial species, of which we selected fusobacterium nucleatum, gardnerella vaginalis, peptostreptococcus anaerobius and propionibacterium acnes, were found to induce release of arachidonic acid in a dose- and time-dependent manner in mouse macrophages. the release of arachidonic acid showed a characteristic lag period of approximately 10 min and was accompanied by selective transformation into prostaglandin e2. bacteria killed by various methods caused a similar response, indicating th ... | 1991 | 1915341 |
| reactivity of igg from explant cultures of periapical lesions with implicated microorganisms. | the presence of igg in periapical inflammatory lesions suggests that immune responses participate in the disease process. the purpose of this investigation was to study the reactivity of igg from the supernatant fluids of explant cultures of periapical lesions with microorganisms implicated in infections of endodontic origin. ninety periapical lesions that had been contiguous with the apex of a root were removed and maintained in explant cultures. a dot-enzyme-linked immunosorbent assay (dot-eli ... | 1991 | 1940739 |
| specificity of antibodies present in human periapical lesions. | various classes of immunoglobulins have been found in human periapical lesions. the specificity of secreted antibodies against antigens egressing from the root canal system has yet to be thoroughly investigated. the purpose of this study was to test the specificity of antibodies present in human periapical lesions. human periapical biopsies were removed and cultured as organ culture explants. antibodies present in the lesions were extracted in the cell culture fluids. a modified enzyme-linked im ... | 1991 | 1940740 |
| microbiologic causes and neonatal outcomes associated with chorioamnion infection. | chorioamnion infection is associated with histologic chorioamnionitis and prematurity, but the specific chorioamnion microorganisms associated with histologic chorioamnionitis, prematurity, and poor neonatal outcome have not been identified. bacteria were recovered from the chorioamnion cultures of 32% of 112 placentas delivered at less than or equal to 34 weeks' gestation and from 19% of 156 placentas delivered at greater than 34 weeks' gestation (odds ratio 2.1; 95% confidence interval 1.1 to ... | 1991 | 1951562 |
| aerobic and anaerobic microbiology of acute suppurative parotitis. | aspirates of pus from acute suppurative parotitis were studied for aerobic and anaerobic bacteria. bacterial growth was present in 23 specimens. a total of 36 bacterial isolates (20 anaerobic and 16 aerobic and facultative) were recovered, accounting for 1.6 isolates per specimen (0.9 anaerobic and 0.7 aerobic and facultative). anaerobic bacteria only were present in 10 (43%) patients, aerobic and facultatives in 10 (43%), and mixed aerobic and anaerobic flora in 3 (13%). single bacterial isolat ... | 1991 | 1992268 |
| effects of propicillin on mixed continuous cultures of periodontal bacteria. | experiments were designed to test the antibiotic (1-phenoxypropyl)penicillin (propicillin) against a complex microflora of periodontal bacteria. this was accomplished by using a continuously growing mixed culture that was obtained by enrichment of periodontal plaque in human serum. peptostreptococcus species, prevotella intermedia, lactobacillus, catenaforme, and streptococcus species were dominant members of the enrichment culture. none of the strains isolated from the enrichment culture exhibi ... | 1991 | 1952836 |
| aerobic and anaerobic microbiology of peritonsillar abscess. | thirty-four aspirates of pus from peritonsillar abscesses that were studied for aerobic and anaerobic bacteria showed bacterial growth. a total 107 bacterial isolates (58 anaerobic and 49 aerobic and facultative) were recovered, accounting for 3.1 isolates per specimen (1.7 anaerobic and 1.4 aerobic and facultatives). anaerobic bacteria only were present in 6 (18%) patients, aerobic and facultatives in 2 (6%), and mixed aerobic and anaerobic flora in 26 (76%). single bacterial isolates were reco ... | 1991 | 2000017 |
| [strict anaerobic bacteria: comparative study of various beta-lactam antibiotics in combination with tazobactam or sulbactam]. | the minimal inhibitory concentrations of piperacillin (pip) or cefotaxime (ctx) alone or in combination with tazobactam (taz) were determined against 168 anaerobes. all the strains were inhibited by pip + taz, but certain strains resistant to ctx + taz were found among b. fragilis, eubacterium and peptostreptococcus. the second investigations included 30 strains of bacteroides fragilis. concentrations of 2, 4 and 8 mg/l of taz and sulbactam (sul) were combined with piperacillin or cefotaxime. th ... | 1991 | 1652729 |
| subgingival microflora of advanced periodontitis in the dominican republic. | a study of the predominant subgingival microflora was carried out in 24 periodontitis patients, 18 to 60 years of age, in santo domingo, dominican republic. paper point sampling, transport in vmga iii, and conventional microbiological techniques were utilized. direct microscopic examination revealed that cocci and nonmotile organisms made up 85% of the total organisms and spirochetes as little as 3%. nonselective culturing showed gram-negative organisms to constitute 53% of total isolates. fusob ... | 1991 | 1658290 |
| tetracycline resistance in peptostreptococcus species. | of 15 peptostreptococcus sp. strains isolated between 1975 and 1984, 13 hybridized with the tet k, tet m, or tet o determinant. a donor peptostreptococcus anaerobius strain carrying the three determinants could transfer tet m to p. anaerobius and fusobacterium nucleatum recipients but not to an enterococcus faecalis recipient, while neither tet k nor tet o was transferred. | 1991 | 1929341 |
| the partial amino acid sequence of the nad(+)-dependent glutamate dehydrogenase of clostridium symbiosum: implications for the evolution and structural basis of coenzyme specificity. | the amino acid sequence is reported for cnbr and tryptic peptide fragments of the nad(+)-dependent glutamate dehydrogenase of clostridium symbiosum. together with the n-terminal sequence, these make up about 75% of the total sequence. the sequence shows extensive similarity with that of the nadp(+)-dependent glutamate dehydrogenase of escherichia coli (52% identical residues out of the 332 compared) allowing confident placing of the peptide fragments within the overall sequence. this demonstrate ... | 1991 | 1954226 |
| microbiological study of hiv-related periodontitis. | the subgingival microbiota in 14 persons with hiv-periodontitis was examined. subgingival plaque samples were collected with paper points, transported in vmga iii, and plated on anaerobic enriched brucella blood agar and various selective media. hiv-periodontitis sites revealed actinobacillus actinomycetemcomitans, wolinella recta, peptostreptococcus micros, and bacteroides intermedius, each averaging 7% to 16% of the cultivable subgingival flora in positive patients. high levels of spirochetes ... | 1991 | 2002434 |
| comparative in vitro activity of cefpodoxime against anaerobes other than bacteroides fragilis. | to assess the in vitro activity of cefpodoxime against anaerobic respiratory tract and oropharyngeal pathogens 77 strains belonging to 18 gram-negative and 7 gram-positive species were studied by means of agar dilution tests. for comparison cefuroxime, amoxicillin, amoxicillin + clavulanic acid and clindamycin were also tested. cefpodoxime was found to be active at concentrations of less than or equal to 0.125 mg/l against prevotella oralis, prevotella buccalis, prevotella bivia, porphyromonas a ... | 1991 | 1800380 |
| normal vaginal aerobic and anaerobic bacterial flora of the rhesus macaque (macaca mulatta). | the most common bacterial species isolated from the vaginas of 37 healthy rhesus macaques were streptococcus viridans, coagulase negative staphylococcus, mobiluncus curtisii ss. curtisii, corynebacterium renale-like organisms, peptostreptococcus anaerobius, gardnerella-like organisms, and other corynebacterium species. the vaginal flora of the rhesus macaque differs from that previously reported for five other primate species. a two-year retrospective review of clinical cases of vaginitis and me ... | 1991 | 1803013 |
| [effects of antibiotics and anti-bacterial components of preparations for local treatment of suppurative wounds on pathogens of odonto- genic infections]. | the results of identification and sensitivity assay of 156 strains of pathogens causing odontogenic infections are presented. in the sensitivity assay antibacterial drugs were used. 42.3 percent of the strains were obligate anaerobes belonging to bacteroides, fusobacterium, peptococcus, peptostreptococcus, veillonella and actinomyces. significant differences in the microbial sensitivity to the drugs used for general and local therapy were detected. there was observed high sensitivity of the obli ... | 1991 | 1805697 |
| molecular fingerprinting of isolates of the genus peptostreptococcus using rrna genes from escherichia coli and p. anaerobius. | restriction fragment length polymorphisms (rflps) of rrna genes were evaluated as a tool for intra- and interspecies differentiation of peptostreptococcus isolates. rflps from a collection of 20 clinical isolates and five atcc strains representing five peptostreptococcus spp. (p. anaerobius, p. asaccharolyticus, p. magnus, p. micros and p. prevotii) were obtained by hybridization of southern blots of hindiii- or ecori-digested genomic dna with three probes: probe a, a 0.98 kb hindiii fragment wi ... | 1991 | 1717639 |
| metabolism of 1,4-dinitro-2-methylpyrrole, a mutagen formed by a sorbic acid-nitrite reaction, by intestinal bacteria. | 1,4-dinitro-2-methylpyrrole (dnmp), a mutagenic product formed by the interaction of two common food additives, sorbic acid and sodium nitrite, was transformed to 1-nitro-2-methyl-4-aminopyrrole (nmap) by human fecal mixtures and various intestinal bacterial strains. under anaerobic conditions the cell suspensions of actinomyces, bacteroides, clostridium, eubacterium, fusobacterium, and peptostreptococcus spp. demonstrated the nitroreduction activity. under aerobic conditions, only actinomyces a ... | 1991 | 2022195 |
| toothbrushing and transient bacteremia in patients undergoing orthodontic treatment. | this study was made to determine whether and to what extent bacteremia occurred after toothbrushing in patients undergoing orthodontic treatment with fixed appliances. twenty patients were selected, all with negative history of heart or hematologic disorders. these patients had not taken antibiotics or had a history of a cold in the previous 30 days. blood samples of 20 ml were drawn before and 5 minutes after brushing. the immune status of the patients was tested by measurement of isohemaggluti ... | 1991 | 2028936 |
| purification and properties of an iron-sulfur-containing and pyridoxal-phosphate-independent l-serine dehydratase from peptostreptococcus asaccharolyticus. | l-serine dehydratase with a specific activity of 15 nkat/mg protein was present in the anaerobic eubacterium peptostreptococcus asaccharolyticus grown either on l-glutamate or l-serine. the enzyme was highly specific for l-serine with the lowest km = 0.8 mm ever reported for an l-serine dehydratase. l-threonine (km = 22 mm) was the only other substrate. v/km for l-serine was 500 times higher than that for l-threonine. l-cysteine was the best inhibitor (ki = 0.3 mm, competitive towards l-serine). ... | 1991 | 2065681 |
| microbiological studies of decubitus ulcers in children. | specimens from 58 children with decubitus ulcers were cultured for aerobic and anaerobic bacteria. aerobic bacteria only were present in 29 (50%) ulcers, anaerobic bacteria only were recovered in 5 (9%), and mixed aerobic and anaerobic flora were present in 24 (41%). a total of 132 isolates (79 aerobes, 53 anaerobes) were recovered, an average of 2.3 isolates per specimen (1.4 aerobes, 0.9 anaerobes). the smallest number of isolates was recovered in ulcers of the skull (1.7 per site), and the hi ... | 1991 | 2023086 |
| the laboratory identification of gram-positive anaerobic cocci. | a collection of 256 clinical strains and 40 reference strains of gram-positive anaerobic cocci (gpac) was studied, to characterise the recognised species more fully and to define groups of strains which might correspond to previously undescribed species. the methods used were: gas-liquid chromatography (glc) for the detection of volatile fatty acids (vfas); determination of the pre-formed enzyme profile with a commercially available kit, atb 32a; microscopic appearance; colonial morphology; and ... | 1991 | 2030504 |
| adhesion of 1-carbon utilizing bacteria to polymeric surfaces. | 1991 | 2037198 | |
| [antibacterial activity of ciprofloxacin against fresh clinical isolates from superficial suppurative foci]. | the minimum inhibitory concentrations (mics) of 5 drugs (ciprofloxacin (cpfx), and 4 drugs used as standard) were determined to investigate antibacterial potencies of cpfx against bacterial strains isolated in 1989 from superficial suppurative foci. the clinical isolates tested included 375 strains from 11 aerobic bacterial species, and 50 strains from 2 anerobic bacterial genera (group) for a total of 425 isolates. interpreting mic level distributions of these drugs as the expression of antibac ... | 1991 | 2041153 |
| vaginal bacteroides species are associated with an increased rate of preterm delivery among women in preterm labor. | the relationship of high concentrations of vaginal microorganisms with an increased rate of preterm delivery (less than or equal to 34 weeks) among women in preterm labor was evaluated. quantitative vaginal cultures were obtained from 211 women in preterm labor between gestational ages of 22 and 34 completed weeks. preterm delivery occurred in 139 (66%). the rate of preterm delivery was determined by cox proportional hazards models. women with greater than 10(7) cfu/ml of vaginal fluid of facult ... | 1991 | 2056221 |
| the differentiation of asaccharolytic anaerobic gram-positive cocci by protein electrophoresis. | conventional biochemical and antibiotic sensitivity tests were used to allocate 87 clinical isolates of anaerobic gram-positive cocci to currently recognised species, in comparison with type and other authentic reference strains. whole-cell protein electrophoresis was then performed with extracts of each strain. allowing for difficulties of standardisation, it was possible to allocate most of the organisms to species-related groups on the basis of protein patterns. organisms identified conventio ... | 1991 | 2056518 |
| pyoderma caused by peptostreptococcus tetradius in a pup. | pyoderma caused by peptostreptococcus tetradius in a pup was successfully treated with cefadroxil. although this bacterium is rarely found in veterinary medicine, it is a known pathogen in human beings and should be considered as a potential causative agent in pyodermas in which anaerobes are suspected. | 1991 | 2061185 |
| chronic prosthetic vascular graft infection visualized with technetium-99m-hexamethylpropyleneamine oxime-labeled leukocytes. | technetium-99m-hmpao labeled leukocytes demonstrated chronic femoro-femoral prosthetic vascular graft infection several times during an 18-mo period in a 77-yr-old man. the intensity and distribution of the uptake in the graft were fluctuating in different imaging occasions possibly indicating the strength and location of the infection. gallium-67-citrate imaging showed negative results twice. the reason for negative 67ga results remained obscure. the infected graft was removed and the patient d ... | 1991 | 2066799 |
| polysaccharides from peptostreptococcus anaerobius and structure of the species-specific antigen. | the cell-envelope antigens of peptostreptococcus anaerobius were extracted from intact cells by autoclave or alkaline treatment. the purified species-specific antigen (g) was identified among several polysaccharides obtained from the extracts by successive treatments with ribonuclease and pronase followed by ion-exchange and gel-filtration chromatography. g was investigated by 13c- and 31p-n.m.r. spectroscopy, titrimetry, elemental analysis, and gas-liquid chromatography. oxidation of g with nai ... | 1990 | 2076510 |
| an in vitro method to study the adherence of bacteria to saliva-treated tooth enamel sections. | an in vitro bacterial adherence assay which employed human tooth enamel sections precoated with saliva and an epifluorescent staining technique with acridine orange was developed. the assay was used to study the adherence properties of fresh and type strains of the following oral bacterial species: bacteroides gingivalis, bacteroides intermedius, capnocytophaga species, haemophilus aphrophilus, actinobacillus actinomycetemcomitans, peptostreptococcus species, veillonella species, actinomyces isr ... | 1990 | 2087341 |
| etiology and treatment of post-cesarean-section endometritis after cephalosporin prophylaxis. | to describe the microbiologic etiology of post-cesarean endometritis developing after perioperative cephalosporin prophylaxis, endometrial samples were obtained from 27 women with a triple-lumen catheter. the women were assigned in a double-blind, randomized fashion to receive either ticarcillin/clavulanate, 3.1 g, or cefoxitin, 2 g, administered every six hours, until the clinical signs of infection resolved. a total of 149 microorganisms (84 facultative and 65 obligate anaerobes) were recovere ... | 1990 | 2181119 |
| isolation and identification of anaerobic bacteria from ovine foot rot in spain. | a microbiological study was made of 125 merino sheep showing clinical signs of foot rot. a total of 435 strictly anaerobic strains were isolated, belonging to the following genera: bacteroides, peptostreptococcus, tissierella, fusobacterium, megasphaera, eubacterium, acidaminococcus, clostridium, peptococcus and propionibacterium. of the 35 species obtained, the following were found in more than 10 per cent of animals sampled: bacteroides nodosus, b putredinis, b buccae, b ruminicola subspecies ... | 1990 | 2236925 |
| purification of nadph-dependent electron-transferring flavoproteins and n-terminal protein sequence data of dihydrolipoamide dehydrogenases from anaerobic, glycine-utilizing bacteria. | three electron-transferring flavoproteins were purified to homogeneity from anaerobic, amino acid-utilizing bacteria (bacterium w6, clostridium sporogenes, and clostridium sticklandii), characterized, and compared with the dihydrolipoamide dehydrogenase of eubacterium acidaminophilum. all the proteins were found to be dimers consisting of two identical subunits with a subunit mr of about 35,000 and to contain about 1 mol of flavin adenine dinucleotide per subunit. spectra of the oxidized protein ... | 1990 | 2318809 |
| relationship of bacteriologic characteristics to semen indices in men attending an infertility clinic. | bacteria can be isolated from most seminal fluid samples, but the significance of these microorganisms is uncertain because most men lack symptoms associated with bacterial infection of the reproductive tract. we obtained semen samples from 37 men attending a special infertility clinic and assessed the relationship between seminal fluid microorganisms and seminal fluid analysis including sperm motility, morphology, and concentration; the numbers of polymorphonuclear leukocytes and other white bl ... | 1990 | 2325963 |
| [the immunological diagnosis of peptostreptococcal infection]. | the work deals with different methods for the diagnosis of anaerobic streptococcal infection, experimentally tested and clinically approved in the examination of children with acute pneumonia. the passive hemagglutination test, the immune rosette formation test and the specific lymphocyte blastogenesis test were used for diagnosis. as sensitin and antigen, the preparation of the peptostreptococcal bacterial mass was used. the diagnostic titer of antibodies to anaerobic streptococci was 1:160. a ... | 1990 | 2330780 |
| the microbiology of chronic sinus disease in children with respiratory allergy. | chronic maxillary sinusitis is common in children with respiratory allergy and is associated with increased morbidity. the bacteriology of chronic sinus disease in these children has not been adequately evaluated. between may 1987 and january 1988, 12 children (aged 3 to 9 years), all with documented respiratory allergy and chronic respiratory symptoms consistent with chronic sinusitis (greater than 30 days), were fully evaluated. history, physical examination, complete blood count, nasal smear, ... | 1990 | 2355153 |
| [anaerobic asporogenous infection in patients with postoperative empyema]. | the results of treatment of 38 patients with postoperative pleural empyema caused by anaerobic asporogenous infection were summarized. the factors contributing to the development of anaerobic asporogenous infection, peculiarities of the clinical picture, diagnosis and treatment were revealed, the measures for prophylaxis were outlined. the clinical effectiveness was achieved in 92.1% of the patients with lethality of 2.6%. | 1990 | 2280516 |
| purification and comparative studies of dihydrolipoamide dehydrogenases from the anaerobic, glycine-utilizing bacteria peptostreptococcus glycinophilus, clostridium cylindrosporum, and clostridium sporogenes. | three different dihydrolipoamide dehydrogenases were purified to homogenity from the anaerobic glycine-utilizing bacteria clostridium cylindrosporum, clostridium sporogenes, and peptostreptococcus glycinophilus, and their basic properties were determined. the enzyme isolated from p. glycinophilus showed the properties typical of dihydrolipoamide dehydrogenases: it was a dimer with a subunit molecular mass of 53,000 and contained 1 mol of flavin adenine dinucleotide and 2 redox-active sulfhydryl ... | 1990 | 2294086 |
| late infection after total hip replacement, caused by an oral organism after dental manipulation. a case report. | 1990 | 2295660 | |
| bacterial vaginosis as a risk factor for post-cesarean endometritis. | bacterial species associated with bacterial vaginosis have been isolated more frequently from endometrial cultures of patients with postpartum endometritis than expected from the prevalence of bacterial vaginosis among pregnant women. to further assess the association between bacterial vaginosis and postpartum endometritis, vaginal gram smears were obtained from women admitted for delivery. vaginal smears of women delivered by cesarean were scored as normal or as indicating bacterial vaginosis. ... | 1990 | 2296423 |
| anaerobic bacteria and bacterial infections: perspectives on treatment and resistance in italy. | results of laboratory tests of 2,000 samples obtained from 1984 to 1987 from patients with suspected anaerobic infections and the clinical experience of these patients are reported. of these samples, 395 were positive for anaerobes; 36.5% of these 395 samples contained single organisms, and 63.5% contained a mixture of anaerobes and aerobes. abdominal infections were the infections most frequently caused by anaerobes. the bacteroides fragilis group and strains of peptostreptococcus were the micr ... | 1990 | 2305181 |
| clinical, pathologic, and microbiologic findings of foot abscess in neonatal pigs. | a longitudinal study was undertaken in a swine herd with an ever-present problem of foot abscess in suckling pigs reared on a woven-wire floor. of 3,322 4-day-old pigs, 199 (6%) developed abscess lesions involving claws and accessory digits before weaning. lesions were first detected in 4-day-old pigs; median and mean ages at onset were 10 and 11.3 days, respectively. at first detection, most pigs had only a single claw affected, but 39 pigs had at least 2 claws with abscesses. hind limbs had mo ... | 1990 | 2351598 |
| cephalexin concentrations in human serum, gingiva, and mandibular bone following a single oral administration. | 1. cephalexin concentrations in human serum, gingiva, and mandibular bone after a single oral administration of cephalexin (500 mg) were measured by the paper disc method. 2. the peak times of serum, gingiva, and mandibular bone were approximately 90, 120 and 120 min, respectively. 3. the peak concentrations of serum, gingiva, and mandibular bone were 10.58 micrograms/ml, 5.57 micrograms/g and 2.12 micrograms/g, respectively. 4. the concentration ratio of gingiva/serum and mandibular bone/serum ... | 1990 | 2276582 |
| [effect of helium-neon-laser radiation on microbes]. | in a well-defined in-vitro experiment the effects of a he-ne-laser of 6 mw output on some dominating microbes in the oral cavity were studied by using a scanning electron microscope. no changes on the surface in the irradiated colonies could be seen even after an exposition lasting for 60 minutes (continuous or pulsated wave). therefore an antibacterial effect of softlaser-irradiation sometimes described in literature in questionable. | 1990 | 2270558 |
| clindamycin versus ampicillin in the treatment of odontogenic infections. | the subjects were 106 patients, aged 14 to 70 years, with acute facial or oral abscesses originating from an odontogenic source. they were randomly assigned to receive 150 mg of clindamycin or 250 mg of ampicillin orally four times daily for seven days. after seven days of treatment, the infections were eradicated in 36 of the 52 clindamycin-treated patients and in 42 of the 54 ampicillin-treated patients, and improved in 16 and 11, respectively. one of the ampicillin group was a treatment failu ... | 1990 | 2379229 |
| the microbial flora from root canals and periodontal pockets of non-vital teeth associated with advanced periodontitis. | microflora from root canals and periodontal pockets of periodontally affected teeth were compared in order to elucidate the as yet unknown relationship between pulpal and periodontal disease. caries-free teeth affected with advanced periodontitis and diagnosed as clinically dead by electric pulp testing were selected. the root canals and periodontal pockets were sampled, and the bacterial flora examined by both culture and interference microscopy. the results indicated that the aerobe/anaerobe r ... | 1990 | 2391182 |
| bacterial vaginosis and trichomoniasis vaginitis are risk factors for cuff cellulitis after abdominal hysterectomy. | to assess the relationship between either bacterial vaginosis or trichomoniasis vaginitis and posthysterectomy infection, preoperative evaluation of the vaginal secretions was performed in 161 women undergoing abdominal hysterectomy. thirty-two patients (19.9%) and 27 patients (16.8%), respectively, met the diagnostic criteria for bacterial vaginosis and trichomoniasis vaginitis. patients with either bacterial vaginosis or trichomoniasis vaginitis were more likely than control subjects to have c ... | 1990 | 2403128 |
| biliary excretion of glutathione conjugates of 4,5-epoxy-4,5-dihydro-1- nitropyrene and 9,10-epoxy-9,10-dihydro-1-nitropyrene in rats administered 1-nitropyrene orally and their further metabolism in the intestinal tract. | 1-nitropyrene (1-np), a mutagenic and carcinogenic substance that occurs in the environment, is metabolized by reductive and oxidative pathways. 4,5-epoxy,4,5-dihydro-1-np (1-np 4,5-oxide) and 9,10-epoxy-9,10-dihydro-1-np (1-np 9,10-oxide) are oxidatively activated metabolites of 1-np, and react with glutathione. hplc analysis of biliary metabolites from rats administered [3h]1-np orally showed the presence of glutathione conjugates of 1-np 4,5-oxide and 1-np 9,10-oxide and their metabolites, cy ... | 1990 | 2387025 |
| the bacteriology of gangrenous and perforated appendicitis--revisited. | by using optimum sampling, transport, and culture techniques in patients with gangrenous or perforated appendicitis, we recovered than has previously been reported. thirty patients older than 12 years with histologically documented gangrenous or perforated appendicitis had peritoneal fluid, appendiceal tissue, and abscess contents (if present) cultured. appendiceal tissue was obtained so as to exclude the lumen. a total of 223 anaerobes and 82 aerobic or faculatative bacteria were recovered, an ... | 1990 | 2405791 |
| current taxonomy of medically important nonsporing anaerobes. | this review deals mainly with the taxonomy of the genera and species in the family bacteroidaceae. it has been proposed that the genus bacteroides should be restricted to include the "bacteroides fragilis group" and that the asaccharolytic black-pigmented bacteroides species be transferred to a new genus, porphyromonas. new bacteroides, fusobacterium, and selenomonas species have been described. a high degree of heterogeneity is apparently present among peptostreptococcus species. mobiluncus is ... | 1990 | 2406865 |
| [a clinical study on ceftazidime in the treatment of intractable respiratory infections]. | ceftazidime (caz) was administered to 51 patients (37 males, 14 females) with respiratory infections including severe cases, accompanied by various underlying respiratory diseases. the clinical efficacy and side effects of caz were investigated. the mean age and body weight of these 51 cases were 62.6 years and 48.0 kg, respectively. caz was administered by intravenous drip infusion (daily dose of 2-4 g) for a mean of 14.7 days to a mean total dose of 56.7 g. clinical efficacy rates were 64% (18 ... | 1990 | 2232147 |
| bactericidal effects of human neutrophils and sera on selected endodontic pathogenic bacteria in an anaerobic environment. | phagocytosis by normal human neutrophils and the bactericidal activity of normal human pooled serum were measured under anaerobic conditions on six endodontic pathogenic bacterial species from the genera actinomyces, bacteroides, fusobacterium, peptostreptococcus and streptococcus. the results revealed that actinomyces viscosus was not killed either by human neutrophils or by 20 per cent serum; peptostreptococcus anaerobius was not killed by either 20 per cent or 95 per cent serum; and bacteroid ... | 1990 | 2098335 |
| the effect of metronidazole on the anaerobic microorganisms of the root canal--a clinical study. | the antibacterial effect of 0.25% metronidazole solution as root canal irrigant on anaerobic bacteria was studied in ten central incisors. each tooth was treated at four appointments, and the presence of anaerobes in the root canal was studied on each occasion. no antibacterial intracanal dressings were used between the appointments. no anaerobes could be recovered from any tooth on the fifth appointment. in the control group, where normal saline was used as an irrigant, anaerobes could be recov ... | 1990 | 2100667 |
| localization and identification of root canal bacteria in clinically asymptomatic periapical pathosis. | twenty-one teeth with clinically asymptomatic periapical pathosis (class 3) were extracted and the isolation, identification, and localization of bacteria in the root apex were examined. mixtures involving several bacteria were isolated from more than 60% of the cases. scanning electron microscopy revealed bacterial masses to be associated with the apical part of the root canal, but not with the area of apical foramen or on the surface of root apex. our results indicate that the bacteria in clas ... | 1990 | 2084210 |
| perforated jejunal diverticulum with multiple hepatic abscesses. | we have described a patient with multiple hepatic abscesses caused by a perforated jejunal diverticulum with a presumed route of infection via the portal vein. patients with hepatic abscesses and no known source of infection should be evaluated for a contained mesenteric perforation of the gastrointestinal tract. finally, in patients who fail to respond promptly to percutaneous catheter drainage of a liver abscess, a continuing source of infection, such as perforation of a jejunal diverticulum, ... | 1990 | 2105531 |
| a rapid diagnosis of anaerobic infection in the oro-maxillary region by gas-liquid chromatography. | the relationship between volatile fatty acids (vfas) in pus and infecting bacterial species was examined in order to establish a rapid identification system for anaerobic microorganisms in purulent inflammation in the oro-maxillary region. vfas were detected by the direct injection of pus into gas-liquid chromatography (glc). bacterial examination was carried out by anaerobic culture using blood agar plates. the bacterial identification was carried out mainly according to the vpi manual. analysi ... | 1990 | 2131168 |
| [a clinical study of asymptomatic bacteriospermia]. | asymptomatic bacteriospermia was studied as an entity and its treatment was investigated in 65 subjects who clinically needed their semen tested. the obtained results are summarized as follows. 1. the rate of detection of bacteria in semen was 89.2%, and the rates of detection of aerobic and anaerobic bacteria were 55.4% and 70.8%, respectively. forty gram-positive strains were identified among the aerobic bacteria; rates of detection for staphylococcus epidermidis and enterococcus faecalis were ... | 1990 | 2112205 |
| intra-abdominal abscess in children: a 13-year experience. | the microbiology of intra-abdominal abscess in children is similar to that of adults--a mixture of aerobes and anaerobes. in abscess specimens taken from 36 children, predominant pathogens were bacteroides fragilis group species, peptostreptococcus species, and escherichia coli. | 1990 | 2120268 |
| suppurative oral candidosis. review of the literature and report of a case. | a case of a dento-alveolar abscess due to a polymicrobial infection with a yeast, candida guilliermondii and two other oral bacteria are described. a review of the literature has revealed only a single case of an odontogenic abscess due to candida species and we believe this to be the first report of a dentoalveolar infection where candida guilliermondii is associated as a co-pathogen. | 1990 | 2124592 |
| [morpho-functional characteristics of bacterial species of major importance in endodontic infections]. | most of the bacteria involved in the endodontic infection can be considered as "highly specific", for they appear to be almost irrelevant in the large field of the other human disease from infection. namely the most important anaerobia responsible for endodontic infection are: bacteroides, fusobacterium, peptostreptococcus, and veillonella. the group of bacteroides is composed by several species with different metabolic and genetic characteristics. they are gram-, non-motile, non-spore-forming r ... | 1990 | 2133812 |
| [significance of the bacterial flora in the etiology of apical periodontitis. qualitative, quantitative and topographical aspects]. | in the international literature it is shown the central role of root canal infection in the etiology of periapical lesions. as a matter of fact it has been proved (13) that sterile necrotic pulp tissue is completely unable to cause inflammatory reactions at the periapex. infection of endodontic origin extends to the supporting tissues of the tooth only in the case of their acute inflammation (e.g. acute apical periodontitis, acute alveolar abscess, phoenix abscess). on the other hand in chronic ... | 1990 | 2135040 |
| [susceptibilities of clinical bacterial isolates to antimicrobial agents. a study mainly focused on imipenem. reported by the research group for testing imipenem susceptibility on clinical isolates]. | this study was conducted to investigate susceptibilities of clinical bacterial isolates to imipenem (ipm) and other antibacterial agents at 64 hospital laboratories throughout japan from september to december of 1988. in this study, identification and susceptibility testing were carried out at each laboratory and the tests were performed according to the disk dilution method recommended by nccls in which susceptibilities are classified into "s", "ms", "i" and "r". ipm showed markedly high in vit ... | 1990 | 2287060 |
| in vitro activity of teicoplanin, vancomycin, a16686, clindamycin, erythromycin and fusidic acid against anaerobic bacteria. | the in vitro activity of teicoplanin and a16686, two new glycopeptide antibiotics was determined against 196 isolates of anaerobic bacteria. the activity of teicoplanin and a16686, in comparison with that of vancomycin, clindamycin, erythromycin and fusidic acid was 2 to 16 times higher against the gram positive anaerobes, namely, propionibacterium acnes, clostridium perfringens, clostridium difficile, clostridium species, peptococcus species and peptostreptococcus species. however, bacteroides ... | 1990 | 2139737 |
| [improving the clinico-microbiological diagnosis and treatment of non-clostridial anaerobic peritonitis]. | on the basis of clinico-microbiological examinations the presence of anaerobic flora was found in 104 out of 198 patients with peritonitis. the authors propose using intra-aortal++ transfusions of oxygenated blood in complex therapy of anaerobic peritonitis. | 1990 | 2175490 |
| transferable tet m in fusobacterium nucleatum. | two tetracycline-resistant fusobacterium nucleatum strains were able to transfer, by conjugation, tetracycline resistance and the tet m determinant to recipient f. nucleatum, peptostreptococcus anaerobius, and enterococcus faecalis strains at a frequency of 10(-1) to 10(-8). | 1990 | 2178339 |
| cerebral ventriculitis: mr findings. | cerebral ventriculitis is an uncommon site and manifestation of infection of the central nervous system. we report the magnetic resonance findings in two patients with cytologic and csf culture proof of ventriculitis. the findings included abnormal signal intensity of the ependyma and csf on t2-weighted images. in addition, ependymal, meningeal, and dural enhancement was seen in one case, on t1-weighted images, after administration of gd-diethylenetriamine pentaacetic acid. | 1990 | 2179305 |
| splenic abscess due to peptostreptococcus spp. as a complication of cardiac catheterization. | we describe the development of a splenic abscess, due in part to peptostreptococcus, as a complication of cardiac catheterization. the etiologies of splenic abscess should include peptostreptococcus, and splenic abscesses should be added to the list of complications of cardiac catheterization. | 1990 | 2317856 |
| parietal lobe abscess after routine periodontal recall therapy. report of a case. | this paper reports on a case of a 70-year-old physician diagnosed with a parietal lobe abscess following such treatment. after stereotactic biopsy and drainage and a 6-week course of intravenous antibiotic treatment, the patient recovered with minimal neurologic deficits. although brain abscesses are not commonly encountered in practice, clinicians must be aware of the potential virulence of the anaerobic components of the periodontal pocket and the possibility of resulting systemic infection, w ... | 1990 | 2182824 |
| optimum therapy for acute pelvic inflammatory disease. | neisseria gonorrhoeae is responsible for about one-third to one-half of cases of acute pelvic inflammatory disease (pid), although there is considerable geographical variation. chlamydia trachomatis is also an important aetiological agent, and is currently isolated 4 times more commonly from the cervix than the gonococcus. however, it is now clear that acute pid is polymicrobial in aetiology. even when n. gonorrhoeae and/or c. trachomatis are isolated from the endocervix, anaerobes such as bacte ... | 1990 | 2190794 |
| susceptibility of oral bacteria to phenoxyethanol and phenoxyethanol/chlorhexidine combinations. | a total of 57 bacterial strains (26 different species) which may be isolated from subgingival plaque were tested for their in vitro susceptibility to phenoxycthanol, a commonly-used antiseptic and preservative. ninety-five percent of the strains, including those associated with chronic inflammatory periodontal disease, were susceptible to concentrations of phenoxyethanol used topically (2% w/v). phenoxyethanol at a concentration of 1% (w/v) was also found that to have a rapid bactericidal effect ... | 1990 | 2202809 |
| biotransformations of aromatic aldehydes by acetogenic bacteria. | vanillin was subject to o demethylation and supported growth of clostridium formicoaceticum and clostridium thermoaceticum. vanillin was also stimulatory to the co-dependent growth of peptostreptococcus productus. the aldehyde substituent of vanillin was metabolized by routes which were dependent upon both the acetogen and a co-metabolizable substrate (e.g. carbon monoxide [co]). c. formicoaceticum and c. thermoaceticum oxidized the aldehyde group of vanillin to the carboxyl level, while p. prod ... | 1990 | 2328911 |
| purification and properties of a nadh-dependent 5,10-methylenetetrahydrofolate reductase from peptostreptococcus productus. | the methylenetetrahydrofolate reductase from the carbon-monoxide-utilizing homoacetogen peptostreptococcus productus (strain marburg) has been purified to apparent homogeneity. the purified enzyme catalyzed the oxidation of nadh with methylenetetrahydrofolate as the electron acceptor at a specific activity of 380 mumols.min-1 mg protein-1 (37 degrees c; ph 5.5). the apparent km for nadh was near 10 microm. the apparent molecular mass of the enzyme was determined by gel filtration to be approxima ... | 1990 | 2209595 |
| [a case of cervico-mediastinal abscess, secondary to acute tonsillitis: investigation of the treatments]. | no other infectious diseases in the field of otolaryngology cause rapid and lethal course than cervical abscess. a case of cervicomediastinal abscess secondary to acute tonsillitis was presented. the patient was a 43-year-old male with liver cirrhosis and primarily had the treatment of tonsillitis. the complication of duodenal perforation caused marked general deteriotation, and cervical abscess occured. immediately after transfer to our department, he was treated by cervical drainage, laparotom ... | 1990 | 2213351 |
| the obligate and facultatively anaerobic bacterial flora of the normal feline gingival margin. | samples from the gingival margins of 14 cats considered normal on clinical examination were cultured for facultative and obligate anaerobic bacteria. all mouths were free from any gingival marginal inflammation and tartar build-up; all cats were between 6 and 12 months of age. a mixed growth was obtained from all samples. the mean number of bacterial species per sample was 10.7 with a range of 7-16 isolates. of the 150 isolates processed, 109 (72.66%) were obligate anaerobes. of the facultativel ... | 1990 | 2353448 |
| recolonization of the subgingival microflora after scaling and root planing in human periodontitis. | the purpose of this study was to evaluate the recolonization patterns of the subgingival microflora of adult periodontitis patients after a single session of scaling and root planing. in each of eight patients, three clinically diseased sites were investigated microbiologically by darkfield microscopy and cultural analysis. after initial clinical and microbiological parameters were determined, each subject received a single session of scaling and root planing but no oral hygiene instructions. cl ... | 1990 | 2213468 |