Bacteroides intermedius comb. nov. and Descriptions of Bacteroides corporis sp. nov. and Bacteroides levii sp. nov.

Johnson, John L.; Holdeman, Lillian V.

doi:10.1099/00207713-33-1-15

Cited by 155 publications

(66 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Eikenella corrodens are corroding Gram-negative facultative rods, formerly included with the corroding anaerobic rods as Bacteroides corrodens (Jackson and Goodman, 1972). B. intermedius (Johnson and Holdeman, 1983) was formerly part of Bacteroides melaninogenicus subsp. intermedius.…”

Section: Methodsmentioning

confidence: 99%

Antibiotic Susceptibility of Anaerobic Bacteria from the Human Oral Cavity

et al. 1985

View full text Add to dashboard Cite

Anaerobic, agar-dilution, minimal inhibitory concentrations (MICs) of 18 antibiotics are given for the numerically important bacterial groups from the human oral cavity. Strains are divided into susceptibility categories using the guidelines for interpretation of MICs suggested by the National Committee for Clinical Laboratory Standards. These guidelines are based on data on antibiotic concentrations attainable in serum following various dosage regimens. MICs are also compared with attainable gingival fluid levels where these are known. The highest percentages of strains were susceptible to tetracycline, with 89% of the 139 strains tested susceptible to serum levels and 97% conditionally susceptible to attainable gingival fluid levels. Ninety-eight percent of strains were conditionally susceptible to attainable gingival fluid levels of minocycline, but many strains, including Actinobacillus actinomycetemcomitans, were only moderately susceptible to attainable serum levels of this tetracycline analogue. Carbenicillin was effective against most groups of organisms, with the important exception of A. actinomycetemcomitans, at serum levels attainable with oral formulations of carbenicillin. Only 2% of the total strains tested were resistant to penicillin, while 33% of strains were categorized as moderately susceptible. Clindamycin was active against many strains of Gram-negative bacteria but was not active against A. actinomycetemcomitans, some Bacteroides, Eikenella corrodens, or the anaerobic vibrios. Metronidazole was active against A. actinomycetemcomitans, all five groups of oral Bacteroides tested, and against Capnocytophaga species. Chloramphenicol was active against A. actinomycetemcomitans, but not against most of the other groups of oral organisms. Nearly all groups contained strains non-susceptible to serum levels attainable with the usual doses of erythromycin, spiramycin, vancomycin, kanamycin, neomycin, streptomycin, doxycycline, oxytetracycline, or chlortetracycline; several strains were resistant to maximum attainable serum levels of each of these antibiotics except doxycycline.

show abstract

Section: Methodsmentioning

confidence: 99%

Antibiotic Susceptibility of Anaerobic Bacteria from the Human Oral Cavity

et al. 1985

View full text Add to dashboard Cite

show abstract

“…It is a frequent isolate from endodontic infections (Sundqvist, 1976;Van Winkelhoff, 1985;Gharbia et al, 1994), pregnancy gingivitis (Kornman and Loesche, 1980) and has been associated with the periodontal breakdown in Type I diabetics (Zambon et al, 1988). This organism has also been observed in non-oral infections such as pleuropulmonary infections and abscesses of the head and neck (Johnson and Holdeman, 1983;Finegold et al, 1993). Whether P. intermedia was the black-pigmented member of the organisms considered as Bacteroides melaninogenicus in earlier work associated with noma lesions is not clear (MacDonald, 1962;Adekeye and Ord, 1983).…”

Section: Trigger Organism(s) In Noma Lesionmentioning

confidence: 99%

Microbiological understandings and mysteries of noma (cancrum oris)

1999

View full text Add to dashboard Cite

The microbiologic history of noma was reviewed. Studies have associated the disease process with large numbers of fusiform bacilli and spirochetal organismS. In order to study the microbiology of the staging and infection periods of noma 62 Nigerian children, aged 3–14 years, 22 children had acute necrotizing ulcerative gingivitis (ANUG) and were also malnourished, 20 exhibited no acute necrotizing ulcerative gingivitis but were malnourished and 20 were free of acute necrotizing ulcerative gingivitis and in good nutritional state) were evaluated for the presence of viruses and oral microorganisms. The ANUG cases in the malnourished children had a higher incidence of Herpesviridae, the main virus being detected was cytomegalovirus. There were more anaerobic microorganisms recovered, with Prevotella intermedia as the predominant isolate, in the malnourished children as compared to the healthy children. A study of the predominant microflora in active sites of noma lesions was carried out in eight noma patients, 3–15 years of age, in Sokoto State, northwestern Nigeria.Fusobacterium necrophorum was recovered from 87.5% of the noma lesionS. Oral microorganisms isolated included Prevotella intermedia, alpha‐hemolytic streptococci and Actinomyces spp.which were isolated from 75.0, 50.0 and 37.5% of the patients, respectively.Peptostreptococcus micros, Veil‐lonella parvula, Staphylococcus aureus and Pseudomonas spp.were each recovered from one lesion. All strains were observed to be sensitive to all of the antibiotics tested with the exception of one strain of P. Intermedia which showed resistance to penicillin. The pathogenic mechanisms of F.necrophorum as a trigger organism were discussed. The isolation from human noma lesions of F.necrophorum, a pathogen primarily associated with animal diseases, may have important etiologic and animal transmission implications.

show abstract

“…intermedia there are two genotypes, I and II [12]; these have approx. 40% DNA homology [12,13], which is too low for them to be retained in one species. Since there were no phenotypic differences between the two which could make an easy distinction, they were retained in the same species.…”

Section: Present Statusmentioning

confidence: 99%

Classification and typing methods of black-pigmented Gram-negative anaerobes

VANSTEENBERGEN¹,

VANWINKELHOFF²,

DEGRAAFF³

1993

FEMS Immunology and Medical Microbiology

View full text Add to dashboard Cite

Until recently, black-pigmented Gram-negative anaerobes were classified as 'black-pigmented Bacteroides'. At present, 11 distinct species are recognized in this group. Because of major differences with Bacteroides fragilis, the type species of the genus Bacteroides, new genera have been proposed: Porphyromonas for three asaccharolytic species, and Prevotella for the saccharolytic species. Typing methods have been developed for some species of black-pigmented Gram-negative anaerobes. These include biotyping and serotyping, but relatively few types can be distinguished with these methods. Recently, DNA restriction endonuclease analysis has been used for typing of P. gingivalis, Pr. intermedia and P. endodontalis strains. Great heterogeneity was observed within all three species. This typing method can be useful for epidemiological studies.

show abstract

Bacteroides intermedius comb. nov. and Descriptions of Bacteroides corporis sp. nov. and Bacteroides levii sp. nov.

Cited by 155 publications

References 30 publications

Antibiotic Susceptibility of Anaerobic Bacteria from the Human Oral Cavity

Antibiotic Susceptibility of Anaerobic Bacteria from the Human Oral Cavity

Microbiological understandings and mysteries of noma (cancrum oris)

Classification and typing methods of black-pigmented Gram-negative anaerobes

Contact Info

Product

Resources

About