Linked Life Data

2469776

Source:http://linkedlifedata.com/resource/pubmed/id/2469776

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1989-6-16
pubmed:databankReference
pubmed:abstractText
Analysis of the subgingival microflora has recently implicated Actinobacillus (Haemophilus) actinomycetemcomitans and several black Bacteroides species in the aetiology of juvenile, adult and rapidly progressing periodontitis. Rapid bacteriological diagnosis has been hampered by the slow growth and fastidious nature of these bacteria. To construct diagnostic probes, dideoxy sequencing of the 16S rRNA molecules from A. (H.) actinomycetemcomitans, Haemophilus aphrophilus, Bacteroides gingivalis, Bacteroides intermedius subgroup II, Bacteroides asaccharolyticus and several closely related species was performed. Next, oligodeoxynucleotides, complementary to defined regions of the 16S rRNA exhibiting considerable evolutionary divergence, were synthesized for use as molecular probes. In a dot-blot hybridization assay, all strains from each of the species for which probes were constructed were correctly identified, with a detection limit of less than 5 x 10(3) organisms. No cross-hybridization to closely related species (except for H. aphrophilus and Haemophilus paraphrophilus) or contaminating bacteria was observed. Using a modified DNA/RNA hybridization technique, the detection could be performed in less than 12 h, as compared to 2-3 weeks using conventional bacteriological procedures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0022-1287
pubmed:author
pubmed:issnType
Print
pubmed:volume
134
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1931-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Synthetic oligodeoxynucleotide probes for the rapid detection of bacteria associated with human periodontitis.
pubmed:affiliation
Institut für Medizinische Mikrobiologie und Hygiene der Universität Freiburg, FRG.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't