Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-10-30
pubmed:abstractText
Isothermal nucleic acid sequence-based amplification (NASBA) was applied to detect Legionella 16S rRNA. The assay was originally developed as a Legionella pneumophila conventional NASBA assay with electrochemiluminescence (ECL) detection and was subsequently adapted to a L. pneumophila real-time NASBA format and a Legionella spp. real-time NASBA using molecular beacons. L. pneumophila RNA prepared from a plasmid construct was used to assess the analytical sensitivity of the assay. The sensitivity of the NASBA assay was 10 molecules of in vitro wild type L. pneumophila RNA and 0.1-1 colony-forming units (CFU) of L. pneumophila. In spiked respiratory specimens, the sensitivity of the NASBA assays was 1-10000 CFU of L. pneumophila serotype 1 depending on the background. After dilution of the nucleic acid extract prior to amplification, 1-10 CFU of L. pneumophila serotype 1 could be detected with both detection methods. Finally, 27 respiratory specimens, well characterized by culture and PCR, collected during a L. pneumophila outbreak, were tested by conventional and real-time NASBAs. All 11 PCR positive samples were positive by conventional NASBA, 9/11 and 10/11 were positive by L. pneumophila real-time NASBA and Legionella spp. real-time NASBA, respectively.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0167-7012
pubmed:author
pubmed:issnType
Print
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
408-15
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Development of conventional and real-time NASBA for the detection of Legionella species in respiratory specimens.
pubmed:affiliation
Department of Microbiology, University of Antwerp UA, Antwerp, Belgium. katherine.loens@ua.ac.be <katherine.loens@ua.ac.be>
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Evaluation Studies