Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1997-12-18
pubmed:abstractText
One hundred and seventy-eight samples from 168 individuals were tested for Mycobacterum tuberculosis complex (Mtc) using Amplicor PCR, IS6110-PCR (in-house), acid fast (AF)-staining and culture. Thirty-one samples were positive by culture, but 37 samples were later resolved to be truly positive for Mtc. Of these, Amplicor detected 32 (86.5%), IS6110-PCR detected 31 (83.6%), and AF-staining 21 (56.8%). None of the 141 Mtc-negative samples was positive by these tests, thus giving 100% specificity. Although the IS6110-PCR was more sensitive than Amplicor in detecting spiked Mtc DNA, it was not more sensitive than the latter in detecting Mtc in clinical samples. Reasons likely to account for the PCR false negativity were (i) sample inoculum size, (ii) nonuniform samples due to clumping effect of Mtc and (iii) the absence of target gene sequences for IS6110-PCR. Culture negativity, on the other hand, was likely to be associated with nonviable Mtc. Amplicor PCR is promising for direct detection of Mtc. The IS6110-PCR, however, may not be as suitable because of possible existence of IS6110-deleted Mtc strain in Singapore.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1360-2276
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1095-101
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Evaluation of Amplicor- and IS6110-PCR for direct detection of Mycobacterium tuberculosis complex in Singapore.
pubmed:affiliation
Department of Pathology, Singapore General Hospital, Singapore.
pubmed:publicationType
Journal Article