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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-1-4
pubmed:abstractText
We have evaluated a PCR technique using primers based on Pneumocystis carinii major surface glycoprotein (MSG) genes, a multicopy gene family, for utility in detection of P. carinii in BAL and oropharyngeal samples obtained from immunosuppressed patients. These primers were able to detect P. carinii DNA in as little as 16 fg of genomic DNA. PCR using MSG primers detected P. carinii DNA in 7 smear-positive BAL samples (100% sensitivity), and found no P. carinii DNA in 12 smear-negative BAL samples (100% specificity). Mitochondrial ribosomal RNA (mrRNA) primers, commonly used in PCR studies of PCP, detected P. carinii in six of seven positive samples (85.7% sensitivity) and none of 12 were negative samples (100% specificity). Diagnosis of PCP by amplification of 81 oropharyngeal samples using MSG primers had a 50% sensitivity (4/8) and 96% specificity (70/73). PCR with mrRNA primers was 37.5% sensitive (3/8) and 100% specific (73/73). All three false-positive MSG results showed a very low intensity on Southern hybridization. PCR using MSG gene primers should prove valuable in the diagnosis of PCP.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0732-8893
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
27-32
pubmed:dateRevised
2005-1-28
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Development of a PCR assay for diagnosis of Pneumocystis carinii pneumonia based on amplification of the multicopy major surface glycoprotein gene family.
pubmed:affiliation
Critical Care Medicine Department, National Institutes of Health, Bethesda, MD 20892, USA.
pubmed:publicationType
Journal Article