Multicenter comparison trial of DNA extraction methods and PCR assays for detection of Chlamydia pneumoniae in endarterectomy specimens.

Abstract:

:The reported rate of detection of Chlamydia pneumoniae DNA within atherosclerotic lesions by PCR varies between 0 and 100%. In this study, identical sets of coded experimental atheroma samples (n = 15) and spiked controls (n = 5) were analyzed by 16 test methods in nine centers by means of PCR. The positive controls were correctly identified to levels of 1, 0.1, and 0.01 inclusion bodies of C. pneumoniae/ml of tissue homogenate by 16 (100%), 11 (69%), and 3 (19%) of the test methods, respectively. Three out of 16 negative controls (19%) were rated positive. Positivity rates for atheroma samples varied between 0 and 60% for the different test methods, with the maximum concordant result for positivity being only 25% for one carotid artery sample. There was no consistent pattern of positive results among the various laboratories, and there was no correlation between the detection rates and the sensitivity of the assay used.

journal_name

J Clin Microbiol

authors

Apfalter P,Blasi F,Boman J,Gaydos CA,Kundi M,Maass M,Makristathis A,Meijer A,Nadrchal R,Persson K,Rotter ML,Tong CY,Stanek G,Hirschl AM

doi

10.1128/JCM.39.2.519-524.2001

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

519-24

issue

2

eissn

0095-1137

issn

1098-660X

journal_volume

39

pub_type

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