Evidence map›Paper›PMID 11825973›Full record

ArticleJournal of clinical microbiology2002

Development and evaluation of real-time PCR-based fluorescence assays for detection of Chlamydia pneumoniae.

Maria Lucia C Tondella, Deborah F Talkington, Brian P Holloway, Scott F Dowell, Karyn Cowley, Montse Soriano-Gabarro, Mitchell S Elkind, Barry S Fields

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Epidemiological changes inEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    Article
  4. From coughs to complications: the story ofJournal of medical microbiology · 2025
    Review
  5. ERA-CRISPR/Cas12a-based, fast and specific diagnostic detection forFrontiers in cellular and infection microbiology · 2024
    Article
  6. Article
  7. AssayingMolecules (Basel, Switzerland) · 2020
    Article
  8. Article
  9. Article
  10. Article
  11. What is the role of newer molecular tests in the management of CAP?Infectious disease clinics of North America · 2013
    Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Currently used nucleic acid amplification tests for the detection of viruses and atypicals in acute respiratory infections.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2007
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Maria Lucia C TondellaRespiratory Diseases Branch, Division of Bacterial and Mycotic Diseases, National Centers for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. MTondella@CDC.GOV
Deborah F Talkington
Brian P Holloway
Scott F Dowell
Karyn Cowley
Montse Soriano-Gabarro
Mitchell S Elkind
Barry S Fields

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydia pneumoniae is an important respiratory pathogen recently associated with atherosclerosis and several other chronic diseases. Detection of C. pneumoniae is inconsistent, and standardized PCR assays are needed. Two real-time PCR assays specific for C. pneumoniae were developed by using the fluorescent dye-labeled TaqMan probe-based system. Oligonucleotide primers and probes were designed to target two variable domains of the ompA gene, VD2 and VD4. The limit of detection for each of the two PCR assays was 0.001 inclusion-forming unit. Thirty-nine C. pneumoniae isolates obtained from widely distributed geographical areas were amplified by the VD2 and VD4 assays, producing the expected 108- and 125-bp amplification products, respectively. None of the C. trachomatis serovars, C. psittaci strains, other organisms, or human DNAs tested were amplified. The amplification results of the newly developed assays were compared to the results of culturing and two nested PCR assays, targeting the 16S rRNA and ompA genes. The assays were compared by testing C. pneumoniae purified elementary bodies, animal tissues, 228 peripheral blood mononuclear cell (PBMC) specimens, and 179 oropharyngeal (OP) swab specimens obtained from ischemic stroke patients or matched controls. The real-time VD4 assay and one nested PCR each detected C. pneumoniae in a single, but different, PBMC specimen. Eleven of 179 OP specimens (6.1%) showed evidence of the presence of C. pneumoniae in one or more tests. The real-time VD4 assay detected the most positive results of the five assays. We believe that this real-time PCR assay offers advantages over nested PCR assays and may improve the detection of C. pneumoniae in clinical specimens.

Indexed as

AgedAnimalsChlamydophila InfectionsChlamydophila pneumoniaeCulture MediaDNA, BacterialFemaleFluorescent DyesHumansMiceMiddle AgedPolymerase Chain ReactionSensitivity and SpecificityTaq PolymeraseCulture MediaDNA, BacterialFluorescent DyesTaq Polymerase

Identifiers

PMID11825973
PMCPMC153405

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.