Evidence map›Paper›PMID 17108077›Full record

ArticleJournal of clinical microbiology2007

Detection of Coccidioides species in clinical specimens by real-time PCR.

M J Binnicker, S P Buckwalter, J J Eisberner, R A Stewart, A E McCullough, S L Wohlfiel, N L Wengenack

Abstract readEvaluation Study
In one paragraph

Article in Journal of clinical microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
–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

51 citing papers in PubMed.

  1. Article
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  14. Molecular Diagnosis of Endemic Mycoses.Journal of fungi (Basel, Switzerland) · 2022
    Review
  15. Article
  16. Coccidioides Species: A Review of Basic Research: 2022.Journal of fungi (Basel, Switzerland) · 2022
    Review
  17. Coccidioidomycosis: A Contemporary Review.Infectious diseases and therapy · 2022
    Review
  18. Skeletal Infections Caused byDiagnostics (Basel, Switzerland) · 2022
    Review
  19. 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

7 authors.

M J BinnickerDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.
S P Buckwalter
J J Eisberner
R A Stewart
A E McCullough
S L Wohlfiel
N L Wengenack

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coccidioides spp. are dimorphic fungal pathogens endemic to the semiarid regions of North, Central, and South America. Currently, direct smear and culture are the most common means of identifying Coccidioides spp. While these methods offer relatively sensitive and specific means of detecting Coccidioides spp., growth in culture may take up to 3 weeks, potentially delaying the diagnosis and initiation of appropriate antifungal therapy. In addition, growth of the organism represents a significant safety risk to laboratory personnel. The need for a rapid and safe means of diagnosing coccidioidomycosis prompted us to develop a real-time PCR assay to detect Coccidioides spp. directly from clinical specimens. Primers and fluorescent resonance energy transfer (FRET) probes were designed to target the internal transcribed spacer 2 region of Coccidioides. The assay's limit of detection is below 50 targets per reaction. An analysis of 40 Coccidioides sp. clinical isolates grown in culture demonstrated 100% sensitivity of the assay. A cross-reactivity panel containing fungi, bacteria, mycobacteria, and viruses was tested and demonstrated 100% specificity for Coccidioides spp. An analysis of 266 respiratory specimens by LightCycler PCR demonstrated 100% sensitivity and 98.4% specificity for Coccidioides spp. compared with culture. Analysis of 66 fresh tissue specimens yielded 92.9% sensitivity and 98.1% specificity versus those of the culture method. The sensitivity of the assay testing 148 paraffin-embedded tissue samples is 73.4%. A rapid method for the detection of Coccidioides spp. directly from clinical material will greatly assist in the timely diagnosis and treatment of patients, while at the same time decreasing the risk of accidental exposure to laboratory personnel.

Indexed as

CoccidioidesCoccidioidomycosisCulture MediaDNA, FungalDNA ProbesFluorescence Resonance Energy TransferHumansLung Diseases, FungalPolymerase Chain ReactionRespiratory SystemSensitivity and SpecificityCulture MediaDNA, FungalDNA Probes

Identifiers

PMID17108077
PMCPMC1828991

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.