Evidence map›Paper›PMID 15872221›Full record

ArticleJournal of clinical microbiology2005

Comparison of commercial real-time PCR assays for quantification of Epstein-Barr virus DNA.

Guillermo Ruiz, Pilar Peña, Fernando de Ory, Juan Emilio Echevarría

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of clinical microbiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 16% of its field
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

14 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Amplification chemistries in clinical virology.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2019
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Laboratory assays for Epstein-Barr virus-related disease.The Journal of molecular diagnostics : JMD · 2008
    Review
  11. Article
  12. Article
  13. Article
  14. 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

4 authors at 1 institution in 1 country.

Guillermo RuizNational Microbiology Center, Instituto de Salud Carlos III, Ctra. Majadahonda-Pozuelo s/n, 28220 Majadahonda, Madrid, Spain. guille@isciii.es
Pilar Peña
Fernando de Ory
Juan Emilio Echevarría
Centro Nacional de Microbiologia · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Clinical research suggests a role for viral load measurement in predicting and monitoring Epstein-Barr virus (EBV)-associated diseases. The aim of this study was to assess the performance of the recently commercially available quantitative assays for EBV based on real-time PCR: the RealArt EBV LC PCR kit and the LightCycler EBV quantification kit. A total of 87 samples were analyzed: 67 samples were obtained from transplant recipients and patients with EBV-associated diseases, 8 samples were obtained from the Quality Control for Molecular Diagnostics 2002 EBV Proficiency Program, and 12 negative qualitative nested PCR samples were used as negative controls. Inter- and intra-assay variabilities were determined by running replicates of two samples. All samples were run in a LightCycler instrument. The differences between positive and negative results were not considered statistically significant (P = 0.5355). There were no false-positive results using either method for nested PCR negative-control samples. The difference in viral load values using the two different methods was considered statistically significant (P < 0.01). The logarithmic linear correlation for both assays was low (r = 0.449) but significant (P < 0.01). The LightCycler EBV quantification kit showed a wider dispersal in results but produced substantially more-accurate melting temperature profile curves. The bias towards lower measurements was considerable in comparison with higher viral load. The differences in PCR efficiency and the presence of mutations could explain the disparity between the two methods. It was concluded that confidence intervals would be required to report the results rather than plain absolute values of viral load for patient monitoring.

Indexed as

DNA, ViralEpstein-Barr Virus InfectionsHerpesvirus 4, HumanHumansOrgan TransplantationPolymerase Chain ReactionQuality ControlReproducibility of ResultsViral LoadDNA, Viral

Identifiers

PMID15872221
PMCPMC1153768
OpenAlexW2155742935

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.