Cited by 296Antifungal resistance and susceptibilityFungal and yeast genetics researchBacterial Identification and Susceptibility Testing

Aspergillus PCR: One Step Closer to Standardization

Open access
White, P. Lewis, Bretagne, Stéphane, Klingspor, Lena, Melchers, Willem J. G., McCulloch, Elaine, Schulz, Bettina, Finnstrom, Niklas, Mengoli, Carlo +3 more·2010·Journal of Clinical Microbiology

Abstract

PCR has been used as an aid in the diagnosis of invasive aspergillosis for almost 2 decades. A lack of standardization has limited both its acceptance as a diagnostic tool and multicenter clinical evaluations, preventing its inclusion in disease-defining criteria. In 2006, the European Aspergillus PCR Initiative was formed. The aim of the initiative was to provide optimal standardized protocols for the widespread clinical evaluation of the Aspergillus PCR to determine its diagnostic role and allow inclusion in disease diagnosis criteria. Quality control panels were developed and circulated to centers for evaluation of the existing methodology before recommendations based on the initial results were proposed for further panels. The centers were anonymously classified as “compliant” or “noncompliant,” according to whether they had followed the proposed recommendations before the performance parameters were determined and meta-regression analysis was performed. Most PCR amplification systems provided similar detection thresholds, although positivity was a function of the fungal burden. When PCR amplification was combined with DNA extraction, 50% of the centers failed to achieve the same level of detection. Meta-regression analysis showed positive correlations between sensitivity and extraction protocols incorporating the proposed recommendations and the use of bead beating, white cell lysis buffer, and an internal control PCR. The use of elution volumes above 100 μl showed a negative correlation with sensitivity. The efficiency of the Aspergillus PCR is limited by the extraction procedure and not by PCR amplification. For PCR testing of whole blood, it is essential that large blood volumes (≥3 ml) be efficiently lysed before bead beating to disrupt the fungal cell and performance of an internal control PCR to exclude false negativity. DNA should be eluted in volumes of <100 μl.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1128/jcm.01767-09

Cites

3 of 3 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Among patients with documented MRSA infections, delays of > 24-48 hours until antibiotic administration are associated with increased mortality in some studies, but not in others.

    “Among patients with documented MRSA infections, delays of > 24-48 hours until antibiotic administration are associated with increased mortality in some studies (143-147), but not in others (148-154).”

    From Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock 2021. (2021) · cites this paper as [146]

    The Abstract discusses mortality in invasive aspergillosis and the early initiation of antifungal therapy, not documented MRSA infections. Searches for MRSA, delayed antibiotic administration, and a 24–48-hour mortality association found no passage addressing the claim. (LLM, conf=0.78)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 30

  1. [1]Ascioglu, S., J. H. Rex, B. de Pauw, J. E. Bennett, J. Bille, F. Crokaert, D. W. Denning, J. P. Donnelly, J. E. Edwards, Z. Erjavec, D. Fiere, O. Lortholary, J. Maertens, J. F. Meis, T. F. Patterson, J. Ritter, D. Selleslag, P. M. Shah, D. A. Stevens, T. J. Walsh, and the Invasive Fungal Infections Cooperative Group of the European Organization for Research and Treatment of Cancer, Mycoses Study Group of the National Institute of Allergy and Infectious Diseases. 2002. Defining opportunistic invasive fungal infections in immunocompromised patients with cancer and hematopoietic stem cell transplants: an international consensus. Clin. Infect. Dis. 34:7-14. [DOI] [PubMed] [Google Scholar]
  2. [3]Caillot, D., J. F. Couaillier, A. Bernard, O. Casasnovas, D. W. Denning, L. Mannone, J. Lopez, G. Couillault, F. Piard, O. Vagner, and H. Guy. 2001. Increasing volume and changing characteristics of invasive pulmonary aspergillosis on sequential thoracic computed tomography scans in patients with neutropenia. J. Clin. Oncol. 19:253-259. [DOI] [PubMed] [Google Scholar]
  3. [5]Donnelly, J. P. 2006. Polymerase chain reaction for diagnosing invasive aspergillosis: getting closer but still a ways to go. Clin. Infect. Dis. 42:487-489. [DOI] [PubMed] [Google Scholar]
  4. [6]Einsele, H., H. Hebart, G. Roller, J. Löffler, I. Rothenhofer, C. A. Muller, R. A. Bowden, J. van Burik, D. Engelhard, L. Kanz, and U. Schumacher. 1997. Detection and identification of fungal pathogens in blood by using molecular probes. J. Clin. Microbiol. 35:1353-1360. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. [7]Garcia, M. E., J. L. Blanco, J. Caballero, and D. Gargallo-Viola. 2002. Anticoagulants interfere with PCR used to diagnose invasive aspergillosis. J. Clin. Microbiol. 40:1567-1568. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. [8]Greene, R. E., H. T. Schlamm, J. W. Oestmann, P. Stark, C. Durand, O. Lortholary, J. R. Wingard, R. Herbrecht, P. Ribaud, T. F. Patterson, P. F. Troke, D. W. Denning, J. E. Bennett, B. E. de Pauw, and R. H. Rubin. 2007. Imaging findings in acute invasive pulmonary aspergillosis: clinical significance of the halo sign. Clin. Infect. Dis. 44:373-379. [DOI] [PubMed] [Google Scholar]
  7. [9]Herrera, M. L., A. C. Vallor, J. A. Gelfond, T. F. Patterson, and B. L. Wickes. 2009. Strain-dependent variation in 18S ribosomal DNA copy numbers in Aspergillus fumigatus. J. Clin. Microbiol. 47:1325-1332. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. [11]Irwig, L., P. Bossuyt, P. Glasziou, C. Gatsonis, and J. Lijmer. 2002. Evidence base of clinical diagnosis: designing studies to ensure that estimates of test accuracy are transferable. BMJ 321:669-671. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. [12]Kami, M., T. Fukui, S. Ogawa, Y. Kazuyama, U. Machida, Y. Tanaka, Y. Kanda, T. Kashima, Y. Yamazaki, T. Hamaki, S. Mori, H. Akiyama, Y. Mutou, H. Sakamaki, K. Osumi, S. Kimura, and H. Hirai. 2001. Use of real-time PCR on blood samples for diagnosis of invasive aspergillosis. Clin. Infect. Dis. 33:1504-1512. [DOI] [PubMed] [Google Scholar]
  10. [13]Klingspor, L., and S. Jalal. 2006. Molecular detection and identification of Candida and Aspergillus spp. from clinical samples using real-time PCR. Clin. Microbiol. Infect. 12:745-753. [DOI] [PubMed] [Google Scholar]
  11. [14]Kontoyiannis, D. P., and K. A. Marr. 2009. Therapy of invasive aspergillosis: current consensus and controversies, p. 491-502. In J.-P. Latge and W. J. Steinbach (ed.), Aspergillus fumigatus and aspergillosis. ASM Press, Washington, DC.
  12. [15]Lengerova, M., K. Hrncirova, I. Kocmanova, Z. Racil, B. Weinbergerova, J. Vorlicek, and J. Mayer. 2008. Detection of Aspergillus fumigatus in bronchoalveolar lavage samples from immunocompromised patients using real-time PCR with fungal DNA preamplification, p.630. Abstr. 48th Intersci. Conf. Antimicrob. Agents Chemother. American Society for Microbiology, Washington, DC.
  13. [16]Loeffler, J., N. Schultze, H. Hebart, and H. Einsele. 2005. Detection of genomic DNA from Aspergillus species using the LightCycler technology, poster M-721. Abstr. 45th Intersci. Conf. Antimicrob. Agents Chemother. American Society for Microbiology, Washington, DC.
  14. [17]Loeffler, J., N. Henke, H. Hebart, D. Schmidt, L. Hagmeyer, U. Schumacher, and H. Einsele. 2000. Quantification of fungal DNA by using fluorescence resonance energy transfer and the LightCycler system. J. Clin. Microbiol. 38:586-590. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. [18]Loeffler, J., H. Hebart, R. Bialek, L. Hagmeyer, D. Schmidt, F. P. Serey, M. Hartmann, J. Eucker, and H. Einsele. 1999. Contaminations occurring in fungal PCR assays. J. Clin. Microbiol. 37:1200-1202. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. [19]Mennink-Kersten, M. A., J. P. Donnelly, and P. E. Verweij. 2004. Detection of circulating galactomannan for the diagnosis and management of invasive aspergillosis. Lancet Infect. Dis. 4:349-357. [DOI] [PubMed] [Google Scholar]
  17. [20]Millon, L., R. Piarroux, E. Deconinck, C. E. Bulabois, F. Grenouillet, P. Rohrlich, J. M. Costa, and S. Bretagne. 2005. Use of real-time PCR to process the first galactomannan-positive serum sample in diagnosing invasive aspergillosis. J. Clin. Microbiol. 43:5097-5101. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. [21]Pfeiffer, C. D., J. P. Fine, and N. Safdar. 2006. Diagnosis of invasive aspergillosis using a galactomannan assay: a meta-analysis. Clin. Infect. Dis. 42:1417-1427. [DOI] [PubMed] [Google Scholar]
  19. [22]Rimek, D., A. P. Garg, W. H. Haas, and R. Kappe. 1999. Identification of contaminating fungal DNA sequences in zymolyase. J. Clin. Microbiol. 37:830-831. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. [23]Schulz, B., K. Weber, C. Radecke, C. Scheer, and M. Ruhnke. 2009. Effect of different sample volumes on the DNA extraction of Aspergillus fumigatus from whole blood. Clin. Microbiol. Infect. 15:686-688. [DOI] [PubMed] [Google Scholar]
  21. [24]Schwartz, S., and M. Ruhnke. 2009. Aspergillus sinusitis and cerebral aspergillosis, p. 301-318. In J.-P. Latge and W. J. Steinbach (ed.), Aspergillus fumigatus and aspergillosis. ASM Press, Washington, DC.
  22. [25]Sterne, J. A. C., M. J. Bradburn, and M. Egger. 2001. Meta-analysis in Stata™, p. 347-369. In M. Egger, G. Davey Smith, and D. G. Altman (ed.), Systematic reviews in health care: meta-analysis in context, 2nd ed. BMJ Publishing Group, London, United Kingdom.
  23. [26]Tong, K. B., C. J. Lau, K. Murtagh, A. J. Layton, and R. Seifeldin. 2009. The economic impact of aspergillosis: analysis of hospital expenditures across patient subgroups. Int. J. Infect. 13:24-36. [DOI] [PubMed] [Google Scholar]
  24. [27]Upton, A., K. A. Kirby, P. Carpenter, M. Boeckh, and K. A. Marr. 2007. Invasive aspergillosis following hematopoietic cell transplantation: outcomes and prognostic factors associated with mortality. Clin. Infect. Dis. 44:531-540. [DOI] [PubMed] [Google Scholar]
  25. [28]Van Burik, J. A., H. R. W. Schreckhise, T. C. White, R. A. Bowden, and D. Myerson. 1998. Comparison of six extraction techniques for isolation of DNA from filamentous fungi. Med. Mycol. 36:299-303. [PubMed] [Google Scholar]
  26. [29]White, P. L., and R. A. Barnes. 2009. Aspergillus PCR, p. 373-392. In J.-P. Latge and W. J. Steinbach (ed.), Aspergillus fumigatus and aspergillosis. ASM Press, Washington, DC.
  27. [30]White, P. L., R. Barton, M. Guiver, C. J. Linton, S. Wilson, M. Smith, B. L. Gomez, M. J. Carr, P. T. Kimmitt, S. Seaton, K. Rajakumar, T. Holyoake, C. C. Kibbler, E. Johnson, R. P. Hobson, B. Jones, and R. A. Barnes. 2006. A consensus on fungal polymerase chain reaction diagnosis?: a United Kingdom-Ireland evaluation of polymerase chain reaction methods for detection of systemic fungal infections. J. Mol. Diagn. 8:376-384. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. [31]White, P. L., C. J. Linton, M. D. Perry, E. M. Johnson, and R. A. Barnes. 2006. The evolution and evaluation of a whole blood polymerase chain reaction assay for the detection of invasive aspergillosis in hematology patients in a routine clinical setting. Clin. Infect. Dis. 42:479-486. [DOI] [PubMed] [Google Scholar]
  29. [32]White, P. L., and R. A. Barnes. 2006. Aspergillus PCR—platforms, strengths and weaknesses. Med. Mycol. 44(Suppl.):191-198. [DOI] [PubMed] [Google Scholar]
  30. [33]Williamson, E. C. M. 2001. Molecular approaches to fungal infections in immunocompromised patients. MD thesis. University of Bristol, Bristol, United Kingdom.

Cited by

Sorted by citations

Authors
White, P. L., Bretagne, S., Klingspor, L., Melchers, W. J. G., McCulloch, E., Schulz, B., Finnstrom, N., Mengoli, C., Barnes, R. A., Donnelly, J. P., & Loeffler, J.
Affiliations
  • University Hospital of Wales (GB)
  • Henri Mondor Hospital, Créteil, France
  • Karolinska University Hospital (SE)
  • Radboud University Medical Center (NL)
  • Royal Hospital for Children (GB)
  • Charité – Universitätsmedizin Berlin (DE)
  • Cepheid AB, Toulouse, France
  • University of Padua (IT)
  • Cardiff University (GB)
  • University of Würzburg (DE)
Venue
Journal of Clinical Microbiology
Published
2010-04
Volume
48
Issue
4
Pages
1231-1240
ISSN
  • 0095-1137 (ISSN-L)
  • 1098-660X
OpenAlex
W2104808759
Cited by
296
References
3
Citations by year
2026: 6 · 2025: 15 · 2024: 8 · 2023: 8 · 2022: 6 · 2021: 11 · 2020: 13 · 2019: 13 · 2018: 18 · 2017: 19 · 2016: 27 · 2015: 23 · 2014: 27 · 2013: 33 · 2012: 32
FWCI
21.16
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Microbiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (acceptedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Univerzita Karlova v Praze
  • Cardiff University
  • Radboud Universiteit
  • Università degli Studi di Padova
  • Hospital for Sick Children
  • Università degli Studi di Verona
Topics
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Bacterial Identification and Susceptibility Testing
Keywords
Aspergillus PCR, invasive aspergillosis, diagnostic standardization, DNA extraction, bead beating, detection sensitivity, fungal burden
MeSH terms
Animals, Aspergillosis, Aspergillus, DNA, Fungal, False Negative Reactions, Mycology, Sensitivity and Specificity, Polymerase Chain Reaction, Clinical Laboratory Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review