Evidence map›Paper›PMID 26560539›Full record

ArticleJournal of clinical microbiology2016

Occurrence of Fungal DNA Contamination in PCR Reagents: Approaches to Control and Decontamination.

S Czurda, S Smelik, S Preuner-Stix, F Nogueira, T Lion

Abstract read
In one paragraph

Article in Journal of clinical microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing 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

23 citing papers in PubMed.

  1. Fungal meningoencephalitis caused byMedical mycology case reports · 2026
    Article
  2. Review
  3. mBio · 2025
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Best practices for performance of real-time PCR assays in veterinary diagnostic laboratories.Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc · 2020
    Article
  14. Review
  15. Article
  16. Diagnostic Mycology: Xtreme Challenges.Journal of clinical microbiology · 2020
    Review
  17. Article
  18. Article
  19. The challenge of molecular diagnosis of bloodstream infections.World journal of microbiology & biotechnology · 2019
    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

5 authors.

S CzurdaDivision of Molecular Microbiology, Children's Cancer Research Institute (CCRI), Vienna, Austria.
S SmelikDivision of Molecular Microbiology, Children's Cancer Research Institute (CCRI), Vienna, Austria.
S Preuner-StixDivision of Molecular Microbiology, Children's Cancer Research Institute (CCRI), Vienna, Austria.
F NogueiraDivision of Molecular Microbiology, Children's Cancer Research Institute (CCRI), Vienna, Austria.
T LionDivision of Molecular Microbiology, Children's Cancer Research Institute (CCRI), Vienna, Austria thomas.lion@ccri.at.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nucleic acid amplification techniques permitting sensitive and rapid screening in patients at risk for invasive fungal infections are an important addition to conventional fungal diagnostic methods. However, contamination with fungal DNA may be a serious threat to the validity of fungal amplification-based assays. Besides rigorous handling procedures to avoid false-positive test results from exogenous sources, we have implemented protocols for comprehensive assessment of fungal contamination in all materials involved in the analytical process. Traces of fungal DNA were found in different commercially available PCR reagents, including lyophilized primers, TaqMan probes, and master mix solutions. These contaminants resulted in a considerable rate of false-positive tests in panfungal real-time PCR analysis. To address this problem, we have established a decontamination protocol based on the activity of a double-strand specific DNase. Using this approach, we have significantly reduced the frequency of false-positive test results attributable to contaminated reagents. On the basis of our findings, we strongly recommend routine monitoring of all reagents used in fungal PCR assays for the presence of relevant contaminants. As long as fungal-grade reagents are not readily available, pretreatment methods facilitating elimination of fungal DNA are critical for reducing the risk of false-positive results in highly sensitive molecular fungal detection assays.

Indexed as

False Positive ReactionsIndicators and ReagentsDecontaminationDeoxyribonucleasesDNA, FungalHumansHydrolysisMycosesPolymerase Chain ReactionDeoxyribonucleasesDNA, FungalIndicators and Reagents

Identifiers

PMID26560539
PMCPMC4702712

What OpenQuestion holds

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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.