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Azole-Resistance in Aspergillus terreus and Related Species: An Emerging Problem or a Rare Phenomenon?

Overview of attention for article published in Frontiers in Microbiology, March 2018
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (86th percentile)
  • High Attention Score compared to outputs of the same age and source (91st percentile)

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22 X users
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2 Facebook pages
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1 Wikipedia page

Citations

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66 Dimensions

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89 Mendeley
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Title
Azole-Resistance in Aspergillus terreus and Related Species: An Emerging Problem or a Rare Phenomenon?
Published in
Frontiers in Microbiology, March 2018
DOI 10.3389/fmicb.2018.00516
Pubmed ID
Authors

Tamara Zoran, Bettina Sartori, Laura Sappl, Maria Aigner, Ferran Sánchez-Reus, Antonio Rezusta, Anuradha Chowdhary, Saad J. Taj-Aldeen, Maiken C. Arendrup, Salvatore Oliveri, Dimitrios P. Kontoyiannis, Ana Alastruey-Izquierdo, Katrien Lagrou, Giuliana Lo Cascio, Jacques F. Meis, Walter Buzina, Claudio Farina, Miranda Drogari-Apiranthitou, Anna Grancini, Anna M. Tortorano, Birgit Willinger, Axel Hamprecht, Elizabeth Johnson, Lena Klingspor, Valentina Arsic-Arsenijevic, Oliver A. Cornely, Joseph Meletiadis, Wolfgang Prammer, Vivian Tullio, Jörg-Janne Vehreschild, Laura Trovato, Russell E. Lewis, Esther Segal, Peter-Michael Rath, Petr Hamal, Manuel Rodriguez-Iglesias, Emmanuel Roilides, Sevtap Arikan-Akdagli, Arunaloke Chakrabarti, Arnaldo L. Colombo, Mariana S. Fernández, M. Teresa Martin-Gomez, Hamid Badali, Georgios Petrikkos, Nikolai Klimko, Sebastian M. Heimann, Omrum Uzun, Maryam Roudbary, Sonia de la Fuente, Jos Houbraken, Brigitte Risslegger, Cornelia Lass-Flörl, Michaela Lackner

Abstract

Objectives: Invasive mold infections associated with Aspergillus species are a significant cause of mortality in immunocompromised patients. The most frequently occurring aetiological pathogens are members of the Aspergillus section Fumigati followed by members of the section Terrei. The frequency of Aspergillus terreus and related (cryptic) species in clinical specimens, as well as the percentage of azole-resistant strains remains to be studied. Methods: A global set (n = 498) of A. terreus and phenotypically related isolates was molecularly identified (beta-tubulin), tested for antifungal susceptibility against posaconazole, voriconazole, and itraconazole, and resistant phenotypes were correlated with point mutations in the cyp51A gene. Results: The majority of isolates was identified as A. terreus (86.8%), followed by A. citrinoterreus (8.4%), A. hortai (2.6%), A. alabamensis (1.6%), A. neoafricanus (0.2%), and A. floccosus (0.2%). One isolate failed to match a known Aspergillus sp., but was found most closely related to A. alabamensis. According to EUCAST clinical breakpoints azole resistance was detected in 5.4% of all tested isolates, 6.2% of A. terreus sensu stricto (s.s.) were posaconazole-resistant. Posaconazole resistance differed geographically and ranged from 0% in the Czech Republic, Greece, and Turkey to 13.7% in Germany. In contrast, azole resistance among cryptic species was rare 2 out of 66 isolates and was observed only in one A. citrinoterreus and one A. alabamensis isolate. The most affected amino acid position of the Cyp51A gene correlating with the posaconazole resistant phenotype was M217, which was found in the variation M217T and M217V. Conclusions:Aspergillus terreus was most prevalent, followed by A. citrinoterreus. Posaconazole was the most potent drug against A. terreus, but 5.4% of A. terreus sensu stricto showed resistance against this azole. In Austria, Germany, and the United Kingdom posaconazole-resistance in all A. terreus isolates was higher than 10%, resistance against voriconazole was rare and absent for itraconazole.

X Demographics

X Demographics

The data shown below were collected from the profiles of 22 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 89 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 89 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 13 15%
Researcher 13 15%
Other 9 10%
Professor > Associate Professor 9 10%
Student > Doctoral Student 7 8%
Other 15 17%
Unknown 23 26%
Readers by discipline Count As %
Medicine and Dentistry 18 20%
Immunology and Microbiology 15 17%
Biochemistry, Genetics and Molecular Biology 10 11%
Agricultural and Biological Sciences 6 7%
Pharmacology, Toxicology and Pharmaceutical Science 2 2%
Other 5 6%
Unknown 33 37%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 17. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 October 2018.
All research outputs
#1,927,558
of 23,577,654 outputs
Outputs from Frontiers in Microbiology
#1,380
of 26,073 outputs
Outputs of similar age
#43,335
of 331,112 outputs
Outputs of similar age from Frontiers in Microbiology
#53
of 598 outputs
Altmetric has tracked 23,577,654 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 91st percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 26,073 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.4. This one has done particularly well, scoring higher than 94% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 331,112 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 86% of its contemporaries.
We're also able to compare this research output to 598 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 91% of its contemporaries.