Evidence map›Paper›PMID 25781896›Full record

ArticlePloS one2015

Molecular epidemiology and in-vitro antifungal susceptibility of Aspergillus terreus species complex isolates in Delhi, India: evidence of genetic diversity by amplified fragment length polymorphism and microsatellite typing.

Shallu Kathuria, Cheshta Sharma, Pradeep Kumar Singh, Puneet Agarwal, Kshitij Agarwal, Ferry Hagen, Jacques F Meis, Anuradha Chowdhary

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

29 citing papers in PubMed, 65 citations in OpenAlex.

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  11. The Environmental Spread ofMicroorganisms · 2021
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  14. Species Distinction in the Trichophyton rubrum Complex.Journal of clinical microbiology · 2019
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  19. Article
  20. Adjunctive interferon-γ immunotherapy in a pediatric case of Aspergillus terreus infection.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2018
    Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Shallu KathuriaDepartment of Medical Mycology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Cheshta SharmaDepartment of Medical Mycology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Pradeep Kumar SinghDepartment of Medical Mycology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Puneet AgarwalDepartment of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
Kshitij AgarwalDepartment of Pulmonary Medicine, Rajan Babu Institute of Pulmonary Medicine and Tuberculosis, Delhi, India.
Ferry HagenDepartment of Medical Microbiology and Infectious Diseases, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands.
Jacques F MeisDepartment of Medical Microbiology and Infectious Diseases, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands; Department of Medical Microbiology, Radboudumc, Nijmegen, The Netherlands.
Anuradha ChowdharyDepartment of Medical Mycology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India.
University of Delhi · INCanisius-Wilhelmina Ziekenhuis · NLNew Delhi Tuberculosis Center · INRadboud University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aspergillus terreus is emerging as an etiologic agent of invasive aspergillosis in immunocompromised individuals in several medical centers in the world. Infections due to A. terreus are of concern due to its resistance to amphotericin B, in vivo and in vitro, resulting in poor response to antifungal therapy and high mortality. Herein we examined a large collection of molecularly characterized, geographically diverse A. terreus isolates (n = 140) from clinical and environmental sources in India for the occurrence of cryptic A. terreus species. The population structure of the Indian A. terreus isolates and their association with those outside India was determined using microsatellite based typing (STR) technique and Amplified Fragment Length Polymorphism analysis (AFLP). Additionally, in vitro antifungal susceptibility of A. terreus isolates was determined against 7 antifungals. Sequence analyses of the calmodulin locus identified the recently described cryptic species A. hortai, comprising 1.4% of Aspergillus section Terrei isolates cultured from cases of aspergilloma and probable invasive aspergillosis not reported previously. All the nine markers used for STR typing of A. terreus species complex proved to be highly polymorphic. The presence of high genetic diversity revealing 75 distinct genotypes among 101 Indian A. terreus isolates was similar to the marked heterogeneity noticed in the 47 global A. terreus population exhibiting 38 unique genotypes mainly among isolates from North America and Europe. Also, AFLP analysis showed distinct banding patterns for genotypically diverse A. terreus isolates. Furthermore, no correlation between a particular genotype and amphotericin B susceptibility was observed. Overall, 8% of the A. terreus isolates exhibited low MICs of amphotericin B. All the echinocandins and azoles (voriconazole, posaconazole and isavuconazole) demonstrated high potency against all the isolates. The study emphasizes the need of molecular characterization of A. terreus species complex isolates to better understand the ecology, acquisition and transmission of this species.

Indexed as

Amplified Fragment Length Polymorphism AnalysisAspergillosisAspergillusDrug Resistance, FungalEnzyme-Linked Immunosorbent AssayFungal ProteinsGenes, FungalGenetic VariationGenotypeHumansIndiaMicrobial Sensitivity TestsMicrosatellite RepeatsMolecular Sequence DataPhylogenySequence Analysis, DNAFungal Proteins

Identifiers

PMID25781896
PMCPMC4363790
OpenAlexW2057994927

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Registered trials

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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.