ArticleAntimicrobial agents and chemotherapy2016
Quantitative Analysis of Single-Nucleotide Polymorphism for Rapid Detection of TR34/L98H- and TR46/Y121F/T289A-Positive Aspergillus fumigatus Isolates Obtained from Patients in Iran from 2010 to 2014.
Article in Antimicrobial agents and chemotherapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pooled it
- Invasive aspergillosis in adult patients in Australia and New Zealand: 2017-2020.The Lancet regional health. Western Pacific · 2023Article
- Synthesis of 1-(2-Hydroxyphenyl)- and (3,5-Dichloro-2-hydroxyphenyl)-5-oxopyrrolidine-3-carboxylic Acid Derivatives as Promising Scaffolds for the Development of Novel Antimicrobial and Anticancer Agents.International journal of molecular sciences · 2023Article
- Quantitative PCR Effectively Quantifies Triazole-Susceptible and Triazole-ResistantJournal of fungi (Basel, Switzerland) · 2022Article
- A Whole Genome Sequencing-Based Approach to Track down Genomic Variants in Itraconazole-Resistant Species ofJournal of fungi (Basel, Switzerland) · 2022Article
- Long Terminal Repeat RetrotransposonAntimicrobial agents and chemotherapy · 2021Article
- Molecular Markers of Antifungal Resistance: Potential Uses in Routine Practice and Future Perspectives.Journal of fungi (Basel, Switzerland) · 2021Review
- An Overview of the Management of the Most Important Invasive Fungal Infections in Patients with Blood Malignancies.Infection and drug resistance · 2020Review
- The Emergence of Rare ClinicalFrontiers in microbiology · 2019Article
- Isolation and Characterization of Clinical Triazole ResistanceIranian journal of public health · 2018Article
- Surveillance for Azole-ResistantFrontiers in microbiology · 2018Article
- Molecular Tools for the Detection and Deduction of Azole Antifungal Drug Resistance Phenotypes in Aspergillus Species.Clinical microbiology reviews · 2017Review
- Article
- Genetic Diversity andAntimicrobial agents and chemotherapy · 2017Article
- Review
- Discrimination of Aspergillosis, Mucormycosis, Fusariosis, and Scedosporiosis in Formalin-Fixed Paraffin-Embedded Tissue Specimens by Use of Multiple Real-Time Quantitative PCR Assays.Journal of clinical microbiology · 2016Article
- Triazole Resistance in Aspergillus spp.: A Worldwide Problem?Journal of fungi (Basel, Switzerland) · 2016Review
- Determination of antifungal susceptibility patterns among the environmental isolates of Aspergillus fumigatus in Iran.Advanced biomedical research · 2016Article
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12 authors.
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Abstract
We employed an endpoint genotyping method to update the prevalence rate of positivity for the TR34/L98H mutation (a 34-bp tandem repeat mutation in the promoter region of the cyp51A gene in combination with a substitution at codon L98) and the TR46/Y121F/T289A mutation (a 46-bp tandem repeat mutation in the promoter region of the cyp51A gene in combination with substitutions at codons Y121 and T289) among clinical Aspergillus fumigatus isolates obtained from different regions of Iran over a recent 5-year period (2010 to 2014). The antifungal activities of itraconazole, voriconazole, and posaconazole against 172 clinical A. fumigatus isolates were investigated using the European Committee on Antimicrobial Susceptibility Testing (EUCAST) broth microdilution method. For the isolates with an azole resistance phenotype, the cyp51A gene and its promoter were amplified and sequenced. In addition, using a LightCycler 480 real-time PCR system, a novel endpoint genotyping analysis method targeting single-nucleotide polymorphisms was evaluated to detect the L98H and Y121F mutations in the cyp51A gene of all isolates. Of the 172 A. fumigatus isolates tested, the MIC values of itraconazole (≥16 mg/liter) and voriconazole (>4 mg/liter) were high for 6 (3.5%). Quantitative analysis of single-nucleotide polymorphisms showed the TR34/L98H mutation in the cyp51A genes of six isolates. No isolates harboring the TR46/Y121F/T289A mutation were detected. DNA sequencing of the cyp51A gene confirmed the results of the novel endpoint genotyping method. By microsatellite typing, all of the azole-resistant isolates had genotypes different from those previously recovered from Iran and from the Dutch TR34/L98H controls. In conclusion, there was not a significant increase in the prevalence of azole-resistant A. fumigatus isolates harboring the TR34/L98H resistance mechanism among isolates recovered over a recent 5-year period (2010 to 2014) in Iran. A quantitative assay detecting a single-nucleotide polymorphism in the cyp51A gene of A. fumigatus is a reliable tool for the rapid screening and monitoring of TR34/L98H- and TR46/Y121F/T289A-positive isolates and can easily be incorporated into clinical mycology algorithms.
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