Detection of azole-susceptible and azole-resistant Aspergillus coinfection by cyp51A PCR amplicon melting curve analysis
نویسندگان
چکیده
منابع مشابه
cyp51A-based mechanisms of Aspergillus fumigatus azole
72 Since the mid-1990s, a steady increase in the occurrence of itraconazole resistant Aspergillus 73 fumigatus isolates has been observed in clinical contexts leading to therapeutic failure in the 74 treatment of aspergillosis. This increase has been predominantly linked to a single allele of 75 the cyp51A gene, termed ‘TR/L98H’ which is thought to have arisen through the use of 76 agricultural...
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Seventy-two A. fumigatus clinical isolates from China were investigated for azole resistance based on mutations of cyp51A. We identified four azole-resistant strains, among which we found three strains highly resistant to itraconazole, two of which exhibit the TR34/L98H/S297T/F495I mutation, while one carries only the TR34/L98H mutation. To our knowledge, the latter has not been found previousl...
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Aspergillus diseases are often caused by Aspergillus fumigatus. Azoles are the mainstay of therapy, but the management of aspergillosis is hampered by the emergence of azole resistance. Rapid detection of azole resistance might benefit treatment outcome by early treatment modifications. However, the yield of fungal culture in invasive aspergillosis is low and susceptibility testing requires sev...
متن کاملFirst detection of Aspergillus fumigatus azole-resistant strain due to Cyp51A TR46/Y121F/T289A in an azole-naive patient in Spain
We report the first isolation of a voriconazole-resistant Aspergillus fumigatus strain harbouring the azole resistance mechanism TR46/Y121F/T289A, recovered from an azole-naive patient in Spain with chronic obstructive pulmonary disease. This new finding in Spain suggests the spread of this resistance mechanism and reinforces the need for antifungal susceptibility surveillance.
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ژورنال
عنوان ژورنال: Journal of Antimicrobial Chemotherapy
سال: 2017
ISSN: 0305-7453,1460-2091
DOI: 10.1093/jac/dkx262