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In vitro interaction between glabridin and voriconazole against Aspergillus fumigatus isolates. 2021

Mojtaba Nabili, and Narges Aslani, and Tahereh Shokohi, and Mohammad Taghi Hedayati, and Fozieh Hassanmoghadam, and Maryam Moazeni
Faculty of Medicine, Sari Branch, Islamic Azad University, Sari, Iran.

BACKGROUND Voriconazole (VRC) is widely recommended as the first-line therapy for invasive aspergillosis. However, surveillance studies have demonstrated that there is an increase in the frequency of azole resistance among Aspergillus fumigates isolates. In recent years, more studies on effective synergisms between natural agents and antifungal drugs have been published. OBJECTIVE To evaluate the synergistic antifungal effect of glabridin (Gla) and VRC against A. fumigatus isolates. METHODS Potential interactions between Gla and VRC were studied by using a microdilution checkerboard method based on the CLSI reference technique. To assess the interaction of drugs the fractional inhibitory concentration index (FICI) was calculated based on the Loewe Additivity model. RESULTS The minimum inhibitory concentrations (MIC) obtained with Gla alone were relatively high (MIC50 16μg/ml). However, our results showed synergistic interaction between Gla and VRC against A. fumigatus strains, with FICI range values between 0.15 and 0.5. CONCLUSIONS Synergistic activity of Gla and VRC against both VRC-sensitive and -resistant A. fumigatus isolates may lead to design new antifungal agents, especially for inhibiting those azole-resistant strains.

UI MeSH Term Description Entries
D007529 Isoflavones 3-Phenylchromones. Isomeric form of FLAVONOIDS in which the benzene group is attached to the 3 position of the benzopyran ring instead of the 2 position. 3-Benzylchroman-4-One,3-Benzylidene-4-Chromanone,Homoisoflavone,Homoisoflavones,Isoflavone,Isoflavone Derivative,3-Benzylchroman-4-Ones,3-Benzylidene-4-Chromanones,Isoflavone Derivatives,3 Benzylchroman 4 One,3 Benzylchroman 4 Ones,3 Benzylidene 4 Chromanone,3 Benzylidene 4 Chromanones,Derivative, Isoflavone,Derivatives, Isoflavone
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D010636 Phenols Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.
D000935 Antifungal Agents Substances that destroy fungi by suppressing their ability to grow or reproduce. They differ from FUNGICIDES, INDUSTRIAL because they defend against fungi present in human or animal tissues. Anti-Fungal Agents,Antifungal Agent,Fungicides, Therapeutic,Antibiotics, Antifungal,Therapeutic Fungicides,Agent, Antifungal,Anti Fungal Agents,Antifungal Antibiotics
D001232 Aspergillus fumigatus A species of imperfect fungi from which the antibiotic fumigatin is obtained. Its spores may cause respiratory infection in birds and mammals. Aspergillus fumigates,Neosartorya fumigata,Sartorya fumigata
D025141 Drug Resistance, Fungal The ability of fungi to resist or to become tolerant to chemotherapeutic agents, antifungal agents, or antibiotics. This resistance may be acquired through gene mutation. Antibiotic Resistance, Fungal,Antifungal Drug Resistance,Resistance, Antifungal Drug
D065819 Voriconazole A triazole antifungal agent that specifically inhibits STEROL 14-ALPHA-DEMETHYLASE and CYTOCHROME P-450 CYP3A. UK 109,496,UK 109496,UK-109,496,UK-109496,Vfend,UK109,496,UK109496

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