| Abstract |
Milbemycin oximes are macrocyclic lactones that have a broad spectrum of activity against nematode infection in animals. They are known to block drug efflux, which increases the susceptibility of fungi to azoles. We investigated the effects of milbemycin on the azole susceptibility of fungi (Aspergillus fumigatus, Candida albicans, C. auris, Cryptococcus neoformans, and Trichophyton rubrum). To screen for changes in azole susceptibility, fungal growth was tested on a culture medium containing 1 μg/ml milbemycin. The results showed that milbemycin increased the azole susceptibility of azole-resistant strains of C. albicans, C. auris, C. neoformans, and T. rubrum. Thus, milbemycin might be useful against antifungal drug-resistant strains.
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