Journal of Pharmaceutical Practice and Service 2025;43(2):87-91
doi:10.12206/j.issn.2097-2024.202409047
Study on the effect of berberine combined with fluconazole on fluconazole-tolerant Candida albcians strains
Zecheng SONG 1 ; Shanshan MA 1 ; Qiaoling HU 2 ; Hua ZHONG 1 ; Yan WANG 3
Affiliations
Keywords
Candida albicans; berberine; fluconazole; drug combination; drug tolerance
Country
China
Language
Chinese
Abstract
Objective To investigate the combined effect of berberine (BBR) and fluconazole (FLC) on FLC-tolerant Candida albicans in vitro. Methods The sensitivity of 8 strains of Candida albicans to FLC was assessed by determining their minimal inhibitory concentration (MIC) using broth microdilution method. FLC-tolerant strains were screened from FLC-sensitive strains by disk diffusion assay. The effect of BBR combined with FLC on FLC-tolerant Candida albicans was investigated by disk diffusion assay. Results All eight strains of Candida albicans exhibited sensitivity to FLC, with minimal inhibitory concentration (MIC50) values below 0.5 μg/ml. Strains Y0109, 9821, 7879, 7654, and 9296 displayed colony growth in the inhibition zone after 48 h of constant temperature incubation, indicating FLC tolerance. When strains Y0109 and 9821 were subjected to a combination of BBR and FLC, the number of colonies within the inhibition zone decreased progressively with the increase of BBR concentration following a 48 h constant temperature culture. The inhibition zone became clear with the increasing of BBR concentration and increased with the increase of FLC loading, which showed a dose-dependent relationship. Conclusion The BBR combined with FLC demonstrated efficacy against FLC-tolerant strains.
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