Antifungal Activity of a Medical-Grade Honey Formulation against Candida auris

Journal of Fungi

Theun de Groot¹  Tom Janssen¹  Dirk Faro¹  Jacques F. Meis¹  Anuradha Chowdhary²  Niels A. J. Cremers³ 

[1] Department of Medical Microbiology and Infectious Diseases, Canisius Wilhelmina Hospital (CWZ), 6532 SZ Nijmegen, The Netherlands;Department of Medical Mycology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi 110007, India;Triticum Exploitatie BV, Sleperweg 44, 6222 NK Maastricht, The Netherlands;

关键词: Candida auris;    candidiasis;    infection;    genotyping;    antifungal resistance;    medical-grade honey;   

DOI  :  10.3390/jof7010050

来源: DOAJ

【 摘 要 】

Candida auris is a pathogenic yeast causing outbreaks in intensive care units with high mortality rates. The treatment of C. auris colonization is challenging due to high resistance rates. A potential alternative antifungal treatment is medical-grade honey. In this study the susceptibility of C. auris and other Candida species to the medical-grade honey-based formulation L-Mesitran^® Soft was investigated. The medical-grade honey formulation reduced the growth of C. auris and other Candida species in a dose-dependent manner. This inhibition was not only due to the honey component, as treatment with an identical concentration of this component only was less effective and even stimulated the growth of C. albicans and C. glabrata, supporting the interpretation that supplements in the medical-grade honey formulation enhanced the antimicrobial activity. Increasing the concentration of the honey component to 40%, as is also present in an undiluted medical-grade honey formulation, lead to a 1- to 4-log inhibition of all Candida species. Unprocessed local honey reduced the growth of nearly all Candida species more strongly than medical-grade honey. C. auris’ susceptibility to the medical-grade honey formulation did not depend on geographic origin or resistance profile, although the multiresistant isolates tended to be more susceptible. Altogether, medical-grade honey formulation has a strong antifungal activity against C. auris and other Candida species. Future studies should demonstrate whether the treatment of open wounds or skin colonized with C. auris is feasible and effective in the clinical setting.

【 授权许可】

Unknown