In vitro effects of glycyrrhetinic acid and hyaluronic acid on the growth of vulvovaginal Candida albicans and other yeasts

  • Martina Stevan U.O.C. Microbiology and Virology, S. Bortolo Hospital, Vicenza, Italy.
  • Eleonora Fusato U.O.C. Microbiology and Virology, S. Bortolo Hospital, Vicenza, Italy.
  • Decio Armanini Department of Medical and Surgical Sciences, University of Padua, Padua, Italy.
  • Giulio Bertoloni Department of Molecular Medicine, Padua, Italy.
  • Francesco De Seta Department of Obstetrics and Gynecology, IRCCS Burlo Garofolo, University of Trieste, Italy.
  • Christian Leli Department of Experimental Medicine, Microbiology Section, University of Perugia, Italy.
  • Mario Rassu | mario.rassu@aulss8.veneto.it U.O.C. Microbiology and Virology, S. Bortolo Hospital, Vicenza, Italy. http://orcid.org/0000-0002-5011-5426

Abstract

Aims. The present study aimed to test the in vitro activity against Candida albicans and non-albicans strains of 18-β glycyrrhetinic acid (18-β GA) and hyaluronic acid (HA), both alone and in combination. This antimicrobial activity was assessed using the National Committee for Clinical Laboratory Standards (NCCLS) method on Candida strains that were isolated from patients with recurrent vulvovaginal candidiasis (RVVC).
Results
. Our results demonstrate that the anti-Candida activity is independent from antifungal susceptibility level and the fact that the growth inhibition is stronger at acidic pH level makes the two drugs a promising biological alternative for the topical treatment of vulvovaginal candidiasis (VVC) and RVVC.
Conclusions
. Furthermore, the reduction of both budding cells formation and germ tube elongation, on mammalian cell monolayers, may explain the observed growth inhibition and suggest a decreased virulence, respectively.

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Published
2017-12-30
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Original Articles
Keywords:
18-β glycyrrhetinic acid, hyaluronic acid, Candida albicans, Candida non-albicans, recurrent vulvovaginal candidiasis.
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How to Cite
Stevan, M., Fusato, E., Armanini, D., Bertoloni, G., De Seta, F., Leli, C., & Rassu, M. (2017). In vitro effects of glycyrrhetinic acid and hyaluronic acid on the growth of vulvovaginal Candida albicans and other yeasts. Microbiologia Medica, 32(4). https://doi.org/10.4081/mm.2017.6974