Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin

<i>Candida auris</i> readily colonizes skin and efficiently spreads among patients in healthcare settings worldwide. Given the capacity of this drug-resistant fungal pathogen to cause invasive disease with high mortality, hospitals frequently employ chlorhexidine bathing to reduce skin c...

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Main Authors: Chad J. Johnson, Emily F. Eix, Brandon C. Lam, Kayla M. Wartman, Jennifer J. Meudt, Dhanansayan Shanmuganayagam, Jeniel E. Nett
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Journal of Fungi
Subjects:
Online Access:https://www.mdpi.com/2309-608X/7/10/804
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author Chad J. Johnson
Emily F. Eix
Brandon C. Lam
Kayla M. Wartman
Jennifer J. Meudt
Dhanansayan Shanmuganayagam
Jeniel E. Nett
author_facet Chad J. Johnson
Emily F. Eix
Brandon C. Lam
Kayla M. Wartman
Jennifer J. Meudt
Dhanansayan Shanmuganayagam
Jeniel E. Nett
author_sort Chad J. Johnson
collection DOAJ
description <i>Candida auris</i> readily colonizes skin and efficiently spreads among patients in healthcare settings worldwide. Given the capacity of this drug-resistant fungal pathogen to cause invasive disease with high mortality, hospitals frequently employ chlorhexidine bathing to reduce skin colonization. Using an ex vivo skin model, we show only a mild reduction in <i>C. auris</i> following chlorhexidine application. This finding helps explain why chlorhexidine bathing may have failures clinically, despite potent in vitro activity. We further show that isopropanol augments the activity of chlorhexidine against <i>C. auris</i> on skin. Additionally, we find both tea tree (<i>Melaleuca alternifolia</i>) oil and lemongrass (<i>Cymbopogon flexuosus</i>) oil to further enhance the activity of chlorhexidine/isopropanol for decolonization. We link this antifungal activity to individual oil components and show how some of these components act synergistically with chlorhexidine/isopropanol. Together, the studies provide strategies to improve <i>C. auris</i> skin decolonization through the incorporation of commonly used topical compounds.
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spelling doaj.art-e3c495961ee840c7848b42de86abfe152023-11-22T18:46:42ZengMDPI AGJournal of Fungi2309-608X2021-09-0171080410.3390/jof7100804Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skinChad J. Johnson0Emily F. Eix1Brandon C. Lam2Kayla M. Wartman3Jennifer J. Meudt4Dhanansayan Shanmuganayagam5Jeniel E. Nett6Department of Medicine, University of Wisconsin, Madison, WI 53706, USADepartment of Medicine, University of Wisconsin, Madison, WI 53706, USADepartment of Medicine, University of Wisconsin, Madison, WI 53706, USADepartment of Medicine, University of Wisconsin, Madison, WI 53706, USADepartment of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USADepartment of Animal and Dairy Sciences, University of Wisconsin, Madison, WI 53706, USADepartment of Medicine, University of Wisconsin, Madison, WI 53706, USA<i>Candida auris</i> readily colonizes skin and efficiently spreads among patients in healthcare settings worldwide. Given the capacity of this drug-resistant fungal pathogen to cause invasive disease with high mortality, hospitals frequently employ chlorhexidine bathing to reduce skin colonization. Using an ex vivo skin model, we show only a mild reduction in <i>C. auris</i> following chlorhexidine application. This finding helps explain why chlorhexidine bathing may have failures clinically, despite potent in vitro activity. We further show that isopropanol augments the activity of chlorhexidine against <i>C. auris</i> on skin. Additionally, we find both tea tree (<i>Melaleuca alternifolia</i>) oil and lemongrass (<i>Cymbopogon flexuosus</i>) oil to further enhance the activity of chlorhexidine/isopropanol for decolonization. We link this antifungal activity to individual oil components and show how some of these components act synergistically with chlorhexidine/isopropanol. Together, the studies provide strategies to improve <i>C. auris</i> skin decolonization through the incorporation of commonly used topical compounds.https://www.mdpi.com/2309-608X/7/10/804<i>Candida auris</i>biofilmchlorhexidineskinporcineessential oil
spellingShingle Chad J. Johnson
Emily F. Eix
Brandon C. Lam
Kayla M. Wartman
Jennifer J. Meudt
Dhanansayan Shanmuganayagam
Jeniel E. Nett
Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
Journal of Fungi
<i>Candida auris</i>
biofilm
chlorhexidine
skin
porcine
essential oil
title Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
title_full Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
title_fullStr Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
title_full_unstemmed Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
title_short Augmenting the Activity of Chlorhexidine for Decolonization of <i>Candida auris</i> from Porcine skin
title_sort augmenting the activity of chlorhexidine for decolonization of i candida auris i from porcine skin
topic <i>Candida auris</i>
biofilm
chlorhexidine
skin
porcine
essential oil
url https://www.mdpi.com/2309-608X/7/10/804
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