Severe skin diseases and systemic fungaemia are caused by Malassezia pachydermatis and Candida albicans respectively. Antifungal therapies are less effective because of chronic character of infections and high percentage of relapses. Therefore, there is a great need to develop new strategies of antifungal therapies. We previously found that oxythiamine decreases proliferation of yeast (Saccharomyces cerevisiae), therefore we suggest that thiamine antivitamins can be considered as antifungal agents. The aim of this study was the comparison of thiamine antivitamins (oxythiamine, amprolium, thiochrome, tetrahydrothiamine and tetrahydrooxythiamine) inhibitory effect on the growth rate and energetic metabolism efficiency in non-pathogenic S. cerevisiae and two potentially pathogenic species M. pachydermatis and C. albicans. Investigated species were cultured on a Sabouraud medium supplemented with trace elements in the presence (40 mg l(-1)) or absence of each tested antivitamins to estimate their influence on growth rate, enzyme activity and kinetic parameters of pyruvate decarboxylase and malate dehydrogenase of each tested species. Oxythiamine was the only antivitamin with antifungal potential. M. pachydermatis and S. cerevisiae were the most sensitive, whereas C. albicans was the least sensitive to oxythiamine action. Oxythiamine can be considered as supportive agent in superficial mycoses treatment, especially those caused by species from the genus Malassezia.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/myc.12441 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Palmarosa essential oil inhibits the growth of dandruff-associated microbes by increasing ROS production and modulating the efflux pump.
Microb Pathog
January 2025
CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow-226015, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201001, Uttar Pradesh, India. Electronic address:
We investigated the antimicrobial efficacy of seven essential oils from four plant families-Lamiaceae, Asteraceae, Zingiberaceae, and Poaceae-against microbes associated with dandruff. The antimicrobial effectiveness of these essential oils was assessed using paper disk agar diffusion and broth micro-dilution techniques. The results demonstrated that two of the essential oils significantly inhibited the growth of dandruff-associated microorganisms, with inhibition zones ranging from 5 ± 1.
View Article and Find Full Text PDFThermosensitive In Situ Ophthalmic Gel for Effective Local Delivery and Antifungal Activity of Ketoconazole Nanoparticles.
Gels
December 2024
Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand.
Fungal keratitis is a severe ocular infection caused by pathogenic fungi, leading to potential vision loss if untreated. Current antifungal treatments face limitations such as low solubility, poor corneal penetration, and limited therapeutic options. This study aimed to develop a thermosensitive in situ gel incorporating ketoconazole nanoparticles (NPs) to enhance drug solubility, stability, and antifungal activity.
View Article and Find Full Text PDFThe Disturbed Microbial Niches of Itchy Scalp.
J Cosmet Dermatol
January 2025
State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
Background: Scalp itch without evident cause is an uncomfortable symptom that annoys many people in life but lacks adequate attention in academic.
Aims: To investigate the relationship between scalp itching and microorganisms, and identify the key microbes and predicted functions associated with scalp itching, furtherly to provide useful targets for scalp itch solution.
Methods: We performed microbial comparison between 44 normal subjects and 89 subjects having scalp itching problem with un-identified origin based on 16S rRNA gene sequencing and ddPCR (digital droplet PCR), and identified itch relevant microbes and predicted functions.
Skin inflammation and lipid disorder induced by topical application of Mal f 1.
Int Immunopharmacol
January 2025
The Second Affiliated Hospital, Guangdong Provincial Key Laboratory of Allergy & Immunology, The State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China. Electronic address:
Objected: Mal f 1, the first allergen cloned from Malassezia furfur, has been found to have positive IgE reactivity in sera from patients with skin inflammation. In vitro, it has also been shown to induce maturation of dendritic cells and release inflammatory factors. However, its role in skin lipid homeostasis remains largely unexplored.
View Article and Find Full Text PDFMalassezia polysorbatinonusus sp. nov., a Novel Isolate from a Japanese Patient with Seborrheic Dermatitis.
Mycopathologia
January 2025
Teikyo University Institute of Medical Mycology (TIMM), 359 Otsuka, Hachioji, Tokyo, 192-0395, Japan.
We describe a novel Malassezia species named Malassezia polysorbatinonusus, isolated from a Japanese patient with seborrheic dermatitis. The internal transcribed spacer (ITS) region of the isolate (LSEM 4845) were only 94.7% identical to those of M.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!