terbinafine resistance

Antifungal Efficacy of Luliconazole-Loaded Nanostructured Lipid-Carrier Gel in an Animal Model of Dermatophytosis

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Researchers developed a new antifungal gel containing luliconazole loaded into tiny lipid nanoparticles to treat stubborn fungal skin infections caused by Trichophyton indotineae that resist standard terbinafine treatment. Testing in guinea pigs showed this new nanoformulation penetrated skin better and cleared infections faster (21 days) compared to regular luliconazole gel (28 days) and terbinafine-treated animals. The nanoparticle delivery system improved the drug’s ability to reach infected skin layers and showed no harmful side effects, offering promise for treating resistant fungal infections in patients.

Emerging antifungal resistance in Trichophyton mentagrophytes: insights from susceptibility profiling and genetic mutation analysis

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This study examined how common skin fungal infections caused by Trichophyton species are becoming resistant to standard antifungal treatments. Researchers tested 131 fungal isolates from China and analyzed their resistance genes to understand why some strains no longer respond to terbinafine and other antifungal drugs. They found that certain genetic mutations, particularly in the SQLE gene, make these fungi resistant to treatment and that different species have different resistance patterns. These findings help doctors better choose treatments and guide the development of new antifungal medications.

Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

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Researchers in Thailand have identified five patients with a difficult-to-treat fungal skin infection caused by Trichophyton indotineae, a type of dermatophyte that resists the commonly used antifungal drug terbinafine. This is the first time this resistant fungus has been detected in Thailand. The team developed a simple, inexpensive test using urease to help identify these resistant infections more easily. Patients responded well to the antifungal drug itraconazole after other treatments failed.

Spread of Antifungal-Resistant Trichophyton indotineae, United Kingdom, 2017–2024

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A fungal infection called Trichophyton indotineae, which originated in Asia, is rapidly spreading throughout the United Kingdom and becoming resistant to common antifungal treatments. The infection typically starts in the groin area and can spread to other parts of the body, and many cases fail to respond to standard antifungal drugs like terbinafine. Researchers tracked 157 cases over seven years and found the fungus now accounts for over a third of all dermatophyte infections sent to the UK reference laboratory. Doctors and laboratory professionals are being urged to recognize this emerging threat and consider better diagnostic and treatment strategies.

Trichophyton indotineae Infection, São Paulo, Brazil, 2024

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A businessman from São Paulo, Brazil contracted a difficult-to-treat fungal skin infection caused by Trichophyton indotineae, which is resistant to the common antifungal drug terbinafine. After terbinafine failed to help over 9 weeks, doctors switched him to itraconazole, which worked well after 8 weeks. Genetic testing showed his fungal strain had a specific resistance mutation and was most similar to a strain from Germany, suggesting he may have caught it while traveling in Europe.

Genome characterization of Trichophyton mentagrophytes genotype VII strain PG12DES from Italy

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Researchers in Italy analyzed the genetic makeup of a fungus called Trichophyton mentagrophytes that causes skin infections and appears to spread between people through sexual contact. The fungal strain studied was susceptible to all tested antifungal medications and shared similarities with a strain previously found in Moldova. This study helps doctors understand how this emerging fungal infection spreads globally and whether it’s developing resistance to treatments.

Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

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Researchers in Thailand identified five patients with a new type of fungal skin infection caused by Trichophyton indotineae, a species that resists the common antifungal drug terbinafine. These infections appeared as rashes on various parts of the body and required treatment with alternative medications like itraconazole. The findings represent the first confirmed cases in Thailand and suggest this resistant fungus may be spreading globally. The study also showed that a simple urease test could help doctors identify this resistant strain quickly without waiting for complex genetic testing.

Recalcitrant dermatophytosis due to Trichophyton indotineae: A case series from Sarawak, Malaysia

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Three patients in Malaysia had persistent skin fungal infections caused by Trichophyton indotineae that did not respond to standard antifungal treatments. Genetic testing revealed these fungal strains carried a specific mutation making them resistant to terbinafine, the typical first-line treatment. While azole-based antifungals showed variable effectiveness depending on the specific drug and dose used, one patient achieved complete cure with voriconazole therapy. The study highlights the growing problem of drug-resistant fungal infections and the importance of targeted treatment based on laboratory testing.

Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

mycolabadmin

Researchers in Thailand have identified the first cases of a new resistant fungal skin infection caused by Trichophyton indotineae. This fungus is resistant to a commonly used antifungal drug called terbinafine and causes persistent skin rashes on various body parts. The study describes five patients whose infections were finally identified through genetic testing and who responded well to alternative antifungal treatment with itraconazole. This discovery suggests the fungus is now spreading in Thailand and doctors should watch for it.

Emergence of resistant dermatophytosis caused by Trichophyton indotineae: First case series in Thailand

mycolabadmin

Doctors in Thailand have identified a new drug-resistant fungal infection caused by Trichophyton indotineae, a fungus that doesn’t respond to common antifungal medication terbinafine. Five patients were diagnosed with this resistant skin infection that caused rashes on various body parts and failed to improve with standard treatments. The research shows that a simple urease test can help doctors quickly identify this resistant fungus, and a different drug called itraconazole appears to work better for treatment. This is the first time this resistant fungus has been confirmed in Thailand, suggesting it is spreading globally.

Research Keyword: terbinafine resistance