Disease: tinea unguium

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

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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.

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The association of Yarrowia lipolytica with onychomycosis

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A 20-year-old woman suffered from a persistent toenail infection that didn’t respond to several standard antifungal treatments over five years. Researchers identified the culprit as Yarrowia lipolytica, a rare yeast not previously known to cause nail infections. Testing showed this yeast was resistant to common antifungal medications the patient had received, explaining why previous treatments failed. This unusual case highlights the importance of properly identifying fungal pathogens and testing them for drug resistance before starting treatment.

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Safety and efficacy of the swift microwave device in patients with mild-to-moderate onychomycosis: Protocol of an open-label, randomized, dose-finding pilot study

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Onychomycosis, commonly known as toenail fungus, is a widespread infection affecting millions of people. Current treatments often fail or cause side effects. This study tests a new microwave device that heats the infected nail to kill the fungus without harming surrounding tissue or causing systemic side effects. Researchers are testing three different treatment schedules to find the most effective approach.

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Epidermophyton floccosum, an etiological agent of tinea pedis and tinea unguium: about two cases

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Two elderly patients with toenail and foot fungal infections caused by Epidermophyton floccosum were diagnosed using modern molecular testing methods. Traditional microscopic examination alone was difficult, but real-time PCR provided accurate identification. Both patients were treated with terbinafine, a common antifungal medication. The study highlights how modern DNA testing improves diagnosis compared to older methods.

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Shifting etiological agents of dermatophytosis: a molecular epidemiological study from Iran

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Researchers in Iran studied fungal infections of the scalp and nails using modern DNA testing methods. They found that the main fungus causing scalp infections (T. tonsurans) remains the most common, but a new species (T. indotineae) is increasingly causing nail infections and is resistant to common antifungal medicines. The study shows that traditional identification methods often misidentify these fungi, highlighting the importance of molecular testing for accurate diagnosis and treatment.

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Safety and Efficacy of a 48-Month Efinaconazole 10% Solution Treatment/Maintenance Regimen: 24-Month Daily Use Followed by 24-Month Intermittent Use

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Researchers studied a 4-year treatment plan for toenail fungal infections using efinaconazole, an antifungal solution applied daily for 2 years, then 2-3 times weekly for another 2 years. The treatment was safe and effective, with all patients who achieved a cure maintaining it through the maintenance phase, and even some non-cured patients improving further. The study included many elderly patients, showing the treatment is safe across all age groups and could help prevent infection relapse.

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Epidemiological profile of dermatophytes at the parasitology-mycology laboratory at Mohammed VI University Hospital in Oujda

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This study examined fungal skin infections caused by dermatophytes in a Moroccan hospital over four years, analyzing 950 samples. The researchers found that nail infections (onychomycosis) were most common, particularly in people over 50 years old, while scalp infections mainly affected children. The fungus Trichophyton rubrum was responsible for most infections, though Microsporum canis increasingly caused scalp infections, likely due to increased pet ownership in Morocco. The study emphasizes the importance of proper laboratory testing to identify the specific fungus and choose appropriate treatment.

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