antifungal resistance – Page 10

Aspergillus fumigatus ctf1 – a novel zinc finger transcription factor involved in azole resistance

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Researchers discovered that a gene called ctf1 in a harmful fungus called Aspergillus fumigatus helps control how resistant the fungus is to antifungal medications like voriconazole. When this gene is removed, the fungus becomes more resistant to these drugs because it pumps them out more efficiently. Understanding this mechanism could help doctors develop better treatments for serious fungal infections in vulnerable patients.

Clinical Significance and Therapeutic Challenges of Scedosporium spp. and Lomentospora prolificans Isolates in a Single-Center Cohort of Lung Transplant Recipients

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This study examined dangerous fungal infections caused by Scedosporium and Lomentospora species in lung transplant patients at a Spanish hospital. Researchers found these infections were uncommon but very serious, with high death rates especially from the Lomentospora type. Current antifungal drugs often don’t work well against these fungi, highlighting the need for better treatment options.

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

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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.

Urosepsis From Nephrolithiasis Caused by Candida glabrata: A Rare Etiology of Urinary Sepsis in an Immunocompetent Patient

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A 41-year-old man with kidney stones developed a serious bloodstream infection caused by Candida glabrata, a type of yeast fungus that rarely infects healthy people. Although he initially received antibiotics, his condition worsened until doctors identified the fungal infection through blood tests. After placing a drainage tube in his kidney and treating him with an antifungal medication called micafungin, he recovered well. This case highlights the importance of considering fungal infections when standard antibiotics fail to treat kidney stone-related infections.

Targeted long-read sequencing analysis and antifungal susceptibility profiles of Sporothrix schenckii isolates from Thailand

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Researchers in Thailand studied a fungal infection called sporotrichosis caused by Sporothrix schenckii, which infects both cats and humans. Using advanced DNA sequencing technology from Oxford Nanopore, they identified and classified 26 fungal samples and tested how well common antifungal medications worked against them. They found that calmodulin gene sequencing was better than the standard ITS test for identifying the fungus species, and that about one-third of the samples showed reduced sensitivity to the main treatment drug, itraconazole.

Ploidy plasticity drives fungal resistance to azoles used in agriculture and clinics

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Agricultural fungicides can cause fungal pathogens like Candida tropicalis to change their genetic structure and become resistant to clinical antifungal drugs. When exposed to agricultural azole fungicides, these fungi can shift from their normal two-copy genetic state to a one-copy state, making them harder to treat with hospital medicines. This study reveals how the same drugs used on farms can create dangerous drug-resistant fungi that threaten human health.

Breaking down biofilms across critical priority fungal pathogens: proteomics and computational innovation for mechanistic insights and new target discovery

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This comprehensive review examines how scientists are fighting dangerous fungal infections that form protective biofilms resistant to current antifungal drugs. Researchers are using advanced protein analysis techniques (proteomics) and artificial intelligence-based computational tools to identify new targets for drug development against four critical fungal pathogens that cause life-threatening infections like meningitis and lung infections. By combining these technologies, scientists can better understand how these fungal biofilms form and develop more effective treatments.

Disseminated Scedosporium boydii infection with pulmonary and cerebral involvement in a patient with COPD: A case report

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A 51-year-old man with chronic lung disease developed a life-threatening brain infection caused by a rare fungus called Scedosporium boydii. The infection started in his lungs and spread to his brain, causing a fluid-filled abscess. Despite treatment with antifungal medications and surgery, the patient died because the initial treatment was incomplete and the infection had time to progress to his brain.

Changing Climate, Changing Candida: Environmental and Social Pressures on Invasive Candidiasis and Antifungal Resistance in Latin America

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Invasive fungal infections caused by Candida yeasts are becoming more serious in Latin America, with drug-resistant strains spreading rapidly in hospitals. The problem is worsened by climate change and overuse of antifungal medicines in agriculture, which help resistant fungi survive and spread. Many hospitals in the region lack modern diagnostic tools to quickly identify the specific type of infection, delaying treatment. The authors recommend a comprehensive approach combining better environmental monitoring, smarter use of antifungal drugs, improved diagnostic access, and coordinated public health efforts across the region.

RttA, a Zn2-Cys6 transcription factor in Aspergillus fumigatus, contributes to azole resistance

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Researchers discovered that a fungal protein called RttA plays a key role in helping Aspergillus fumigatus resist azole antifungal drugs. By studying mutant strains, they found that RttA acts as a master switch controlling genes that reduce the effectiveness of antifungal medications. This finding is important because it could help develop new strategies to treat fungal infections that are becoming resistant to current medications.

Research Keyword: antifungal resistance