efflux pumps – Page 2

Genomic Insights of Candida krusei, an Emerging Fungal Pathogen With Intrinsic Antifungal Resistance

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Candida krusei is a yeast that causes serious bloodstream infections, particularly in people with weakened immune systems. Unlike many other fungi, it naturally resists common antifungal drugs like fluconazole, making infections hard to treat. The organism can form protective biofilms and has multiple genetic mechanisms that help it survive antifungal treatment. Researchers are exploring new drugs and treatment strategies to combat this growing health threat, especially in hospitals.

Evaluation of Antifungal Activity Against Candida albicans Isolates From HIV-Positive Patients with Oral Candidiasis in a Major Referral Hospital, West Java, Indonesia

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This study examined fungal infections of the mouth in HIV-positive patients in Indonesia. Researchers identified different types of Candida fungi and tested how well common antifungal medications worked against them. While most medications were effective, they found some cases of drug resistance, suggesting the importance of proper testing to choose the best treatment for each patient.

Evaluation of Antifungal Activity Against Candida albicans Isolates From HIV-Positive Patients with Oral Candidiasis in a Major Referral Hospital, West Java, Indonesia

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Researchers in West Java, Indonesia studied fungal infections in the mouths of HIV-positive patients to understand which antifungals work best. They found that a common fungal species called Candida albicans was present in all patients tested, though some resistant strains were discovered. The study showed that certain antifungal medications like voriconazole worked better than others, highlighting the importance of testing which specific medications will be effective for each patient rather than guessing.

The cyclase-associated protein contributes to antifungal susceptibility and virulence in Aspergillus fumigatus

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Researchers found that removing a specific protein called CAP from a dangerous mold called Aspergillus fumigatus makes it much weaker and easier to kill with antifungal drugs. This mold normally causes serious lung infections in people with weak immune systems. The study showed that CAP helps the mold grow and resist medicines, and blocking it could be a new way to treat these dangerous infections.

The transcription factor RttA contributes to sterol regulation and azole resistance in Aspergillus fumigatus

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Researchers corrected the mislabeled rttA gene in the dangerous fungus Aspergillus fumigatus and discovered it acts as a master control switch for sterol production and antifungal drug resistance. When this gene is active, it helps fungi survive azole medications by boosting production of ergosterol, a critical component of fungal cell membranes. This discovery reveals how fungi develop resistance to our frontline antifungal treatments and suggests new ways to combat these life-threatening infections.

Exposure to Tebuconazole Drives Cross-Resistance to Clinical Triazoles in Aspergillus fumigatus

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Farmers use a fungicide called tebuconazole to protect crops, but this chemical is similar to medicines doctors use to treat serious fungal infections in patients. A new study shows that when the fungus Aspergillus fumigatus is exposed to tebuconazole, it becomes resistant not just to this pesticide, but also to the clinical antifungal drugs used in hospitals. The fungus develops resistance mechanisms that allow it to survive high doses of these medications. This research highlights an important public health concern: the overuse of similar chemicals in agriculture can undermine our ability to treat dangerous fungal infections in people.

Comprehensive analysis of the mechanisms conferring resistance to phenamacril in the Fusarium species

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Fusarium fungi cause serious diseases in crops like wheat, rice, and vegetables worldwide, leading to significant food losses and contamination with harmful toxins. Phenamacril is a modern fungicide designed to fight these fungi by targeting a specific protein called myosin-5. However, the fungi have developed resistance to this fungicide through genetic changes and other mechanisms, making it less effective over time. Farmers need to use multiple strategies including crop rotation and resistant plant varieties rather than relying only on fungicides to successfully manage these diseases.

Overexpression of efflux pump and biofilm associated genes in itraconazole resistant Candida albicans isolates causing onychomycosis

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This study examined why some fungal nail infections caused by Candida albicans don’t respond to itraconazole treatment. Researchers found that resistant fungi have higher levels of genes that pump the antifungal drug out of their cells and genes that help them form protective biofilm layers. These findings suggest that combining itraconazole with drugs that block these pumps or disrupt biofilms could be more effective for treating stubborn fungal nail infections.

Comprehensive analysis of the mechanisms conferring resistance to phenamacril in the Fusarium species

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Fusarium fungi cause serious diseases in crops like wheat, corn, and fruits, causing huge losses in agriculture worldwide. Phenamacril is a new antifungal drug designed specifically to fight these fungi by blocking a protein they need to grow. However, the fungi are developing resistance to this drug through genetic mutations and other biological mechanisms, making it less effective over time. Understanding how this resistance develops helps scientists develop better strategies to maintain the drug’s effectiveness and protect our food supply.

The Ptk2-Pma1 pathway enhances tolerance to terbinafine in Trichophyton rubrum

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Researchers discovered that a protein called TrPtk2 helps dermatophytes resist terbinafine, a common antifungal medicine. They found that blocking this protein makes the fungus more susceptible to terbinafine. Additionally, they discovered that omeprazole, a stomach medication approved for human use, can be combined with terbinafine to make it more effective against resistant fungal infections.

Research Keyword: efflux pumps