Filamentous fungi – Page 3

Identification of Filamentous Fungi: An Evaluation of Three MALDI-TOF Mass Spectrometry Systems

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This study compared three laboratory machines that identify fungi using a technique called MALDI-TOF mass spectrometry. Researchers tested 77 different fungal samples on each machine to see which one worked best. All three machines were useful for routine lab work, but they each worked best at different time points after the fungi started growing. The study shows that labs should be aware of when to test their samples for the most accurate results.

Fusarium Corneal Abscess: A Case Report

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A healthy 20-year-old man developed a serious fungal eye infection caused by Fusarium, a soil fungus, despite having no typical risk factors like eye injury or contact lens wear. Doctors diagnosed the infection through laboratory tests showing fungal filaments and growing the organism in culture. The patient required multiple treatments including antifungal eye drops, injections directly into the cornea, and a graft from amniotic membrane (placenta tissue) to save his vision. The case demonstrates that fungal eye infections can occasionally occur in completely healthy people without obvious causes.

Identification of Challenging Dermatophyte Species Using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

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This study shows that a specialized technique called MALDI-TOF mass spectrometry can accurately identify fungal skin infections by analyzing protein patterns. Researchers created a customized library of local fungal species that, when combined with commercial databases, improved identification accuracy from 16% to 91%. This advancement helps doctors quickly identify the exact type of fungal infection patients have, enabling faster and more appropriate treatment decisions.

Kre6-dependent β-1,6-glucan biosynthesis only occurs in the conidium of Aspergillus fumigatus

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Researchers discovered that a specific sugar compound called β-1,6-glucan is found in the spore-like reproductive structures (conidia) of the fungus Aspergillus fumigatus but not in its growing filaments (mycelium). Using advanced nuclear magnetic resonance technology, they identified the KRE6 gene as responsible for making this sugar and found that removing this gene makes the fungus more vulnerable to certain chemicals that damage fungal cell walls.

Comparison of the Filamentous Fungi Library v4.0 MALDI Biotyper Platform vs MSI-2 performance for identifying filamentous fungi from liquid cultures

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This study compared two advanced technologies for identifying dangerous fungi in clinical samples. The MALDI Biotyper FFLv4.0 system identified about 96% of fungi correctly when using liquid culture samples, outperforming the MSI-2 database which identified about 78.5%. Both systems had difficulty with certain difficult-to-distinguish species, especially within Aspergillus and Fusarium groups, but performed well with Mucorales fungi. The findings suggest that continuous updating of these fungal identification libraries is essential for improving patient care.

Submerged Fermentation of Rhizopus sp. for l-asparaginase Production in Lymphoma Therapy

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Researchers developed a new way to produce an anti-cancer enzyme called L-asparaginase using a fungus called Rhizopus, which could offer a safer alternative to current bacterial sources. They designed and tested a special bioreactor system that allows the fungus to grow as a biofilm, significantly increasing enzyme production. The system achieved enzyme activity levels much higher than previous laboratory methods, suggesting it could be scaled up for industrial pharmaceutical production.

Sarocladium implicatum: an unusual agent of opportunistic infection in a COVID-19 patient

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A 64-year-old man hospitalized with COVID-19 developed a serious fungal infection from Sarocladium implicatum, an unusual fungus rarely found in humans. The infection appeared in his bloodstream and lungs while his immune system was severely weakened by the virus and medications. Doctors identified the fungus using genetic testing and successfully treated him with voriconazole antifungal medication. This case highlights how COVID-19 patients in intensive care are vulnerable to rare opportunistic infections that require specialized laboratory testing to identify and treat.

Endocarditis caused by Scopulariopsis brevicaulis with disseminated emboli and multiple vascular aneurysms: A case report and literature review

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A 61-year-old man with a prosthetic aortic valve developed a rare fungal infection caused by Scopulariopsis brevicaulis, a mold usually associated with nail infections. The infection spread throughout his body, causing multiple strokes and aneurysms that required emergency surgery and treatment with various antifungal medications. This case highlights the serious complications that can occur when this typically harmless fungus invades the heart and demonstrates the challenges doctors face in treating such rare infections, as the fungus was resistant to many common antifungal drugs.

Performance of the VITEK® MS system for the identification of filamentous fungi in a microbiological laboratory in Chile

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This study tested a rapid fungal identification system called VITEK® MS in a Chilean hospital laboratory. The system uses mass spectrometry technology to identify mold species quickly and accurately, often within 48-72 hours. Results showed the system correctly identified over 91% of fungal samples without any mistakes, making it a valuable tool for diagnosing serious fungal infections in hospitalized patients.

Fungal Innovations—Advancing Sustainable Materials, Genetics, and Applications for Industry

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Fungi can be engineered to create sustainable, eco-friendly materials that could replace traditional plastics and leather. Scientists are using advanced genetic tools to control how fungi grow and what they produce, enabling the creation of customized materials with specific properties. These fungal-based materials are biodegradable, require less water and energy to produce, and show promise for applications in packaging, clothing, and building materials. With improved manufacturing processes and genetic engineering, fungi could revolutionize how we make everyday products.

Research Keyword: Filamentous fungi