Medicinal – Page 101

The first described case of Fomitiporella micropora infection in humans: A heart transplant recipient diagnosed by fungal PCR

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A heart transplant patient developed a slow-growing lump on his shin that turned out to be caused by a rare fungus never before seen in humans. Doctors removed the lump surgically and used advanced genetic testing to identify the unusual fungus as Fomitiporella micropora. The patient received antifungal medication and the wound healed completely, highlighting how modern genetic tests can identify rare infections that traditional methods might miss.

Long term worsening of amyloid pathology, cerebral function, and cognition after a single inoculation of beta-amyloid seeds with Osaka mutation

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Researchers found that a single exposure to mutated amyloid-beta proteins (Aβ Osaka) in the brains of genetically modified mice caused lasting damage over four months. The mutated proteins triggered more severe memory loss, brain connectivity problems, and synapse damage compared to normal amyloid-beta. This suggests that even one encounter with mutated amyloid proteins can set off a chain reaction of disease progression that persists long after initial exposure.

Emerging Infections Network Survey of Screening for Cryptococcal Antigenemia, United States, 2024

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Researchers surveyed infectious disease doctors across the United States about their use of a simple blood test that detects cryptococcal fungal infections in HIV patients before symptoms appear. The test, called cryptococcal antigen (CrAg) screening, can prevent serious illness and death if caught early, but the survey found that many doctors are not using it consistently. About 42% of doctors were unsure about the benefits of the test, and another 32% were confused about current screening recommendations, revealing a need for better education about this important preventive tool.

Cryptococcus neoformans/gattii and Histoplasma capsulatum var. capsulatum infections on tissue sections: Diagnostic pitfalls and relevance of an integrated histomolecular diagnosis

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This research addresses the challenge of identifying two common fungal infections (cryptococcosis and histoplasmosis) when examining tissue samples under a microscope. The study found that these infections often look similar and can be confusing for pathologists. The researchers discovered that looking for specific fungal features, particularly ‘dented-looking’ yeasts, can help differentiate cryptococcosis from histoplasmosis. When standard laboratory tests on fresh tissue aren’t available, using molecular testing (genetic analysis) on preserved tissue samples can successfully identify the fungus in about 75% of cases.

Sustainable Extraction and Multimodal Characterization of Fungal Chitosan from Agaricus bisporus

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Researchers successfully extracted chitosan from button mushrooms (Agaricus bisporus) using environmentally friendly chemical processes. This fungal-derived chitosan offers a sustainable alternative to traditional sources from shellfish and avoids issues like allergies and harsh chemical pollution. The extracted material showed promising properties for medical applications including wound healing and drug delivery systems.

Revealing the metabolic potential and environmental adaptation of nematophagous fungus, Purpureocillium lilacinum, derived from hadal sediment

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Scientists discovered a special fungus living in the deepest part of the ocean (Mariana Trench) that can survive extreme pressure and produce compounds with disease-fighting properties. This fungus, Purpureocillium lilacinum, showed promise against bacteria, cancer cells, and parasitic worms. The research revealed how this fungus adapts to survive in one of Earth’s most extreme environments, potentially opening new sources for developing medicines and biological pest control.

Multi-omics Analysis of Experimentally Evolved Candida auris Isolates Reveals Modulation of Sterols, Sphingolipids, and Oxidative Stress in Acquired Amphotericin B Resistance

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Researchers studied how the fungus Candida auris develops resistance to amphotericin B, an important antifungal drug. By evolving two laboratory strains of this fungus under drug pressure, they discovered two different ways the fungus can become resistant: one through stress management genes, the other through changes in its protective lipids. These findings help explain why some clinical infections with this dangerous fungus are so hard to treat.

Nature-Inspired Biphenyls and Diphenyl Ethers: Design, Synthesis, and Biological Evaluation

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Researchers synthesized compounds inspired by naturally occurring substances found in brown algae called phlorotannins. These synthetic compounds were tested against fungi that damage rice crops and other plants. Some methylated versions showed promise in slowing fungal growth, suggesting they could potentially be developed into new natural fungicides. However, the compounds were not effective against bacteria, indicating more research is needed.

Analysis of the chitin synthase gene family in Ganoderma lucidum: its structure, phylogeny, and expression patterns

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Scientists studied eight chitin synthase genes in Ganoderma lucidum (reishi mushroom), which are important for building the fungal cell wall and controlling growth. They found that different genes are active at different stages of mushroom development and that six of these genes become more active when exposed to high temperatures, suggesting they help the mushroom survive heat stress. This research helps us understand how mushrooms grow and develop, which could lead to better cultivation methods.

Clinico-mycological study of superficial mycoses and correlation with anti-fungal susceptibility among the Candida isolates in a teaching institution of Western India

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This study examined fungal skin infections in 330 patients in Western India, identifying which fungi cause these infections and which antifungal drugs work best. Researchers found that Candida yeasts were especially common in nail infections while Trichophyton fungi were more common in skin infections. The antifungal drug caspofungin was most effective against Candida, while the commonly used drug fluconazole showed increasing resistance.

Research Topic: Medicinal