cryptococcosis – mycolab.ai

What Do We Know About Cryptococcus spp. in Portugal? One Health Systematic Review in a Comprehensive 13-Year Retrospective Study (2013–2025)

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This study examines cryptococcosis, a fungal infection that affects both animals and humans, across Portugal from 2013-2025. Researchers found that about 4.5% of animal samples tested positive for Cryptococcus species, with infections most common in dogs and cats. The infections peaked during summer months and were most prevalent in central Portugal, with different fungal species affecting different animal types. The research emphasizes the importance of coordinated monitoring across animals, humans, and the environment to better understand and control this disease.

Mediastinal cryptococcoma as part of disseminated cryptococcosis in HIV-negative pregnant woman with Myasthenia Gravis: Autopsy case report

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A 29-year-old pregnant woman with myasthenia gravis, a condition requiring long-term immune-suppressing medications, died from a widespread fungal infection caused by Cryptococcus. Despite being HIV-negative, her weakened immune system made her vulnerable to this serious infection. An autopsy revealed the infection had spread throughout her body, including her heart, brain, lungs, and kidneys. This case highlights how fungal infections like cryptococcosis can affect people without HIV when their immune systems are compromised by other conditions or medications.

Antifungal potential of Rhinacanthus nasutus extracts against the pathogenic fungus Cryptococcus neoformans

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Researchers studied snake jasmine (Rhinacanthus nasutus), a plant used in traditional Thai medicine, to see if it could fight fungal infections caused by Cryptococcus neoformans, a dangerous pathogen that kills many people worldwide. They found that extract from the plant’s roots effectively slowed fungal growth and weakened the pathogen’s defenses by reducing its ability to produce protective melanin and capsules. Importantly, when combined with amphotericin B, a common antifungal drug, the plant extract worked even better together, suggesting it could enhance existing treatments.

Antifungal Activity of Selected Naphthoquinones and Their Synergistic Combination with Amphotericin B Against Cryptococcus neoformans H99

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Researchers tested five compounds called naphthoquinones for their ability to fight a dangerous fungal infection called cryptococcosis. They found that one compound called 2-MNQ works especially well when combined with the standard antifungal drug amphotericin B, making the treatment more effective. This discovery could lead to better treatments for people with weakened immune systems who are vulnerable to this infection.

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.

Conjugation of a Cryptococcus neoformans-derived metalloprotease to antifungal-loaded PLGA nanoparticles treats neural cryptococcosis in an in vitro model

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Researchers developed special nanoparticles that can cross the protective barrier surrounding the brain by using a protein from a fungal infection. These nanoparticles are loaded with an antifungal drug and can effectively treat cryptococcal brain infections in laboratory tests. This approach offers a new way to deliver medicines to the brain without invasive procedures, potentially helping patients with serious brain infections that are currently difficult to treat.

Deubiquitinase Ubp5 is essential for pulmonary immune evasion and hematogenous dissemination of Cryptococcus neoformans

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This study shows that removing a fungal enzyme called Ubp5 from Cryptococcus neoformans significantly weakens the fungus and allows the body’s immune system to fight the infection more effectively. The fungus without Ubp5 loses its ability to hide from the immune system, triggering stronger protective immune responses including more T cells and beneficial inflammatory signals. This research suggests that targeting Ubp5 could be a promising strategy to help treat cryptococcal infections by enhancing the body’s natural defense mechanisms.

Neurological Sequelae After Paediatric Cryptococcal Meningitis

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This research reviewed 868 children worldwide who had cryptococcal meningitis, a serious fungal brain infection. One in five surviving children experienced long-term neurological problems, most commonly vision loss, weakness, learning difficulties, or hearing loss. Importantly, no child in the medical literature received proper neurological testing after recovery, meaning the actual burden of problems is likely much higher. The study emphasizes the critical need for formal follow-up assessments and rehabilitation services for these children to help them achieve the best possible outcomes.

Immunometabolic reprogramming in macrophages infected with active and dormant Cryptococcus neoformans: differential modulation of respiration, glycolysis, and fatty acid utilization

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This research examines how immune cells (macrophages) respond differently to active versus dormant forms of a dangerous fungus called Cryptococcus neoformans. The dormant form causes the immune cells to accumulate fatty acids differently than the active fungus, which may help the fungus establish long-term infections. Understanding these differences could lead to better treatments for cryptococcal infections, which are particularly dangerous for immunocompromised individuals.

Research Keyword: cryptococcosis