Disease: meningoencephalitis

The emerging fungal pathogen Cryptococcus gattii: Epidemiology, pathogenesis, immunomodulatory attributes, and drug susceptibility

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Cryptococcus gattii is a dangerous fungal infection that can affect even healthy people, unlike most fungal infections that target those with weak immune systems. The fungus uses clever tricks to hide from the immune system, including creating protective capsules and producing melanin. Current antifungal drugs like fluconazole are becoming less effective as the fungus develops resistance, making this an urgent public health concern that requires better treatments and early detection.

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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.

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

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Researchers studied a protein called Ubp5 that helps the fungus Cryptococcus neoformans cause disease in humans. By removing this protein, the fungus became much less harmful and the immune system could fight it better. The fungus with the missing protein had problems with its outer coating, couldn’t hide as well from the immune system, and couldn’t spread to the brain. This suggests that blocking Ubp5 could be a new way to help the body defend against this dangerous fungal infection.

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A Review on Aspergillosis in Turkey: As a Main Fungal Disease in Poultry

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Aspergillosis is a serious fungal disease affecting turkeys, especially young birds, caused by breathing in fungal spores from moldy hay, compost or poorly ventilated housing. The disease causes respiratory problems, can spread to other organs, and can kill 30-50% of affected flocks. Prevention through good ventilation, clean housing and dry feed is more effective than treatment since few antifungal drugs are approved for food animals. Understanding how environmental conditions promote this disease is key to protecting turkey populations.

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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.

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Cgm1 is a β-galactoside α-(1 → 4)-mannosyltransferase involved in the biosynthesis of capsular glucuronoxylomannogalactan in Cryptococcus neoformans

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Researchers identified a new fungal enzyme called Cgm1 that helps the fungus Cryptococcus neoformans build its protective capsule, which allows it to evade the immune system. When this enzyme is disabled, the fungus becomes weak at body temperature and triggers a stronger immune response in infected mice. Since humans and plants don’t have this enzyme, it could be a promising target for developing new antifungal medications.

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

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Scientists tested five synthetic compounds called naphthoquinones to see if they could fight a serious fungal infection called cryptococcosis. They found that one compound called 2-MNQ worked well against the fungus and was even more effective when combined with a standard antifungal drug (amphotericin B). The combination was strong enough to potentially allow lower doses of the existing drug, which could reduce side effects while improving treatment outcomes.

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