oxidative stress – Page 5

Synergistic inhibition of Aspergillus flavus by organic acid salts: growth, oxidative stress, and aflatoxin gene modulation

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A dangerous fungus called Aspergillus flavus contaminates animal feed and produces harmful toxins called aflatoxins that can make animals sick. Researchers tested a combination of three salt-based organic acids commonly used as natural food preservatives and found they work together to kill this fungus much better than using them individually. The combination damages the fungus’s cell structure, creates harmful reactive oxygen inside the cells, and shuts down the genes that produce the toxins, making it an excellent safe option for protecting animal feed.

Dietary Phytochemicals in Cardiovascular Disease Prevention and Management: A Comprehensive Review

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This review examines how plant-based compounds called phytochemicals can help prevent and manage heart disease. These compounds, found in foods like berries, nuts, tea, garlic, and whole grains, work through multiple mechanisms including reducing inflammation, lowering cholesterol, and improving blood vessel function. The review highlights that while pharmaceutical treatments exist, dietary approaches using phytochemical-rich foods offer a cost-effective and sustainable way to support heart health.

The anti-fatigue and sleep-aiding effects vary significantly among different recipes containing Ganoderma lucidum extracts

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Different recipes made from Ganoderma lucidum mushroom have different health benefits. This study tested two recipes in mice and found that one (PGB) was better for reducing fatigue and improving exercise performance, while the other (GBS) was better for improving sleep quality. The research shows that how you prepare and combine medicinal mushroom ingredients matters for what health benefits you get.

Impacts of dietary sodium alginate as a prebiotic on the oriental river prawn (Macrobrachium nipponense): A comprehensive analysis of growth, physiology, immunity, antioxidant, and metabolism

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This study tested whether sodium alginate, a natural substance from brown seaweed, could improve the health and growth of freshwater prawns used in farming. After 60 days of feeding trials, prawns given the highest dose of sodium alginate (4.0 grams per kilogram of feed) showed significantly better growth, improved immune function, and stronger antioxidant defenses compared to control groups. The supplement also promoted beneficial bacteria in the prawns’ digestive systems and improved their overall body composition.

Antioxidant Activity of Mushroom Extracts/Polysaccharides—Their Antiviral Properties and Plausible AntiCOVID-19 Properties

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Mushrooms contain special compounds called polysaccharides that act as natural antioxidants and can fight viruses. These compounds help boost the immune system and reduce inflammation in the body. While mushrooms have shown promise against various viruses including COVID-19, more research is needed to fully develop them as treatments.

Physiological response of chestnuts (Castanea mollissima Blume) infected by pathogenic fungi and their correlation with fruit decay

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This study examined how three types of fungal infections cause chestnuts to rot and decay. Researchers found that fungi produce enzymes that break down cell walls and trigger the fruit’s defense mechanisms, leading to tissue damage. When multiple fungi infect together, the damage is worse than individual infections. The findings suggest that reducing mechanical damage, using cold storage, modified atmosphere, and antimicrobial treatments can effectively prevent chestnut rot during storage.

FONPS6, a Nonribosomal Peptide Synthetase, Plays a Crucial Role in Achieving the Full Virulence Potential of the Vascular Wilt Pathogen Fusarium oxysporum f. sp. Niveum

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This research explores how a specific fungal gene called FoNPS6 helps the watermelon-wilt-causing fungus Fusarium oxysporum attack plants. Scientists deleted this gene and found that mutant fungi were much less aggressive, couldn’t handle stress well, and struggled to penetrate plant roots. When the gene was restored, the fungi regained full virulence. The study reveals that FoNPS6 helps the fungus absorb iron and break down plant defense chemicals.

Potential of Wormwood and Oak Bark-Based Supplement in Health Improvement of Nosema ceranae-Infected Honey Bees

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This study tested a natural dietary supplement made from wormwood and oak bark on honey bees infected with Nosema ceranae, a parasite that weakens bee colonies. The supplement significantly improved bee survival and reduced parasite levels, regardless of when it was given. It also reduced harmful oxidative stress caused by the infection. While it didn’t boost immune genes as strongly as some other treatments, its plant-based nature and consistent effectiveness make it a promising tool for beekeepers.

Aspergillus fumigatus dsRNA virus promotes fungal fitness and pathogenicity in the mammalian host

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Researchers discovered that a virus infecting the dangerous fungus Aspergillus fumigatus actually helps the fungus survive and cause worse infections in humans. By removing the virus from fungal strains, scientists found that the fungus became weaker and less able to cause disease in mice. Importantly, treating infected mice with an antiviral drug (ribavirin) reduced the viral load and helped the mice survive, suggesting a new approach to treating serious fungal infections.

Low Temperature Enhances N-Metabolism in Paxillus involutus Mycelia In Vitro: Evidence From an Untargeted Metabolomic Study

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Researchers studied how a common forest fungus (Paxillus involutus) responds to cold temperatures like those found in spring and autumn. Surprisingly, even though the fungus grew slower in the cold, it actually increased its nitrogen uptake and production of amino acids, the building blocks of proteins. This suggests the fungus has special adaptation mechanisms to thrive in cold environments, which could be important for understanding how climate change might affect forest health.

Research Keyword: oxidative stress