oxidative stress – Page 7

Modulation of Abortiporus biennis Response to Oxidative Stress by Light as a New Eco-Friendly Approach with a Biotechnological Perspective

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Researchers studied how different colored lights and a chemical called menadione affect a white rot fungus called Abortiporus biennis. They found that combining red light with menadione significantly increased the fungus’s metabolic activity and production of useful compounds like laccase, an enzyme with industrial and medical applications. The study shows that using simple, eco-friendly stressors like colored light could help boost the fungus’s beneficial properties for practical use.

A Zn2-Cys6 transcription factor, TgZct4, reprograms antioxidant activity in the fungus Trichoderma guizhouense to defend against oxidative stress

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Researchers discovered a key protein switch in a beneficial fungus called Trichoderma guizhouense that helps it survive harmful oxidative stress. This fungus is used as a natural pesticide to protect crops from disease. The protein, called TgZct4, acts like a master controller that turns on the fungus’s defense systems when it encounters damaging chemical stress, making it more resilient and effective at protecting plants.

Inonotus hispidus Protects against Hyperlipidemia by Inhibiting Oxidative Stress and Inflammation through Nrf2/NF-κB Signaling in High Fat Diet Fed Mice

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Inonotus hispidus is an edible mushroom that may help treat obesity and high cholesterol by reducing fat levels and inflammation in the body. In mice fed a high-fat diet, the mushroom improved cholesterol profiles, reduced liver damage, and promoted beneficial gut bacteria. The beneficial effects appear to work through activating the body’s natural antioxidant defenses and reducing inflammation-causing proteins.

Harnessing Walnut-Based Zinc Oxide Nanoparticles: A Sustainable Approach to Combat the Disease Complex of Meloidogyne arenaria and Macrophomina phaseolina in Cowpea

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Researchers created tiny particles made from walnut leaves and zinc oxide that can fight harmful plant diseases caused by root-knot nematodes and fungal infections in cowpea plants. When applied to diseased plants, these natural nanoparticles significantly reduced pest populations, improved plant growth and health, and helped plants recover from stress without harming beneficial bacteria in the soil. This green technology offers farmers an environmentally friendly alternative to traditional chemical pesticides.

A Zn2-Cys6 transcription factor, TgZct4, reprograms antioxidant activity in the fungus Trichoderma guizhouense to defend against oxidative stress

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This research identifies a special protein called TgZct4 in a beneficial fungus called Trichoderma guizhouense that helps it survive harmful stress from hydrogen peroxide. When the fungus encounters oxidative stress, TgZct4 quickly activates and switches on genes that produce protective enzymes. This discovery helps scientists understand how this fungus can be such an effective biological pest control agent and could lead to improvements in using it as a natural alternative to chemical pesticides.

Strain-specific effects of Desulfovibrio on neurodegeneration and oxidative stress in a Caenorhabditis elegans PD model

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This research shows that different strains of bacteria called Desulfovibrio have very different effects on brain health. When scientists exposed worms to six different strains, they found that environmental strains actually protected against Parkinson’s-like symptoms, while strains from human patients and animals caused more damage. The worms strongly preferred to eat the environmental strains, suggesting they could sense which bacteria were harmful. This highlights how the type of bacteria in our gut matters just as much as the total amount.

A Possible Involvement of Sialidase in the Cell Response of the Antarctic Fungus Penicillium griseofulvum P29 to Oxidative Stress

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Scientists studied how a fungus from Antarctica called Penicillium griseofulvum survives in extremely cold conditions. They discovered that when exposed to cold temperatures, the fungus produces an enzyme called sialidase at higher levels, which helps it defend against damage caused by reactive oxygen species (harmful molecules). This response works alongside other protective enzymes, suggesting that sialidase is an important part of the fungus’s survival strategy in cold environments.

Yamabushitake Mushroom (Hericium erinaceus (Bull.) Pers. 1797) Mycelium Improves Reproductive System Dysfunction in Male Rats Induced by Polystyrene Microplastics

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A study found that Yamabushitake mushroom extract can help protect male reproductive health from damage caused by polystyrene microplastics found in everyday plastic products. The mushroom’s active compound, erinacine A, reduced inflammation and oxidative stress in rats, improved hormone levels, and enhanced sperm quality. This research suggests the mushroom could be developed into a supplement for men concerned about their fertility and reproductive health in our plastic-filled environment.

Polyphenolic Hispolon Derived from Medicinal Mushrooms of the Inonotus and Phellinus Genera Promotes Wound Healing in Hyperglycemia-Induced Impairments

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Researchers tested a natural compound called hispolon, extracted from medicinal mushrooms, to see if it could help heal wounds in diabetic patients. Using both laboratory cells and diabetic rats, they found that hispolon successfully reduced cell damage caused by high blood sugar, improved wound closure, and promoted healthy tissue growth. The compound worked as well as an existing diabetic wound cream and showed no harmful side effects, suggesting it could become a new natural treatment option for diabetic wound complications.

Graphene nanomaterials: A new frontier in preventing respiratory fungal infections

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Fungal lung infections are a serious problem, especially for people with weak immune systems. Researchers are exploring graphene nanomaterials as a new treatment approach that can deliver antifungal drugs directly to infected areas in the lungs. These tiny particles work by creating toxic stress inside fungal cells and breaking down their protective biofilms, while using smaller drug doses and causing fewer side effects than traditional treatments.

Research Keyword: oxidative stress